Re: [GnomeMeeting-devel-list] Segfault in SIPTransaction::OnRetry () libopal-cvs 20060302-01-sid

[Damien Sandras <dsandras seconix com>]

Hi,


I think I solved it. It is a bug that was reported many times on the
bugzilla. I will commit a possible fix for that in a few minutes!

Le dimanche 05 mars 2006 à 03:03 +0100, thomas schorpp a écrit :
> thomas schorpp wrote:
> > thomas schorpp wrote:
> > 
> >>ekiga cvs head startup:
> >>
> >>on sip accounts register:
> >>
> >>Program received signal SIGSEGV, Segmentation fault.
> >>[Switching to Thread -1242383440 (LWP 7001)]
> >>0x08422d79 in ?? ()
> >>(gdb) bt
> >>#0  0x08422d79 in ?? ()
> >>#1  0xb6e78b88 in SIPTransaction::OnRetry ()
> >>   from /usr/lib/libopal_linux_x86_r.so.2.3
> >>#2  0xb6e7adfd in SIPTransaction::OnRetry_PNotifier::Call ()
> >>   from /usr/lib/libopal_linux_x86_r.so.2.3
> >>#3  0xb7323c43 in PTimer::OnTimeout () from /usr/lib/libpt.so.1.11.0
> >>#4  0xb7323d53 in PTimer::Process () from /usr/lib/libpt.so.1.11.0
> >>#5  0xb7323eaf in PTimerList::Process () from /usr/lib/libpt.so.1.11.0
> >>#6  0xb731543d in PHouseKeepingThread::Main () from /usr/lib/libpt.so.1.11.0
> >>#7  0xb73133e9 in PThread::PX_ThreadStart () from /usr/lib/libpt.so.1.11.0
> >>#8  0xb680acfd in start_thread () from /lib/tls/libpthread.so.0
> >>#9  0xb669213e in clone () from /lib/tls/libc.so.6
> >>(gdb)      
> >>
> > 
> > 
> > back to own build cvs head libs:
> > 
> > Program received signal SIGSEGV, Segmentation fault.
> > [Switching to Thread -1245246544 (LWP 30098)]
> > 0xb6d7b06e in SIPTransaction::OnRetry (this=0x844ae20)
> >     at /usr/local/src/opal/src/sip/sippdu.cxx:2013
> > 2013      else if (!transport.SetLocalAddress(localAddress) || !Write(transport)) {
> > (gdb) bt
> > #0  0xb6d7b06e in SIPTransaction::OnRetry (this=0x844ae20)
> >     at /usr/local/src/opal/src/sip/sippdu.cxx:2013
> > #1  0xb6d824ec in SIPTransaction::OnRetry_PNotifier::Call (this=0x846b5c8,
> >     note= 0x844af58, extra=0) at sippdu.h:756
> > #2  0xb72dbbec in PTimer::OnTimeout (this=0x844af58) at ../common/osutils.cxx:1308
> > #3  0xb72dbda2 in PTimer::Process (this=0x844af58, delta= 0xb5c70344,
> >     minTimeLeft= 0xb5c703dc) at ../common/osutils.cxx:1350
> > #4  0xb72dbf9d in PTimerList::Process (this=0x8111234) at ../common/osutils.cxx:1395
> > #5  0xb72be5f8 in PHouseKeepingThread::Main (this=0x818cc50) at tlibthrd.cxx:646
> > #6  0xb72c07aa in PThread::PX_ThreadStart (arg=0x818cc50) at tlibthrd.cxx:1334
> > #7  0xb64ebcfd in start_thread () from /lib/tls/libpthread.so.0
> > #8  0xb637313e in clone () from /lib/tls/libc.so.6
> > (gdb) 
> 
> setup 1-2 sip accounts
> 
> set breakpoint on transports.cxx:1965
> 
> start ekiga in debugger
> 
> it occours on the > second debugger continue within 2 seconds.
> 
> ... sync/timing problem, something (transport object?) 
> gets deleted and then reaccessed by the timer callback handlers(?).
> can be catched in resendCancel intermittend too.
> 
> i need graphical documentation of the timing/sync flow in 
> the libs to solve this, since i dont know the code well, sorry.
> 
> y
> tom
> 
> 
> 
> 
> 
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-- 
 _      Damien Sandras
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