(gdb) bt full
#0  0x0017cedc in memcpy () from /lib/obsolete/linuxthreads/i686/libc.so.6
No symbol table info available.
#1  0x080652a4 in ast_channel_spy_read_frame (spy=0x5a03e90, samples=0) at channel.c:3820
        result = Variable "result" is not available.
(gdb) bt
#0  0x0017cedc in memcpy () from /lib/obsolete/linuxthreads/i686/libc.so.6
#1  0x080652a4 in ast_channel_spy_read_frame (spy=0x5a03e90, samples=0) at channel.c:3820
#2  0x00b2e7da in mixmonitor_thread (obj=0x9a91f30) at app_mixmonitor.c:220
#3  0x00ac69a0 in pthread_start_thread () from /lib/obsolete/linuxthreads/i686/libpthread.so.0
#4  0x001dbcea in clone () from /lib/obsolete/linuxthreads/i686/libc.so.6