[OpenSIPS-Users] OpenSIPS crashing on 200 OK

[Ben Newlin]

Bogdan,

I found this previous thread that has this error: http://lists.opensips.org/pipermail/users/2016-October/035635.html

The fix suggested there worked. When I removed the quotes around the regexp used in re.subst the crash did not occur.

Ben Newlin

From: Ben Newlin <Ben.Newlin at genesys.com>
Date: Tuesday, February 27, 2018 at 2:20 PM
To: Bogdan-Andrei Iancu <bogdan at opensips.org>, OpenSIPS users mailling list <users at lists.opensips.org>
Subject: Re: [OpenSIPS-Users] OpenSIPS crashing on 200 OK

Bogdan,

I just tested it and that crash is no longer occurring. However I am now seeing a different crash, but it seems to still be related to regexp.

Feb 27 19:07:17 [369] ERROR:core:subst_parser: string too short
Feb 27 19:07:17 [369] ERROR:core:tr_eval_re: Can't compile regexp
Feb 27 19:07:17 [369] WARNING:core:do_assign: no value in right expression at /opensips/control.cfg:1952
Feb 27 19:07:17 [361] INFO:core:handle_sigs: child process 369 exited by a signal 11
Feb 27 19:07:17 [361] INFO:core:handle_sigs: core was generated
Feb 27 19:07:17 [361] INFO:core:handle_sigs: terminating due to SIGCHLD

The do_assign error makes it seem like there may be something wrong in my script, but I can’t see what it is. And I’m not sure what the “string too short” error is either or why the regexp could not be compiled. It looks valid to me.

Backtrace: https://pastebin.com/Fk2BRnsg

Ben Newlin

From: Bogdan-Andrei Iancu <bogdan at opensips.org>
Date: Tuesday, February 27, 2018 at 12:55 PM
To: OpenSIPS users mailling list <users at lists.opensips.org>, Ben Newlin <Ben.Newlin at genesys.com>
Subject: Re: [OpenSIPS-Users] OpenSIPS crashing on 200 OK

Hi Ben,

I just committed the fix for this - could you update from GIT and give it a new try ?

Thanks and regards,




Bogdan-Andrei Iancu



OpenSIPS Founder and Developer

  http://www.opensips-solutions.com<http://www.opensips-solutions.com>

OpenSIPS Summit 2018

  http://www.opensips.org/events/Summit-2018Amsterdam<http://www.opensips.org/events/Summit-2018Amsterdam>
On 02/27/2018 06:19 PM, Bogdan-Andrei Iancu wrote:
Thanks Ben for the support in investigating this. The bug was identified and confirm, let me work on a fix right now. I will shortly ping you for testing ;)

Regards,



Bogdan-Andrei Iancu



OpenSIPS Founder and Developer

  http://www.opensips-solutions.com<http://www.opensips-solutions.com>

OpenSIPS Summit 2018

  http://www.opensips.org/events/Summit-2018Amsterdam<http://www.opensips.org/events/Summit-2018Amsterdam>
On 02/27/2018 12:12 AM, Bogdan-Andrei Iancu wrote:
OK, to be more precise, the crash is around an "If" statement where you have in the condition an REGEXP test (=~) with a left operand translated into "downstream" (maybe a $DLG_dir ??).
Does it sound familiar to you :) ?

Regards,



Bogdan-Andrei Iancu



OpenSIPS Founder and Developer

  http://www.opensips-solutions.com<http://www.opensips-solutions.com>

OpenSIPS Summit 2018

  http://www.opensips.org/events/Summit-2018Amsterdam<http://www.opensips.org/events/Summit-2018Amsterdam>
On 02/26/2018 11:32 PM, Ben Newlin wrote:
Yes, that is from that exact file, line 435. It’s just a return statement. I can send you the file off-list if you’d like.

I do use the $DLG_dir in my script in a few places, but the only one this crash would have hit is in some logging.

Ben Newlin




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