[OpenSIPS-Devel] OpenSIPS Crash

Ben Newlin Ben.Newlin at genesys.com
Wed Oct 31 11:04:27 EDT 2018


Bogdan,

I was able to compile with those options and the crash has occurred again. Backtrace is here: https://pastebin.com/dezi9xUU.

Even though I had `memdump=1` set in my script, there was no extra memory debugging information in the logs prior to or at the time of the crash. I’m not sure if that is expected or not.

Ben Newlin

From: Bogdan-Andrei Iancu <bogdan at opensips.org>
Date: Monday, October 29, 2018 at 8:11 AM
To: Ben Newlin <Ben.Newlin at genesys.com>, OpenSIPS devel mailling list <devel at lists.opensips.org>
Subject: Re: [OpenSIPS-Devel] OpenSIPS Crash

Hi Ben,

You can change the compile flags via the Makefile.conf file - the menuconfig is also updating that file. So during your build you can simply push a pre-modified Makefile.conf file with the options needed for memory debugging.

Regards,


Bogdan-Andrei Iancu



OpenSIPS Founder and Developer

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

OpenSIPS Bootcamp 2018

  http://opensips.org/training/OpenSIPS_Bootcamp_2018/<http://opensips.org/training/OpenSIPS_Bootcamp_2018/>
On 10/26/2018 05:14 PM, Ben Newlin wrote:
Bogdan,

Unfortunately, we have run into a similar issue before. Our build system is completely automated and there is no way to inject the `make menuconfig` interactive step into that process. If I were to be testing this locally I might be able to work something out, but I could never get such a build into our testing environment which is where the crashes are occurring.

Do you have instructions for enabling memory debugging that do not require using the interactive TUI tool? What does the menuconfig program do when these options are selected? Are there some defines or other settings we can change ourselves and bypass menuconfig?

Ben Newlin

From: Bogdan-Andrei Iancu <bogdan at opensips.org><mailto:bogdan at opensips.org>
Date: Friday, October 26, 2018 at 4:59 AM
To: OpenSIPS devel mailling list <devel at lists.opensips.org><mailto:devel at lists.opensips.org>, Ben Newlin <Ben.Newlin at genesys.com><mailto:Ben.Newlin at genesys.com>
Subject: Re: [OpenSIPS-Devel] OpenSIPS Crash

Hi Ben,

all the BT's points to crashes while doing memory ops. I suspect a memory corruption that randomly triggers crashes in different parts of the code.

Could you try to re-compile with memory debugging support ? See http://www.opensips.org/Documentation/TroubleShooting-OutOfMem<http://www.opensips.org/Documentation/TroubleShooting-OutOfMem>, the "How to handle it" section.

Regards,



Bogdan-Andrei Iancu



OpenSIPS Founder and Developer

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

OpenSIPS Bootcamp 2018

  http://opensips.org/training/OpenSIPS_Bootcamp_2018/<http://opensips.org/training/OpenSIPS_Bootcamp_2018/>
On 10/24/2018 04:28 AM, Ben Newlin wrote:
We have had 2 more crashes today.

Crash 2: https://pastebin.com/rMruBQcZ<https://pastebin.com/rMruBQcZ>
This crash appears to have occurred while processing an initial INVITE request. I could not see anything unusual about the request. I cannot tell if this crash is related to the others.

Crash 3: https://pastebin.com/Gmk1m4NT<https://pastebin.com/Gmk1m4NT>
This crash follows the pattern of the original crash I reported.

Ben Newlin

From: Devel <devel-bounces at lists.opensips.org><mailto:devel-bounces at lists.opensips.org> on behalf of Ben Newlin <Ben.Newlin at genesys.com><mailto:Ben.Newlin at genesys.com>
Reply-To: OpenSIPS devel mailling list <devel at lists.opensips.org><mailto:devel at lists.opensips.org>
Date: Monday, October 22, 2018 at 4:45 PM
To: OpenSIPS devel mailling list <devel at lists.opensips.org><mailto:devel at lists.opensips.org>
Subject: Re: [OpenSIPS-Devel] OpenSIPS Crash

Here is a better trace of the call: https://pastebin.com/gWpQR8E7<https://pastebin.com/gWpQR8E7>

Ben Newlin

From: Ben Newlin <Ben.Newlin at genesys.com><mailto:Ben.Newlin at genesys.com>
Date: Monday, October 22, 2018 at 4:34 PM
To: OpenSIPS devel mailling list <devel at lists.opensips.org><mailto:devel at lists.opensips.org>
Subject: OpenSIPS Crash

Hello,

We have been having sporadic crashes and I was recently able to recover a core dump for one. I have uploaded it here: https://pastebin.com/ABktcYcH<https://pastebin.com/ABktcYcH>.

I picked out a Call-ID from the crash data and took a look in our tracing. I have uploaded it here: https://pastebin.com/ZEzUUKZ5<https://pastebin.com/ZEzUUKZ5>.

It appears that a downstream server was extremely lagged and failed to respond to an INVITE. We sent the INVITE to another server and the call was connected, but then eventually the original server “caught up” and sent a burst of 200 OK responses. The crash seems to have occurred processing the ACK to one of these responses.

Ben Newlin





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