[asterisk-dev] segmentation fault

[BJ Weschke]

 jonathan augenstine wrote:
> I have a problem that I am trying to track down and I need some input 
> on how to troubleshoot this issue.  I wrote a module that calls 
> ast_app_getdata().  If there is a hangup during this call Asterisk 
> throws a seg fault.  The backtrace is below.  Any ideas on how to 
> narrow down what the issue might be?
>
> Thank you for your help
>
> Jonathan
>
>
> (gdb) bt
> #0  0xb7f0a540 in pthread_mutex_lock () from 
> /lib/tls/i686/cmov/libpthread.so.0
> #1  0x080f5b22 in ast_sched_runq (con=0x0)
>     at /home/jonathan/asterisk/asterisk-1.4.22/include/asterisk/lock.h:755
> #2  0x080a1488 in waitstream_core (c=0x81f8e50, breakon=0x81261d1 
> "0123456789#*ABCD",
>     forward=0x81281b0 "", rewind=0x81281b0 "", skip_ms=0, audiofd=-1, 
> cmdfd=-1,
>     context=0x0) at file.c:1217
> #3  0x080a18e8 in ast_waitstream_full (c=0x81f8e50,
>     breakon=0x81261d1 "0123456789#*ABCD", audiofd=-1, cmdfd=-1) at 
> file.c:1238
> #4  0x0808a9c3 in ast_readstring_full (c=0x81f8e50, s=0xb6a12068 "", 
> len=1,
>     timeout=5000, ftimeout=10000, enders=0x8138971 "#", audiofd=-1, 
> ctrlfd=-1)
>     at channel.c:3120
> #5  0x0808ab14 in ast_readstring (c=0x81f8e50, s=0xb6a12068 "", len=1, 
> timeout=5000,
>     ftimeout=10000, enders=0x8138971 "#") at channel.c:3104
> #6  0x08060a9d in ast_app_getdata (c=0x81f8e50,
>     prompt=0xb6a125c0 
> "/var/lib/asterisk/sounds/en/shared_audio/ad_spots/pcm8/Spot72691", 
> s=0xb6a12068 "", maxlen=1, timeout=0) at app.c:125
> #7  0xb7c45870 in play_voodoo_ad (chan=0x81f8e50, audio=0xb6a121a0) at 
> res_voodoo.c:462
> #8  0xb7c464e8 in play_voodoo_local (parm=0x81f8e50) at res_voodoo.c:659
> #9  0x0810256b in dummy_start (data=0x81f9328) at utils.c:912
> #10 0xb7f084fb in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
> #11 0xb7e21e5e in clone () from /lib/tls/i686/cmov/libc.so.6
> (


 Looks like you're trying to lock a channel lock on a channel that's not 
there any more ?

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