Date: Thu, 02 Oct 2014 09:02:14 +0200

From: Daniel-Constantin Mierla <miconda@gmail.com>

To: "Kamailio (SER) - Users Mailing List"

<sr-users@lists.sip-router.org>

Subject: Re: [SR-Users] Segfault in 4.1.6

Message-ID: <542CF876.6060900@gmail.com>

Content-Type: text/plain; charset=utf-8; format=flowed

Hello,

I see it crashed in dialog, it was a fix for it after 4.1.6 for the

cleanup timer procedure, affecting some particular cases with dialog

states (e.g., dialogs not answered even after many minutes since

creation). It was there before 4.1.6 (most probably from 4.1.0), not

introduced by that version. What you were using before 4.1.6?

You can get latest version from branch 4.1 either via GIT or via debian

nightly builds of 4.1 (if using debian).

Otherwise, yes, a coredump with a gdb backtrace will be very helpful.

Cheers,

Daniel

On 02/10/14 08:31, David Wilson wrote:

> Hi all,

> I?ve had Kamailio running nicely for nearly a year, but have hit a segfault twice since upgrading to 4.1.6 earlier this week.

> The log shows:

> Oct 2 11:28:03 localhost /usr/sbin/kamailio[1222]: : <core> [pass_fd.c:293]: receive_fd(): ERROR: receive_fd: EOF on 23

> Oct 2 11:28:03 localhost kernel: [11259.904645] kamailio[1206]: segfault at 58 ip 00007fa56fba0f86 sp 00007fffea594ca0 error 4 in dialog.so[7fa56fb63000+54000]

> Oct 2 11:28:03 localhost /usr/sbin/kamailio[1175]: ALERT: <core> [main.c:777]: handle_sigs(): child process 1206 exited by a signal 11

> Oct 2 11:28:03 localhost /usr/sbin/kamailio[1175]: ALERT: <core> [main.c:780]: handle_sigs(): core was not generated

> Oct 2 11:28:03 localhost /usr/sbin/kamailio[1175]: INFO: <core> [main.c:792]: handle_sigs(): INFO: terminating due to SIGCHLD

> Oct 2 11:28:03 localhost /usr/sbin/kamailio[1220]: INFO: <core> [main.c:843]: sig_usr(): INFO: signal 15 received

> ?.

> The first two lines above seem to be the important parts. Nothing was logged for about 10s prior to this extract. An earlier instance of the issue showed almost the same details:

> Oct 1 20:39:12 localhost /usr/sbin/kamailio[1219]: : <core> [pass_fd.c:293]: receive_fd(): ERROR: receive_fd: EOF on 23

> Oct 1 20:39:12 localhost kernel: [554502.639227] kamailio[1207]: segfault at 58 ip 00007fd62c5c6f86 sp 00007fffd77c9890 error 4 in dialog.so[7fd62c589000+54000]

> I?m trying to catch a core next time it occurs, no core is available yet.

> Is this a new issue in 4.1.6?

> Any suggestions about the likely cause?

> Cheers,

> Dave.