3 Apr
2003
3 Apr
'03
1:15 a.m.
On 02-04 23:50, Maxim Sobolev wrote:
On Wed, Apr 02, 2003 at 10:33:36PM +0200, Jan Janak
wrote:
I reviewed the locking and haven't found any problem. We have been
running ser for very long time without any problems (I think that
locking problem would show up on iptel.org - it's registrar is very
active).
Could you please tar the sources along with the core dump (and log
files if possible) and send it to me ? I currently have no clue why
such a mysterious crash happended (it can be even HW problem) but I'd
like to review it later.
thanks, Jan.
Hello,
this is really strange, the structure could never be filled with zeroes
under normal circumstancies. At least domain and aor must be set to
non-zero value. After the structure is created these fields are automatically
set. And they must be non-zero otherwise the structure would never be
created.
So either gdb doesn't show correct values or the memory has been
corrupted somehow.
Yes, it looks like that, because ptr is a valid pointer in the trace
and ptr->next shouldn't cause sig11. Maybe there is a problem with
locking? Is it possible that two or more processes would start
modifying _r linked list simulateneously, therefore breaking its
integrity?
-Maxim
Is anything suspicous in your log files ?
regards, Jan.
On 02-04 22:54, Maxim Sobolev wrote:
_______________________________________________
Serusers mailing list
serusers(a)lists.iptel.org
http://lists.iptel.org/mailman/listinfo/serusers Hi,
I've observed rather mysterious crash in ser, see attached debug log.
Any ideas what gives?
-Maxim
Script started on Wed Apr 2 11:46:12 2003
bash-2.05a$ sudo gdb ~/PortaSIP/ser/work/ser-0.8.10/ser ser.core
GNU gdb 4.18 (FreeBSD)
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GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "i386-unknown-freebsd"...Deprecated bfd_read called
at /usr/src/gnu/usr.bin/binutils/gdb/../../../../contrib/gdb/gdb/dbxread.c line 2627 in
elfstab_build_psymtabs
Deprecated bfd_read called at
/usr/src/gnu/usr.bin/binutils/gdb/../../../../contrib/gdb/gdb/dbxread.c line 933 in
fill_symbuf
Core was generated by `ser'.
Program terminated with signal 11, Segmentation fault.
Reading symbols from /usr/lib/libc.so.4...done.
Reading symbols from /usr/local/lib/ser/modules/sl.so...done.
Reading symbols from /usr/local/lib/ser/modules/tm.so...done.
Reading symbols from /usr/local/lib/ser/modules/rr.so...done.
Reading symbols from /usr/local/lib/ser/modules/maxfwd.so...done.
Reading symbols from /usr/local/lib/ser/modules/usrloc.so...done.
Reading symbols from /usr/local/lib/ser/modules/registrar.so...done.
Reading symbols from /usr/local/lib/ser/modules/nathelper.so...done.
Reading symbols from /usr/local/lib/ser/modules/textops.so...done.
Reading symbols from /usr/local/lib/ser/modules/radius_auth.so...done.
Reading symbols from /usr/local/lib/libradiusclient.so.0...done.
Reading symbols from /usr/lib/libmd.so.2...done.
Reading symbols from /usr/lib/libcrypt.so.2...done.
Reading symbols from /usr/libexec/ld-elf.so.1...done.
#0 0x2a1b0cb3 in nodb_timer (_r=0x282ee1a8) at urecord.c:203
203 ptr = ptr->next;
(gdb) print ptr
$1 = (ucontact_t *) 0x29647362
(gdb) print *ptr
$2 = {domain = 0x0, aor = 0x0, c = {s = 0x0, len = 0}, expires = 0, q = 0, callid = {s =
0x0,
len = 0}, cseq = 0, state = CS_NEW, next = 0x0, prev = 0x0}
(gdb) bt
#0 0x2a1b0cb3 in nodb_timer (_r=0x282ee1a8) at urecord.c:203
#1 0x2a1b02cc in timer_urecord (_r=0x282ee1a8) at urecord.c:333
#2 0x2a1aae28 in timer_udomain (_d=0x282eadc8) at udomain.c:311
#3 0x2a1a76d7 in synchronize_all_udomains () at dlist.c:211
#4 0x2a1af8c9 in timer (ticks=720, param=0x0) at ul_mod.c:234
#5 0x80735c9 in timer_ticker () at timer.c:118
#6 0x805e922 in main_loop () at main.c:654
#7 0x80611b1 in main (argc=1, argv=0xbfbffbe8) at main.c:1383
#8 0x804c5a6 in _start ()
(gdb) up
#1 0x2a1b02cc in timer_urecord (_r=0x282ee1a8) at urecord.c:333
333 case NO_DB: return nodb_timer(_r);
(gdb) print _r
$3 = (urecord_t *) 0x282ee1a8
(gdb) print *_r
$4 = {domain = 0x282ead78, aor = {s = 0x282ee1e8
"16045215277aa\"\r\nContent-Length: 0\r\n\r\n",
len = 11}, contacts = 0x282eea68, slot = 0x282eb188, d_ll = {prev = 0x282ee088, next
= 0x0},
s_ll = {prev = 0x0, next = 0x0}}
(gdb) up
#2 0x2a1aae28 in timer_udomain (_d=0x282eadc8) at udomain.c:311
311 if (timer_urecord(ptr) < 0) {
(gdb) q
bash-2.05a$ exit
Script done on Wed Apr 2 11:47:14 2003