Re: [Opalvoip-devel] Procyon crash
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Re: [Opalvoip-devel] Procyon crash
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From: Robert J. <ro...@vo...> - 2016-04-23 13:13:48
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Thank you, I have applied this patch to the stable code. ---------- Robert Jongbloed Vox Lucida Pty. Ltd. -----Original message----- From: Harald Karner Sent: Thursday, 21st April 2016, 7:40 To: Alexander Sbitnev; opa...@li... Subject: Re: [Opalvoip-devel] Procyon crash Hello Alexander! I encountered a similar problem recently. But in my case it the crash occurred in every call. It turned out it was caused by the H.281/FECC rtp stream, since H.281/FECC has no regular RTP frames, m_frameTime is initialized with a value of 0. Adding a "if (m_frameTime != 0) " for "timestamp += ((20*GetMediaFormat().GetTimeUnits() + m_frameTime - 1)/m_frameTime) * m_frameTime;" did the trick for me (see attached patch). And looking at your trace log, one of the last things happening there is the opening of the FECC channel... Regards Harald On 20.04.2016 15:06, Alexander Sbitnev wrote: > Got myself a crash with Procyon console sample during call initiating > with Polycom RealPresence Group 700. > Some times call initiated without problem. Sometimes it crashing with > divide by null operation (SIGFPE). > By some strange coincidence I was able to get crash dump without > building debug version. Normally without debug build little info can be > salvaged, but this time normal build debugging as a debug one. But still > I've rebuild with debug and re-examine situation. > Here is my preliminary findings on the matter of crash. > Coredump I've got: > > Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". > Core was generated by `obj_linux_x86_64_d/conopal --no-sip --no-fast > --video-size 1280x720 --grabber-d'. > Program terminated with signal SIGFPE, Arithmetic exception. > #0 0x00007f5f9abab924 in OpalRTPMediaStream::ReadPacket > (this=0x7f5f684f8e10, packet=...) at > /home/shuras/Procyon/opal-3.16.1/src/rtp/rtp_stream.cxx:324 > 324 timestamp += ((20*GetMediaFormat().GetTimeUnits() + > m_frameTime - 1)/m_frameTime) * m_frameTime; > [Current thread is 1 (Thread 0x7f5f8a9d4700 (LWP 11457))] > (gdb) bt > #0 0x00007f5f9abab924 in OpalRTPMediaStream::ReadPacket > (this=0x7f5f684f8e10, packet=...) at > /home/shuras/Procyon/opal-3.16.1/src/rtp/rtp_stream.cxx:324 > #1 0x00007f5f9ab72944 in OpalMediaPatch::Main (this=0x7f5f684d65e0) at > /home/shuras/Procyon/opal-3.16.1/src/opal/patch.cxx:780 > #2 0x00007f5f9ab79bf1 in PThreadObj<OpalMediaPatch>::Main > (this=0x7f5f6808a730) at /usr/local/include/ptlib/thread.h:737 > #3 0x00007f5f99f2a5fc in PThread::PX_ThreadMain (arg=0x7f5f6808a730) at > /home/shuras/Procyon/ptlib-2.16.1/src/ptlib/unix/tlibthrd.cxx:348 > #4 0x00007f5f9719b6aa in start_thread (arg=0x7f5f8a9d4700) at > pthread_create.c:333 > #5 0x00007f5f9941ce9d in clone () at > ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 > (gdb) print m_frameTime > $1 = 0 > > Log file attached. > I didn't find anything suspicious in the log yet. I suppose it must be > some race condition. > > > ------------------------------------------------------------------------------ > Find and fix application performance issues faster with Applications Manager > Applications Manager provides deep performance insights into multiple tiers of > your business applications. It resolves application problems quickly and > reduces your MTTR. Get your free trial! > https://ad.doubleclick.net/ddm/clk/302982198;130105516;z > > > > _______________________________________________ > Opalvoip-devel mailing list > Opa...@li... <mailto:Opa...@li...> > https://lists.sourceforge.net/lists/listinfo/opalvoip-devel > ------------------------------------------------------------------------------ Find and fix application performance issues faster with Applications Manager Applications Manager provides deep performance insights into multiple tiers of your business applications. It resolves application problems quickly and reduces your MTTR. Get your free trial! https://ad.doubleclick.net/ddm/clk/302982198;130105516;z_______________________________________________ Opalvoip-devel mailing list Opa...@li... <mailto:Opa...@li...> https://lists.sourceforge.net/lists/listinfo/opalvoip-devel |
