27 Aug
2013
27 Aug
'13
1:17 p.m.
(Sorry for the long post. Unfortunately, not all bugs are simple.)
I've got a crash bug that occurs when freeing To header parameters when
freeing a SIP message. It only occurs in certain circumstances. I can
reproduce the circumstances on my side consistently, but I suspect it
would be difficult for someone else to reproduce them independently.
Those circumstances are:
1. A Kamailio registrar routes an inbound call from the PSTN to a user
using a Snom One PBX using serial forking across two different bindings
(two different AOR domains) that come from two different registrars
(going into the same database).
2. The PBX sends back a 480 Temporarily Unavailable message to Kamailio
in response to every INVITE, on all branches, all the time.
3. It takes several attempts (usually 5-10) of calling that PBX to get
to Kamailio crash.
4. It only happens when the initial INVITE is processed using a
particular sequence of routes in the route script. There is nothing
unusual about the routes themselves, and I've eliminated all the side
effects and dependencies I can. It just doesn't happen when I have the
call zig through those routes as opposed to those routes. That suggests
package memory corruption that is tripped over by a particular
conjuncture of circumstances.
Here is the 480 Temporarily Unavailable message sent by the PBX. IPs
and numbers have been redacted for customer privacy, but the string
lengths are the same:
Here's the INVITE we're sending to the PBX:
INVITE sip:16504578199@184.178.234.121:5060;transport=udp;line=eccbc87e
SIP/2.0
Record-Route:
<sip:55.177.31.199;lr=on;ftag=c00080a-13c4-521c7390-2e862c51-6c96b554;vsf=AAAAAB0GDg4NDQUCBwd3A3AKHgEaFwUbCBsIHjEwOjUwNjA7aXN1cC1vbGk9MA--;dlgcor=5af.3bb>
From:
<sip:6784841111@192.13.219.87>;tag=c00080a-13c4-521c7390-2e862c51-6c96b554
To: <sip:16504578199@55.177.31.199:5060>
Call-ID:
CXC-72-6a0635d8-c00080a-13c4-521c7390-2e862c51-7eeb3166(a)192.13.219.87
CSeq: 1 INVITE
Via: SIP/2.0/UDP 55.177.31.199;branch=z9hG4bKcdfc.af721dd5.1
Via: SIP/2.0/UDP
192.13.219.87:5060;branch=z9hG4bK-3290-521c7390-2e862c51-3a62fcfd
Max-Forwards: 32
Content-Disposition: session;handling=required
Contact:
<sip:+16784841111@192.13.219.87:5060;isup-oli=0;maddr=192.13.219.87;transport=udp>
Content-Type: application/sdp
Content-Length: 274
Privacy: off
P-Asserted-Identity: "Unavailable" <sip:+16784841111@192.13.219.87>
v=0
o=Acme_UAS 0 1 IN IP4 175.154.21.89
s=SIP Media Capabilities
c=IN IP4 12.131.2.144
t=0 0
m=audio 6698 RTP/AVP 0 18 101
a=rtpmap:0 PCMU/8000
a=rtpmap:18 G729/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:18 annexb=no
a=fmtp:101 0-15
a=maxptime:30
a=sendrecv
And here's the 480 Temporarily Unavailable we get back every time we do,
on both branches. Nothing about it looks unusual to me:
SIP/2.0 480 Temporarily Unavailable
Via: SIP/2.0/UDP 55.177.31.199;branch=z9hG4bKcdfc.af721dd5.0
Via: SIP/2.0/UDP
192.13.219.87:5060;branch=z9hG4bK-3290-521c7390-2e862c51-3a62fcfd
Record-Route:
<sip:55.177.31.199;lr=on;ftag=c00080a-13c4-521c7390-2e862c51-6c96b554;vsf=AAAAAB0GDg4NDQUCBwd3A3AKHgEaFwUbCBsIHjEwOjUwNjA7aXN1cC1vbGk9MA--;dlgcor=5af.3bb>
From:
<sip:6784841111@192.13.219.87>;tag=c00080a-13c4-521c7390-2e862c51-6c96b554
To: <sip:16504578199@55.177.31.199:5060>;tag=d3516ef5fa
Call-ID:
CXC-72-6a0635d8-c00080a-13c4-521c7390-2e862c51-7eeb3166(a)192.13.219.87
CSeq: 1 INVITE
Contact: <sip:5282797646@195.105.225.111:5060;transport=udp>
Supported: 100rel, replaces, norefersub
Allow-Events: refer
Allow: INVITE, ACK, CANCEL, BYE, REFER, PRACK, INFO, UPDATE
Accept: application/sdp
User-Agent: snomONE/4.5.1.1107 Zeta Perseids
Content-Length: 0
But when this happens a few times, Kamailio crashes:
05:38:24.317781 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 592
E..l..@.4.2....yA.,......X..SIP/2.0 100 Trying
--
05:38:24.333573 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 865
E..}..@.4.1....yA.,......i.$SIP/2.0 480 Temporarily Unavailable
--
05:38:24.333767 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 411
E.......@..<A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:38:24.335593 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1187
E.......@..3A.,....y........INVITE
sip:16504578199@195.105.225.111:5060;transport=udp;line=eccbc87e SIP/2.0
--
05:38:24.385873 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 865
E..}..@.4.1....yA.,......i.$SIP/2.0 480 Temporarily Unavailable
--
05:38:24.386126 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 411
E.......@..:A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:38:24.831672 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1187
E.......@..1A.,....y........INVITE
sip:16504578199@195.105.225.111:5060;transport=udp;line=eccbc87e SIP/2.0
--
05:38:24.877627 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 865
E..}..@.4.1....yA.,......i.$SIP/2.0 480 Temporarily Unavailable
--
05:38:24.877933 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 411
E.......@..8A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:38:25.831617 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1187
E.......@../A.,....y........INVITE
sip:16504578199@195.105.225.111:5060;transport=udp;line=eccbc87e SIP/2.0
--
05:38:25.881560 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 865
E..}..@.4.1....yA.,......i.$SIP/2.0 480 Temporarily Unavailable
--
05:38:25.881731 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 411
E.......@..6A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:38:32.219484 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1183
E.......@..1A.,....y........INVITE
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:38:32.270568 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 588
E..h..@.4.2....yA.,......T..SIP/2.0 100 Trying
--
05:38:32.289120 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 861
E..y..@.4.1....yA.,......e.7SIP/2.0 480 Temporarily Unavailable
--
05:38:32.289284 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 408
E.......@..7A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:38:32.291180 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1183
E.......@../A.,....y........INVITE
sip:16504578199@195.105.225.111:5060;transport=udp;line=eccbc87e SIP/2.0
--
05:38:32.340763 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 861
E..y..@.4.1....yA.,......e.7SIP/2.0 480 Temporarily Unavailable
--
05:38:32.340986 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 408
E.......@..5A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:38:32.769133 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1183
E.......@..-A.,....y........INVITE
sip:16504578199@195.105.225.111:5060;transport=udp;line=eccbc87e SIP/2.0
--
05:38:32.814851 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 861
E..y..@.4.1....yA.,......e.7SIP/2.0 480 Temporarily Unavailable
--
05:38:32.814993 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 408
E.... ..@..3A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:38:33.769113 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1183
E....
--
05:38:33.815374 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 861
E..y..@.4.1....yA.,......e.7SIP/2.0 480 Temporarily Unavailable
--
05:38:33.815600 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 408
E.......@..1A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:38:42.371141 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1188
E.......@..$A.,....y........INVITE
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:38:42.422190 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 592
E..l..@.4.2....yA.,......X.jSIP/2.0 100 Trying
--
05:38:42.438849 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 865
E..}..@.4.1....yA.,......iE SIP/2.0 480 Temporarily Unavailable
--
05:38:42.439005 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 410
..@..-A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:38:42.440373 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1188
E.......@.."A.,....y........INVITE
sip:16504578199@195.105.225.111:5060;transport=udp;line=eccbc87e SIP/2.0
--
05:38:42.490261 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 865
E..}..@.4.1....yA.,......iE SIP/2.0 480 Temporarily Unavailable
--
05:38:42.490348 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 410
E.......@..+A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:38:42.894122 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1188
E.......@.. A.,....y........INVITE
sip:16504578199@195.105.225.111:5060;transport=udp;line=eccbc87e SIP/2.0
--
05:38:42.940323 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 865
E..}..@.4.1....yA.,......iE SIP/2.0 480 Temporarily Unavailable
--
05:38:42.940562 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 410
E.......@..)A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:38:43.894116 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1188
E.......@...A.,....y........INVITE
sip:16504578199@195.105.225.111:5060;transport=udp;line=eccbc87e SIP/2.0
--
05:38:43.940482 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 865
E..}..@.4.1....yA.,......iE SIP/2.0 480 Temporarily Unavailable
--
05:38:43.940604 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 410
E.......@..'A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:38:50.261551 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1188
E.......@...A.,....y........INVITE
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:38:50.313509 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 592
E..l..@.4.2....yA.,......X..SIP/2.0 100 Trying
--
05:38:50.329411 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 865
E..}..@.4.1....yA.,......i..SIP/2.0 480 Temporarily Unavailable
--
05:38:50.329584 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 411
E.......@..$A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:38:50.331250 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1188
E.......@...A.,....y........INVITE
sip:16504578199@195.105.225.111:5060;transport=udp;line=eccbc87e SIP/2.0
--
05:38:50.379415 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 865
E..}..@.4.1....yA.,......i..SIP/2.0 480 Temporarily Unavailable
--
05:38:50.379584 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 411
E.......@.."A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:38:50.769124 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1188
E.......@...A.,....y........INVITE
sip:16504578199@195.105.225.111:5060;transport=udp;line=eccbc87e SIP/2.0
--
05:38:50.817797 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 865
E..}..@.4.1....yA.,......i..SIP/2.0 480 Temporarily Unavailable
--
05:38:50.817936 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 411
E.......@.. A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:38:51.769119 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1188
E.......@...A.,....y........INVITE
sip:16504578199@195.105.225.111:5060;transport=udp;line=eccbc87e SIP/2.0
--
05:38:51.815689 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 865
E..}..@.4.1....yA.,......i..SIP/2.0 480 Temporarily Unavailable
--
05:38:51.815844 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 411
E.......@...A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:39:00.197890 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1182
E.......@...A.,....y........INVITE
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:39:00.248713 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 586
E..f..@.4.2....yA.,......RD_SIP/2.0 100 Trying
--
05:39:00.264983 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 859
E..w..@.4.1....yA.,......c-.SIP/2.0 480 Temporarily Unavailable
--
05:39:00.265140 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 408
E.......@...A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:39:00.266675 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1182
E.......@...A.,....y........INVITE
sip:16504578199@195.105.225.111:5060;transport=udp;line=eccbc87e SIP/2.0
--
05:39:00.317151 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 859
E..w..@.4.1....yA.,......c-.SIP/2.0 480 Temporarily Unavailable
--
05:39:00.317285 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 408
E.......@...A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:39:00.706627 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1182
E.... ..@...A.,....y........INVITE
sip:16504578199@195.105.225.111:5060;transport=udp;line=eccbc87e SIP/2.0
--
05:39:00.752906 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 859
E..w..@.4.1....yA.,......c-.SIP/2.0 480 Temporarily Unavailable
--
05:39:00.753054 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 408
E....!..@...A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:39:01.706639 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1182
E...."..@...A.,....y........INVITE
sip:16504578199@195.105.225.111:5060;transport=udp;line=eccbc87e SIP/2.0
--
05:39:01.753036 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 859
E..w..@.4.1....yA.,......c-.SIP/2.0 480 Temporarily Unavailable
--
05:39:01.753198 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 408
E....#..@...A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:39:08.088801 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1190
E....$..@..
--
05:39:08.139841 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 594
E..n..@.4.2....yA.,......ZhVSIP/2.0 100 Trying
--
05:39:08.156036 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 867
E.....@.4.1....yA.,......k4.SIP/2.0 480 Temporarily Unavailable
--
05:39:08.156222 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 412
E....%..@...A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:39:08.157697 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1190
E....&..@...A.,....y........INVITE
sip:16504578199@195.105.225.111:5060;transport=udp;line=eccbc87e SIP/2.0
--
05:39:08.208158 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 867
E.....@.4.1....yA.,......k4.SIP/2.0 480 Temporarily Unavailable
--
05:39:08.208282 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 412
E....'..@...A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:39:08.644104 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1190
E....(..@...A.,....y........INVITE
sip:16504578199@195.105.225.111:5060;transport=udp;line=eccbc87e SIP/2.0
--
05:39:08.690068 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 867
E.....@.4.1....yA.,......k4.SIP/2.0 480 Temporarily Unavailable
--
05:39:08.690212 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 412
E....)..@...A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:39:09.644112 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1190
E....*..@...A.,....y........INVITE
sip:16504578199@195.105.225.111:5060;transport=udp;line=eccbc87e SIP/2.0
--
05:39:09.690201 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 867
E.....@.4.1....yA.,......k4.SIP/2.0 480 Temporarily Unavailable
--
05:39:09.690374 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 412
A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
Anyway, my core dumps were showing me qm_*() free errors. To get at the
problem, I disabled loop unrolling, removed -09 and added the GDB debug
flags (-ggdb*) to the compile flags. When I do that, I get one of these
two call stacks--mostly the first, and occasionally the second:
#0 0x000000000055dc2e in free_to_params (tb=0x7fcb38f5f750)
at parser/parse_to.c:827
#1 0x000000000055dc75 in free_to (tb=0x7fcb38f5f750) at
parser/parse_to.c:836
#2 0x000000000053d9df in clean_hdr_field (hf=0x7fcb38f5fb50)
at parser/hf.c:169
#3 0x000000000053db49 in free_hdr_field_lst (hf=0x7fcb38f590e0)
at parser/hf.c:223
#4 0x0000000000542330 in free_sip_msg (msg=0x7fcb38f5edf0)
at parser/msg_parser.c:729
#5 0x000000000049d9cb in receive_msg (
buf=0x905580 "SIP/2.0 480 Temporarily Unavailable\r\nVia:
SIP/2.0/UDP 55.177.31.199;branch=z9hG4bK818c.b6308b63.0\r\nVia:
SIP/2.0/UDP 192.13.219.87:5060;branch=z9hG4bK-28db-521c65ea-2e50da5e-
8f9ae0d\r\nRecord-Route: <sip"..., len=864,
rcv_info=0x7fff2bcad950) at receive.c:294
#6 0x000000000052f5cd in udp_rcv_loop () at udp_server.c:557
#7 0x0000000000467de2 in main_loop () at main.c:1638
#8 0x000000000046ad8b in main (argc=13, argv=0x7fff2bcadc88) at
main.c:2566
----
#0 0x00000000005394e9 in qm_detach_free (qm=0x7f25c3037010,
frag=0x7f25c3256af0) at mem/q_malloc.c:266
#1 0x0000000000539744 in qm_malloc (qm=0x7f25c3037010, size=960)
at mem/q_malloc.c:386
#2 0x00000000004bba49 in rval_new_empty (extra_size=102) at
rvalue.c:236
#3 0x00000000004bbabb in rval_new_str (s=0x7fffbad95460, extra_size=80)
at rvalue.c:260
#4 0x00000000004be1b3 in rval_convert (h=0x7fffbad972a0,
msg=0x7f25c2587920,
type=RV_STR, v=0x7f25c3182ee8, c=0x7fffbad95620) at rvalue.c:1321
#5 0x00000000004bf657 in rval_str_lop2 (h=0x7fffbad972a0,
msg=0x7f25c2587920,
res=0x7fffbad95ac8, op=RVE_EQ_OP, l=0x7f25c3182ee8,
c1=0x7fffbad95620,
r=0x7f25c3183668, c2=0x0) at rvalue.c:1752
#6 0x00000000004c028d in rval_expr_eval_int (h=0x7fffbad972a0,
msg=0x7f25c2587920, res=0x7fffbad95ac8, rve=0x7f25c3183d40)
at rvalue.c:2058
#7 0x0000000000418d5a in do_action (h=0x7fffbad972a0, a=0x7f25c3185190,
msg=0x7f25c2587920) at action.c:1050
#8 0x0000000000421aa7 in run_actions (h=0x7fffbad972a0,
a=0x7f25c3182d40,
msg=0x7f25c2587920) at action.c:1573
#9 0x000000000042047f in do_action (h=0x7fffbad972a0, a=0x7f25c3185530,
msg=0x7f25c2587920) at action.c:1374
#10 0x0000000000421aa7 in run_actions (h=0x7fffbad972a0,
a=0x7f25c317a2a0,
msg=0x7f25c2587920) at action.c:1573
#11 0x0000000000418fa2 in do_action (h=0x7fffbad972a0, a=0x7f25c318ac10,
msg=0x7f25c2587920) at action.c:1065
#12 0x0000000000421aa7 in run_actions (h=0x7fffbad972a0,
a=0x7f25c318ac10,
---Type <return> to continue, or q <return> to quit---
msg=0x7f25c2587920) at action.c:1573
#13 0x0000000000418ffb in do_action (h=0x7fffbad972a0, a=0x7f25c318ad10,
msg=0x7f25c2587920) at action.c:1069
#14 0x0000000000421aa7 in run_actions (h=0x7fffbad972a0,
a=0x7f25c3163930,
msg=0x7f25c2587920) at action.c:1573
#15 0x0000000000416f3a in do_action (h=0x7fffbad972a0, a=0x7f25c3194fc0,
msg=0x7f25c2587920) at action.c:690
#16 0x0000000000421aa7 in run_actions (h=0x7fffbad972a0,
a=0x7f25c318eaf0,
msg=0x7f25c2587920) at action.c:1573
#17 0x0000000000422231 in run_top_route (a=0x7f25c318eaf0,
msg=0x7f25c2587920,
c=0x0) at action.c:1658
#18 0x00007f25c233b220 in run_failure_handlers (t=0x7f24be53b2a0,
rpl=0x7f25c32554b0, code=480, extra_flags=64) at t_reply.c:1024
#19 0x00007f25c233c39b in t_should_relay_response (Trans=0x7f24be53b2a0,
new_code=480, branch=0, should_store=0x7fffbad97580,
should_relay=0x7fffbad97584, cancel_data=0x7fffbad97790,
reply=0x7f25c32554b0) at t_reply.c:1300
#20 0x00007f25c233dec4 in relay_reply (t=0x7f24be53b2a0,
p_msg=0x7f25c32554b0,
branch=0, msg_status=480, cancel_data=0x7fffbad97790,
do_put_on_wait=1)
at t_reply.c:1703
#21 0x00007f25c2340f46 in reply_received (p_msg=0x7f25c32554b0)
at t_reply.c:2370
#22 0x0000000000458861 in do_forward_reply (msg=0x7f25c32554b0, mode=0)
at forward.c:799
#23 0x00000000004590d0 in forward_reply (msg=0x7f25c32554b0) at
forward.c:882
#24 0x000000000049d8a4 in receive_msg (
---Type <return> to continue, or q <return> to quit---
buf=0x905580 "SIP/2.0 480 Temporarily Unavailable\r\nVia:
SIP/2.0/UDP 55.177.31.199;branch=z9hG4bK0c.2611fa52.0\r\nVia:
SIP/2.0/UDP 192.13.219.87:5060;branch=z9hG4bK-293c-521c669b-2e538ce5-
7bec16be\r\nRecord-Route: <sip:"..., len=863,
rcv_info=0x7fffbad97af0) at receive.c:270
#25 0x000000000052f5cd in udp_rcv_loop () at udp_server.c:557
#26 0x0000000000467de2 in main_loop () at main.c:1638
#27 0x000000000046ad8b in main (argc=13, argv=0x7fffbad97e28) at
main.c:2566
But, 90% of the time, it's the first one. The second one shows up only
occasionally. Sometimes, this variant appears:
#0 0x0000000000538d7a in qm_insert_free (qm=0x7f069c7a6010,
frag=0x7f069c9c57e0) at mem/q_malloc.c:182
#1 0x0000000000539c3d in qm_free (qm=0x7f069c7a6010, p=0x7f069c9c57f0)
at mem/q_malloc.c:527
#2 0x000000000055dc4c in free_to_params (tb=0x7f069c9c73a0)
at parser/parse_to.c:828
#3 0x000000000055dc75 in free_to (tb=0x7f069c9c73a0) at
parser/parse_to.c:836
#4 0x000000000053d8d5 in clean_hdr_field (hf=0x7f069c7d7da0)
at parser/hf.c:113
#5 0x000000000053db49 in free_hdr_field_lst (hf=0x7f069c7d6340)
at parser/hf.c:223
#6 0x0000000000542330 in free_sip_msg (msg=0x7f069c9c44b0)
at parser/msg_parser.c:729
#7 0x000000000049d9cb in receive_msg (
buf=0x905580 "SIP/2.0 480 Temporarily Unavailable\r\nVia:
SIP/2.0/UDP 55.177.31.199;branch=z9hG4bKeb96.24a5718.0\r\nVia:
SIP/2.0/UDP 208.94.157.10:5060;branch=z9hG4bK-368a-521c67f1-3b3bc7c-
5366754e\r\nRecord-Route: <sip:55.177.31.199;lr=on;ftag=c00070a-13c4-
521c67f1-3b3bc7c-
3af08849;vsf=AAAAAB0GDg4NDQUCBwd3A3AKHgEaFwUbBhsGHjEwOjUwNjA7aXN1cC1vbGk
9MA--;dlgcor=789.3d01>\r\nFrom:
<sip:6784841111@208.94.157.10>;tag=c00070a-13c4-521c67f1-3b3bc7c-
3af08849\r\nTo:
<sip:16504578199@55.177.31.199:5060>;tag=3af8238437\r\nCall-ID: CXC-408-
6bb35b50-c00070a-13c4-521c67f1-3b3bc7c-3c339c13(a)208.94.157.10\r\nCSeq: 1
INVITE\r\nContact:
<sip:5282797646@195.105.225.111:5060;transport=udp>\r\nSupported:
100rel, replaces, norefersub\r\nAllow-Events: refer\r\nAllow: INVITE,
ACK, CANCEL, BYE, REFER, PRACK, INFO, UPDATE\r\nAccept:
application/sdp\r\nUser-Agent: snomONE/4.5.1.1107 Zeta
Perseids\r\nContent-Length: 0\r\n\r\n", len=862,
rcv_info=0x7fff87c23070)
So, I focused on the first one. The crash is on pkg_free() in this loop
in parser/parse_to.c:
void free_to_params(struct to_body* const tb)
{
struct to_param *tp=tb->param_lst;
struct to_param *foo;
while (tp){
foo = tp->next;
pkg_free(tp);
tp=foo;
}
}
Removing the pkg_free() definitely eliminates the crash. Or, at least,
I haven't been able to get the proxy to crash in that scenario.
In poking at the values of the to_body,
(gdb) frame 2
#2 0x000000000055dc4c in free_to_params (tb=0x7f069c9c73a0)
at parser/parse_to.c:828
828 pkg_free(tp);
(gdb) print tb
$30 = (struct to_body * const) 0x7f069c9c73a0
(gdb) print tb->uri->s
$31 = 0x9056e6 "sip:6784841111@208.94.157.10>;tag=c00070a-13c4-521c67f1-
3b3bc7c-3af08849\r\nTo:
<sip:16504578199@55.177.31.199:5060>;tag=3af8238437\r\nCall-ID: CXC-408-
6bb35b50-c00070a-13c4-521c67f1-3b3bc7c-3c339c13(a)208.94.157.10\r\nCSeq: 1
INVITE\r\nContact:
<sip:5282797646@195.105.225.111:5060;transport=udp>\r\nSupported:
100rel, replaces, norefersub\r\nAllow-Events: refer\r\nAllow: INVITE,
ACK, CANCEL, BYE, REFER, PRACK, INFO, UPDATE\r\nAccept:
application/sdp\r\nUser-Agent: snomONE/4.5.1.1107 Zeta
Perseids\r\nContent-Length: 0\r\n\r\n"
(gdb) print tb->param_lst
$32 = (struct to_param *) 0x7f069c9c57f0
(gdb) print tb->param_lst->next
$33 = (struct to_param *) 0x0
(gdb) print tb->param_lst->value
$34 = {
s = 0x905708 "c00070a-13c4-521c67f1-3b3bc7c-3af08849\r\nTo:
<sip:16504578199@55.177.31.199:5060>;tag=3af8238437\r\nCall-ID: CXC-408-
6bb35b50-c00070a-13c4-521c67f1-3b3bc7c-3c339c13(a)208.94.157.10\r\nCSeq: 1
INVITE\r\nContact:
<sip:5282797646@195.105.225.111:5060;transport=udp>\r\nSupported:
100rel, replaces, norefersub\r\nAllow-Events: refer\r\nAllow: INVITE,
ACK, CANCEL, BYE, REFER, PRACK, INFO, UPDATE\r\nAccept:
application/sdp\r\nUser-Agent: snomONE/4.5.1.1107 Zeta
Perseids\r\nContent-Length: 0\r\n\r\n", len = 38}
(gdb) print tb->param_lst->name
$35 = {s = 0x3e653834323335 <Address 0x3e653834323335 out of bounds>,
len = 3}
I eventually noticed that I can't seem to get at the 'name' value in the
first (and only) parameter list node:
(gdb) print tb->param_lst->name
$35 = {s = 0x3e653834323335 <Address 0x3e653834323335 out of bounds>,
len = 3}
I guess that should be 'tag', right? It's the only parameter,
unsurprisingly:
(gdb) print tb->param_lst->next
$33 = (struct to_param *) 0x0
Anyway, I can also say that accessing the pointer into the message
buffer to which it corresponds crashes it, but only for that 480 -- not
for any other SIP message that comes through the proxy:
while (tp){
foo = tp->next;
LM_ERR("Freeing up the hinterland: <%s>\n",
tp->name.s);
pkg_free(tp);
tp=foo;
}
(gdb) where
#0 0x0000003dbae480ac in vfprintf () from /lib64/libc.so.6
#1 0x0000003dbaee4fe0 in __vsyslog_chk () from /lib64/libc.so.6
#2 0x0000003dbaee5210 in syslog () from /lib64/libc.so.6
#3 0x000000000055dd47 in free_to_params (tb=0x7fc1def09610)
So, I really get the sense that there's something wrong with that 480
that's corrupting memory. Is that an accurate conclusion? If so, what
it could be, and what's the next step to try to diagnose further?
Thank you!
-- Alex
--
Alex Balashov - Principal
Evariste Systems LLC
235 E Ponce de Leon Ave
Suite 106
Decatur, GA 30030
United States
Tel: +1-678-954-0670
Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
27 Aug
27 Aug
3:47 p.m.
Hello,
can you try this patch?
-
http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=14835f8…
One reason for such crash could be double-free, which could eventually
happen because the pointer to params was not reset after freeing the list.
Cheers,
Daniel
On 8/27/13 12:17 PM, Alex Balashov wrote:
(Sorry for the long post. Unfortunately, not all bugs
are simple.)
I've got a crash bug that occurs when freeing To header parameters
when freeing a SIP message. It only occurs in certain circumstances.
I can reproduce the circumstances on my side consistently, but I
suspect it would be difficult for someone else to reproduce them
independently.
Those circumstances are:
1. A Kamailio registrar routes an inbound call from the PSTN to a user
using a Snom One PBX using serial forking across two different
bindings (two different AOR domains) that come from two different
registrars (going into the same database).
2. The PBX sends back a 480 Temporarily Unavailable message to
Kamailio in response to every INVITE, on all branches, all the time.
3. It takes several attempts (usually 5-10) of calling that PBX to get
to Kamailio crash.
4. It only happens when the initial INVITE is processed using a
particular sequence of routes in the route script. There is nothing
unusual about the routes themselves, and I've eliminated all the side
effects and dependencies I can. It just doesn't happen when I have
the call zig through those routes as opposed to those routes. That
suggests package memory corruption that is tripped over by a
particular conjuncture of circumstances.
Here is the 480 Temporarily Unavailable message sent by the PBX. IPs
and numbers have been redacted for customer privacy, but the string
lengths are the same:
Here's the INVITE we're sending to the PBX:
INVITE
sip:16504578199@184.178.234.121:5060;transport=udp;line=eccbc87e SIP/2.0
Record-Route:
<sip:55.177.31.199;lr=on;ftag=c00080a-13c4-521c7390-2e862c51-6c96b554;vsf=AAAAAB0GDg4NDQUCBwd3A3AKHgEaFwUbCBsIHjEwOjUwNjA7aXN1cC1vbGk9MA--;dlgcor=5af.3bb>
From:
<sip:6784841111@192.13.219.87>;tag=c00080a-13c4-521c7390-2e862c51-6c96b554
To: <sip:16504578199@55.177.31.199:5060>
Call-ID:
CXC-72-6a0635d8-c00080a-13c4-521c7390-2e862c51-7eeb3166(a)192.13.219.87
CSeq: 1 INVITE
Via: SIP/2.0/UDP 55.177.31.199;branch=z9hG4bKcdfc.af721dd5.1
Via: SIP/2.0/UDP
192.13.219.87:5060;branch=z9hG4bK-3290-521c7390-2e862c51-3a62fcfd
Max-Forwards: 32
Content-Disposition: session;handling=required
Contact:
<sip:+16784841111@192.13.219.87:5060;isup-oli=0;maddr=192.13.219.87;transport=udp>
Content-Type: application/sdp
Content-Length: 274
Privacy: off
P-Asserted-Identity: "Unavailable" <sip:+16784841111@192.13.219.87>
v=0
o=Acme_UAS 0 1 IN IP4 175.154.21.89
s=SIP Media Capabilities
c=IN IP4 12.131.2.144
t=0 0
m=audio 6698 RTP/AVP 0 18 101
a=rtpmap:0 PCMU/8000
a=rtpmap:18 G729/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:18 annexb=no
a=fmtp:101 0-15
a=maxptime:30
a=sendrecv
And here's the 480 Temporarily Unavailable we get back every time we
do, on both branches. Nothing about it looks unusual to me:
SIP/2.0 480 Temporarily Unavailable
Via: SIP/2.0/UDP 55.177.31.199;branch=z9hG4bKcdfc.af721dd5.0
Via: SIP/2.0/UDP
192.13.219.87:5060;branch=z9hG4bK-3290-521c7390-2e862c51-3a62fcfd
Record-Route:
<sip:55.177.31.199;lr=on;ftag=c00080a-13c4-521c7390-2e862c51-6c96b554;vsf=AAAAAB0GDg4NDQUCBwd3A3AKHgEaFwUbCBsIHjEwOjUwNjA7aXN1cC1vbGk9MA--;dlgcor=5af.3bb>
From:
<sip:6784841111@192.13.219.87>;tag=c00080a-13c4-521c7390-2e862c51-6c96b554
To: <sip:16504578199@55.177.31.199:5060>;tag=d3516ef5fa
Call-ID:
CXC-72-6a0635d8-c00080a-13c4-521c7390-2e862c51-7eeb3166(a)192.13.219.87
CSeq: 1 INVITE
Contact: <sip:5282797646@195.105.225.111:5060;transport=udp>
Supported: 100rel, replaces, norefersub
Allow-Events: refer
Allow: INVITE, ACK, CANCEL, BYE, REFER, PRACK, INFO, UPDATE
Accept: application/sdp
User-Agent: snomONE/4.5.1.1107 Zeta Perseids
Content-Length: 0
But when this happens a few times, Kamailio crashes:
05:38:24.317781 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 592
E..l..@.4.2....yA.,......X..SIP/2.0 100 Trying
--
05:38:24.333573 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 865
E..}..@.4.1....yA.,......i.$SIP/2.0 480 Temporarily Unavailable
--
05:38:24.333767 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 411
E.......@..<A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:38:24.335593 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1187
E.......@..3A.,....y........INVITE
sip:16504578199@195.105.225.111:5060;transport=udp;line=eccbc87e SIP/2.0
--
05:38:24.385873 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 865
E..}..@.4.1....yA.,......i.$SIP/2.0 480 Temporarily Unavailable
--
05:38:24.386126 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 411
E.......@..:A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:38:24.831672 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1187
E.......@..1A.,....y........INVITE
sip:16504578199@195.105.225.111:5060;transport=udp;line=eccbc87e SIP/2.0
--
05:38:24.877627 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 865
E..}..@.4.1....yA.,......i.$SIP/2.0 480 Temporarily Unavailable
--
05:38:24.877933 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 411
E.......@..8A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:38:25.831617 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1187
E.......@../A.,....y........INVITE
sip:16504578199@195.105.225.111:5060;transport=udp;line=eccbc87e SIP/2.0
--
05:38:25.881560 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 865
E..}..@.4.1....yA.,......i.$SIP/2.0 480 Temporarily Unavailable
--
05:38:25.881731 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 411
E.......@..6A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:38:32.219484 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1183
E.......@..1A.,....y........INVITE
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:38:32.270568 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 588
E..h..@.4.2....yA.,......T..SIP/2.0 100 Trying
--
05:38:32.289120 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 861
E..y..@.4.1....yA.,......e.7SIP/2.0 480 Temporarily Unavailable
--
05:38:32.289284 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 408
E.......@..7A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:38:32.291180 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1183
E.......@../A.,....y........INVITE
sip:16504578199@195.105.225.111:5060;transport=udp;line=eccbc87e SIP/2.0
--
05:38:32.340763 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 861
E..y..@.4.1....yA.,......e.7SIP/2.0 480 Temporarily Unavailable
--
05:38:32.340986 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 408
E.......@..5A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:38:32.769133 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1183
E.......@..-A.,....y........INVITE
sip:16504578199@195.105.225.111:5060;transport=udp;line=eccbc87e SIP/2.0
--
05:38:32.814851 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 861
E..y..@.4.1....yA.,......e.7SIP/2.0 480 Temporarily Unavailable
--
05:38:32.814993 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 408
E.... ..@..3A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:38:33.769113 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1183
E....
--
05:38:33.815374 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 861
E..y..@.4.1....yA.,......e.7SIP/2.0 480 Temporarily Unavailable
--
05:38:33.815600 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 408
E.......@..1A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:38:42.371141 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1188
E.......@..$A.,....y........INVITE
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:38:42.422190 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 592
E..l..@.4.2....yA.,......X.jSIP/2.0 100 Trying
--
05:38:42.438849 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 865
E..}..@.4.1....yA.,......iE SIP/2.0 480 Temporarily Unavailable
--
05:38:42.439005 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 410
..@..-A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:38:42.440373 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1188
E.......@.."A.,....y........INVITE
sip:16504578199@195.105.225.111:5060;transport=udp;line=eccbc87e SIP/2.0
--
05:38:42.490261 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 865
E..}..@.4.1....yA.,......iE SIP/2.0 480 Temporarily Unavailable
--
05:38:42.490348 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 410
E.......@..+A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:38:42.894122 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1188
E.......@.. A.,....y........INVITE
sip:16504578199@195.105.225.111:5060;transport=udp;line=eccbc87e SIP/2.0
--
05:38:42.940323 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 865
E..}..@.4.1....yA.,......iE SIP/2.0 480 Temporarily Unavailable
--
05:38:42.940562 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 410
E.......@..)A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:38:43.894116 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1188
E.......@...A.,....y........INVITE
sip:16504578199@195.105.225.111:5060;transport=udp;line=eccbc87e SIP/2.0
--
05:38:43.940482 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 865
E..}..@.4.1....yA.,......iE SIP/2.0 480 Temporarily Unavailable
--
05:38:43.940604 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 410
E.......@..'A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:38:50.261551 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1188
E.......@...A.,....y........INVITE
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:38:50.313509 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 592
E..l..@.4.2....yA.,......X..SIP/2.0 100 Trying
--
05:38:50.329411 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 865
E..}..@.4.1....yA.,......i..SIP/2.0 480 Temporarily Unavailable
--
05:38:50.329584 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 411
E.......@..$A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:38:50.331250 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1188
E.......@...A.,....y........INVITE
sip:16504578199@195.105.225.111:5060;transport=udp;line=eccbc87e SIP/2.0
--
05:38:50.379415 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 865
E..}..@.4.1....yA.,......i..SIP/2.0 480 Temporarily Unavailable
--
05:38:50.379584 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 411
E.......@.."A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:38:50.769124 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1188
E.......@...A.,....y........INVITE
sip:16504578199@195.105.225.111:5060;transport=udp;line=eccbc87e SIP/2.0
--
05:38:50.817797 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 865
E..}..@.4.1....yA.,......i..SIP/2.0 480 Temporarily Unavailable
--
05:38:50.817936 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 411
E.......@.. A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:38:51.769119 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1188
E.......@...A.,....y........INVITE
sip:16504578199@195.105.225.111:5060;transport=udp;line=eccbc87e SIP/2.0
--
05:38:51.815689 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 865
E..}..@.4.1....yA.,......i..SIP/2.0 480 Temporarily Unavailable
--
05:38:51.815844 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 411
E.......@...A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:39:00.197890 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1182
E.......@...A.,....y........INVITE
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:39:00.248713 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 586
E..f..@.4.2....yA.,......RD_SIP/2.0 100 Trying
--
05:39:00.264983 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 859
E..w..@.4.1....yA.,......c-.SIP/2.0 480 Temporarily Unavailable
--
05:39:00.265140 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 408
E.......@...A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:39:00.266675 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1182
E.......@...A.,....y........INVITE
sip:16504578199@195.105.225.111:5060;transport=udp;line=eccbc87e SIP/2.0
--
05:39:00.317151 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 859
E..w..@.4.1....yA.,......c-.SIP/2.0 480 Temporarily Unavailable
--
05:39:00.317285 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 408
E.......@...A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:39:00.706627 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1182
E.... ..@...A.,....y........INVITE
sip:16504578199@195.105.225.111:5060;transport=udp;line=eccbc87e SIP/2.0
--
05:39:00.752906 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 859
E..w..@.4.1....yA.,......c-.SIP/2.0 480 Temporarily Unavailable
--
05:39:00.753054 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 408
E....!..@...A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:39:01.706639 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1182
E...."..@...A.,....y........INVITE
sip:16504578199@195.105.225.111:5060;transport=udp;line=eccbc87e SIP/2.0
--
05:39:01.753036 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 859
E..w..@.4.1....yA.,......c-.SIP/2.0 480 Temporarily Unavailable
--
05:39:01.753198 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 408
E....#..@...A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:39:08.088801 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1190
E....$..@..
--
05:39:08.139841 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 594
E..n..@.4.2....yA.,......ZhVSIP/2.0 100 Trying
--
05:39:08.156036 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 867
E.....@.4.1....yA.,......k4.SIP/2.0 480 Temporarily Unavailable
--
05:39:08.156222 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 412
E....%..@...A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:39:08.157697 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1190
E....&..@...A.,....y........INVITE
sip:16504578199@195.105.225.111:5060;transport=udp;line=eccbc87e SIP/2.0
--
05:39:08.208158 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 867
E.....@.4.1....yA.,......k4.SIP/2.0 480 Temporarily Unavailable
--
05:39:08.208282 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 412
E....'..@...A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:39:08.644104 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1190
E....(..@...A.,....y........INVITE
sip:16504578199@195.105.225.111:5060;transport=udp;line=eccbc87e SIP/2.0
--
05:39:08.690068 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 867
E.....@.4.1....yA.,......k4.SIP/2.0 480 Temporarily Unavailable
--
05:39:08.690212 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 412
E....)..@...A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
--
05:39:09.644112 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 1190
E....*..@...A.,....y........INVITE
sip:16504578199@195.105.225.111:5060;transport=udp;line=eccbc87e SIP/2.0
--
05:39:09.690201 IP 195.105.225.111.5060 > 55.177.31.199.5060: SIP,
length: 867
E.....@.4.1....yA.,......k4.SIP/2.0 480 Temporarily Unavailable
--
05:39:09.690374 IP 55.177.31.199.5060 > 195.105.225.111.5060: SIP,
length: 412
A.,....y........ACK
sip:16504578199@195.105.225.111:5060;transport=udp;line=c81e728d SIP/2.0
Anyway, my core dumps were showing me qm_*() free errors. To get at
the problem, I disabled loop unrolling, removed -09 and added the GDB
debug flags (-ggdb*) to the compile flags. When I do that, I get one
of these two call stacks--mostly the first, and occasionally the second:
#0 0x000000000055dc2e in free_to_params (tb=0x7fcb38f5f750)
at parser/parse_to.c:827
#1 0x000000000055dc75 in free_to (tb=0x7fcb38f5f750) at
parser/parse_to.c:836
#2 0x000000000053d9df in clean_hdr_field (hf=0x7fcb38f5fb50)
at parser/hf.c:169
#3 0x000000000053db49 in free_hdr_field_lst (hf=0x7fcb38f590e0)
at parser/hf.c:223
#4 0x0000000000542330 in free_sip_msg (msg=0x7fcb38f5edf0)
at parser/msg_parser.c:729
#5 0x000000000049d9cb in receive_msg (
buf=0x905580 "SIP/2.0 480 Temporarily Unavailable\r\nVia:
SIP/2.0/UDP 55.177.31.199;branch=z9hG4bK818c.b6308b63.0\r\nVia:
SIP/2.0/UDP 192.13.219.87:5060;branch=z9hG4bK-28db-521c65ea-2e50da5e-
8f9ae0d\r\nRecord-Route: <sip"..., len=864,
rcv_info=0x7fff2bcad950) at receive.c:294
#6 0x000000000052f5cd in udp_rcv_loop () at udp_server.c:557
#7 0x0000000000467de2 in main_loop () at main.c:1638
#8 0x000000000046ad8b in main (argc=13, argv=0x7fff2bcadc88) at
main.c:2566
----
#0 0x00000000005394e9 in qm_detach_free (qm=0x7f25c3037010,
frag=0x7f25c3256af0) at mem/q_malloc.c:266
#1 0x0000000000539744 in qm_malloc (qm=0x7f25c3037010, size=960)
at mem/q_malloc.c:386
#2 0x00000000004bba49 in rval_new_empty (extra_size=102) at
rvalue.c:236
#3 0x00000000004bbabb in rval_new_str (s=0x7fffbad95460, extra_size=80)
at rvalue.c:260
#4 0x00000000004be1b3 in rval_convert (h=0x7fffbad972a0,
msg=0x7f25c2587920,
type=RV_STR, v=0x7f25c3182ee8, c=0x7fffbad95620) at rvalue.c:1321
#5 0x00000000004bf657 in rval_str_lop2 (h=0x7fffbad972a0,
msg=0x7f25c2587920,
res=0x7fffbad95ac8, op=RVE_EQ_OP, l=0x7f25c3182ee8,
c1=0x7fffbad95620,
r=0x7f25c3183668, c2=0x0) at rvalue.c:1752
#6 0x00000000004c028d in rval_expr_eval_int (h=0x7fffbad972a0,
msg=0x7f25c2587920, res=0x7fffbad95ac8, rve=0x7f25c3183d40)
at rvalue.c:2058
#7 0x0000000000418d5a in do_action (h=0x7fffbad972a0, a=0x7f25c3185190,
msg=0x7f25c2587920) at action.c:1050
#8 0x0000000000421aa7 in run_actions (h=0x7fffbad972a0,
a=0x7f25c3182d40,
msg=0x7f25c2587920) at action.c:1573
#9 0x000000000042047f in do_action (h=0x7fffbad972a0, a=0x7f25c3185530,
msg=0x7f25c2587920) at action.c:1374
#10 0x0000000000421aa7 in run_actions (h=0x7fffbad972a0,
a=0x7f25c317a2a0,
msg=0x7f25c2587920) at action.c:1573
#11 0x0000000000418fa2 in do_action (h=0x7fffbad972a0, a=0x7f25c318ac10,
msg=0x7f25c2587920) at action.c:1065
#12 0x0000000000421aa7 in run_actions (h=0x7fffbad972a0,
a=0x7f25c318ac10,
---Type <return> to continue, or q <return> to quit---
msg=0x7f25c2587920) at action.c:1573
#13 0x0000000000418ffb in do_action (h=0x7fffbad972a0, a=0x7f25c318ad10,
msg=0x7f25c2587920) at action.c:1069
#14 0x0000000000421aa7 in run_actions (h=0x7fffbad972a0,
a=0x7f25c3163930,
msg=0x7f25c2587920) at action.c:1573
#15 0x0000000000416f3a in do_action (h=0x7fffbad972a0, a=0x7f25c3194fc0,
msg=0x7f25c2587920) at action.c:690
#16 0x0000000000421aa7 in run_actions (h=0x7fffbad972a0,
a=0x7f25c318eaf0,
msg=0x7f25c2587920) at action.c:1573
#17 0x0000000000422231 in run_top_route (a=0x7f25c318eaf0,
msg=0x7f25c2587920,
c=0x0) at action.c:1658
#18 0x00007f25c233b220 in run_failure_handlers (t=0x7f24be53b2a0,
rpl=0x7f25c32554b0, code=480, extra_flags=64) at t_reply.c:1024
#19 0x00007f25c233c39b in t_should_relay_response (Trans=0x7f24be53b2a0,
new_code=480, branch=0, should_store=0x7fffbad97580,
should_relay=0x7fffbad97584, cancel_data=0x7fffbad97790,
reply=0x7f25c32554b0) at t_reply.c:1300
#20 0x00007f25c233dec4 in relay_reply (t=0x7f24be53b2a0,
p_msg=0x7f25c32554b0,
branch=0, msg_status=480, cancel_data=0x7fffbad97790,
do_put_on_wait=1)
at t_reply.c:1703
#21 0x00007f25c2340f46 in reply_received (p_msg=0x7f25c32554b0)
at t_reply.c:2370
#22 0x0000000000458861 in do_forward_reply (msg=0x7f25c32554b0, mode=0)
at forward.c:799
#23 0x00000000004590d0 in forward_reply (msg=0x7f25c32554b0) at
forward.c:882
#24 0x000000000049d8a4 in receive_msg (
---Type <return> to continue, or q <return> to quit---
buf=0x905580 "SIP/2.0 480 Temporarily Unavailable\r\nVia:
SIP/2.0/UDP 55.177.31.199;branch=z9hG4bK0c.2611fa52.0\r\nVia:
SIP/2.0/UDP 192.13.219.87:5060;branch=z9hG4bK-293c-521c669b-2e538ce5-
7bec16be\r\nRecord-Route: <sip:"..., len=863,
rcv_info=0x7fffbad97af0) at receive.c:270
#25 0x000000000052f5cd in udp_rcv_loop () at udp_server.c:557
#26 0x0000000000467de2 in main_loop () at main.c:1638
#27 0x000000000046ad8b in main (argc=13, argv=0x7fffbad97e28) at
main.c:2566
But, 90% of the time, it's the first one. The second one shows up
only occasionally. Sometimes, this variant appears:
#0 0x0000000000538d7a in qm_insert_free (qm=0x7f069c7a6010,
frag=0x7f069c9c57e0) at mem/q_malloc.c:182
#1 0x0000000000539c3d in qm_free (qm=0x7f069c7a6010, p=0x7f069c9c57f0)
at mem/q_malloc.c:527
#2 0x000000000055dc4c in free_to_params (tb=0x7f069c9c73a0)
at parser/parse_to.c:828
#3 0x000000000055dc75 in free_to (tb=0x7f069c9c73a0) at
parser/parse_to.c:836
#4 0x000000000053d8d5 in clean_hdr_field (hf=0x7f069c7d7da0)
at parser/hf.c:113
#5 0x000000000053db49 in free_hdr_field_lst (hf=0x7f069c7d6340)
at parser/hf.c:223
#6 0x0000000000542330 in free_sip_msg (msg=0x7f069c9c44b0)
at parser/msg_parser.c:729
#7 0x000000000049d9cb in receive_msg (
buf=0x905580 "SIP/2.0 480 Temporarily Unavailable\r\nVia:
SIP/2.0/UDP 55.177.31.199;branch=z9hG4bKeb96.24a5718.0\r\nVia:
SIP/2.0/UDP 208.94.157.10:5060;branch=z9hG4bK-368a-521c67f1-3b3bc7c-
5366754e\r\nRecord-Route: <sip:55.177.31.199;lr=on;ftag=c00070a-13c4-
521c67f1-3b3bc7c-
3af08849;vsf=AAAAAB0GDg4NDQUCBwd3A3AKHgEaFwUbBhsGHjEwOjUwNjA7aXN1cC1vbGk
9MA--;dlgcor=789.3d01>\r\nFrom:
<sip:6784841111@208.94.157.10>;tag=c00070a-13c4-521c67f1-3b3bc7c-
3af08849\r\nTo:
<sip:16504578199@55.177.31.199:5060>;tag=3af8238437\r\nCall-ID: CXC-408-
6bb35b50-c00070a-13c4-521c67f1-3b3bc7c-3c339c13(a)208.94.157.10\r\nCSeq: 1
INVITE\r\nContact:
<sip:5282797646@195.105.225.111:5060;transport=udp>\r\nSupported:
100rel, replaces, norefersub\r\nAllow-Events: refer\r\nAllow: INVITE,
ACK, CANCEL, BYE, REFER, PRACK, INFO, UPDATE\r\nAccept:
application/sdp\r\nUser-Agent: snomONE/4.5.1.1107 Zeta
Perseids\r\nContent-Length: 0\r\n\r\n", len=862,
rcv_info=0x7fff87c23070)
So, I focused on the first one. The crash is on pkg_free() in this
loop in parser/parse_to.c:
void free_to_params(struct to_body* const tb)
{
struct to_param *tp=tb->param_lst;
struct to_param *foo;
while (tp){
foo = tp->next;
pkg_free(tp);
tp=foo;
}
}
Removing the pkg_free() definitely eliminates the crash. Or, at
least, I haven't been able to get the proxy to crash in that scenario.
In poking at the values of the to_body,
(gdb) frame 2
#2 0x000000000055dc4c in free_to_params (tb=0x7f069c9c73a0)
at parser/parse_to.c:828
828 pkg_free(tp);
(gdb) print tb
$30 = (struct to_body * const) 0x7f069c9c73a0
(gdb) print tb->uri->s
$31 = 0x9056e6 "sip:6784841111@208.94.157.10>;tag=c00070a-13c4-521c67f1-
3b3bc7c-3af08849\r\nTo:
<sip:16504578199@55.177.31.199:5060>;tag=3af8238437\r\nCall-ID: CXC-408-
6bb35b50-c00070a-13c4-521c67f1-3b3bc7c-3c339c13(a)208.94.157.10\r\nCSeq: 1
INVITE\r\nContact:
<sip:5282797646@195.105.225.111:5060;transport=udp>\r\nSupported:
100rel, replaces, norefersub\r\nAllow-Events: refer\r\nAllow: INVITE,
ACK, CANCEL, BYE, REFER, PRACK, INFO, UPDATE\r\nAccept:
application/sdp\r\nUser-Agent: snomONE/4.5.1.1107 Zeta
Perseids\r\nContent-Length: 0\r\n\r\n"
(gdb) print tb->param_lst
$32 = (struct to_param *) 0x7f069c9c57f0
(gdb) print tb->param_lst->next
$33 = (struct to_param *) 0x0
(gdb) print tb->param_lst->value
$34 = {
s = 0x905708 "c00070a-13c4-521c67f1-3b3bc7c-3af08849\r\nTo:
<sip:16504578199@55.177.31.199:5060>;tag=3af8238437\r\nCall-ID: CXC-408-
6bb35b50-c00070a-13c4-521c67f1-3b3bc7c-3c339c13(a)208.94.157.10\r\nCSeq: 1
INVITE\r\nContact:
<sip:5282797646@195.105.225.111:5060;transport=udp>\r\nSupported:
100rel, replaces, norefersub\r\nAllow-Events: refer\r\nAllow: INVITE,
ACK, CANCEL, BYE, REFER, PRACK, INFO, UPDATE\r\nAccept:
application/sdp\r\nUser-Agent: snomONE/4.5.1.1107 Zeta
Perseids\r\nContent-Length: 0\r\n\r\n", len = 38}
(gdb) print tb->param_lst->name
$35 = {s = 0x3e653834323335 <Address 0x3e653834323335 out of bounds>,
len = 3}
I eventually noticed that I can't seem to get at the 'name' value in
the first (and only) parameter list node:
(gdb) print tb->param_lst->name
$35 = {s = 0x3e653834323335 <Address 0x3e653834323335 out of bounds>,
len = 3}
I guess that should be 'tag', right? It's the only parameter,
unsurprisingly:
(gdb) print tb->param_lst->next
$33 = (struct to_param *) 0x0
Anyway, I can also say that accessing the pointer into the message
buffer to which it corresponds crashes it, but only for that 480 --
not for any other SIP message that comes through the proxy:
while (tp){
foo = tp->next;
LM_ERR("Freeing up the hinterland: <%s>\n",
tp->name.s);
pkg_free(tp);
tp=foo;
}
(gdb) where
#0 0x0000003dbae480ac in vfprintf () from /lib64/libc.so.6
#1 0x0000003dbaee4fe0 in __vsyslog_chk () from /lib64/libc.so.6
#2 0x0000003dbaee5210 in syslog () from /lib64/libc.so.6
#3 0x000000000055dd47 in free_to_params (tb=0x7fc1def09610)
So, I really get the sense that there's something wrong with that 480
that's corrupting memory. Is that an accurate conclusion? If so,
what it could be, and what's the next step to try to diagnose further?
Thank you!
-- Alex
--
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio Advanced Trainings - Berlin, Oct 21-24; Miami, Nov 11-13, 2013
- more details about Kamailio trainings at http://www.asipto.com -
3:49 p.m.
Hi Daniel,
On 08/27/2013 08:47 AM, Daniel-Constantin Mierla wrote:
Hello,
can you try this patch?
-
http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=14835f8…
One reason for such crash could be double-free, which could eventually
happen because the pointer to params was not reset after freeing the list.
I will certainly try it, thank you.
However, it is curious that this crash occurs only in this exact
situation, only when calling this PBX, only when it has two registrants
to fork among, only when I use this combination of request
routes/subroutines.
--
Alex Balashov - Principal
Evariste Systems LLC
235 E Ponce de Leon Ave
Suite 106
Decatur, GA 30030
United States
Tel: +1-678-954-0670
Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
28 Aug
28 Aug
10:01 a.m.
Hi Daniel,
With your patch applied (setting param list head to NULL), it now
crashes in a different place:
Program terminated with signal 11, Segmentation fault.
#0 0x000000000055e602 in free_to_params (tb=0x7f31fee421a0)
at parser/parse_to.c:827
827 foo = tp->next;
Missing separate debuginfos, use: debuginfo-install
cyrus-sasl-lib-2.1.23-13.el6_3.1.x86_64 glibc-2.12-1.107.el6.x86_64
keyutils-libs-1.4-4.el6.x86_64 krb5-libs-1.10.3-10.el6_4.2.x86_64
libcom_err-1.41.12-14.el6.x86_64 libselinux-2.0.94-5.3.el6_4.1.x86_64
nspr-4.9.2-1.el6.x86_64 nss-3.14.0.0-12.el6.x86_64
nss-softokn-freebl-3.12.9-11.el6.x86_64 nss-util-3.14.0.0-2.el6.x86_64
openldap-2.4.23-32.el6_4.1.x86_64 openssl-1.0.0-27.el6_4.2.x86_64
postgresql92-libs-9.2.4-1PGDG.rhel6.x86_64 zlib-1.2.3-29.el6.x86_64
(gdb) where
#0 0x000000000055e602 in free_to_params (tb=0x7f31fee421a0)
at parser/parse_to.c:827
#1 0x000000000055e658 in free_to (tb=0x7f31fee421a0) at
parser/parse_to.c:838
#2 0x000000000053e2a9 in clean_hdr_field (hf=0x7f31fee23bc0)
at parser/hf.c:113
#3 0x000000000053e51d in free_hdr_field_lst (hf=0x7f31fee20a60)
at parser/hf.c:223
#4 0x0000000000542d04 in free_sip_msg (msg=0x7f31fee40df0)
at parser/msg_parser.c:729
#5 0x000000000049e39d in receive_msg (
buf=0x9065c0 "SIP/2.0 480 Temporarily Unavailable\r\nVia:
SIP/2.0/UDP 55.177.31.199;branch=z9hG4bKbe3a.dab6345.0\r\nVia:
SIP/2.0/UDP
192.13.219.87:5060;branch=z9hG4bK-1a97-521d9f57-331967d3-3174bfdc\r\nRecord-Route:
<sip"..., len=866,
rcv_info=0x7fff34138bd0) at receive.c:296
#6 0x000000000052ffa1 in udp_rcv_loop () at udp_server.c:557
#7 0x0000000000467de2 in main_loop () at main.c:1638
#8 0x000000000046ad8b in main (argc=13, argv=0x7fff34138f08) at main.c:2566
-- Alex
On 08/27/2013 08:49 AM, Alex Balashov wrote:
Hi Daniel,
On 08/27/2013 08:47 AM, Daniel-Constantin Mierla wrote:
--
Alex Balashov - Principal
Evariste Systems LLC
235 E Ponce de Leon Ave
Suite 106
Decatur, GA 30030
United States
Tel: +1-678-954-0670
Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
Hello,
can you try this patch?
-
http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=14835f8…
One reason for such crash could be double-free, which could eventually
happen because the pointer to params was not reset after freeing the
list.
I will certainly try it, thank you.
However, it is curious that this crash occurs only in this exact
situation, only when calling this PBX, only when it has two registrants
to fork among, only when I use this combination of request
routes/subroutines.
10:11 a.m.
With the patch applied, I sometimes get this crash, too:
(gdb) where
#0 0x0000000000539ed9 in qm_detach_free (qm=0x7f516c197010,
frag=0x7f516c3b6dc0) at mem/q_malloc.c:268
#1 0x000000000053a118 in qm_malloc (qm=0x7f516c197010, size=960)
at mem/q_malloc.c:386
#2 0x00000000004bc41d in rval_new_empty (extra_size=102) at rvalue.c:236
#3 0x00000000004bc48f in rval_new_str (s=0x7ffff3194e70, extra_size=80)
at rvalue.c:260
#4 0x00000000004beb87 in rval_convert (h=0x7ffff3196cb0,
msg=0x7f516b6e7920,
type=RV_STR, v=0x7f516c2e3728, c=0x7ffff3195030) at rvalue.c:1321
#5 0x00000000004c002b in rval_str_lop2 (h=0x7ffff3196cb0,
msg=0x7f516b6e7920,
res=0x7ffff31954d8, op=RVE_EQ_OP, l=0x7f516c2e3728, c1=0x7ffff3195030,
r=0x7f516c2e3ea8, c2=0x0) at rvalue.c:1752
#6 0x00000000004c0c61 in rval_expr_eval_int (h=0x7ffff3196cb0,
msg=0x7f516b6e7920, res=0x7ffff31954d8, rve=0x7f516c2e4580)
at rvalue.c:2058
#7 0x0000000000418d5a in do_action (h=0x7ffff3196cb0, a=0x7f516c2e59d0,
msg=0x7f516b6e7920) at action.c:1050
#8 0x0000000000421aa7 in run_actions (h=0x7ffff3196cb0, a=0x7f516c2e3580,
msg=0x7f516b6e7920) at action.c:1573
#9 0x000000000042047f in do_action (h=0x7ffff3196cb0, a=0x7f516c2e5d70,
msg=0x7f516b6e7920) at action.c:1374
#10 0x0000000000421aa7 in run_actions (h=0x7ffff3196cb0, a=0x7f516c2daae0,
msg=0x7f516b6e7920) at action.c:1573
#11 0x0000000000418fa2 in do_action (h=0x7ffff3196cb0, a=0x7f516c2eb450,
msg=0x7f516b6e7920) at action.c:1065
#12 0x0000000000421aa7 in run_actions (h=0x7ffff3196cb0, a=0x7f516c2eb450,
msg=0x7f516b6e7920) at action.c:1573
#13 0x0000000000418ffb in do_action (h=0x7ffff3196cb0, a=0x7f516c2eb550,
msg=0x7f516b6e7920) at action.c:1069
#14 0x0000000000421aa7 in run_actions (h=0x7ffff3196cb0, a=0x7f516c2c4170,
msg=0x7f516b6e7920) at action.c:1573
#15 0x0000000000416f3a in do_action (h=0x7ffff3196cb0, a=0x7f516c2f5800,
---Type <return> to continue, or q <return> to quit---
msg=0x7f516b6e7920) at action.c:690
#16 0x0000000000421aa7 in run_actions (h=0x7ffff3196cb0, a=0x7f516c2ef330,
msg=0x7f516b6e7920) at action.c:1573
#17 0x0000000000422231 in run_top_route (a=0x7f516c2ef330,
msg=0x7f516b6e7920,
c=0x0) at action.c:1658
#18 0x00007f516b49b220 in run_failure_handlers (t=0x7f506769a3b0,
rpl=0x7f516c3b5df0, code=480, extra_flags=64) at t_reply.c:1024
#19 0x00007f516b49c39b in t_should_relay_response (Trans=0x7f506769a3b0,
new_code=480, branch=0, should_store=0x7ffff3196f90,
should_relay=0x7ffff3196f94, cancel_data=0x7ffff31971a0,
reply=0x7f516c3b5df0) at t_reply.c:1300
#20 0x00007f516b49dec4 in relay_reply (t=0x7f506769a3b0,
p_msg=0x7f516c3b5df0,
branch=0, msg_status=480, cancel_data=0x7ffff31971a0, do_put_on_wait=1)
at t_reply.c:1703
#21 0x00007f516b4a0f46 in reply_received (p_msg=0x7f516c3b5df0)
at t_reply.c:2370
#22 0x0000000000458861 in do_forward_reply (msg=0x7f516c3b5df0, mode=0)
at forward.c:799
#23 0x00000000004590d0 in forward_reply (msg=0x7f516c3b5df0) at
forward.c:882
#24 0x000000000049e276 in receive_msg (
buf=0x9065c0 "SIP/2.0 480 Temporarily Unavailable\r\nVia:
SIP/2.0/UDP 55.177.31.199;branch=z9hG4bK25c.fe28da07.0\r\nVia:
SIP/2.0/UDP
192.13.219.87:5060;branch=z9hG4bK-1cc0-521da21e-332440e0-d482ab\r\nRecord-Route:
<sip:6"..., len=862,
rcv_info=0x7ffff3197520) at receive.c:272
#25 0x000000000052ffa1 in udp_rcv_loop () at udp_server.c:557
#26 0x0000000000467de2 in main_loop () at main.c:1638
#27 0x000000000046ad8b in main (argc=13, argv=0x7ffff3197858) at main.c:2566
I've seen it before in this scenario, but so infrequently that I didn't
think it was worth mentioning.
On 08/28/2013 03:01 AM, Alex Balashov wrote:
Hi Daniel,
With your patch applied (setting param list head to NULL), it now
crashes in a different place:
Program terminated with signal 11, Segmentation fault.
#0 0x000000000055e602 in free_to_params (tb=0x7f31fee421a0)
at parser/parse_to.c:827
827 foo = tp->next;
Missing separate debuginfos, use: debuginfo-install
cyrus-sasl-lib-2.1.23-13.el6_3.1.x86_64 glibc-2.12-1.107.el6.x86_64
keyutils-libs-1.4-4.el6.x86_64 krb5-libs-1.10.3-10.el6_4.2.x86_64
libcom_err-1.41.12-14.el6.x86_64 libselinux-2.0.94-5.3.el6_4.1.x86_64
nspr-4.9.2-1.el6.x86_64 nss-3.14.0.0-12.el6.x86_64
nss-softokn-freebl-3.12.9-11.el6.x86_64 nss-util-3.14.0.0-2.el6.x86_64
openldap-2.4.23-32.el6_4.1.x86_64 openssl-1.0.0-27.el6_4.2.x86_64
postgresql92-libs-9.2.4-1PGDG.rhel6.x86_64 zlib-1.2.3-29.el6.x86_64
(gdb) where
#0 0x000000000055e602 in free_to_params (tb=0x7f31fee421a0)
at parser/parse_to.c:827
#1 0x000000000055e658 in free_to (tb=0x7f31fee421a0) at
parser/parse_to.c:838
#2 0x000000000053e2a9 in clean_hdr_field (hf=0x7f31fee23bc0)
at parser/hf.c:113
#3 0x000000000053e51d in free_hdr_field_lst (hf=0x7f31fee20a60)
at parser/hf.c:223
#4 0x0000000000542d04 in free_sip_msg (msg=0x7f31fee40df0)
at parser/msg_parser.c:729
#5 0x000000000049e39d in receive_msg (
buf=0x9065c0 "SIP/2.0 480 Temporarily Unavailable\r\nVia:
SIP/2.0/UDP 55.177.31.199;branch=z9hG4bKbe3a.dab6345.0\r\nVia:
SIP/2.0/UDP
192.13.219.87:5060;branch=z9hG4bK-1a97-521d9f57-331967d3-3174bfdc\r\nRecord-Route:
<sip"..., len=866,
rcv_info=0x7fff34138bd0) at receive.c:296
#6 0x000000000052ffa1 in udp_rcv_loop () at udp_server.c:557
#7 0x0000000000467de2 in main_loop () at main.c:1638
#8 0x000000000046ad8b in main (argc=13, argv=0x7fff34138f08) at
main.c:2566
-- Alex
On 08/27/2013 08:49 AM, Alex Balashov wrote:
--
Alex Balashov - Principal
Evariste Systems LLC
235 E Ponce de Leon Ave
Suite 106
Decatur, GA 30030
United States
Tel: +1-678-954-0670
Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
Hi Daniel,
On 08/27/2013 08:47 AM, Daniel-Constantin Mierla wrote:
Hello,
can you try this patch?
-
http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=14835f8…
One reason for such crash could be double-free, which could eventually
happen because the pointer to params was not reset after freeing the
list.
I will certainly try it, thank you.
However, it is curious that this crash occurs only in this exact
situation, only when calling this PBX, only when it has two registrants
to fork among, only when I use this combination of request
routes/subroutines.
10:31 a.m.
Could be a buffer overflow somewhere.
First, do a 'bt full' for both cores and send the output, just to see if
something is strage inside the structures.
Then, can you compile with MEMDBG=1 in Makefile.defs, reinstall and test
again. Check the logs for memory related error messages and see if you
get head/tail overwritten.
Cheers,
Daniel
On 8/28/13 9:11 AM, Alex Balashov wrote:
With the patch applied, I sometimes get this crash,
too:
(gdb) where
#0 0x0000000000539ed9 in qm_detach_free (qm=0x7f516c197010,
frag=0x7f516c3b6dc0) at mem/q_malloc.c:268
#1 0x000000000053a118 in qm_malloc (qm=0x7f516c197010, size=960)
at mem/q_malloc.c:386
#2 0x00000000004bc41d in rval_new_empty (extra_size=102) at rvalue.c:236
#3 0x00000000004bc48f in rval_new_str (s=0x7ffff3194e70, extra_size=80)
at rvalue.c:260
#4 0x00000000004beb87 in rval_convert (h=0x7ffff3196cb0,
msg=0x7f516b6e7920,
type=RV_STR, v=0x7f516c2e3728, c=0x7ffff3195030) at rvalue.c:1321
#5 0x00000000004c002b in rval_str_lop2 (h=0x7ffff3196cb0,
msg=0x7f516b6e7920,
res=0x7ffff31954d8, op=RVE_EQ_OP, l=0x7f516c2e3728,
c1=0x7ffff3195030,
r=0x7f516c2e3ea8, c2=0x0) at rvalue.c:1752
#6 0x00000000004c0c61 in rval_expr_eval_int (h=0x7ffff3196cb0,
msg=0x7f516b6e7920, res=0x7ffff31954d8, rve=0x7f516c2e4580)
at rvalue.c:2058
#7 0x0000000000418d5a in do_action (h=0x7ffff3196cb0, a=0x7f516c2e59d0,
msg=0x7f516b6e7920) at action.c:1050
#8 0x0000000000421aa7 in run_actions (h=0x7ffff3196cb0,
a=0x7f516c2e3580,
msg=0x7f516b6e7920) at action.c:1573
#9 0x000000000042047f in do_action (h=0x7ffff3196cb0, a=0x7f516c2e5d70,
msg=0x7f516b6e7920) at action.c:1374
#10 0x0000000000421aa7 in run_actions (h=0x7ffff3196cb0,
a=0x7f516c2daae0,
msg=0x7f516b6e7920) at action.c:1573
#11 0x0000000000418fa2 in do_action (h=0x7ffff3196cb0, a=0x7f516c2eb450,
msg=0x7f516b6e7920) at action.c:1065
#12 0x0000000000421aa7 in run_actions (h=0x7ffff3196cb0,
a=0x7f516c2eb450,
msg=0x7f516b6e7920) at action.c:1573
#13 0x0000000000418ffb in do_action (h=0x7ffff3196cb0, a=0x7f516c2eb550,
msg=0x7f516b6e7920) at action.c:1069
#14 0x0000000000421aa7 in run_actions (h=0x7ffff3196cb0,
a=0x7f516c2c4170,
msg=0x7f516b6e7920) at action.c:1573
#15 0x0000000000416f3a in do_action (h=0x7ffff3196cb0, a=0x7f516c2f5800,
---Type <return> to continue, or q <return> to quit---
msg=0x7f516b6e7920) at action.c:690
#16 0x0000000000421aa7 in run_actions (h=0x7ffff3196cb0,
a=0x7f516c2ef330,
msg=0x7f516b6e7920) at action.c:1573
#17 0x0000000000422231 in run_top_route (a=0x7f516c2ef330,
msg=0x7f516b6e7920,
c=0x0) at action.c:1658
#18 0x00007f516b49b220 in run_failure_handlers (t=0x7f506769a3b0,
rpl=0x7f516c3b5df0, code=480, extra_flags=64) at t_reply.c:1024
#19 0x00007f516b49c39b in t_should_relay_response (Trans=0x7f506769a3b0,
new_code=480, branch=0, should_store=0x7ffff3196f90,
should_relay=0x7ffff3196f94, cancel_data=0x7ffff31971a0,
reply=0x7f516c3b5df0) at t_reply.c:1300
#20 0x00007f516b49dec4 in relay_reply (t=0x7f506769a3b0,
p_msg=0x7f516c3b5df0,
branch=0, msg_status=480, cancel_data=0x7ffff31971a0,
do_put_on_wait=1)
at t_reply.c:1703
#21 0x00007f516b4a0f46 in reply_received (p_msg=0x7f516c3b5df0)
at t_reply.c:2370
#22 0x0000000000458861 in do_forward_reply (msg=0x7f516c3b5df0, mode=0)
at forward.c:799
#23 0x00000000004590d0 in forward_reply (msg=0x7f516c3b5df0) at
forward.c:882
#24 0x000000000049e276 in receive_msg (
buf=0x9065c0 "SIP/2.0 480 Temporarily Unavailable\r\nVia:
SIP/2.0/UDP 55.177.31.199;branch=z9hG4bK25c.fe28da07.0\r\nVia:
SIP/2.0/UDP
192.13.219.87:5060;branch=z9hG4bK-1cc0-521da21e-332440e0-d482ab\r\nRecord-Route:
<sip:6"..., len=862,
rcv_info=0x7ffff3197520) at receive.c:272
#25 0x000000000052ffa1 in udp_rcv_loop () at udp_server.c:557
#26 0x0000000000467de2 in main_loop () at main.c:1638
#27 0x000000000046ad8b in main (argc=13, argv=0x7ffff3197858) at
main.c:2566
I've seen it before in this scenario, but so infrequently that I
didn't think it was worth mentioning.
On 08/28/2013 03:01 AM, Alex Balashov wrote:
--
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio Advanced Trainings - Berlin, Oct 21-24; Miami, Nov 11-13, 2013
- more details about Kamailio trainings at http://www.asipto.com -
Hi Daniel,
With your patch applied (setting param list head to NULL), it now
crashes in a different place:
Program terminated with signal 11, Segmentation fault.
#0 0x000000000055e602 in free_to_params (tb=0x7f31fee421a0)
at parser/parse_to.c:827
827 foo = tp->next;
Missing separate debuginfos, use: debuginfo-install
cyrus-sasl-lib-2.1.23-13.el6_3.1.x86_64 glibc-2.12-1.107.el6.x86_64
keyutils-libs-1.4-4.el6.x86_64 krb5-libs-1.10.3-10.el6_4.2.x86_64
libcom_err-1.41.12-14.el6.x86_64 libselinux-2.0.94-5.3.el6_4.1.x86_64
nspr-4.9.2-1.el6.x86_64 nss-3.14.0.0-12.el6.x86_64
nss-softokn-freebl-3.12.9-11.el6.x86_64 nss-util-3.14.0.0-2.el6.x86_64
openldap-2.4.23-32.el6_4.1.x86_64 openssl-1.0.0-27.el6_4.2.x86_64
postgresql92-libs-9.2.4-1PGDG.rhel6.x86_64 zlib-1.2.3-29.el6.x86_64
(gdb) where
#0 0x000000000055e602 in free_to_params (tb=0x7f31fee421a0)
at parser/parse_to.c:827
#1 0x000000000055e658 in free_to (tb=0x7f31fee421a0) at
parser/parse_to.c:838
#2 0x000000000053e2a9 in clean_hdr_field (hf=0x7f31fee23bc0)
at parser/hf.c:113
#3 0x000000000053e51d in free_hdr_field_lst (hf=0x7f31fee20a60)
at parser/hf.c:223
#4 0x0000000000542d04 in free_sip_msg (msg=0x7f31fee40df0)
at parser/msg_parser.c:729
#5 0x000000000049e39d in receive_msg (
buf=0x9065c0 "SIP/2.0 480 Temporarily Unavailable\r\nVia:
SIP/2.0/UDP 55.177.31.199;branch=z9hG4bKbe3a.dab6345.0\r\nVia:
SIP/2.0/UDP
192.13.219.87:5060;branch=z9hG4bK-1a97-521d9f57-331967d3-3174bfdc\r\nRecord-Route:
<sip"..., len=866,
rcv_info=0x7fff34138bd0) at receive.c:296
#6 0x000000000052ffa1 in udp_rcv_loop () at udp_server.c:557
#7 0x0000000000467de2 in main_loop () at main.c:1638
#8 0x000000000046ad8b in main (argc=13, argv=0x7fff34138f08) at
main.c:2566
-- Alex
On 08/27/2013 08:49 AM, Alex Balashov wrote:
Hi Daniel,
On 08/27/2013 08:47 AM, Daniel-Constantin Mierla wrote:
Hello,
can you try this patch?
-
http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=14835f8…
One reason for such crash could be double-free, which could eventually
happen because the pointer to params was not reset after freeing the
list.
I will certainly try it, thank you.
However, it is curious that this crash occurs only in this exact
situation, only when calling this PBX, only when it has two registrants
to fork among, only when I use this combination of request
routes/subroutines.
10:40 a.m.
Hi Daniel,
Here is the 'bt full' from the first core:
http://pastebin.com/Gtfw7vsD
I should add that this inbound routing scheme iterates through an array
of AVPs within failure_routes. I wonder if there is some sort of buffer
overflow issue there.
-- Alex
On 08/28/2013 03:31 AM, Daniel-Constantin Mierla wrote:
Could be a buffer overflow somewhere.
First, do a 'bt full' for both cores and send the output, just to see if
something is strage inside the structures.
Then, can you compile with MEMDBG=1 in Makefile.defs, reinstall and test
again. Check the logs for memory related error messages and see if you
get head/tail overwritten.
Cheers,
Daniel
On 8/28/13 9:11 AM, Alex Balashov wrote:
--
Alex Balashov - Principal
Evariste Systems LLC
235 E Ponce de Leon Ave
Suite 106
Decatur, GA 30030
United States
Tel: +1-678-954-0670
Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
With the patch applied, I sometimes get this
crash, too:
(gdb) where
#0 0x0000000000539ed9 in qm_detach_free (qm=0x7f516c197010,
frag=0x7f516c3b6dc0) at mem/q_malloc.c:268
#1 0x000000000053a118 in qm_malloc (qm=0x7f516c197010, size=960)
at mem/q_malloc.c:386
#2 0x00000000004bc41d in rval_new_empty (extra_size=102) at rvalue.c:236
#3 0x00000000004bc48f in rval_new_str (s=0x7ffff3194e70, extra_size=80)
at rvalue.c:260
#4 0x00000000004beb87 in rval_convert (h=0x7ffff3196cb0,
msg=0x7f516b6e7920,
type=RV_STR, v=0x7f516c2e3728, c=0x7ffff3195030) at rvalue.c:1321
#5 0x00000000004c002b in rval_str_lop2 (h=0x7ffff3196cb0,
msg=0x7f516b6e7920,
res=0x7ffff31954d8, op=RVE_EQ_OP, l=0x7f516c2e3728,
c1=0x7ffff3195030,
r=0x7f516c2e3ea8, c2=0x0) at rvalue.c:1752
#6 0x00000000004c0c61 in rval_expr_eval_int (h=0x7ffff3196cb0,
msg=0x7f516b6e7920, res=0x7ffff31954d8, rve=0x7f516c2e4580)
at rvalue.c:2058
#7 0x0000000000418d5a in do_action (h=0x7ffff3196cb0, a=0x7f516c2e59d0,
msg=0x7f516b6e7920) at action.c:1050
#8 0x0000000000421aa7 in run_actions (h=0x7ffff3196cb0,
a=0x7f516c2e3580,
msg=0x7f516b6e7920) at action.c:1573
#9 0x000000000042047f in do_action (h=0x7ffff3196cb0, a=0x7f516c2e5d70,
msg=0x7f516b6e7920) at action.c:1374
#10 0x0000000000421aa7 in run_actions (h=0x7ffff3196cb0,
a=0x7f516c2daae0,
msg=0x7f516b6e7920) at action.c:1573
#11 0x0000000000418fa2 in do_action (h=0x7ffff3196cb0, a=0x7f516c2eb450,
msg=0x7f516b6e7920) at action.c:1065
#12 0x0000000000421aa7 in run_actions (h=0x7ffff3196cb0,
a=0x7f516c2eb450,
msg=0x7f516b6e7920) at action.c:1573
#13 0x0000000000418ffb in do_action (h=0x7ffff3196cb0, a=0x7f516c2eb550,
msg=0x7f516b6e7920) at action.c:1069
#14 0x0000000000421aa7 in run_actions (h=0x7ffff3196cb0,
a=0x7f516c2c4170,
msg=0x7f516b6e7920) at action.c:1573
#15 0x0000000000416f3a in do_action (h=0x7ffff3196cb0, a=0x7f516c2f5800,
---Type <return> to continue, or q <return> to quit---
msg=0x7f516b6e7920) at action.c:690
#16 0x0000000000421aa7 in run_actions (h=0x7ffff3196cb0,
a=0x7f516c2ef330,
msg=0x7f516b6e7920) at action.c:1573
#17 0x0000000000422231 in run_top_route (a=0x7f516c2ef330,
msg=0x7f516b6e7920,
c=0x0) at action.c:1658
#18 0x00007f516b49b220 in run_failure_handlers (t=0x7f506769a3b0,
rpl=0x7f516c3b5df0, code=480, extra_flags=64) at t_reply.c:1024
#19 0x00007f516b49c39b in t_should_relay_response (Trans=0x7f506769a3b0,
new_code=480, branch=0, should_store=0x7ffff3196f90,
should_relay=0x7ffff3196f94, cancel_data=0x7ffff31971a0,
reply=0x7f516c3b5df0) at t_reply.c:1300
#20 0x00007f516b49dec4 in relay_reply (t=0x7f506769a3b0,
p_msg=0x7f516c3b5df0,
branch=0, msg_status=480, cancel_data=0x7ffff31971a0,
do_put_on_wait=1)
at t_reply.c:1703
#21 0x00007f516b4a0f46 in reply_received (p_msg=0x7f516c3b5df0)
at t_reply.c:2370
#22 0x0000000000458861 in do_forward_reply (msg=0x7f516c3b5df0, mode=0)
at forward.c:799
#23 0x00000000004590d0 in forward_reply (msg=0x7f516c3b5df0) at
forward.c:882
#24 0x000000000049e276 in receive_msg (
buf=0x9065c0 "SIP/2.0 480 Temporarily Unavailable\r\nVia:
SIP/2.0/UDP 55.177.31.199;branch=z9hG4bK25c.fe28da07.0\r\nVia:
SIP/2.0/UDP
192.13.219.87:5060;branch=z9hG4bK-1cc0-521da21e-332440e0-d482ab\r\nRecord-Route:
<sip:6"..., len=862,
rcv_info=0x7ffff3197520) at receive.c:272
#25 0x000000000052ffa1 in udp_rcv_loop () at udp_server.c:557
#26 0x0000000000467de2 in main_loop () at main.c:1638
#27 0x000000000046ad8b in main (argc=13, argv=0x7ffff3197858) at
main.c:2566
I've seen it before in this scenario, but so infrequently that I
didn't think it was worth mentioning.
On 08/28/2013 03:01 AM, Alex Balashov wrote:
Hi Daniel,
With your patch applied (setting param list head to NULL), it now
crashes in a different place:
Program terminated with signal 11, Segmentation fault.
#0 0x000000000055e602 in free_to_params (tb=0x7f31fee421a0)
at parser/parse_to.c:827
827 foo = tp->next;
Missing separate debuginfos, use: debuginfo-install
cyrus-sasl-lib-2.1.23-13.el6_3.1.x86_64 glibc-2.12-1.107.el6.x86_64
keyutils-libs-1.4-4.el6.x86_64 krb5-libs-1.10.3-10.el6_4.2.x86_64
libcom_err-1.41.12-14.el6.x86_64 libselinux-2.0.94-5.3.el6_4.1.x86_64
nspr-4.9.2-1.el6.x86_64 nss-3.14.0.0-12.el6.x86_64
nss-softokn-freebl-3.12.9-11.el6.x86_64 nss-util-3.14.0.0-2.el6.x86_64
openldap-2.4.23-32.el6_4.1.x86_64 openssl-1.0.0-27.el6_4.2.x86_64
postgresql92-libs-9.2.4-1PGDG.rhel6.x86_64 zlib-1.2.3-29.el6.x86_64
(gdb) where
#0 0x000000000055e602 in free_to_params (tb=0x7f31fee421a0)
at parser/parse_to.c:827
#1 0x000000000055e658 in free_to (tb=0x7f31fee421a0) at
parser/parse_to.c:838
#2 0x000000000053e2a9 in clean_hdr_field (hf=0x7f31fee23bc0)
at parser/hf.c:113
#3 0x000000000053e51d in free_hdr_field_lst (hf=0x7f31fee20a60)
at parser/hf.c:223
#4 0x0000000000542d04 in free_sip_msg (msg=0x7f31fee40df0)
at parser/msg_parser.c:729
#5 0x000000000049e39d in receive_msg (
buf=0x9065c0 "SIP/2.0 480 Temporarily Unavailable\r\nVia:
SIP/2.0/UDP 55.177.31.199;branch=z9hG4bKbe3a.dab6345.0\r\nVia:
SIP/2.0/UDP
192.13.219.87:5060;branch=z9hG4bK-1a97-521d9f57-331967d3-3174bfdc\r\nRecord-Route:
<sip"..., len=866,
rcv_info=0x7fff34138bd0) at receive.c:296
#6 0x000000000052ffa1 in udp_rcv_loop () at udp_server.c:557
#7 0x0000000000467de2 in main_loop () at main.c:1638
#8 0x000000000046ad8b in main (argc=13, argv=0x7fff34138f08) at
main.c:2566
-- Alex
On 08/27/2013 08:49 AM, Alex Balashov wrote:
Hi Daniel,
On 08/27/2013 08:47 AM, Daniel-Constantin Mierla wrote:
> Hello,
>
> can you try this patch?
> -
>
http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=14835f8…
>
>
>
>
>
> One reason for such crash could be double-free, which could eventually
> happen because the pointer to params was not reset after freeing the
> list.
I will certainly try it, thank you.
However, it is curious that this crash occurs only in this exact
situation, only when calling this PBX, only when it has two registrants
to fork among, only when I use this combination of request
routes/subroutines.
10:43 a.m.
Hello,
one more thing, in frame 0, do:
p *prev
Cheers,
Daniel
On 8/28/13 9:40 AM, Alex Balashov wrote:
Hi Daniel,
Here is the 'bt full' from the first core:
http://pastebin.com/Gtfw7vsD
I should add that this inbound routing scheme iterates through an
array of AVPs within failure_routes. I wonder if there is some sort
of buffer overflow issue there.
-- Alex
On 08/28/2013 03:31 AM, Daniel-Constantin Mierla wrote:
--
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio Advanced Trainings - Berlin, Oct 21-24; Miami, Nov 11-13, 2013
- more details about Kamailio trainings at http://www.asipto.com -
Could be a buffer overflow somewhere.
First, do a 'bt full' for both cores and send the output, just to see if
something is strage inside the structures.
Then, can you compile with MEMDBG=1 in Makefile.defs, reinstall and test
again. Check the logs for memory related error messages and see if you
get head/tail overwritten.
Cheers,
Daniel
On 8/28/13 9:11 AM, Alex Balashov wrote:
With the patch applied, I sometimes get this
crash, too:
(gdb) where
#0 0x0000000000539ed9 in qm_detach_free (qm=0x7f516c197010,
frag=0x7f516c3b6dc0) at mem/q_malloc.c:268
#1 0x000000000053a118 in qm_malloc (qm=0x7f516c197010, size=960)
at mem/q_malloc.c:386
#2 0x00000000004bc41d in rval_new_empty (extra_size=102) at
rvalue.c:236
#3 0x00000000004bc48f in rval_new_str (s=0x7ffff3194e70,
extra_size=80)
at rvalue.c:260
#4 0x00000000004beb87 in rval_convert (h=0x7ffff3196cb0,
msg=0x7f516b6e7920,
type=RV_STR, v=0x7f516c2e3728, c=0x7ffff3195030) at rvalue.c:1321
#5 0x00000000004c002b in rval_str_lop2 (h=0x7ffff3196cb0,
msg=0x7f516b6e7920,
res=0x7ffff31954d8, op=RVE_EQ_OP, l=0x7f516c2e3728,
c1=0x7ffff3195030,
r=0x7f516c2e3ea8, c2=0x0) at rvalue.c:1752
#6 0x00000000004c0c61 in rval_expr_eval_int (h=0x7ffff3196cb0,
msg=0x7f516b6e7920, res=0x7ffff31954d8, rve=0x7f516c2e4580)
at rvalue.c:2058
#7 0x0000000000418d5a in do_action (h=0x7ffff3196cb0,
a=0x7f516c2e59d0,
msg=0x7f516b6e7920) at action.c:1050
#8 0x0000000000421aa7 in run_actions (h=0x7ffff3196cb0,
a=0x7f516c2e3580,
msg=0x7f516b6e7920) at action.c:1573
#9 0x000000000042047f in do_action (h=0x7ffff3196cb0,
a=0x7f516c2e5d70,
msg=0x7f516b6e7920) at action.c:1374
#10 0x0000000000421aa7 in run_actions (h=0x7ffff3196cb0,
a=0x7f516c2daae0,
msg=0x7f516b6e7920) at action.c:1573
#11 0x0000000000418fa2 in do_action (h=0x7ffff3196cb0,
a=0x7f516c2eb450,
msg=0x7f516b6e7920) at action.c:1065
#12 0x0000000000421aa7 in run_actions (h=0x7ffff3196cb0,
a=0x7f516c2eb450,
msg=0x7f516b6e7920) at action.c:1573
#13 0x0000000000418ffb in do_action (h=0x7ffff3196cb0,
a=0x7f516c2eb550,
msg=0x7f516b6e7920) at action.c:1069
#14 0x0000000000421aa7 in run_actions (h=0x7ffff3196cb0,
a=0x7f516c2c4170,
msg=0x7f516b6e7920) at action.c:1573
#15 0x0000000000416f3a in do_action (h=0x7ffff3196cb0,
a=0x7f516c2f5800,
---Type <return> to continue, or q <return> to quit---
msg=0x7f516b6e7920) at action.c:690
#16 0x0000000000421aa7 in run_actions (h=0x7ffff3196cb0,
a=0x7f516c2ef330,
msg=0x7f516b6e7920) at action.c:1573
#17 0x0000000000422231 in run_top_route (a=0x7f516c2ef330,
msg=0x7f516b6e7920,
c=0x0) at action.c:1658
#18 0x00007f516b49b220 in run_failure_handlers (t=0x7f506769a3b0,
rpl=0x7f516c3b5df0, code=480, extra_flags=64) at t_reply.c:1024
#19 0x00007f516b49c39b in t_should_relay_response
(Trans=0x7f506769a3b0,
new_code=480, branch=0, should_store=0x7ffff3196f90,
should_relay=0x7ffff3196f94, cancel_data=0x7ffff31971a0,
reply=0x7f516c3b5df0) at t_reply.c:1300
#20 0x00007f516b49dec4 in relay_reply (t=0x7f506769a3b0,
p_msg=0x7f516c3b5df0,
branch=0, msg_status=480, cancel_data=0x7ffff31971a0,
do_put_on_wait=1)
at t_reply.c:1703
#21 0x00007f516b4a0f46 in reply_received (p_msg=0x7f516c3b5df0)
at t_reply.c:2370
#22 0x0000000000458861 in do_forward_reply (msg=0x7f516c3b5df0, mode=0)
at forward.c:799
#23 0x00000000004590d0 in forward_reply (msg=0x7f516c3b5df0) at
forward.c:882
#24 0x000000000049e276 in receive_msg (
buf=0x9065c0 "SIP/2.0 480 Temporarily Unavailable\r\nVia:
SIP/2.0/UDP 55.177.31.199;branch=z9hG4bK25c.fe28da07.0\r\nVia:
SIP/2.0/UDP
192.13.219.87:5060;branch=z9hG4bK-1cc0-521da21e-332440e0-d482ab\r\nRecord-Route:
<sip:6"..., len=862,
rcv_info=0x7ffff3197520) at receive.c:272
#25 0x000000000052ffa1 in udp_rcv_loop () at udp_server.c:557
#26 0x0000000000467de2 in main_loop () at main.c:1638
#27 0x000000000046ad8b in main (argc=13, argv=0x7ffff3197858) at
main.c:2566
I've seen it before in this scenario, but so infrequently that I
didn't think it was worth mentioning.
On 08/28/2013 03:01 AM, Alex Balashov wrote:
Hi Daniel,
With your patch applied (setting param list head to NULL), it now
crashes in a different place:
Program terminated with signal 11, Segmentation fault.
#0 0x000000000055e602 in free_to_params (tb=0x7f31fee421a0)
at parser/parse_to.c:827
827 foo = tp->next;
Missing separate debuginfos, use: debuginfo-install
cyrus-sasl-lib-2.1.23-13.el6_3.1.x86_64 glibc-2.12-1.107.el6.x86_64
keyutils-libs-1.4-4.el6.x86_64 krb5-libs-1.10.3-10.el6_4.2.x86_64
libcom_err-1.41.12-14.el6.x86_64 libselinux-2.0.94-5.3.el6_4.1.x86_64
nspr-4.9.2-1.el6.x86_64 nss-3.14.0.0-12.el6.x86_64
nss-softokn-freebl-3.12.9-11.el6.x86_64 nss-util-3.14.0.0-2.el6.x86_64
openldap-2.4.23-32.el6_4.1.x86_64 openssl-1.0.0-27.el6_4.2.x86_64
postgresql92-libs-9.2.4-1PGDG.rhel6.x86_64 zlib-1.2.3-29.el6.x86_64
(gdb) where
#0 0x000000000055e602 in free_to_params (tb=0x7f31fee421a0)
at parser/parse_to.c:827
#1 0x000000000055e658 in free_to (tb=0x7f31fee421a0) at
parser/parse_to.c:838
#2 0x000000000053e2a9 in clean_hdr_field (hf=0x7f31fee23bc0)
at parser/hf.c:113
#3 0x000000000053e51d in free_hdr_field_lst (hf=0x7f31fee20a60)
at parser/hf.c:223
#4 0x0000000000542d04 in free_sip_msg (msg=0x7f31fee40df0)
at parser/msg_parser.c:729
#5 0x000000000049e39d in receive_msg (
buf=0x9065c0 "SIP/2.0 480 Temporarily Unavailable\r\nVia:
SIP/2.0/UDP 55.177.31.199;branch=z9hG4bKbe3a.dab6345.0\r\nVia:
SIP/2.0/UDP
192.13.219.87:5060;branch=z9hG4bK-1a97-521d9f57-331967d3-3174bfdc\r\nRecord-Route:
<sip"..., len=866,
rcv_info=0x7fff34138bd0) at receive.c:296
#6 0x000000000052ffa1 in udp_rcv_loop () at udp_server.c:557
#7 0x0000000000467de2 in main_loop () at main.c:1638
#8 0x000000000046ad8b in main (argc=13, argv=0x7fff34138f08) at
main.c:2566
-- Alex
On 08/27/2013 08:49 AM, Alex Balashov wrote:
> Hi Daniel,
>
> On 08/27/2013 08:47 AM, Daniel-Constantin Mierla wrote:
>
>> Hello,
>>
>> can you try this patch?
>> -
>>
http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=14835f8…
>>
>>
>>
>>
>>
>>
>> One reason for such crash could be double-free, which could
>> eventually
>> happen because the pointer to params was not reset after freeing the
>> list.
>
> I will certainly try it, thank you.
>
> However, it is curious that this crash occurs only in this exact
> situation, only when calling this PBX, only when it has two
> registrants
> to fork among, only when I use this combination of request
> routes/subroutines.
>
10:47 a.m.
On 08/28/2013 03:43 AM, Daniel-Constantin Mierla wrote:
Hello,
one more thing, in frame 0, do:
p *prev
In the core dump whose 'bt full' output I put into pastebin, right?
In the case of this crash (with the head/tail message with MEMDBG=1),
the backtrace was a bit more conventional:
(gdb) where
#0 0x0000003dbae328a5 in raise () from /lib64/libc.so.6
#1 0x0000003dbae34085 in abort () from /lib64/libc.so.6
#2 0x000000000053c4c1 in qm_debug_frag (qm=0x7f99b6e80010,
f=0x7f99b713d008)
at mem/q_malloc.c:161
#3 0x000000000053de76 in qm_free (qm=0x7f99b6e80010, p=0x7f99b713d038,
file=0x6165b1 "<core>: parser/parse_to.c", func=0x617e40
"free_to",
line=839) at mem/q_malloc.c:462
#4 0x00000000005657fd in free_to (tb=0x7f99b713d038) at
parser/parse_to.c:839
#5 0x0000000000544ee5 in clean_hdr_field (hf=0x7f99b6eea038)
at parser/hf.c:113
#6 0x000000000054515a in free_hdr_field_lst (hf=0x7f99b6ee94f0)
at parser/hf.c:223
#7 0x00000000005499e5 in free_sip_msg (msg=0x7f99b713b778)
at parser/msg_parser.c:729
#8 0x000000000049f89d in receive_msg (
buf=0x910e20 "SIP/2.0 480 Temporarily Unavailable\r\nVia:
SIP/2.0/UDP 55.177.31.199;branch=z9hG4bK5d98.917ccf34.0\r\nVia:
SIP/2.0/UDP
208.94.157.10:5060;branch=z9hG4bK-2d1a-521da9d0-89ce197-48a5d43\r\nRecord-Route:
<sip:"..., len=860,
rcv_info=0x7fffd1c69db0) at receive.c:296
#9 0x0000000000532665 in udp_rcv_loop () at udp_server.c:557
#10 0x00000000004688a1 in main_loop () at main.c:1638
#11 0x000000000046b84a in main (argc=13, argv=0x7fffd1c6a0e8) at main.c:2566
I did wander into frame 3 here and printed the dereferenced value of
'prev' as requested:
(gdb) frame 3
#3 0x000000000053de76 in qm_free (qm=0x7f99b6e80010, p=0x7f99b713d038,
file=0x6165b1 "<core>: parser/parse_to.c", func=0x617e40
"free_to",
line=839) at mem/q_malloc.c:462
462 qm_debug_frag(qm, f);
(gdb) print *prev
$1 = {size = 16160473784116415304, u = {nxt_free = 0x48bf7500e07d8348,
is_free = 5242037137909318472},
file = 0x1c880c748d8458b <Address 0x1c880c748d8458b out of bounds>,
func = 0x8348000000000000 <Address 0x8348000000000000 out of bounds>,
line = 9892250880904472772, check = 9892183985613198309}
-- Alex
--
Alex Balashov - Principal
Evariste Systems LLC
235 E Ponce de Leon Ave
Suite 106
Decatur, GA 30030
United States
Tel: +1-678-954-0670
Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
10:55 a.m.
As expected, a buffer overflow somewhere.
Look in logs for a message like:
BUG: qm_*: prev. fragm. tail overwritten ...
and give also the output of 'bt full'.
Cheers,
Daniel
On 8/28/13 9:47 AM, Alex Balashov wrote:
On 08/28/2013 03:43 AM, Daniel-Constantin Mierla
wrote:
--
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio Advanced Trainings - Berlin, Oct 21-24; Miami, Nov 11-13, 2013
- more details about Kamailio trainings at http://www.asipto.com -
Hello,
one more thing, in frame 0, do:
p *prev
In the core dump whose 'bt full' output I put into pastebin, right?
In the case of this crash (with the head/tail message with MEMDBG=1),
the backtrace was a bit more conventional:
(gdb) where
#0 0x0000003dbae328a5 in raise () from /lib64/libc.so.6
#1 0x0000003dbae34085 in abort () from /lib64/libc.so.6
#2 0x000000000053c4c1 in qm_debug_frag (qm=0x7f99b6e80010,
f=0x7f99b713d008)
at mem/q_malloc.c:161
#3 0x000000000053de76 in qm_free (qm=0x7f99b6e80010, p=0x7f99b713d038,
file=0x6165b1 "<core>: parser/parse_to.c", func=0x617e40
"free_to",
line=839) at mem/q_malloc.c:462
#4 0x00000000005657fd in free_to (tb=0x7f99b713d038) at
parser/parse_to.c:839
#5 0x0000000000544ee5 in clean_hdr_field (hf=0x7f99b6eea038)
at parser/hf.c:113
#6 0x000000000054515a in free_hdr_field_lst (hf=0x7f99b6ee94f0)
at parser/hf.c:223
#7 0x00000000005499e5 in free_sip_msg (msg=0x7f99b713b778)
at parser/msg_parser.c:729
#8 0x000000000049f89d in receive_msg (
buf=0x910e20 "SIP/2.0 480 Temporarily Unavailable\r\nVia:
SIP/2.0/UDP 55.177.31.199;branch=z9hG4bK5d98.917ccf34.0\r\nVia:
SIP/2.0/UDP
208.94.157.10:5060;branch=z9hG4bK-2d1a-521da9d0-89ce197-48a5d43\r\nRecord-Route:
<sip:"..., len=860,
rcv_info=0x7fffd1c69db0) at receive.c:296
#9 0x0000000000532665 in udp_rcv_loop () at udp_server.c:557
#10 0x00000000004688a1 in main_loop () at main.c:1638
#11 0x000000000046b84a in main (argc=13, argv=0x7fffd1c6a0e8) at
main.c:2566
I did wander into frame 3 here and printed the dereferenced value of
'prev' as requested:
(gdb) frame 3
#3 0x000000000053de76 in qm_free (qm=0x7f99b6e80010, p=0x7f99b713d038,
file=0x6165b1 "<core>: parser/parse_to.c", func=0x617e40
"free_to",
line=839) at mem/q_malloc.c:462
462 qm_debug_frag(qm, f);
(gdb) print *prev
$1 = {size = 16160473784116415304, u = {nxt_free = 0x48bf7500e07d8348,
is_free = 5242037137909318472},
file = 0x1c880c748d8458b <Address 0x1c880c748d8458b out of bounds>,
func = 0x8348000000000000 <Address 0x8348000000000000 out of bounds>,
line = 9892250880904472772, check = 9892183985613198309}
-- Alex
11 a.m.
On 08/28/2013 03:55 AM, Daniel-Constantin Mierla wrote:
As expected, a buffer overflow somewhere.
Look in logs for a message like:
BUG: qm_*: prev. fragm. tail overwritten ...
and give also the output of 'bt full'.
Here's the 'bt full' from the core dump whose backtrace I last pasted
(the one that crashes in free_to()) and to which the head/tail
overwritten message corresponds:
http://pastebin.com/gk8cR26m
-- Alex
--
Alex Balashov - Principal
Evariste Systems LLC
235 E Ponce de Leon Ave
Suite 106
Decatur, GA 30030
United States
Tel: +1-678-954-0670
Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
11:03 a.m.
Where are the log messages? They are important too.
Daniel
On 8/28/13 10:00 AM, Alex Balashov wrote:
On 08/28/2013 03:55 AM, Daniel-Constantin Mierla
wrote:
--
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio Advanced Trainings - Berlin, Oct 21-24; Miami, Nov 11-13, 2013
- more details about Kamailio trainings at http://www.asipto.com -
As expected, a buffer overflow somewhere.
Look in logs for a message like:
BUG: qm_*: prev. fragm. tail overwritten ...
and give also the output of 'bt full'.
Here's the 'bt full' from the core dump whose backtrace I last pasted
(the one that crashes in free_to()) and to which the head/tail
overwritten message corresponds:
http://pastebin.com/gk8cR26m
-- Alex
11:04 a.m.
On 08/28/2013 04:03 AM, Daniel-Constantin Mierla wrote:
Where are the log messages? They are important too.
The only log message I got from Kamailio itself was:
Aug 28 03:42:09 gw1 /usr/local/sbin/kamailio[7913]: : <core>
[mem/q_malloc.c:159]: qm_debug_frag(): BUG: qm_*: prev. fragm. tail
overwritten(3630643536313a64, 2d303634622d3965
[0x7f99b713d008:0x7f99b713d038]!
--
Alex Balashov - Principal
Evariste Systems LLC
235 E Ponce de Leon Ave
Suite 106
Decatur, GA 30030
United States
Tel: +1-678-954-0670
Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
12:26 p.m.
Can you set memdbg and memlog lower than debug and reproduce the case
again? That results in logging all memory operations, as I need to know
what part of code allocated previous fragment, because it does a
overflow write, going over the head of next fragment, thus corrupting it
structure.
All logs from start to stop are required in this case, so it can be
quite big file. You can email directly to me or provide some temporary
access to troubleshoot the system (if that is a more convenient option).
Cheers,
Daniel
On 8/28/13 10:04 AM, Alex Balashov wrote:
On 08/28/2013 04:03 AM, Daniel-Constantin Mierla
wrote:
--
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio Advanced Trainings - Berlin, Oct 21-24; Miami, Nov 11-13, 2013
- more details about Kamailio trainings at http://www.asipto.com -
Where are the log messages? They are important
too.
The only log message I got from Kamailio itself was:
Aug 28 03:42:09 gw1 /usr/local/sbin/kamailio[7913]: : <core>
[mem/q_malloc.c:159]: qm_debug_frag(): BUG: qm_*: prev. fragm. tail
overwritten(3630643536313a64, 2d303634622d3965
[0x7f99b713d008:0x7f99b713d038]!
12:45 p.m.
Daniel,
On 08/28/2013 05:26 AM, Daniel-Constantin Mierla wrote:
Can you set memdbg and memlog lower than debug and
reproduce the case
again? That results in logging all memory operations, as I need to know
what part of code allocated previous fragment, because it does a
overflow write, going over the head of next fragment, thus corrupting it
structure.
All logs from start to stop are required in this case, so it can be
quite big file. You can email directly to me or provide some temporary
access to troubleshoot the system (if that is a more convenient option).
In the instances I provided you, I had MEMDBG set to 1, and debug set to
2. Should I set to debug level 4, or is 3 sufficient?
--
Alex Balashov - Principal
Evariste Systems LLC
235 E Ponce de Leon Ave
Suite 106
Decatur, GA 30030
United States
Tel: +1-678-954-0670
Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
12:52 p.m.
Might be enough, you can send me the log and if I need more I'll ask
afterwards.
Daniel
On 8/28/13 11:45 AM, Alex Balashov wrote:
Daniel,
On 08/28/2013 05:26 AM, Daniel-Constantin Mierla wrote:
--
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio Advanced Trainings - Berlin, Oct 21-24; Miami, Nov 11-13, 2013
- more details about Kamailio trainings at http://www.asipto.com -
Can you set memdbg and memlog lower than debug
and reproduce the case
again? That results in logging all memory operations, as I need to know
what part of code allocated previous fragment, because it does a
overflow write, going over the head of next fragment, thus corrupting it
structure.
All logs from start to stop are required in this case, so it can be
quite big file. You can email directly to me or provide some temporary
access to troubleshoot the system (if that is a more convenient option).
In the instances I provided you, I had MEMDBG set to 1, and debug set
to 2. Should I set to debug level 4, or is 3 sufficient?
2 Sep
2 Sep
11:18 a.m.
Daniel,
Sorry that I haven't provided these logs yet. I'm working on it. There
are only limited hours during a maintenance window to reproduce the
problem freely.
One thing I can say is that the problem is definitely tied to the 480
Temporarily Unavailable sent from the PBX somehow. If I repoint that
DID to my own Asterisk 1.6.x PBX and send some other feedback, OR send a
480 (like Do Not Disturb from a handset), the crash does not present.
--
Alex Balashov - Principal
Evariste Systems LLC
235 E Ponce de Leon Ave
Suite 106
Decatur, GA 30030
United States
Tel: +1-678-954-0670
Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
5 Sep
5 Sep
1:25 p.m.
I've managed to reproduce this scenario in a more general case. Even
when I disable my "problematic" route sequence, a 404 Not Found response
from this same PBX causes Kamailio to crash:
(gdb) frame 2
#2 0x000000000049e39d in receive_msg (
buf=0x9065c0 "SIP/2.0 404 Not Found\r\nVia: SIP/2.0/UDP
55.177.31.199;branch=z9hG4bK022f.7350a5c7.0\r\nVia: SIP/2.0/UDP
68.68.120.41:5060;branch=z9hG4bK0cBc7d5138cbe6ccf3f\r\nRecord-Route:
<sip:55.177.31.199;lr=on;ftag=gK0c0e4941;vsf=", 'A' <repeats 38
times>,
"--;dlgcor=fae.b321>\r\nFrom:
<sip:16784841111@68.68.120.41>;tag=gK0c0e4941\r\nTo:
<sip:12066513489@55.177.31.199>;tag=6011e34882\r\nCall-ID:
1963749434_98793621(a)68.68.120.41\r\nCSeq: 4418 INVITE\r\nContact:
<sip:5282797646@195.105.225.111:5060;transport=udp>\r\nSupported:
100rel, replaces, norefersub\r\nAllow-Events: refer\r\nAllow: INVITE,
ACK, CANCEL, BYE, REFER, PRACK, INFO, UPDATE\r\nAccept:
application/sdp\r\nUser-Agent: snomONE/4.5.1.1107 Zeta
Perseids\r\nContent-Length: 0\r\n\r\n", len=717, rcv_info=0x7fff96469750)
at receive.c:296
296 free_sip_msg(msg);
This time, it's not in dealing with the To bits, but freeing the SIP
message in general:
(gdb) where
#0 0x0000000000435908 in free_lump_list (l=0x7f4f81626730) at
data_lump.c:510
#1 0x0000000000542d6a in free_sip_msg (msg=0x7f4f8180e970)
at parser/msg_parser.c:731
#2 0x000000000049e39d in receive_msg (
buf=0x9065c0 "SIP/2.0 404 Not Found\r\nVia: SIP/2.0/UDP
55.177.31.199;branch=z9hG4bK022f.7350a5c7.0\r\nVia: SIP/2.0/UDP
68.68.120.41:5060;branch=z9hG4bK0cBc7d5138cbe6ccf3f\r\nRecord-Route:
<sip:55.177.31.199;lr=on;ftag=gK0c0e4941;vsf=", 'A' <repeats 38
times>,
"--;dlgcor=fae.b321>\r\nFrom:
<sip:16784841111@68.68.120.41>;tag=gK0c0e4941\r\nTo:
<sip:12066513489@55.177.31.199>;tag=6011e34882\r\nCall-ID:
1963749434_98793621(a)68.68.120.41\r\nCSeq: 4418 INVITE\r\nContact:
<sip:5282797646@195.105.225.111:5060;transport=udp>\r\nSupported:
100rel, replaces, norefersub\r\nAllow-Events: refer\r\nAllow: INVITE,
ACK, CANCEL, BYE, REFER, PRACK, INFO, UPDATE\r\nAccept:
application/sdp\r\nUser-Agent: snomONE/4.5.1.1107 Zeta
Perseids\r\nContent-Length: 0\r\n\r\n", len=717, rcv_info=0x7fff96469750)
at receive.c:296
#3 0x000000000052ffa1 in udp_rcv_loop () at udp_server.c:557
#4 0x0000000000467de2 in main_loop () at main.c:1638
#5 0x000000000046ad8b in main (argc=13, argv=0x7fff96469a88) at main.c:2566
That leads me to believe that something in these replies from the PBX in
general is causing memory corruption.
--
Alex Balashov - Principal
Evariste Systems LLC
235 E Ponce de Leon Ave
Suite 106
Decatur, GA 30030
United States
Tel: +1-678-954-0670
Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
1:27 p.m.
But, sometimes I get this crash (in the same scenario as below), too:
(gdb) where
#0 0x000000000055e602 in free_to_params (tb=0x7f95ab472950)
at parser/parse_to.c:827
#1 0x000000000055e658 in free_to (tb=0x7f95ab472950) at
parser/parse_to.c:838
#2 0x000000000053e2a9 in clean_hdr_field (hf=0x7f95ab4722a0)
at parser/hf.c:113
#3 0x000000000053e51d in free_hdr_field_lst (hf=0x7f95ab46f1c0)
at parser/hf.c:223
#4 0x0000000000542d04 in free_sip_msg (msg=0x7f95ab471970)
at parser/msg_parser.c:729
#5 0x000000000049e39d in receive_msg (
buf=0x9065c0 "SIP/2.0 404 Not Found\r\nVia: SIP/2.0/UDP
55.177.31.199;branch=z9hG4bKa744.4c8811f1.0\r\nVia: SIP/2.0/UDP
68.68.120.41:5060;branch=z9hG4bK02B15f46caff804796d\r\nRecord-Route:
<sip:55.177.31.199;lr=on;ftag=g"..., len=715,
rcv_info=0x7fff05e5dbc0) at receive.c:296
#6 0x000000000052ffa1 in udp_rcv_loop () at udp_server.c:557
#7 0x0000000000467de2 in main_loop () at main.c:1638
#8 0x000000000046ad8b in main (argc=13, argv=0x7fff05e5def8) at main.c:2566
-- Alex
On 09/05/2013 06:25 AM, Alex Balashov wrote:
I've managed to reproduce this scenario in a more
general case. Even
when I disable my "problematic" route sequence, a 404 Not Found response
from this same PBX causes Kamailio to crash:
(gdb) frame 2
#2 0x000000000049e39d in receive_msg (
buf=0x9065c0 "SIP/2.0 404 Not Found\r\nVia: SIP/2.0/UDP
55.177.31.199;branch=z9hG4bK022f.7350a5c7.0\r\nVia: SIP/2.0/UDP
68.68.120.41:5060;branch=z9hG4bK0cBc7d5138cbe6ccf3f\r\nRecord-Route:
<sip:55.177.31.199;lr=on;ftag=gK0c0e4941;vsf=", 'A' <repeats 38
times>,
"--;dlgcor=fae.b321>\r\nFrom:
<sip:16784841111@68.68.120.41>;tag=gK0c0e4941\r\nTo:
<sip:12066513489@55.177.31.199>;tag=6011e34882\r\nCall-ID:
1963749434_98793621(a)68.68.120.41\r\nCSeq: 4418 INVITE\r\nContact:
<sip:5282797646@195.105.225.111:5060;transport=udp>\r\nSupported:
100rel, replaces, norefersub\r\nAllow-Events: refer\r\nAllow: INVITE,
ACK, CANCEL, BYE, REFER, PRACK, INFO, UPDATE\r\nAccept:
application/sdp\r\nUser-Agent: snomONE/4.5.1.1107 Zeta
Perseids\r\nContent-Length: 0\r\n\r\n", len=717, rcv_info=0x7fff96469750)
at receive.c:296
296 free_sip_msg(msg);
This time, it's not in dealing with the To bits, but freeing the SIP
message in general:
(gdb) where
#0 0x0000000000435908 in free_lump_list (l=0x7f4f81626730) at
data_lump.c:510
#1 0x0000000000542d6a in free_sip_msg (msg=0x7f4f8180e970)
at parser/msg_parser.c:731
#2 0x000000000049e39d in receive_msg (
buf=0x9065c0 "SIP/2.0 404 Not Found\r\nVia: SIP/2.0/UDP
55.177.31.199;branch=z9hG4bK022f.7350a5c7.0\r\nVia: SIP/2.0/UDP
68.68.120.41:5060;branch=z9hG4bK0cBc7d5138cbe6ccf3f\r\nRecord-Route:
<sip:55.177.31.199;lr=on;ftag=gK0c0e4941;vsf=", 'A' <repeats 38
times>,
"--;dlgcor=fae.b321>\r\nFrom:
<sip:16784841111@68.68.120.41>;tag=gK0c0e4941\r\nTo:
<sip:12066513489@55.177.31.199>;tag=6011e34882\r\nCall-ID:
1963749434_98793621(a)68.68.120.41\r\nCSeq: 4418 INVITE\r\nContact:
<sip:5282797646@195.105.225.111:5060;transport=udp>\r\nSupported:
100rel, replaces, norefersub\r\nAllow-Events: refer\r\nAllow: INVITE,
ACK, CANCEL, BYE, REFER, PRACK, INFO, UPDATE\r\nAccept:
application/sdp\r\nUser-Agent: snomONE/4.5.1.1107 Zeta
Perseids\r\nContent-Length: 0\r\n\r\n", len=717, rcv_info=0x7fff96469750)
at receive.c:296
#3 0x000000000052ffa1 in udp_rcv_loop () at udp_server.c:557
#4 0x0000000000467de2 in main_loop () at main.c:1638
#5 0x000000000046ad8b in main (argc=13, argv=0x7fff96469a88) at
main.c:2566
That leads me to believe that something in these replies from the PBX in
general is causing memory corruption.
--
Alex Balashov - Principal
Evariste Systems LLC
235 E Ponce de Leon Ave
Suite 106
Decatur, GA 30030
United States
Tel: +1-678-954-0670
Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
1:36 p.m.
On 09/05/2013 06:27 AM, Alex Balashov wrote:
But, sometimes I get this crash (in the same scenario
as below), too:
(gdb) where
#0 0x000000000055e602 in free_to_params (tb=0x7f95ab472950)
at parser/parse_to.c:827
#1 0x000000000055e658 in free_to (tb=0x7f95ab472950) at
parser/parse_to.c:838
#2 0x000000000053e2a9 in clean_hdr_field (hf=0x7f95ab4722a0)
at parser/hf.c:113
#3 0x000000000053e51d in free_hdr_field_lst (hf=0x7f95ab46f1c0)
at parser/hf.c:223
#4 0x0000000000542d04 in free_sip_msg (msg=0x7f95ab471970)
at parser/msg_parser.c:729
#5 0x000000000049e39d in receive_msg (
buf=0x9065c0 "SIP/2.0 404 Not Found\r\nVia: SIP/2.0/UDP
55.177.31.199;branch=z9hG4bKa744.4c8811f1.0\r\nVia: SIP/2.0/UDP
68.68.120.41:5060;branch=z9hG4bK02B15f46caff804796d\r\nRecord-Route:
<sip:55.177.31.199;lr=on;ftag=g"..., len=715,
rcv_info=0x7fff05e5dbc0) at receive.c:296
#6 0x000000000052ffa1 in udp_rcv_loop () at udp_server.c:557
#7 0x0000000000467de2 in main_loop () at main.c:1638
#8 0x000000000046ad8b in main (argc=13, argv=0x7fff05e5def8) at
main.c:2566
This is the crash I get ~80-90% of the time, though. This leads me to
believe that the To params probably have more to do with it than
anything else, unless the structure of the memory corruption is such
that it just happens to explode there.
--
Alex Balashov - Principal
Evariste Systems LLC
235 E Ponce de Leon Ave
Suite 106
Decatur, GA 30030
United States
Tel: +1-678-954-0670
Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
2 p.m.
Don't forget that what I actually asked are the log messages with memory
operations. It was an indication of buffer overflow.
Cheers,
Daniel
On 9/5/13 12:36 PM, Alex Balashov wrote:
On 09/05/2013 06:27 AM, Alex Balashov wrote:
--
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio Advanced Trainings - Berlin, Oct 21-24; Miami, Nov 11-13, 2013
- more details about Kamailio trainings at http://www.asipto.com -
But, sometimes I get this crash (in the same
scenario as below), too:
(gdb) where
#0 0x000000000055e602 in free_to_params (tb=0x7f95ab472950)
at parser/parse_to.c:827
#1 0x000000000055e658 in free_to (tb=0x7f95ab472950) at
parser/parse_to.c:838
#2 0x000000000053e2a9 in clean_hdr_field (hf=0x7f95ab4722a0)
at parser/hf.c:113
#3 0x000000000053e51d in free_hdr_field_lst (hf=0x7f95ab46f1c0)
at parser/hf.c:223
#4 0x0000000000542d04 in free_sip_msg (msg=0x7f95ab471970)
at parser/msg_parser.c:729
#5 0x000000000049e39d in receive_msg (
buf=0x9065c0 "SIP/2.0 404 Not Found\r\nVia: SIP/2.0/UDP
55.177.31.199;branch=z9hG4bKa744.4c8811f1.0\r\nVia: SIP/2.0/UDP
68.68.120.41:5060;branch=z9hG4bK02B15f46caff804796d\r\nRecord-Route:
<sip:55.177.31.199;lr=on;ftag=g"..., len=715,
rcv_info=0x7fff05e5dbc0) at receive.c:296
#6 0x000000000052ffa1 in udp_rcv_loop () at udp_server.c:557
#7 0x0000000000467de2 in main_loop () at main.c:1638
#8 0x000000000046ad8b in main (argc=13, argv=0x7fff05e5def8) at
main.c:2566
This is the crash I get ~80-90% of the time, though. This leads me to
believe that the To params probably have more to do with it than
anything else, unless the structure of the memory corruption is such
that it just happens to explode there.
2:14 p.m.
On 09/05/2013 07:00 AM, Daniel-Constantin Mierla wrote:
Don't forget that what I actually asked are the
log messages with memory
operations. It was an indication of buffer overflow.
Yeah, I know. They're just hard to get in this situation. I will do my
best to get them to you ASAP.
--
Alex Balashov - Principal
Evariste Systems LLC
235 E Ponce de Leon Ave
Suite 106
Decatur, GA 30030
United States
Tel: +1-678-954-0670
Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
6 Sep
6 Sep
11:31 a.m.
Hello Daniel,
I sent you the ultra-high-verbosity memory log privately, since it's 95
MB (uncompressed). I also sent you the backtrace and the full
backtrace, but here they are again for edification:
sasha@tambourine:~$ cat x2 | sed 's/208.94.159.10/192.13.219.87/g' | sed
's/6789540671/6784841111/g' | sed 's/192.168.47.72/175.154.21.89/g' |
sed 's/67.231.4.102/12.131.2.144/g' | sed
's/65.254.44.194/55.177.31.199/g' | sed 's/9189211710/6504578199/g' |
sed 's/184.178.234.121/195.105.225.111/g'
(gdb) where
#0 0x0000003dbae328a5 in raise () from /lib64/libc.so.6
#1 0x0000003dbae34085 in abort () from /lib64/libc.so.6
#2 0x000000000053c112 in qm_debug_frag (qm=0x7fa2e71d2010,
f=0x7fa2e7484060)
at mem/q_malloc.c:142
#3 0x000000000053de76 in qm_free (qm=0x7fa2e71d2010, p=0x7fa2e7484090,
file=0x6165b1 "<core>: parser/parse_to.c", func=0x617e48
"free_to_params",
line=828) at mem/q_malloc.c:462
#4 0x0000000000565799 in free_to_params (tb=0x7fa2e7456b70)
at parser/parse_to.c:828
#5 0x00000000005657d7 in free_to (tb=0x7fa2e7456b70) at
parser/parse_to.c:838
#6 0x0000000000544fef in clean_hdr_field (hf=0x7fa2e723c030)
at parser/hf.c:169
#7 0x000000000054515a in free_hdr_field_lst (hf=0x7fa2e723bbe0)
at parser/hf.c:223
#8 0x00000000005499e5 in free_sip_msg (msg=0x7fa2e74824a8)
at parser/msg_parser.c:729
#9 0x000000000049f89d in receive_msg (
buf=0x910e20 "SIP/2.0 404 Not Found\r\nVia: SIP/2.0/UDP
55.177.31.199;branch=z9hG4bK11f7.06fc4f95.0\r\nVia: SIP/2.0/UDP
68.68.120.41:5060;branch=z9hG4bK04B41bd5b77895524b3\r\nRecord-Route:
<sip:55.177.31.199;lr=on;ftag=g"..., len=716,
rcv_info=0x7fffd0c14960) at receive.c:296
#10 0x0000000000532665 in udp_rcv_loop () at udp_server.c:557
#11 0x00000000004688a1 in main_loop () at main.c:1638
#12 0x000000000046b84a in main (argc=13, argv=0x7fffd0c14c98) at main.c:2566
#0 0x0000003dbae328a5 in raise () from /lib64/libc.so.6
No symbol table info available.
#1 0x0000003dbae34085 in abort () from /lib64/libc.so.6
No symbol table info available.
#2 0x000000000053c112 in qm_debug_frag (qm=0x7fa2e71d2010,
f=0x7fa2e7484060)
at mem/q_malloc.c:142
__FUNCTION__ = "qm_debug_frag"
#3 0x000000000053de76 in qm_free (qm=0x7fa2e71d2010, p=0x7fa2e7484090,
file=0x6165b1 "<core>: parser/parse_to.c", func=0x617e48
"free_to_params",
line=828) at mem/q_malloc.c:462
f = 0x7fa2e7484060
size = 2825200
next = 0x7fa2e723ac58
prev = 0x157
__FUNCTION__ = "qm_free"
#4 0x0000000000565799 in free_to_params (tb=0x7fa2e7456b70)
at parser/parse_to.c:828
tp = 0x7fa2e7484090
foo = 0x0
__FUNCTION__ = "free_to_params"
#5 0x00000000005657d7 in free_to (tb=0x7fa2e7456b70) at
parser/parse_to.c:838
__FUNCTION__ = "free_to"
#6 0x0000000000544fef in clean_hdr_field (hf=0x7fa2e723c030)
at parser/hf.c:169
h_parsed = 0x7fa2e723c060
__FUNCTION__ = "clean_hdr_field"
#7 0x000000000054515a in free_hdr_field_lst (hf=0x7fa2e723bbe0)
at parser/hf.c:223
foo = 0x7fa2e723c030
__FUNCTION__ = "free_hdr_field_lst"
#8 0x00000000005499e5 in free_sip_msg (msg=0x7fa2e74824a8)
at parser/msg_parser.c:729
__FUNCTION__ = "free_sip_msg"
#9 0x000000000049f89d in receive_msg (
buf=0x910e20 "SIP/2.0 404 Not Found\r\nVia: SIP/2.0/UDP
55.177.31.199;branch=z9hG4bK11f7.06fc4f95.0\r\nVia: SIP/2.0/UDP
68.68.120.41:5060;branch=z9hG4bK04B41bd5b77895524b3\r\nRecord-Route:
<sip:55.177.31.199;lr=on;ftag=gK045cb2b5;vsf=", 'A' <repeats 38
times>,
"--;dlgcor=48a.e5>\r\nFrom:
<sip:16784841111@68.68.120.41>;tag=gK045cb2b5\r\nTo:
<sip:12066513489@55.177.31.199>;tag=8200ff18e3\r\nCall-ID:
184818744_124682822(a)68.68.120.41\r\nCSeq: 25781 INVITE\r\nContact:
<sip:528---Type <return> to continue, or q <return> to quit---
2797646@195.105.225.111:5060;transport=udp>\r\nSupported: 100rel,
replaces, norefersub\r\nAllow-Events: refer\r\nAllow: INVITE, ACK,
CANCEL, BYE, REFER, PRACK, INFO, UPDATE\r\nAccept:
application/sdp\r\nUser-Agent: snomONE/4.5.1.1107 Zeta
Perseids\r\nContent-Length: 0\r\n\r\n", len=716, rcv_info=0x7fffd0c14960)
at receive.c:296
msg = 0x7fa2e74824a8
ctx = {rec_lev = 8793288, run_flags = 0, last_retcode = 0,
jmp_env = {{
__jmpbuf = {0, 0, 0, 265124110288, 1, 0, 140337638875928,
1},
__mask_was_saved = -508184336, __saved_mask = {__val = {
140337641517152, 3502328080, 1024, 7797295296,
140333253245168, 140736695716032, 5433321, 0,
140333253245168, 44055, 140333253245168,
140736695716296,
8093911720, 140736695716112, 5433449, 7}}}}}
ret = 32674
inb = {
s = 0x910e20 "SIP/2.0 404 Not Found\r\nVia: SIP/2.0/UDP
55.177.31.199;branch=z9hG4bK11f7.06fc4f95.0\r\nVia: SIP/2.0/UDP
68.68.120.41:5060;branch=z9hG4bK04B41bd5b77895524b3\r\nRecord-Route:
<sip:55.177.31.199;lr=on;ftag=gK045cb2b5;vsf=", 'A' <repeats 38
times>,
"--;dlgcor=48a.e5>\r\nFrom:
<sip:16784841111@68.68.120.41>;tag=gK045cb2b5\r\nTo:
<sip:12066513489@55.177.31.199>;tag=8200ff18e3\r\nCall-ID:
184818744_124682822(a)68.68.120.41\r\nCSeq: 25781 INVITE\r\nContact:
<sip:5282797646@195.105.225.111:5060;transport=udp>\r\nSupported:
100rel, replaces, norefersub\r\nAllow-Events: refer\r\nAllow: INVITE,
ACK, CANCEL, BYE, REFER, PRACK, INFO, UPDATE\r\nAccept:
application/sdp\r\nUser-Agent: snomONE/4.5.1.1107 Zeta
Perseids\r\nContent-Length: 0\r\n\r\n", len = 716}
__FUNCTION__ = "receive_msg"
#10 0x0000000000532665 in udp_rcv_loop () at udp_server.c:557
len = 716
buf = "SIP/2.0 404 Not Found\r\nVia: SIP/2.0/UDP
55.177.31.199;branch=z9hG4bK11f7.06fc4f95.0\r\nVia: SIP/2.0/UDP
68.68.120.41:5060;branch=z9hG4bK04B41bd5b77895524b3\r\nRecord-Route:
<sip:55.177.31.199;lr=on;ftag=gK045cb2b5;vsf=", 'A' <repeats 38
times>,
"--;dlgcor=48a.e5>\r\nFrom:
<sip:16784841111@68.68.120.41>;tag=gK045cb2b5\r\nTo:
<sip:12066513489@55.177.31.199>;tag=8200ff18e3\r\nCall-ID:
184818744_124682822(a)68.68.120.41\r\nCSeq: 25781 INVITE\r\nContact:
<sip:5282797646@195.105.225.111:5060;transport=udp>\r\nSupported:
100rel, replaces, norefersub\r\nAllow-Events: refer\r\nAllow: INVITE,
ACK, CANCEL, BYE, REFER, PRACK, INFO, UPDATE\r\nAccept:
application/sdp\r\nUser-Agent: snomONE/4.5.1.1107 Zeta
Perseids\r\nContent-Length: 0\r\n\r\n\000dp\r\n\r\nv=0\r\no=Sonus_UAC
828 24583 IN IP4 68.68.120.41\r\ns=SIP Media Capabilities\r\nc=IN IP4
68.68.120.35\r\nt=0 0\r\nm=audio 28632 RTP/AVP 0 8 101 13\r\na=rtpmap:0
PCMU/8000\r\na=rtpmap:8 PCMA/8000\r\na=rtpmap:101
telephone-event/8000\r\na=fmtp:101 0-15\r\na=rtpmap:13
CN/8000\r\na=sendrecv\r\na=ptime:20\r\na=rtcp:28633\n", '\000' <repeats
64520 times>
tmp = 0x5d0648 "udp receiver child=%d sock=%s:%s"
from = 0x7fa2e7445908
fromlen = 16
ri = {src_ip = {af = 2, len = 4, u = {addrl = {2045424312,
140337641517152}, addr32 = {2045424312, 0, 3880087648,
32674},
addr16 = {45752, 31210, 0, 0, 28768, 59205, 32674, 0},
addr = "\270\262\352y\000\000\000\000`pE\347\242\177\000"}},
dst_ip = {af = 2, len = 4, u = {addrl = {3257728577, 0},
addr32 = {
3257728577, 0, 0, 0}, addr16 = {65089, 49708, 0, 0, 0,
0, 0,
0}, addr = "A\376,\302", '\000' <repeats 11
times>}},
src_port = 5060, dst_port = 5060, proto_reserved1 = 0,
proto_reserved2 = 0, src_su = {s = {sa_family = 2,
sa_data = "\023ĸ\262\352y\000\000\000\000\000\000\000"},
sin = {
sin_family = 2, sin_port = 50195, sin_addr = {
s_addr = 2045424312},
sin_zero = "\000\000\000\000\000\000\000"}, sin6 = {
sin6_family = 2, sin6_port = 50195, sin6_flowinfo =
2045424312,
sin6_addr = {__in6_u = {__u6_addr8 = '\000' <repeats 15
times>,
__u6_addr16 = {0, 0, 0, 0, 0, 0, 0, 0}, __u6_addr32 =
{0, 0,
0, 0}}}, sin6_scope_id = 0}},
bind_address = 0x7fa2e7456ef8, proto = 1 '\001'}
__FUNCTION__ = "udp_rcv_loop"
#11 0x00000000004688a1 in main_loop () at main.c:1638
i = 7
pid = 0
si = 0x7fa2e7456ef8
si_desc = "udp receiver child=7
sock=55.177.31.199:5060\000\177\000\000\200\261D\347\242\177\000\000\026\000\000\000\000\000\000\000\360v]\000\000\000\000\000\207\000\000\000\000\000\000\000pDA\000\000\000\000\000\220L\301\320\377\177",
'\000' <repeats 18 times>"\320,
J\301\320\377\177\000\000d;K\000\000\000\000"
nrprocs = 8
__FUNCTION__ = "main_loop"
#12 0x000000000046b84a in main (argc=13, argv=0x7fffd0c14c98) at main.c:2566
cfg_stream = 0x13b6010
c = -1
r = 0
tmp_len = 0
port = 0
proto = 0
options = 0x5d0a40
":f:cm:M:dVIhEeb:l:L:n:vKrRDTN:W:w:t:u:g:P:G:SQ:O:a:A:"
ret = -1
seed = 3436287552
rfd = 4
debug_save = 0
debug_flag = 0
dont_fork_cnt = 0
n_lst = 0x3dbae0fb88
p = 0x5bb480 "H\211l$\330L\211d$\340H\215-\273s*"
__FUNCTION__ = "main"
Here's the head/tail overwritten message:
Sep 6 04:09:28 gw1 /usr/local/sbin/kamailio[18694]: : <core>
[mem/q_malloc.c:140]: qm_debug_frag(): BUG: qm_*: fragm. 0x7fa2e7484060
(address 0x7fa2e7484090) beginning overwritten(6975753a6e72753c)!
Grepping for the fragment address:
Sep 6 04:09:18 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[mem/q_malloc.c:413]: qm_malloc(): qm_malloc(0x7fa2e71d2010, 168)
returns address 0x7fa2e7484090 frag. 0x7fa2e7484060 (size=320) on 1 -th hit
Sep 6 04:09:18 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[mem/q_malloc.c:472]: qm_free(): qm_free: freeing frag. 0x7fa2e7484060
alloc'ed from sqlops: sql_api.c: sql_do_query(315)
Sep 6 04:09:18 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[mem/q_malloc.c:413]: qm_malloc(): qm_malloc(0x7fa2e71d2010, 320)
returns address 0x7fa2e7484090 frag. 0x7fa2e7484060 (size=320) on 1 -th hit
Sep 6 04:09:18 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[mem/q_malloc.c:472]: qm_free(): qm_free: freeing frag. 0x7fa2e7484060
alloc'ed from <core>: db_row.c: db_allocate_row(114)
Sep 6 04:09:18 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[mem/q_malloc.c:413]: qm_malloc(): qm_malloc(0x7fa2e71d2010, 48) returns
address 0x7fa2e7484090 frag. 0x7fa2e7484060 (size=48) on 1 -th hit
Sep 6 04:09:18 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[mem/q_malloc.c:472]: qm_free(): qm_free: freeing frag. 0x7fa2e7484060
alloc'ed from <core>: db_res.c: db_allocate_rows(179)
Sep 6 04:09:18 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[mem/q_malloc.c:413]: qm_malloc(): qm_malloc(0x7fa2e71d2010, 24) returns
address 0x7fa2e7484090 frag. 0x7fa2e7484060 (size=48) on 1 -th hit
Sep 6 04:09:18 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[mem/q_malloc.c:472]: qm_free(): qm_free: freeing frag. 0x7fa2e7484060
alloc'ed from <core>: db_val.c: db_str2val(122)
Sep 6 04:09:19 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[mem/q_malloc.c:413]: qm_malloc(): qm_malloc(0x7fa2e71d2010, 48) returns
address 0x7fa2e7484090 frag. 0x7fa2e7484060 (size=48) on 1 -th hit
Sep 6 04:09:19 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[mem/q_malloc.c:472]: qm_free(): qm_free: freeing frag. 0x7fa2e7484060
alloc'ed from <core>: parser/msg_parser.c: get_hdr_field(152)
Sep 6 04:09:22 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[mem/q_malloc.c:413]: qm_malloc(): qm_malloc(0x7fa2e71d2010, 48) returns
address 0x7fa2e7484090 frag. 0x7fa2e7484060 (size=48) on 1 -th hit
Sep 6 04:09:22 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[mem/q_malloc.c:472]: qm_free(): qm_free: freeing frag. 0x7fa2e7484060
alloc'ed from <core>: parser/msg_parser.c: get_hdr_field(152)
Sep 6 04:09:24 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[mem/q_malloc.c:413]: qm_malloc(): qm_malloc(0x7fa2e71d2010, 48) returns
address 0x7fa2e7484090 frag. 0x7fa2e7484060 (size=48) on 1 -th hit
Sep 6 04:09:24 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[mem/q_malloc.c:472]: qm_free(): qm_free: freeing frag. 0x7fa2e7484060
alloc'ed from <core>: parser/msg_parser.c: get_hdr_field(152)
Sep 6 04:09:25 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[mem/q_malloc.c:413]: qm_malloc(): qm_malloc(0x7fa2e71d2010, 48) returns
address 0x7fa2e7484090 frag. 0x7fa2e7484060 (size=48) on 1 -th hit
Sep 6 04:09:25 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[mem/q_malloc.c:472]: qm_free(): qm_free: freeing frag. 0x7fa2e7484060
alloc'ed from <core>: parser/msg_parser.c: get_hdr_field(152)
Sep 6 04:09:27 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[mem/q_malloc.c:413]: qm_malloc(): qm_malloc(0x7fa2e71d2010, 48) returns
address 0x7fa2e7484090 frag. 0x7fa2e7484060 (size=48) on 1 -th hit
Sep 6 04:09:27 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[mem/q_malloc.c:472]: qm_free(): qm_free: freeing frag. 0x7fa2e7484060
alloc'ed from <core>: parser/msg_parser.c: get_hdr_field(152)
Sep 6 04:09:28 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[mem/q_malloc.c:413]: qm_malloc(): qm_malloc(0x7fa2e71d2010, 48) returns
address 0x7fa2e7484090 frag. 0x7fa2e7484060 (size=48) on 1 -th hit
Sep 6 04:09:28 gw1 /usr/local/sbin/kamailio[18694]: : <core>
[mem/q_malloc.c:140]: qm_debug_frag(): BUG: qm_*: fragm. 0x7fa2e7484060
(address 0x7fa2e7484090) beginning overwritten(6975753a6e72753c)!
Sep 6 04:09:28 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: qm_status:
6781. N address=0x7fa2e7484090 frag=0x7fa2e7484060 size=48 used=1
And for the address itself:
Sep 6 04:09:18 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[mem/q_malloc.c:413]: qm_malloc(): qm_malloc(0x7fa2e71d2010, 168)
returns address 0x7fa2e7484090 frag. 0x7fa2e7484060 (size=320) on 1 -th hit
Sep 6 04:09:18 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[mem/q_malloc.c:437]: qm_free(): qm_free(0x7fa2e71d2010,
0x7fa2e7484090), called from sqlops: sql_api.c: sql_reset_result(237)
Sep 6 04:09:18 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[mem/q_malloc.c:413]: qm_malloc(): qm_malloc(0x7fa2e71d2010, 320)
returns address 0x7fa2e7484090 frag. 0x7fa2e7484060 (size=320) on 1 -th hit
Sep 6 04:09:18 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[db_row.c:119]: db_allocate_row(): allocate 320 bytes for row values at
0x7fa2e7484090
Sep 6 04:09:18 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[db_row.c:97]: db_free_row(): freeing row values at 0x7fa2e7484090
Sep 6 04:09:18 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[mem/q_malloc.c:437]: qm_free(): qm_free(0x7fa2e71d2010,
0x7fa2e7484090), called from <core>: db_row.c: db_free_row(98)
Sep 6 04:09:18 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[mem/q_malloc.c:413]: qm_malloc(): qm_malloc(0x7fa2e71d2010, 48) returns
address 0x7fa2e7484090 frag. 0x7fa2e7484060 (size=48) on 1 -th hit
Sep 6 04:09:18 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[db_res.c:184]: db_allocate_rows(): allocate 48 bytes for rows at
0x7fa2e7484090
Sep 6 04:09:18 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[db_res.c:62]: db_free_rows(): freeing rows at 0x7fa2e7484090
Sep 6 04:09:18 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[mem/q_malloc.c:437]: qm_free(): qm_free(0x7fa2e71d2010,
0x7fa2e7484090), called from <core>: db_res.c: db_free_rows(63)
Sep 6 04:09:18 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[mem/q_malloc.c:413]: qm_malloc(): qm_malloc(0x7fa2e71d2010, 24) returns
address 0x7fa2e7484090 frag. 0x7fa2e7484060 (size=48) on 1 -th hit
Sep 6 04:09:18 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[db_val.c:127]: db_str2val(): allocate 23 bytes memory for STRING at
0x7fa2e7484090
Sep 6 04:09:18 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[db_row.c:68]: db_free_row(): free VAL_STRING[13]
'uloc-5215a229-4e26-dc1' at 0x7fa2e7484090
Sep 6 04:09:18 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[mem/q_malloc.c:437]: qm_free(): qm_free(0x7fa2e71d2010,
0x7fa2e7484090), called from <core>: db_row.c: db_free_row(69)
Sep 6 04:09:19 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[mem/q_malloc.c:413]: qm_malloc(): qm_malloc(0x7fa2e71d2010, 48) returns
address 0x7fa2e7484090 frag. 0x7fa2e7484060 (size=48) on 1 -th hit
Sep 6 04:09:19 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[mem/q_malloc.c:437]: qm_free(): qm_free(0x7fa2e71d2010,
0x7fa2e7484090), called from <core>: parser/parse_cseq.c: free_cseq(105)
Sep 6 04:09:22 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[mem/q_malloc.c:413]: qm_malloc(): qm_malloc(0x7fa2e71d2010, 48) returns
address 0x7fa2e7484090 frag. 0x7fa2e7484060 (size=48) on 1 -th hit
Sep 6 04:09:22 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[mem/q_malloc.c:437]: qm_free(): qm_free(0x7fa2e71d2010,
0x7fa2e7484090), called from <core>: parser/parse_cseq.c: free_cseq(105)
Sep 6 04:09:24 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[mem/q_malloc.c:413]: qm_malloc(): qm_malloc(0x7fa2e71d2010, 48) returns
address 0x7fa2e7484090 frag. 0x7fa2e7484060 (size=48) on 1 -th hit
Sep 6 04:09:24 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[mem/q_malloc.c:437]: qm_free(): qm_free(0x7fa2e71d2010,
0x7fa2e7484090), called from <core>: parser/parse_cseq.c: free_cseq(105)
Sep 6 04:09:25 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[mem/q_malloc.c:413]: qm_malloc(): qm_malloc(0x7fa2e71d2010, 48) returns
address 0x7fa2e7484090 frag. 0x7fa2e7484060 (size=48) on 1 -th hit
Sep 6 04:09:25 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[mem/q_malloc.c:437]: qm_free(): qm_free(0x7fa2e71d2010,
0x7fa2e7484090), called from <core>: parser/parse_cseq.c: free_cseq(105)
Sep 6 04:09:27 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[mem/q_malloc.c:413]: qm_malloc(): qm_malloc(0x7fa2e71d2010, 48) returns
address 0x7fa2e7484090 frag. 0x7fa2e7484060 (size=48) on 1 -th hit
Sep 6 04:09:27 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[mem/q_malloc.c:437]: qm_free(): qm_free(0x7fa2e71d2010,
0x7fa2e7484090), called from <core>: parser/parse_cseq.c: free_cseq(105)
Sep 6 04:09:28 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[mem/q_malloc.c:413]: qm_malloc(): qm_malloc(0x7fa2e71d2010, 48) returns
address 0x7fa2e7484090 frag. 0x7fa2e7484060 (size=48) on 1 -th hit
Sep 6 04:09:28 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: <core>
[mem/q_malloc.c:437]: qm_free(): qm_free(0x7fa2e71d2010,
0x7fa2e7484090), called from <core>: parser/parse_to.c: free_to_params(828)
Sep 6 04:09:28 gw1 /usr/local/sbin/kamailio[18694]: : <core>
[mem/q_malloc.c:140]: qm_debug_frag(): BUG: qm_*: fragm. 0x7fa2e7484060
(address 0x7fa2e7484090) beginning overwritten(6975753a6e72753c)!
Sep 6 04:09:28 gw1 /usr/local/sbin/kamailio[18694]: DEBUG: qm_status:
6781. N address=0x7fa2e7484090 frag=0x7fa2e7484060 size=48 used=1
-- Alex
--
Alex Balashov - Principal
Evariste Systems LLC
235 E Ponce de Leon Ave
Suite 106
Decatur, GA 30030
United States
Tel: +1-678-954-0670
Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
11:52 a.m.
Just for fun, I caused another crash, and this time got this backtrace:
#0 0x000000000054274d in qm_status (qm=0x7f7a3a24a010) at
mem/q_malloc.c:775
#1 0x000000000053c10d in qm_debug_frag (qm=0x7f7a3a24a010,
f=0x7f7a3a4fc918)
at mem/q_malloc.c:141
#2 0x000000000053d32a in qm_malloc (qm=0x7f7a3a24a010, size=952,
file=0x5e5434 "<core>: rvalue.c", func=0x5e9fb4
"rval_new_empty",
line=236)
at mem/q_malloc.c:384
#3 0x00000000004bddee in rval_new_empty (extra_size=102) at rvalue.c:236
#4 0x00000000004bde65 in rval_new_str (s=0x7fffcb1c9110, extra_size=80)
at rvalue.c:260
#5 0x00000000004c057d in rval_convert (h=0x7fffcb1caf50,
msg=0x7f7a39799920,
type=RV_STR, v=0x7f7a3a3fd3d0, c=0x7fffcb1c92d0) at rvalue.c:1321
#6 0x00000000004c1a31 in rval_str_lop2 (h=0x7fffcb1caf50,
msg=0x7f7a39799920,
res=0x7fffcb1c9778, op=RVE_EQ_OP, l=0x7f7a3a3fd3d0, c1=0x7fffcb1c92d0,
r=0x7f7a3a3fdbd0, c2=0x0) at rvalue.c:1752
#7 0x00000000004c2667 in rval_expr_eval_int (h=0x7fffcb1caf50,
msg=0x7f7a39799920, res=0x7fffcb1c9778, rve=0x7f7a3a3fe2e8) at
rvalue.c:2058
#8 0x0000000000418dca in do_action (h=0x7fffcb1caf50, a=0x7f7a3a4001e8,
msg=0x7f7a39799920) at action.c:1050
#9 0x0000000000421ce7 in run_actions (h=0x7fffcb1caf50, a=0x7f7a3a3fd1a8,
msg=0x7f7a39799920) at action.c:1573
#10 0x00000000004206af in do_action (h=0x7fffcb1caf50, a=0x7f7a3a4006c0,
msg=0x7f7a39799920) at action.c:1374
#11 0x0000000000421ce7 in run_actions (h=0x7fffcb1caf50, a=0x7f7a3a3f3958,
msg=0x7f7a39799920) at action.c:1573
#12 0x0000000000419012 in do_action (h=0x7fffcb1caf50, a=0x7f7a3a405f80,
msg=0x7f7a39799920) at action.c:1065
#13 0x0000000000421ce7 in run_actions (h=0x7fffcb1caf50, a=0x7f7a3a405f80,
msg=0x7f7a39799920) at action.c:1573
#14 0x000000000041906b in do_action (h=0x7fffcb1caf50, a=0x7f7a3a4060c0,
msg=0x7f7a39799920) at action.c:1069
#15 0x0000000000421ce7 in run_actions (h=0x7fffcb1caf50, a=0x7f7a3a3da6a8,
msg=0x7f7a39799920) at action.c:1573
#16 0x0000000000416f5a in do_action (h=0x7fffcb1caf50, a=0x7f7a3a4125d0,
msg=0x7f7a39799920) at action.c:690
#17 0x0000000000421ce7 in run_actions (h=0x7fffcb1caf50, a=0x7f7a3a40b828,
msg=0x7f7a39799920) at action.c:1573
#18 0x0000000000422471 in run_top_route (a=0x7f7a3a40b828,
msg=0x7f7a39799920,
c=0x0) at action.c:1658
#19 0x00007f7a3954ce90 in run_failure_handlers (t=0x7f7935779ad8,
rpl=0x7f7a3a4fa4a8, code=404, extra_flags=64) at t_reply.c:1024
#20 0x00007f7a3954e00b in t_should_relay_response (Trans=0x7f7935779ad8,
new_code=404, branch=0, should_store=0x7fffcb1cb230,
should_relay=0x7fffcb1cb234, cancel_data=0x7fffcb1cb440,
reply=0x7f7a3a4fa4a8)
at t_reply.c:1300
#21 0x00007f7a3954fb98 in relay_reply (t=0x7f7935779ad8,
p_msg=0x7f7a3a4fa4a8,
branch=0, msg_status=404, cancel_data=0x7fffcb1cb440, do_put_on_wait=1)
at t_reply.c:1703
#22 0x00007f7a39552cce in reply_received (p_msg=0x7f7a3a4fa4a8) at
t_reply.c:2370
#23 0x00000000004591b1 in do_forward_reply (msg=0x7f7a3a4fa4a8, mode=0)
at forward.c:799
#24 0x0000000000459a40 in forward_reply (msg=0x7f7a3a4fa4a8) at
forward.c:882
#25 0x000000000049f776 in receive_msg (
buf=0x910e20 "SIP/2.0 404 Not Found\r\nVia: SIP/2.0/UDP
55.177.31.199;branch=z9hG4bK80fd.c731a837.0\r\nVia: SIP/2.0/UDP
68.68.120.41:5060;branch=z9hG4bK0cB61aa236182c0cf4d\r\nRecord-Route:
<sip:55.177.31.199;lr=on;ftag=gK0c275042;vsf=", 'A' <repeats 38
times>,
"--;dlgcor=a9.aca2>\r\nFrom:
<sip:16784841111@68.68.120.41>;tag=gK0c275042\r\nTo:
<sip:12066513489@55.177.31.199>;tag=ed7d54e69a\r\nCall-ID:
185377618_113020350(a)68.68.120.41\r\nCSeq: 15495 INVITE\r\nContact:
<sip:5282797646@195.105.225.111:5060;transport=udp>\r\nSupported:
100rel, replaces, norefersub\r\nAllow-Events: refer\r\nAllow: INVITE,
ACK, CANCEL, BYE, REFER, PRACK, INFO, UPDATE\r\nAccept:
application/sdp\r\nUser-Agent: snomONE/4.5.1.1107 Zeta
Perseids\r\nContent-Length: 0\r\n\r\n", len=717,
rcv_info=0x7fffcb1cb7c0) at receive.c:272
#26 0x0000000000532665 in udp_rcv_loop () at udp_server.c:557
#27 0x00000000004688a1 in main_loop () at main.c:1638
#28 0x000000000046b84a in main (argc=13, argv=0x7fffcb1cbaf8) at main.c:2566
This time, the overwritten fragment was:
Sep 6 04:47:54 gw1 /usr/local/sbin/kamailio[19629]: : <core>
[mem/q_malloc.c:140]: qm_debug_frag(): BUG: qm_*: fragm. 0x7f7a3a4fc918
(address 0x7f7a3a4fc948) beginning overwritten(3e653834323335)!
This time, the pedigree of the fragment address was much shorter:
Sep 6 04:47:50 gw1 /usr/local/sbin/kamailio[19631]: DEBUG: <core>
[mem/q_malloc.c:413]: qm_malloc(): qm_malloc(0x7f7a3a24a010, 56) returns
address 0x7f7a3a4fc918 frag. 0x7f7a3a4fc8e8 (size=96) on 1 -th hit
Sep 6 04:47:50 gw1 /usr/local/sbin/kamailio[19631]: DEBUG: <core>
[mem/q_malloc.c:437]: qm_free(): qm_free(0x7f7a3a24a010,
0x7f7a3a4fc918), called from <core>: data_lump.c: free_duped_lump_list(626)
Sep 6 04:47:54 gw1 /usr/local/sbin/kamailio[19627]: DEBUG: <core>
[mem/q_malloc.c:413]: qm_malloc(): qm_malloc(0x7f7a3a24a010, 48) returns
address 0x7f7a3a4fc918 frag. 0x7f7a3a4fc8e8 (size=48) on 1 -th hit
Sep 6 04:47:54 gw1 /usr/local/sbin/kamailio[19627]: DEBUG: <core>
[db_res.c:184]: db_allocate_rows(): allocate 48 bytes for rows at
0x7f7a3a4fc918
Sep 6 04:47:54 gw1 /usr/local/sbin/kamailio[19627]: DEBUG: <core>
[db_res.c:62]: db_free_rows(): freeing rows at 0x7f7a3a4fc918
Sep 6 04:47:54 gw1 /usr/local/sbin/kamailio[19627]: DEBUG: <core>
[mem/q_malloc.c:437]: qm_free(): qm_free(0x7f7a3a24a010,
0x7f7a3a4fc918), called from <core>: db_res.c: db_free_rows(63)
Sep 6 04:47:54 gw1 /usr/local/sbin/kamailio[19627]: DEBUG: <core>
[mem/q_malloc.c:413]: qm_malloc(): qm_malloc(0x7f7a3a24a010, 48) returns
address 0x7f7a3a4fc918 frag. 0x7f7a3a4fc8e8 (size=48) on 1 -th hit
Sep 6 04:47:54 gw1 /usr/local/sbin/kamailio[19627]: DEBUG: <core>
[db_val.c:127]: db_str2val(): allocate 48 bytes memory for STRING at
0x7f7a3a4fc918
Sep 6 04:47:54 gw1 /usr/local/sbin/kamailio[19627]: DEBUG: <core>
[db_row.c:68]: db_free_row(): free VAL_STRING[14]
'<urn:uuid:d3bcbc0b-7fde-4db5-9871-79efb9b07aab>' at 0x7f7a3a4fc918
Sep 6 04:47:54 gw1 /usr/local/sbin/kamailio[19627]: DEBUG: <core>
[mem/q_malloc.c:437]: qm_free(): qm_free(0x7f7a3a24a010,
0x7f7a3a4fc918), called from <core>: db_row.c: db_free_row(69)
Sep 6 04:47:54 gw1 /usr/local/sbin/kamailio[19627]: DEBUG: <core>
[mem/q_malloc.c:413]: qm_malloc(): qm_malloc(0x7f7a3a24a010, 48) returns
address 0x7f7a3a4fc918 frag. 0x7f7a3a4fc8e8 (size=48) on 1 -th hit
Sep 6 04:47:54 gw1 /usr/local/sbin/kamailio[19629]: DEBUG: <core>
[mem/q_malloc.c:413]: qm_malloc(): qm_malloc(0x7f7a3a24a010, 952)
returns address 0x7f7a3a4fc948 frag. 0x7f7a3a4fc918 (size=952) on 1 -th hit
Sep 6 04:47:54 gw1 /usr/local/sbin/kamailio[19629]: DEBUG: <core>
[mem/q_malloc.c:472]: qm_free(): qm_free: freeing frag. 0x7f7a3a4fc918
alloc'ed from <core>: rvalue.c: rval_new_empty(236)
Sep 6 04:47:54 gw1 /usr/local/sbin/kamailio[19629]: : <core>
[mem/q_malloc.c:140]: qm_debug_frag(): BUG: qm_*: fragm. 0x7f7a3a4fc918
(address 0x7f7a3a4fc948) beginning overwritten(3e653834323335)!
Sep 6 04:48:06 gw1 /usr/local/sbin/kamailio[19627]: DEBUG: qm_status:
6792. N address=0x7f7a3a4fc918 frag=0x7f7a3a4fc8e8 size=48 used=1
But the common factor is database involvement beforehand.
Am I right to suppose that this points to a buffer overflow in
db_postgres or libsrdb1 somewhere?
-- Alex
--
Alex Balashov - Principal
Evariste Systems LLC
235 E Ponce de Leon Ave
Suite 106
Decatur, GA 30030
United States
Tel: +1-678-954-0670
Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
10 Sep
10 Sep
10:53 a.m.
Thanks, I'll analyze the logs as I get a chance very soon.
Cheers,
Daniel
On Fri, Sep 6, 2013 at 10:52 AM, Alex Balashov <abalashov(a)evaristesys.com>wrote;wrote:
Just for fun, I caused another crash, and this time
got this backtrace:
#0 0x000000000054274d in qm_status (qm=0x7f7a3a24a010) at
mem/q_malloc.c:775
#1 0x000000000053c10d in qm_debug_frag (qm=0x7f7a3a24a010,
f=0x7f7a3a4fc918)
at mem/q_malloc.c:141
#2 0x000000000053d32a in qm_malloc (qm=0x7f7a3a24a010, size=952,
file=0x5e5434 "<core>: rvalue.c", func=0x5e9fb4
"rval_new_empty",
line=236)
at mem/q_malloc.c:384
#3 0x00000000004bddee in rval_new_empty (extra_size=102) at rvalue.c:236
#4 0x00000000004bde65 in rval_new_str (s=0x7fffcb1c9110, extra_size=80)
at rvalue.c:260
#5 0x00000000004c057d in rval_convert (h=0x7fffcb1caf50,
msg=0x7f7a39799920,
type=RV_STR, v=0x7f7a3a3fd3d0, c=0x7fffcb1c92d0) at rvalue.c:1321
#6 0x00000000004c1a31 in rval_str_lop2 (h=0x7fffcb1caf50,
msg=0x7f7a39799920,
res=0x7fffcb1c9778, op=RVE_EQ_OP, l=0x7f7a3a3fd3d0, c1=0x7fffcb1c92d0,
r=0x7f7a3a3fdbd0, c2=0x0) at rvalue.c:1752
#7 0x00000000004c2667 in rval_expr_eval_int (h=0x7fffcb1caf50,
msg=0x7f7a39799920, res=0x7fffcb1c9778, rve=0x7f7a3a3fe2e8) at
rvalue.c:2058
#8 0x0000000000418dca in do_action (h=0x7fffcb1caf50, a=0x7f7a3a4001e8,
msg=0x7f7a39799920) at action.c:1050
#9 0x0000000000421ce7 in run_actions (h=0x7fffcb1caf50, a=0x7f7a3a3fd1a8,
msg=0x7f7a39799920) at action.c:1573
#10 0x00000000004206af in do_action (h=0x7fffcb1caf50, a=0x7f7a3a4006c0,
msg=0x7f7a39799920) at action.c:1374
#11 0x0000000000421ce7 in run_actions (h=0x7fffcb1caf50, a=0x7f7a3a3f3958,
msg=0x7f7a39799920) at action.c:1573
#12 0x0000000000419012 in do_action (h=0x7fffcb1caf50, a=0x7f7a3a405f80,
msg=0x7f7a39799920) at action.c:1065
#13 0x0000000000421ce7 in run_actions (h=0x7fffcb1caf50, a=0x7f7a3a405f80,
msg=0x7f7a39799920) at action.c:1573
#14 0x000000000041906b in do_action (h=0x7fffcb1caf50, a=0x7f7a3a4060c0,
msg=0x7f7a39799920) at action.c:1069
#15 0x0000000000421ce7 in run_actions (h=0x7fffcb1caf50, a=0x7f7a3a3da6a8,
msg=0x7f7a39799920) at action.c:1573
#16 0x0000000000416f5a in do_action (h=0x7fffcb1caf50, a=0x7f7a3a4125d0,
msg=0x7f7a39799920) at action.c:690
#17 0x0000000000421ce7 in run_actions (h=0x7fffcb1caf50, a=0x7f7a3a40b828,
msg=0x7f7a39799920) at action.c:1573
#18 0x0000000000422471 in run_top_route (a=0x7f7a3a40b828,
msg=0x7f7a39799920,
c=0x0) at action.c:1658
#19 0x00007f7a3954ce90 in run_failure_handlers (t=0x7f7935779ad8,
rpl=0x7f7a3a4fa4a8, code=404, extra_flags=64) at t_reply.c:1024
#20 0x00007f7a3954e00b in t_should_relay_response (Trans=0x7f7935779ad8,
new_code=404, branch=0, should_store=0x7fffcb1cb230,
should_relay=0x7fffcb1cb234, cancel_data=0x7fffcb1cb440,
reply=0x7f7a3a4fa4a8)
at t_reply.c:1300
#21 0x00007f7a3954fb98 in relay_reply (t=0x7f7935779ad8,
p_msg=0x7f7a3a4fa4a8,
branch=0, msg_status=404, cancel_data=0x7fffcb1cb440, do_put_on_wait=1)
at t_reply.c:1703
#22 0x00007f7a39552cce in reply_received (p_msg=0x7f7a3a4fa4a8) at
t_reply.c:2370
#23 0x00000000004591b1 in do_forward_reply (msg=0x7f7a3a4fa4a8, mode=0)
at forward.c:799
#24 0x0000000000459a40 in forward_reply (msg=0x7f7a3a4fa4a8) at
forward.c:882
#25 0x000000000049f776 in receive_msg (
buf=0x910e20 "SIP/2.0 404 Not Found\r\nVia: SIP/2.0/UDP 55.177.31.199
;branch=z9hG4bK80fd.c731a837.**0\r\nVia: SIP/2.0/UDP 68.68.120.41:5060
;branch=**z9hG4bK0cB61aa236182c0cf4d\r\**nRecord-Route: <sip:55.177.31.199
;lr=on;ftag=gK0c275042;**vsf=", 'A' <repeats 38 times>,
"--;dlgcor=a9.aca2>\r\nFrom:
<sip:16784841111@68.68.120.41>**;tag=gK0c275042\r\nTo:
<sip:12066513489@55.177.31.199**>;tag=ed7d54e69a\r\nCall-ID:
185377618_113020350(a)68.68.120.**41 <185377618_113020350(a)68.68.120.41>\r\nCSeq\nCSeq:
15495 INVITE\r\nContact: <sip:5282797646@195.105.225.**
111:5060;transport=udp>\r\**nSupported: 100rel, replaces,
norefersub\r\nAllow-Events: refer\r\nAllow: INVITE, ACK, CANCEL, BYE,
REFER, PRACK, INFO, UPDATE\r\nAccept: application/sdp\r\nUser-Agent:
snomONE/4.5.1.1107 Zeta Perseids\r\nContent-Length: 0\r\n\r\n", len=717,
rcv_info=0x7fffcb1cb7c0) at receive.c:272
#26 0x0000000000532665 in udp_rcv_loop () at udp_server.c:557
#27 0x00000000004688a1 in main_loop () at main.c:1638
#28 0x000000000046b84a in main (argc=13, argv=0x7fffcb1cbaf8) at
main.c:2566
This time, the overwritten fragment was:
Sep 6 04:47:54 gw1 /usr/local/sbin/kamailio[**19629]: : <core>
[mem/q_malloc.c:140]: qm_debug_frag(): BUG: qm_*: fragm. 0x7f7a3a4fc918
(address 0x7f7a3a4fc948) beginning overwritten(3e653834323335)!
This time, the pedigree of the fragment address was much shorter:
Sep 6 04:47:50 gw1 /usr/local/sbin/kamailio[**19631]: DEBUG: <core>
[mem/q_malloc.c:413]: qm_malloc(): qm_malloc(0x7f7a3a24a010, 56) returns
address 0x7f7a3a4fc918 frag. 0x7f7a3a4fc8e8 (size=96) on 1 -th hit
Sep 6 04:47:50 gw1 /usr/local/sbin/kamailio[**19631]: DEBUG: <core>
[mem/q_malloc.c:437]: qm_free(): qm_free(0x7f7a3a24a010, 0x7f7a3a4fc918),
called from <core>: data_lump.c: free_duped_lump_list(626)
Sep 6 04:47:54 gw1 /usr/local/sbin/kamailio[**19627]: DEBUG: <core>
[mem/q_malloc.c:413]: qm_malloc(): qm_malloc(0x7f7a3a24a010, 48) returns
address 0x7f7a3a4fc918 frag. 0x7f7a3a4fc8e8 (size=48) on 1 -th hit
Sep 6 04:47:54 gw1 /usr/local/sbin/kamailio[**19627]: DEBUG: <core>
[db_res.c:184]: db_allocate_rows(): allocate 48 bytes for rows at
0x7f7a3a4fc918
Sep 6 04:47:54 gw1 /usr/local/sbin/kamailio[**19627]: DEBUG: <core>
[db_res.c:62]: db_free_rows(): freeing rows at 0x7f7a3a4fc918
Sep 6 04:47:54 gw1 /usr/local/sbin/kamailio[**19627]: DEBUG: <core>
[mem/q_malloc.c:437]: qm_free(): qm_free(0x7f7a3a24a010, 0x7f7a3a4fc918),
called from <core>: db_res.c: db_free_rows(63)
Sep 6 04:47:54 gw1 /usr/local/sbin/kamailio[**19627]: DEBUG: <core>
[mem/q_malloc.c:413]: qm_malloc(): qm_malloc(0x7f7a3a24a010, 48) returns
address 0x7f7a3a4fc918 frag. 0x7f7a3a4fc8e8 (size=48) on 1 -th hit
Sep 6 04:47:54 gw1 /usr/local/sbin/kamailio[**19627]: DEBUG: <core>
[db_val.c:127]: db_str2val(): allocate 48 bytes memory for STRING at
0x7f7a3a4fc918
Sep 6 04:47:54 gw1 /usr/local/sbin/kamailio[**19627]: DEBUG: <core>
[db_row.c:68]: db_free_row(): free VAL_STRING[14]
'<urn:uuid:d3bcbc0b-7fde-4db5-**9871-79efb9b07aab>' at 0x7f7a3a4fc918
Sep 6 04:47:54 gw1 /usr/local/sbin/kamailio[**19627]: DEBUG: <core>
[mem/q_malloc.c:437]: qm_free(): qm_free(0x7f7a3a24a010, 0x7f7a3a4fc918),
called from <core>: db_row.c: db_free_row(69)
Sep 6 04:47:54 gw1 /usr/local/sbin/kamailio[**19627]: DEBUG: <core>
[mem/q_malloc.c:413]: qm_malloc(): qm_malloc(0x7f7a3a24a010, 48) returns
address 0x7f7a3a4fc918 frag. 0x7f7a3a4fc8e8 (size=48) on 1 -th hit
Sep 6 04:47:54 gw1 /usr/local/sbin/kamailio[**19629]: DEBUG: <core>
[mem/q_malloc.c:413]: qm_malloc(): qm_malloc(0x7f7a3a24a010, 952) returns
address 0x7f7a3a4fc948 frag. 0x7f7a3a4fc918 (size=952) on 1 -th hit
Sep 6 04:47:54 gw1 /usr/local/sbin/kamailio[**19629]: DEBUG: <core>
[mem/q_malloc.c:472]: qm_free(): qm_free: freeing frag. 0x7f7a3a4fc918
alloc'ed from <core>: rvalue.c: rval_new_empty(236)
Sep 6 04:47:54 gw1 /usr/local/sbin/kamailio[**19629]: : <core>
[mem/q_malloc.c:140]: qm_debug_frag(): BUG: qm_*: fragm. 0x7f7a3a4fc918
(address 0x7f7a3a4fc948) beginning overwritten(3e653834323335)!
Sep 6 04:48:06 gw1 /usr/local/sbin/kamailio[**19627]: DEBUG: qm_status:
6792. N address=0x7f7a3a4fc918 frag=0x7f7a3a4fc8e8 size=48 used=1
But the common factor is database involvement beforehand.
Am I right to suppose that this points to a buffer overflow in db_postgres
or libsrdb1 somewhere?
-- Alex
--
Alex Balashov - Principal
Evariste Systems LLC
235 E Ponce de Leon Ave
Suite 106
Decatur, GA 30030
United States
Tel: +1-678-954-0670
Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
______________________________**_________________
sr-dev mailing list
sr-dev(a)lists.sip-router.org
http://lists.sip-router.org/**cgi-bin/mailman/listinfo/sr-**dev<http://l…
--
Daniel-Constantin Mierla
http://www.asipto.com
13 Sep
13 Sep
12:19 p.m.
Hi Daniel,
I don't suppose you've had a chance to take a look at this?
I don't mean to pester, and you certainly are under no obligation to
look at it at all, least of all on a schedule not of your choosing.
However, it is a critical crash bug here (Kamailio can be crashed by
calling a certain phone number at any time) and it would just help me
out a lot of it were not forgotten. :-)
Cheers,
-- Alex
--
Alex Balashov - Principal
Evariste Systems LLC
235 E Ponce de Leon Ave
Suite 106
Decatur, GA 30030
United States
Tel: +1-678-954-0670
Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
12:27 p.m.
Hi Alex,
it's on my list for today, as I got my computer back after few days in
service.
Cheers,
Daniel
On 9/13/13 11:19 AM, Alex Balashov wrote:
Hi Daniel,
I don't suppose you've had a chance to take a look at this?
I don't mean to pester, and you certainly are under no obligation to
look at it at all, least of all on a schedule not of your choosing.
However, it is a critical crash bug here (Kamailio can be crashed by
calling a certain phone number at any time) and it would just help me
out a lot of it were not forgotten. :-)
Cheers,
-- Alex
--
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio Advanced Trainings - Berlin, Oct 21-24; Miami, Nov 11-13, 2013
- more details about Kamailio trainings at http://www.asipto.com -
2:07 p.m.
Hello, a question not to look at wrong version, is it latest 4.0? I saw
that master has changes in To parser done by Hugh...
Cheers,
Daniel
On 9/13/13 11:27 AM, Daniel-Constantin Mierla wrote:
Hi Alex,
it's on my list for today, as I got my computer back after few days in
service.
Cheers,
Daniel
On 9/13/13 11:19 AM, Alex Balashov wrote:
--
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio Advanced Trainings - Berlin, Oct 21-24; Miami, Nov 11-13, 2013
- more details about Kamailio trainings at http://www.asipto.com -
Hi Daniel,
I don't suppose you've had a chance to take a look at this?
I don't mean to pester, and you certainly are under no obligation to
look at it at all, least of all on a schedule not of your choosing.
However, it is a critical crash bug here (Kamailio can be crashed by
calling a certain phone number at any time) and it would just help me
out a lot of it were not forgotten. :-)
Cheers,
-- Alex
2:09 p.m.
On 09/13/2013 07:07 AM, Daniel-Constantin Mierla wrote:
Hello, a question not to look at wrong version, is it
latest 4.0? I saw
that master has changes in To parser done by Hugh...
[root@gw1 sip-router]# git branch
* 4.0
[root@gw1 sip-router]# git log | head -n 4
commit 56e808078325810c7c8c0d436a0f4f51350680b5
Merge: 10da17d 2a224a5
Author: root <root(a)gw1.sip.us>
Date: Tue Aug 27 05:54:20 2013 -0400
-- Alex
--
Alex Balashov - Principal
Evariste Systems LLC
235 E Ponce de Leon Ave
Suite 106
Decatur, GA 30030
United States
Tel: +1-678-954-0670
Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
2:12 p.m.
What is the last merge? The backport of the commit I did last time for
this issue? Just checking to see if there is some custome
development/modules around.
Daniel
On 9/13/13 1:09 PM, Alex Balashov wrote:
On 09/13/2013 07:07 AM, Daniel-Constantin Mierla
wrote:
--
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio Advanced Trainings - Berlin, Oct 21-24; Miami, Nov 11-13, 2013
- more details about Kamailio trainings at http://www.asipto.com -
Hello, a question not to look at wrong version,
is it latest 4.0? I saw
that master has changes in To parser done by Hugh...
[root@gw1 sip-router]# git branch
* 4.0
[root@gw1 sip-router]# git log | head -n 4
commit 56e808078325810c7c8c0d436a0f4f51350680b5
Merge: 10da17d 2a224a5
Author: root <root(a)gw1.sip.us>
Date: Tue Aug 27 05:54:20 2013 -0400
-- Alex
2:15 p.m.
On 09/13/2013 07:12 AM, Daniel-Constantin Mierla wrote:
What is the last merge? The backport of the commit I
did last time for
this issue? Just checking to see if there is some custome
development/modules around.
The patch you made (setting To param list to NULL) was manually applied.
Here's the git diff for the entire tree:
[root@gw1 sip-router]# git diff
diff --git a/Makefile.defs b/Makefile.defs
index 15f42ae..c17992b 100644
--- a/Makefile.defs
+++ b/Makefile.defs
@@ -172,7 +172,7 @@ MEMMNG ?= 1
# memory debugger switcher
# 0 - off (no-debug mode)
# 1 - on (debug mode)
-MEMDBG ?= 0
+MEMDBG = 1
SER_VER = $(shell expr $(VERSION) \* 1000000 + $(PATCHLEVEL) \* 1000 + \
$(SUBLEVEL) )
@@ -976,7 +976,7 @@ ifeq ($(ARCH), x86_64)
ifeq ($(CC_NAME), gcc)
C_DEFS+=-DCC_GCC_LIKE_ASM
#common stuff
- CFLAGS=-g -O9 -funroll-loops
-Wcast-align $(PRO
+ CFLAGS=-g -ggdb3 -ggdb -Wcast-align
$(PROFILE)
#if gcc 4.5+
# don't add '-mtune=$(CPU)' - gcc failure
ifeq ($(CC_SHORTVER), 4.5+)
diff --git a/parser/parse_to.c b/parser/parse_to.c
index b97f8b0..93b792c 100644
--- a/parser/parse_to.c
+++ b/parser/parse_to.c
@@ -828,6 +828,8 @@ void free_to_params(struct to_body* const tb)
pkg_free(tp);
tp=foo;
}
+
+ tb->param_lst = NULL;
}
Here's the recent git log:
commit 56e808078325810c7c8c0d436a0f4f51350680b5
Merge: 10da17d 2a224a5
Author: root <root(a)gw1.sip.us>
Date: Tue Aug 27 05:54:20 2013 -0400
Merge branch '4.0' of git://git.sip-router.org/sip-router into 4.0
commit 2a224a569cea270d8db84438f163b9f309569df9
Author: Daniel-Constantin Mierla <miconda(a)gmail.com>
Date: Thu Aug 22 00:14:53 2013 +0200
core: print src address details if initial message parsing fails
- reported by Juha Heinanen
(cherry picked from commit 3ccf4b43e81bd2654cb306a3c2cc21b97cb51f62)
commit fd4a2dde96a692c165f382839c3bef8636dfd9e2
Author: Juha Heinanen <jh(a)tutpro.com>
Date: Thu Aug 22 08:20:52 2013 +0300
modules/lcr: added some linefeed chars missing from syslog messages
- Patch provided by Kevin Scott Adams.
(cherry picked from commit d03651fb4c3a6b50923029e121eed201fb1ff550)
commit 10da17d5c4261775bd6c354faa17159971df1332
Merge: 9a90ca2 090035c
Author: root <root(a)gw1.sip.us>
Date: Sun Aug 18 10:44:58 2013 -0400
Merge branch '4.0' of git://git.sip-router.org/sip-router into 4.0
commit 090035cafa01bf54c41bc9f1b145fc7b4dbf0e4b
Author: Daniel-Constantin Mierla <miconda(a)gmail.com>
Date: Thu Aug 15 15:38:09 2013 +0200
ChangeLog: updated for v4.0.3
commit a75a8a140e53ef8cee58d670b3954e7ac4cdb1b8
Author: Daniel-Constantin Mierla <miconda(a)gmail.com>
Date: Thu Aug 15 15:33:55 2013 +0200
Makefile.defs: version set to 4.0.3
-- Alex
--
Alex Balashov - Principal
Evariste Systems LLC
235 E Ponce de Leon Ave
Suite 106
Decatur, GA 30030
United States
Tel: +1-678-954-0670
Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
5:26 p.m.
Daniel,
If it helps, I did try the master at the time that I submitted those
core dumps in the last week or two. It exhibited the same crash
behaviour, and that incorporated Hugh's changes (which we made back in
March 2013).
-- Alex
--
Alex Balashov - Principal
Evariste Systems LLC
235 E Ponce de Leon Ave
Suite 106
Decatur, GA 30030
United States
Tel: +1-678-954-0670
Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
16 Sep
16 Sep
11:01 a.m.
Hello,
I wrote few days ago as reply to your private email with logs, asking
for few more details from the core. Pinging here to be sure you haven't
missed them.
Cheers,
Daniel
On 9/13/13 4:26 PM, Alex Balashov wrote:
Daniel,
If it helps, I did try the master at the time that I submitted those
core dumps in the last week or two. It exhibited the same crash
behaviour, and that incorporated Hugh's changes (which we made back in
March 2013).
-- Alex
--
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio Advanced Trainings - Berlin, Oct 21-24; Miami, Nov 11-13, 2013
- more details about Kamailio trainings at http://www.asipto.com -
11:02 a.m.
Hi Daniel,
On 09/16/2013 04:01 AM, Daniel-Constantin Mierla wrote:
I wrote few days ago as reply to your private email
with logs, asking
for few more details from the core. Pinging here to be sure you haven't
missed them.
Thank you, I haven't missed them. I should be able to have them to you
today. To get the information you requested, I need to go back and
correlate it to the original core dump (I have dozens) I quoted at the
time, or reproduce the problem again. It's going to take me a bit, and
I'm sorry for the delay.
Cheers,
-- Alex
--
Alex Balashov - Principal
Evariste Systems LLC
235 E Ponce de Leon Ave
Suite 106
Decatur, GA 30030
United States
Tel: +1-678-954-0670
Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
11:05 a.m.
Hello,
On 9/16/13 10:02 AM, Alex Balashov wrote:
Hi Daniel,
On 09/16/2013 04:01 AM, Daniel-Constantin Mierla wrote:
no problem.
If you can't corelate with old logs and plan reproduce it, then let me
know. I may give some extra instructions to get even more information.
Cheers,
Daniel
--
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio Advanced Trainings - Berlin, Oct 21-24; Miami, Nov 11-13, 2013
- more details about Kamailio trainings at http://www.asipto.com -
I wrote few days ago as reply to your private
email with logs, asking
for few more details from the core. Pinging here to be sure you haven't
missed them.
Thank you, I haven't missed them. I should be able to have them to
you today. To get the information you requested, I need to go back
and correlate it to the original core dump (I have dozens) I quoted at
the time, or reproduce the problem again. It's going to take me a
bit, and I'm sorry for the delay.
11:06 a.m.
On 09/16/2013 04:05 AM, Daniel-Constantin Mierla wrote:
Hello,
On 9/16/13 10:02 AM, Alex Balashov wrote:
I think reproducing it is easier at this point. Please let me know what
other info you'd like, beyond what you requested in the private e-mail.
--
Alex Balashov - Principal
Evariste Systems LLC
235 E Ponce de Leon Ave
Suite 106
Decatur, GA 30030
United States
Tel: +1-678-954-0670
Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
Hi Daniel,
On 09/16/2013 04:01 AM, Daniel-Constantin Mierla wrote:
no problem.
If you can't corelate with old logs and plan reproduce it, then let me
know. I may give some extra instructions to get even more information. I wrote few days ago as reply to your private
email with logs, asking
for few more details from the core. Pinging here to be sure you haven't
missed them.
Thank you, I haven't missed them. I should be able to have them to
you today. To get the information you requested, I need to go back
and correlate it to the original core dump (I have dozens) I quoted at
the time, or reproduce the problem again. It's going to take me a
bit, and I'm sorry for the delay.
11:26 a.m.
On 9/16/13 10:06 AM, Alex Balashov wrote:
On 09/16/2013 04:05 AM, Daniel-Constantin Mierla
wrote:
The issue seems to be a write of data before the allocated pointer or
more than allocated. From the logs, the chunk before is used for
$var(...) and the sources doesn't reveal any bug, furthermore, the chunk
with issue has its beginning ok, thus it is very likely to be a write
before the pointer. The chuck with issues is from the To header parser,
also with low chances for issues, because it just contain pointers, so a
write will be at the addresses pointed from here. The next chunk is from
db_postgres and might be an issue to write at invalid row index, but I
couldn't spot where that can happen.
Anyhow, my plan was to replace memcpy, strcpy and strncpy function to
write in logs the pointers they work with, in order to see what code is
overwriting the chunk head. (I hope is not a memove or some internal
copy function)
The procedure is not that complex. Attached is a file crepl.c, copy it
on the same system and compile it with:
gcc -shared -ldl -fPIC crepl.c -o libcrepl.so
You have to start kamailio from command line, also with log_stderror=yes
and stderr redirected to a file:
LD_PRELOAD=/path/to/libcrepl.so /path/to/kamailio -f
/path/to/kamailio.cfg -E -ddd 2>/tmp/kamailio.log
(-f, -E, -ddd are optional, as they can be default value or what is in
config file). I haven't made the functions to write to syslog, thus you
have to configure kamailio to write to stderror and save the output in a
file. Or you change the crepl.c file to write to syslog.
You should see in logs a lot of messages with mem copy operations,
prefixed with '======...'.
Send me all the logs, full backtrace as well as the other details I
asked for.
Cheers,
Daniel
--
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio Advanced Trainings - Berlin, Oct 21-24; Miami, Nov 11-13, 2013
- more details about Kamailio trainings at http://www.asipto.com -
[...]
If you can't corelate with old logs and plan reproduce it, then let me
know. I may give some extra instructions to get even more information.
I think reproducing it is easier at this point. Please let me know
what other info you'd like, beyond what you requested in the private
e-mail.
11:28 a.m.
Daniel,
Thank you; should this be run in high debug (3 or 4) mode?
-- Alex
On 09/16/2013 04:26 AM, Daniel-Constantin Mierla wrote:
On 9/16/13 10:06 AM, Alex Balashov wrote:
--
Alex Balashov - Principal
Evariste Systems LLC
235 E Ponce de Leon Ave
Suite 106
Decatur, GA 30030
United States
Tel: +1-678-954-0670
Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
On 09/16/2013 04:05 AM, Daniel-Constantin Mierla
wrote:
The issue seems to be a write of data before the allocated pointer or
more than allocated. From the logs, the chunk before is used for
$var(...) and the sources doesn't reveal any bug, furthermore, the chunk
with issue has its beginning ok, thus it is very likely to be a write
before the pointer. The chuck with issues is from the To header parser,
also with low chances for issues, because it just contain pointers, so a
write will be at the addresses pointed from here. The next chunk is from
db_postgres and might be an issue to write at invalid row index, but I
couldn't spot where that can happen.
Anyhow, my plan was to replace memcpy, strcpy and strncpy function to
write in logs the pointers they work with, in order to see what code is
overwriting the chunk head. (I hope is not a memove or some internal
copy function)
The procedure is not that complex. Attached is a file crepl.c, copy it
on the same system and compile it with:
gcc -shared -ldl -fPIC crepl.c -o libcrepl.so
You have to start kamailio from command line, also with log_stderror=yes
and stderr redirected to a file:
LD_PRELOAD=/path/to/libcrepl.so /path/to/kamailio -f
/path/to/kamailio.cfg -E -ddd 2>/tmp/kamailio.log
(-f, -E, -ddd are optional, as they can be default value or what is in
config file). I haven't made the functions to write to syslog, thus you
have to configure kamailio to write to stderror and save the output in a
file. Or you change the crepl.c file to write to syslog.
You should see in logs a lot of messages with mem copy operations,
prefixed with '======...'.
Send me all the logs, full backtrace as well as the other details I
asked for.
Cheers,
Daniel
_______________________________________________
sr-dev mailing list
sr-dev(a)lists.sip-router.org
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-dev
[...]
If you can't corelate with old logs and plan reproduce it, then let me
know. I may give some extra instructions to get even more information.
I think reproducing it is easier at this point. Please let me know
what other info you'd like, beyond what you requested in the private
e-mail.
11:37 a.m.
On 09/16/2013 04:28 AM, Alex Balashov wrote:
Daniel,
Thank you; should this be run in high debug (3 or 4) mode?
Sorry, I guess -ddd answers that.
--
Alex Balashov - Principal
Evariste Systems LLC
235 E Ponce de Leon Ave
Suite 106
Decatur, GA 30030
United States
Tel: +1-678-954-0670
Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
11:54 a.m.
Hi Daniel,
I sent you the requested information. However, this time the crash was
on the processing of a REGISTER (after the familiar steps taken to
reproduce it), so I'm going to try to get another one that follows the
more familiar pattern of crashing on To params free.
--
Alex Balashov - Principal
Evariste Systems LLC
235 E Ponce de Leon Ave
Suite 106
Decatur, GA 30030
United States
Tel: +1-678-954-0670
Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
19 Sep
19 Sep
4:54 p.m.
Hello,
for the records, the issue was fixed (master and 4.0). It was related to
running lookup location again in failure route for records that have
instance value.
Many thanks to Alex for testing and providing lot and useful logs,
runing custom patches.
Cheers,
Daniel
On 9/16/13 10:54 AM, Alex Balashov wrote:
Hi Daniel,
I sent you the requested information. However, this time the crash
was on the processing of a REGISTER (after the familiar steps taken to
reproduce it), so I'm going to try to get another one that follows the
more familiar pattern of crashing on To params free.
--
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio Advanced Trainings - Berlin, Oct 21-24; Miami, Nov 11-13, 2013
- more details about Kamailio trainings at http://www.asipto.com -
5 Sep
5 Sep
1:33 p.m.
To note (from 'bt full'):
#0 0x0000000000435908 in free_lump_list (l=0x7f4f81626730) at
data_lump.c:510
t = 0x0
r = 0x3731396430392d64
foo = 0x3731396430392d64
crt = 0x7f4f81626730
And nothing seems to be out of bounds or unaddressable here:
(gdb) bt full
#0 0x0000000000435908 in free_lump_list (l=0x7f4f81626730) at
data_lump.c:510
t = 0x0
r = 0x3731396430392d64
foo = 0x3731396430392d64
crt = 0x7f4f81626730
#1 0x0000000000542d6a in free_sip_msg (msg=0x7f4f8180e970)
at parser/msg_parser.c:731
No locals.
#2 0x000000000049e39d in receive_msg (
buf=0x9065c0 "SIP/2.0 404 Not Found\r\nVia: SIP/2.0/UDP
55.177.31.199;branch=z9hG4bK022f.7350a5c7.0\r\nVia: SIP/2.0/UDP
68.68.120.41:5060;branch=z9hG4bK0cBc7d5138cbe6ccf3f\r\nRecord-Route:
<sip:55.177.31.199;lr=on;ftag=g"..., len=717,
rcv_info=0x7fff96469750) at receive.c:296
msg = 0x7f4f8180e970
ctx = {rec_lev = 8750200, run_flags = 0, last_retcode = 0,
jmp_env = {{
__jmpbuf = {0, 0, 0, 265124110288, 1, 0, 167503724545,
9463168},
__mask_was_saved = -1773758632, __saved_mask = {__val = {1,
12884901901, 139979451761824, 4277328, 140735714597504,
140735714596560, 5426752, 140735714596544, 5423489,
50195,
169583417968, 9463168, 140735714596688, 80, 5423617,
4277328}}}}}
ret = 32591
inb = {
s = 0x9065c0 "SIP/2.0 404 Not Found\r\nVia: SIP/2.0/UDP
55.177.31.199;branch=z9hG4bK022f.7350a5c7.0\r\nVia: SIP/2.0/UDP
68.68.120.41:5060;branch=z9hG4bK0cBc7d5138cbe6ccf3f\r\nRecord-Route:
<sip:55.177.31.199;lr=on;ftag=g"...,
len = 717}
__FUNCTION__ = "receive_msg"
#3 0x000000000052ffa1 in udp_rcv_loop () at udp_server.c:557
len = 717
buf = "SIP/2.0 404 Not Found\r\nVia: SIP/2.0/UDP
55.177.31.199;branch=z9hG4bK022f.7350a5c7.0\r\nVia: SIP/2.0/UDP
68.68.120.41:5060;branch=z9hG4bK0cBc7d5---Type <return> to continue, or
q <return> to quit---
138cbe6ccf3f\r\nRecord-Route: <sip:55.177.31.199;lr=on;ftag=g"...
tmp = 0x906580 "96.237.173.61"
from = 0x7f4f817e8510
fromlen = 16
ri = {src_ip = {af = 2, len = 4, u = {addrl = {2045424312,
139979451761824}, addr32 = {2045424312, 0, 2172617888,
32591},
addr16 = {45752, 31210, 0, 0, 33952, 33151, 32591, 0},
addr =
"\270\262\352y\000\000\000\000\240\204\177\201O\177\000"}}, dst_ip = {af
= 2, len = 4, u = {addrl = {3257728577, 0}, addr32 = {
3257728577, 0, 0, 0}, addr16 = {65089, 49708, 0, 0, 0,
0, 0,
0}, addr = "A\376,\302", '\000' <repeats 11
times>}},
src_port = 5060, dst_port = 5060, proto_reserved1 = 0,
proto_reserved2 = 0, src_su = {s = {sa_family = 2,
sa_data = "\023ĸ\262\352y\000\000\000\000\000\000\000"},
sin = {
sin_family = 2, sin_port = 50195, sin_addr = {
s_addr = 2045424312},
sin_zero = "\000\000\000\000\000\000\000"}, sin6 = {
sin6_family = 2, sin6_port = 50195, sin6_flowinfo =
2045424312,
sin6_addr = {__in6_u = {__u6_addr8 = '\000' <repeats 15
times>,
__u6_addr16 = {0, 0, 0, 0, 0, 0, 0, 0}, __u6_addr32 =
{0, 0,
0, 0}}}, sin6_scope_id = 0}},
bind_address = 0x7f4f817f8370, proto = 1 '\001'}
__FUNCTION__ = "udp_rcv_loop"
#4 0x0000000000467de2 in main_loop () at main.c:1638
i = 4
pid = 0
si = 0x7f4f817f8370
si_desc = "udp receiver child=4
sock=55.177.31.199:5060\000\177\000\000(\335~\201O\177\000\000\270\334\302*\000\000\000\000\220\230F\226\377\177\000\000\270\334\302*\000\000\000\000PDA\000\000\000\000\000\200\232F\226\377\177",
'\000' <repeats 18 times>"\300,
\230F\226\377\177\000\000\337\"K\000\000\000\000"
nrprocs = 8
---Type <return> to continue, or q <return> to quit---
__FUNCTION__ = "main_loop"
#5 0x000000000046ad8b in main (argc=13, argv=0x7fff96469a88) at main.c:2566
cfg_stream = 0x1b10010
c = -1
r = 0
tmp = 0x7fff9646b414 ""
tmp_len = 0
port = 0
proto = 0
options = 0x5c86f8
":f:cm:M:dVIhEeb:l:L:n:vKrRDTN:W:w:t:u:g:P:G:SQ:O:a:A:"
ret = -1
seed = 4063171243
rfd = 4
debug_save = 0
debug_flag = 0
dont_fork_cnt = 0
n_lst = 0x3dbae0fb88
p = 0x5b3450 "H\211l$\330L\211d$\340H\215-\237K*"
__FUNCTION__ = "main"
-- Alex
--
Alex Balashov - Principal
Evariste Systems LLC
235 E Ponce de Leon Ave
Suite 106
Decatur, GA 30030
United States
Tel: +1-678-954-0670
Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
28 Aug
28 Aug
10:43 a.m.
Hi Daniel,
A single head/tail message does appear:
Aug 28 03:42:09 gw1 /usr/local/sbin/kamailio[7913]: : <core>
[mem/q_malloc.c:159]: qm_debug_frag(): BUG: qm_*: prev. fragm. tail
overwritten(3630643536313a64,
2d303634622d3965)[0x7f99b713d008:0x7f99b713d038]!
Shortly before a crash.
-- Alex
--
Alex Balashov - Principal
Evariste Systems LLC
235 E Ponce de Leon Ave
Suite 106
Decatur, GA 30030
United States
Tel: +1-678-954-0670
Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
4082
days inactive
4105
days old
42 comments
2 participants
participants (2)
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Alex Balashov -
Daniel-Constantin Mierla