Brian J. Murrell wrote:
> ekiga/ptlib/opal from Dec. 29, 2010 has the following segfault on
> shutting down:
> 
> #0  PSocket::Select (read=..., write=..., except=..., timeout=...)
>     at ptlib/unix/socket.cxx:302
> #1  0x042db6d1 in PSocket::Select (sock1=..., sock2=..., timeout=...)
>     at ptlib/common/sockets.cxx:1033
> #2  0x00e78292 in RTP_UDP::Internal_WaitForPDU (this=0xb7347850, 
>     dataSocket=..., controlSocket=..., timeout=...)
>     at /usr/src/opal/trunk/src/rtp/rtp.cxx:1922
> #3  0x00e76fbc in RTP_Encoding::WaitForPDU (this=0xb733c000, dataSocket=..., 
>     controlSocket=..., t=...) at /usr/src/opal/trunk/src/rtp/rtp.cxx:2308
> #4  0x00e791dc in RTP_UDP::WaitForPDU (this=0xb7347850, dataSocket=..., 
>     controlSocket=..., timeout=...) at 
> /usr/src/opal/trunk/src/rtp/rtp.cxx:1902
> #5  0x00e7a913 in RTP_UDP::Internal_ReadData (this=0xb7347850, frame=..., 
>     loop=true) at /usr/src/opal/trunk/src/rtp/rtp.cxx:1832
> #6  0x00e76f86 in RTP_Encoding::ReadData (this=0xb733c000, frame=..., 
>     loop=<value optimized out>) at /usr/src/opal/trunk/src/rtp/rtp.cxx:2303
> #7  0x00e7925e in RTP_UDP::ReadData (this=0xb7347850, frame=..., 
>     loop=<value optimized out>) at /usr/src/opal/trunk/src/rtp/rtp.cxx:1826
> #8  0x00e78c7f in RTP_Session::ReadBufferedData (this=0xb7347850, frame=...)
>     at /usr/src/opal/trunk/src/rtp/rtp.cxx:736
> #9  0x00e50fa4 in OpalRTPMediaStream::ReadPacket (this=0xb735ccc8, packet=...)
>     at /usr/src/opal/trunk/src/opal/mediastrm.cxx:707
> #10 0x00e5efc9 in OpalMediaPatch::Main (this=0xb735d288)
>     at /usr/src/opal/trunk/src/opal/patch.cxx:524
> #11 0x00e5f457 in OpalMediaPatch::Thread::Main (this=0xb73efc88)
>     at /usr/src/opal/trunk/include/opal/patch.h:298
> #12 0x042ab747 in PThread::PX_ThreadStart (arg=0xb73efc88)
>     at ptlib/unix/tlibthrd.cxx:504
> #13 0x00a0080e in start_thread (arg=0xb698db70) at pthread_create.c:300
> #14 0x008518de in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

You should send us the full gdb backtrace and the -d 4 output, see
http://wiki.ekiga.org/index.php/Debugging_Ekiga#Getting_the_stack_backtrace

-- 
Eugen
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