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<p class="MsoNormal"><span style="font-size:11.0pt">I was able to reproduce and capture a core dump of the crash. Backtrace is available here:
<a href="https://pastebin.com/WtBB6cKm">https://pastebin.com/WtBB6cKm</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Ben Newlin<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="color:black">From: </span></b><span style="color:black">Ben Newlin <Ben.Newlin@genesys.com><br>
<b>Date: </b>Tuesday, February 27, 2018 at 10:47 PM<br>
<b>To: </b>Bogdan-Andrei Iancu <bogdan@opensips.org>, OpenSIPS users mailling list <users@lists.opensips.org><br>
<b>Subject: </b>Re: [OpenSIPS-Users] OpenSIPS crashing on 200 OK<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt">Unfortunately, I have had another crash during testing. I was not able to capture the core, but I did get this log:</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333">Feb 28 03:35:22 [359] CRITICAL:core:qm_debug_frag: qm_*: prev. fragm. tail overwritten(c0c0c0c0c0c0c020, abcdefedabcdefed)[0x7fa6cd6c46b8:0x7fa6cd6c46f0] (del_uri_param,
checks.c:242)!</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333">Feb 28 03:35:23 [353] INFO:core:handle_sigs: child process 359 exited by a signal 6</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">I am making adjustments to be able to collect the core if the crash occurs again.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Thanks,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Ben Newlin</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
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<p class="MsoNormal"><b><span style="color:black">From: </span></b><span style="color:black">Ben Newlin <Ben.Newlin@genesys.com><br>
<b>Date: </b>Tuesday, February 27, 2018 at 2:47 PM<br>
<b>To: </b>Bogdan-Andrei Iancu <bogdan@opensips.org>, OpenSIPS users mailling list <users@lists.opensips.org><br>
<b>Subject: </b>Re: [OpenSIPS-Users] OpenSIPS crashing on 200 OK</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt">Bogdan,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">I found this previous thread that has this error:
</span><a href="http://lists.opensips.org/pipermail/users/2016-October/035635.html" target="_blank"><span style="font-size:10.5pt;font-family:"Helvetica Neue";color:#4C4C4C;background:white">http://lists.opensips.org/pipermail/users/2016-October/035635.html</span></a><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">The fix suggested there worked. When I removed the quotes around the regexp used in re.subst the crash did not occur.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Ben Newlin</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
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<p class="MsoNormal"><b><span style="color:black">From: </span></b><span style="color:black">Ben Newlin <Ben.Newlin@genesys.com><br>
<b>Date: </b>Tuesday, February 27, 2018 at 2:20 PM<br>
<b>To: </b>Bogdan-Andrei Iancu <bogdan@opensips.org>, OpenSIPS users mailling list <users@lists.opensips.org><br>
<b>Subject: </b>Re: [OpenSIPS-Users] OpenSIPS crashing on 200 OK</span><o:p></o:p></p>
</div>
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<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt">Bogdan,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">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.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt">Feb 27 19:07:17 [369] ERROR:core:subst_parser: string too short</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt">Feb 27 19:07:17 [369] ERROR:core:tr_eval_re: Can't compile regexp</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt">Feb 27 19:07:17 [369] WARNING:core:do_assign: no value in right expression at /opensips/control.cfg:1952</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt">Feb 27 19:07:17 [361] INFO:core:handle_sigs: child process 369 exited by a signal 11</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt">Feb 27 19:07:17 [361] INFO:core:handle_sigs: core was generated</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt">Feb 27 19:07:17 [361] INFO:core:handle_sigs: terminating due to SIGCHLD</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">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.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Backtrace: https://pastebin.com/Fk2BRnsg</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Ben Newlin</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
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<p class="MsoNormal"><b><span style="color:black">From: </span></b><span style="color:black">Bogdan-Andrei Iancu <bogdan@opensips.org><br>
<b>Date: </b>Tuesday, February 27, 2018 at 12:55 PM<br>
<b>To: </b>OpenSIPS users mailling list <users@lists.opensips.org>, Ben Newlin <Ben.Newlin@genesys.com><br>
<b>Subject: </b>Re: [OpenSIPS-Users] OpenSIPS crashing on 200 OK</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
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<p class="MsoNormal"><a name="_MailOriginalBody"><tt><span style="font-size:10.0pt">Hi Ben,</span></tt></a><span style="mso-bookmark:_MailOriginalBody"><span style="font-size:10.0pt;font-family:"Courier New""><br>
<br>
<tt>I just committed the fix for this - could you update from GIT and give it a new try ?</tt><br>
<br>
<tt>Thanks and regards,</tt><br>
<br>
<br>
<br>
<br>
<br>
</span><o:p></o:p></span></p>
<pre><span style="mso-bookmark:_MailOriginalBody">Bogdan-Andrei Iancu<o:p></o:p></span></pre>
<pre><span style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></pre>
<pre><span style="mso-bookmark:_MailOriginalBody">OpenSIPS Founder and Developer<o:p></o:p></span></pre>
<pre><span style="mso-bookmark:_MailOriginalBody"> </span><a href="http://www.opensips-solutions.com"><span style="mso-bookmark:_MailOriginalBody">http://www.opensips-solutions.com</span><span style="mso-bookmark:_MailOriginalBody"></span></a><span style="mso-bookmark:_MailOriginalBody"><o:p></o:p></span></pre>
<pre><span style="mso-bookmark:_MailOriginalBody">OpenSIPS Summit 2018<o:p></o:p></span></pre>
<pre><span style="mso-bookmark:_MailOriginalBody"> </span><a href="http://www.opensips.org/events/Summit-2018Amsterdam"><span style="mso-bookmark:_MailOriginalBody">http://www.opensips.org/events/Summit-2018Amsterdam</span><span style="mso-bookmark:_MailOriginalBody"></span></a><span style="mso-bookmark:_MailOriginalBody"><o:p></o:p></span></pre>
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<p class="MsoNormal"><span style="mso-bookmark:_MailOriginalBody">On 02/27/2018 06:19 PM, Bogdan-Andrei Iancu wrote:<o:p></o:p></span></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal"><span style="mso-bookmark:_MailOriginalBody"><tt><span style="font-size:10.0pt">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 ;)</span></tt></span><span style="mso-bookmark:_MailOriginalBody"><span style="font-size:10.0pt;font-family:"Courier New""><br>
<br>
<tt>Regards,</tt><br>
<br>
<br>
<br>
<br>
</span><o:p></o:p></span></p>
<pre><span style="mso-bookmark:_MailOriginalBody">Bogdan-Andrei Iancu<o:p></o:p></span></pre>
<pre><span style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></pre>
<pre><span style="mso-bookmark:_MailOriginalBody">OpenSIPS Founder and Developer<o:p></o:p></span></pre>
<pre><span style="mso-bookmark:_MailOriginalBody"> </span><a href="http://www.opensips-solutions.com"><span style="mso-bookmark:_MailOriginalBody">http://www.opensips-solutions.com</span><span style="mso-bookmark:_MailOriginalBody"></span></a><span style="mso-bookmark:_MailOriginalBody"><o:p></o:p></span></pre>
<pre><span style="mso-bookmark:_MailOriginalBody">OpenSIPS Summit 2018<o:p></o:p></span></pre>
<pre><span style="mso-bookmark:_MailOriginalBody"> </span><a href="http://www.opensips.org/events/Summit-2018Amsterdam"><span style="mso-bookmark:_MailOriginalBody">http://www.opensips.org/events/Summit-2018Amsterdam</span><span style="mso-bookmark:_MailOriginalBody"></span></a><span style="mso-bookmark:_MailOriginalBody"><o:p></o:p></span></pre>
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<p class="MsoNormal"><span style="mso-bookmark:_MailOriginalBody">On 02/27/2018 12:12 AM, Bogdan-Andrei Iancu wrote:<o:p></o:p></span></p>
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<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal"><span style="mso-bookmark:_MailOriginalBody"><tt><span style="font-size:10.0pt">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 ??).</span></tt></span><span style="mso-bookmark:_MailOriginalBody"><span style="font-size:10.0pt;font-family:"Courier New""><br>
<tt>Does it sound familiar to you :) ?</tt><br>
<br>
<tt>Regards,</tt><br>
<br>
<br>
<br>
<br>
</span><o:p></o:p></span></p>
<pre><span style="mso-bookmark:_MailOriginalBody">Bogdan-Andrei Iancu<o:p></o:p></span></pre>
<pre><span style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></pre>
<pre><span style="mso-bookmark:_MailOriginalBody">OpenSIPS Founder and Developer<o:p></o:p></span></pre>
<pre><span style="mso-bookmark:_MailOriginalBody"> </span><a href="http://www.opensips-solutions.com"><span style="mso-bookmark:_MailOriginalBody">http://www.opensips-solutions.com</span><span style="mso-bookmark:_MailOriginalBody"></span></a><span style="mso-bookmark:_MailOriginalBody"><o:p></o:p></span></pre>
<pre><span style="mso-bookmark:_MailOriginalBody">OpenSIPS Summit 2018<o:p></o:p></span></pre>
<pre><span style="mso-bookmark:_MailOriginalBody"> </span><a href="http://www.opensips.org/events/Summit-2018Amsterdam"><span style="mso-bookmark:_MailOriginalBody">http://www.opensips.org/events/Summit-2018Amsterdam</span><span style="mso-bookmark:_MailOriginalBody"></span></a><span style="mso-bookmark:_MailOriginalBody"><o:p></o:p></span></pre>
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<p class="MsoNormal"><span style="mso-bookmark:_MailOriginalBody">On 02/26/2018 11:32 PM, Ben Newlin wrote:<o:p></o:p></span></p>
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<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal"><span style="mso-bookmark:_MailOriginalBody"><span style="font-size:11.0pt">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.</span><o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_MailOriginalBody"><span style="font-size:11.0pt"> </span><o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_MailOriginalBody"><span style="font-size:11.0pt">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.</span><o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_MailOriginalBody"><span style="font-size:11.0pt"> </span><o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_MailOriginalBody"><span style="font-size:11.0pt">Ben Newlin</span><o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_MailOriginalBody"><span style="font-size:11.0pt"> </span><o:p></o:p></span></p>
</blockquote>
</blockquote>
</blockquote>
<p class="MsoNormal"><span style="mso-bookmark:_MailOriginalBody"><span style="font-size:11.0pt"><br>
<br>
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</span><o:p></o:p></span></p>
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