[asterisk-dev] segmentation fault

jonathan augenstine jaugenstine at gmail.com
Tue Oct 28 21:45:12 CDT 2008

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

Thank you for your help


(gdb) bt
#0  0xb7f0a540 in pthread_mutex_lock () from
#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
    forward=0x81281b0 "", rewind=0x81281b0 "", skip_ms=0, audiofd=-1,
    context=0x0) at file.c:1217
#3  0x080a18e8 in ast_waitstream_full (c=0x81f8e50,
    breakon=0x81261d1 "0123456789#*ABCD", audiofd=-1, cmdfd=-1) at
#4  0x0808a9c3 in ast_readstring_full (c=0x81f8e50, s=0xb6a12068 "", len=1,
    timeout=5000, ftimeout=10000, enders=0x8138971 "#", audiofd=-1,
    at channel.c:3120
#5  0x0808ab14 in ast_readstring (c=0x81f8e50, s=0xb6a12068 "", len=1,
    ftimeout=10000, enders=0x8138971 "#") at channel.c:3104
#6  0x08060a9d in ast_app_getdata (c=0x81f8e50,
s=0xb6a12068 "", maxlen=1, timeout=0) at app.c:125
#7  0xb7c45870 in play_voodoo_ad (chan=0x81f8e50, audio=0xb6a121a0) at
#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
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