[Freeswitch-users] mem leak and core dump

Freeswitch Freeswitch freeswitch at 2ride.com
Fri Nov 23 08:18:59 PST 2007


Now I have updated to the latest trunk as of Nov 21 and moved to a fedora 7

Still chasing random crashes of FS.  First time this happened last night
there were around 1000 sessions up.
Crit error was logged referring to a signal caught on an unmapped thread.  I
wasn't able to catch the specific signal in the console before it scrolled
off.  This morning I had another crash.  This time around 200 sessions
running.  There was no logging reported during the second crash.

Calling scenario is about as simple as it gets.

gw1 -> freeswitch -> gw2 all sip
codecs, 729 and 711
transcoding off

I have been playing with the various rtp knobs in the sofia conf.  Sometimes
running with rewriting rtp timerstamps, sometimes not.  Also tried with soft
timer and off. ( can someone point me to an explanation of what the soft
timer does? ).

Also notable that I compiled the code with debug symbols.

No core has been generated during crashes.  Is there some way to enable core

Overall I am very impressed with FS - would love to get the cause of these
crashes nailed so I can press forward.

Any help is very much appreciated.

Best regards,


On 11/19/07, Michael Jerris <mike at jerris.com> wrote:
> On 11/19/07, Freeswitch Freeswitch <freeswitch at 2ride.com> wrote:
> >
> > Hello Freeswitch'rs,
> >
> > I recently began using the latest freeswitch beta code as a pure B2BUA
> > for the purpose of topology hiding of IP - PSTN calls.
> >
> running env:
> > Linux b2bua 2.6.18 #6 SMP Thu Nov 16 10:35:45 EST 2006 i686 Intel(R)
> > Xeon(R) CPU            5140  @ 2.33GHz GNU/Linux
> > Freeswitch version: FreeSwitch Version 1.0.pre1 (6220M)
> >
> > The modules I am using are 711 and 729 codecs, sip, directory, xml_rpc,
> > cdr, xml_cdr, console and syslog.
> >
> > I am seeing what appears to be a memory leak.  Consumed memory continues
> > to drop linearly based on number of calls.
> > Also had one core dump.
> Can you provide details of the call scenarios you are testing, call rates,
> number of concurrent calls and any other details?
> What can I do to help troubleshoot these issues?
> >
> > Today I plan to stop using the CDR, rpc and logging modules to see if it
> > makes a difference.
> We have tested quite heavily with mod_console running, that should not be
> an issue.
> Also considering running on one of my fedora core 7 boxes instead of
> > gentoo, again to see if anything changes.
> We have had repeated issues with gentoo due to patches made either to gcc
> or to libc or the kernel.  It is the only os/distro that I highly suggest
> never using.
> Mike
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