[Users] Memory issues - sr-users

5 Jun 2007

Hi All,

I have a recurrent memory problem with openser 1.2.0. In this case it 
only acts as a SIP router. No registration, accounting etc. and only 
approx. 20 simultaneous calls.

Here is the problem: everything works fine (calls from/to PSTN through 
different SIP servers), but after a few days, "out of memory" errors 
start to occur. After this, calls don't work anymore, even if openser 
continues to run.

Here is a part of the log, showing the first errors:

Jun  5 17:25:43 localhost SER[27772]: ERROR: build_res_buf_from_sip_res: 
out of mem
Jun  5 17:25:43 localhost SER[27772]: ERROR:tm:relay_reply: no mem for 
outbound reply buffer
Jun  5 17:25:43 localhost SER[27772]: ERROR: via_builder: out of memory
Jun  5 17:25:43 localhost SER[27772]: ERROR: build_local: no via header 
got from builder
Jun  5 17:25:43 localhost SER[27772]: ERROR: attempt to build a CANCEL 
failed
Jun  5 17:25:50 localhost SER[27772]: ERROR: build_res_buf_from_sip_res: 
out of mem
Jun  5 17:25:50 localhost SER[27772]: ERROR:tm:relay_reply: no mem for 
outbound reply buffer
Jun  5 17:25:50 localhost SER[27772]: ERROR: build_res_buf_from_sip_req: 
out of memory  ; needs 410
Jun  5 17:26:11 localhost SER[27772]: ERROR: build_res_buf_from_sip_res: 
out of mem
Jun  5 17:26:11 localhost SER[27772]: ERROR:tm:relay_reply: no mem for 
outbound reply buffer
Jun  5 17:26:11 localhost SER[27772]: ERROR: build_res_buf_from_sip_req: 
out of memory  ; needs 404
Jun  5 17:26:25 localhost SER[27772]: eval_elem: no more memory
Jun  5 17:26:25 localhost SER[27772]: do_assign: no value in right 
expression
Jun  5 17:26:25 localhost SER[27772]: ERROR: build_res_buf_from_sip_res: 
out of mem
Jun  5 17:26:25 localhost SER[27772]: ERROR:tm:relay_reply: no mem for 
outbound reply buffer
Jun  5 17:26:25 localhost SER[27772]: ERROR: build_res_buf_from_sip_req: 
out of memory  ; needs 420
Jun  5 17:26:25 localhost SER[27771]: ERROR:forward_reply: no 2nd via 
found in reply
Jun  5 17:26:31 localhost SER[27772]: ERROR: build_res_buf_from_sip_res: 
out of mem
Jun  5 17:26:31 localhost SER[27772]: ERROR:forward_reply: building rpl 
from req failed
Jun  5 17:26:33 localhost SER[27772]: ERROR: build_res_buf_from_sip_res: 
out of mem
Jun  5 17:26:33 localhost SER[27772]: ERROR:forward_reply: building rpl 
from req failed
Jun  5 17:26:38 localhost SER[27772]: ERROR: insert_new_lump_after: out 
of memory
Jun  5 17:26:38 localhost SER[27772]: ERROR: insert_new_lump_before: out 
of memory
Jun  5 17:26:38 localhost SER[27772]: insert_RR(): Error while inserting 
conditional lump
Jun  5 17:26:38 localhost SER[27772]: ERROR: subst_str: mem. allocation 
error (res->s)
Jun  5 17:26:38 localhost SER[27772]: ERROR: do_action: memory 
allocation failure
Jun  5 17:26:38 localhost SER[27772]: ERROR: build_res_buf_from_sip_req: 
out of memory  ; needs 375
Jun  5 17:26:38 localhost SER[27772]: ERROR: mk_proxy: memory allocation 
failure
Jun  5 17:26:38 localhost SER[27772]: ERROR:tm:t_forward_nonack: failure 
to add branches

At this point, similar errors continue to appear and the only way to 
recover is to restart openser.
Nothing unusual seems to cause the initial error. The output of "top" 
appears to be fine after the "crash", and there is still plenty free 
memory on the server.

Could anybody give me some hints on how to solve the problem? I suspect 
a portion of the config file where the record-route headers are split on 
multiple lines (for compatibility issues with another SIP proxy). It's 
the only place where variables are used. You can find it here:

http://switzernet.com/people/christian-lathion/files/070605-openser-config-…

Otherwise the config file is quite usual, with basic processing and 
routing of SIP packets.

Regards,
Christian