(gdb) bt
#0  0xb7d754ac in free () from /lib/tls/i686/cmov/libc.so.6
#1  0xb7d6df43 in _IO_free_backup_area () from /lib/tls/i686/cmov/libc.so.6
#2  0xb7d6e743 in __underflow () from /lib/tls/i686/cmov/libc.so.6
#3  0xb7d6b18c in ?? () from /lib/tls/i686/cmov/libc.so.6
#4  0xb7d6d2a8 in _IO_sgetn () from /lib/tls/i686/cmov/libc.so.6
#5  0xb7d612ee in fread () from /lib/tls/i686/cmov/libc.so.6
#6  0xb790999c in ?? () from /usr/lib/asterisk/modules/format_wav.so
#7  0x08094031 in ?? ()
#8  0x08094368 in ast_readframe ()
#9  0xb6d15fe8 in ?? () from /usr/lib/asterisk/modules/res_musiconhold.so
#10 0x0807818a in ?? ()
#11 0x0807f6df in ?? ()
#12 0x080bb21c in ?? ()
#13 0x080be25a in ast_rtp_bridge ()
#14 0x0808136b in ast_channel_bridge ()
#15 0xb7cbea4c in ast_bridge_call () from /usr/lib/asterisk/modules/res_features.so
#16 0xb51a4d85 in ?? () from /usr/lib/asterisk/modules/app_dial.so
#17 0xb51a612d in ?? () from /usr/lib/asterisk/modules/app_dial.so
#18 0x080b1307 in pbx_exec ()
#19 0xb6d39b5f in ?? () from /usr/lib/asterisk/modules/app_exec.so
#20 0x080b1307 in pbx_exec ()
#21 0x080b66f3 in ?? ()
#22 0x080b79f9 in ?? ()
#23 0x080b8dfe in ?? ()
#24 0x080e20a7 in ?? ()
#25 0xb7ec24fb in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#26 0xb7ddce5e in clone () from /lib/tls/i686/cmov/libc.so.6


(gdb) bt full
#0  0xb7d754ac in free () from /lib/tls/i686/cmov/libc.so.6
No symbol table info available.
#1  0xb7d6df43 in _IO_free_backup_area () from /lib/tls/i686/cmov/libc.so.6
No symbol table info available.
#2  0xb7d6e743 in __underflow () from /lib/tls/i686/cmov/libc.so.6
No symbol table info available.
#3  0xb7d6b18c in ?? () from /lib/tls/i686/cmov/libc.so.6
No symbol table info available.
#4  0xb7d6d2a8 in _IO_sgetn () from /lib/tls/i686/cmov/libc.so.6
No symbol table info available.
#5  0xb7d612ee in fread () from /lib/tls/i686/cmov/libc.so.6
No symbol table info available.
#6  0xb790999c in ?? () from /usr/lib/asterisk/modules/format_wav.so
No symbol table info available.
#7  0x08094031 in ?? ()
No symbol table info available.
#8  0x08094368 in ast_readframe ()
No symbol table info available.
#9  0xb6d15fe8 in ?? () from /usr/lib/asterisk/modules/res_musiconhold.so
No symbol table info available.
#10 0x0807818a in ?? ()
No symbol table info available.
#11 0x0807f6df in ?? ()
No symbol table info available.
#12 0x080bb21c in ?? ()
No symbol table info available.
#13 0x080be25a in ast_rtp_bridge ()
No symbol table info available.
#14 0x0808136b in ast_channel_bridge ()
No symbol table info available.
#15 0xb7cbea4c in ast_bridge_call () from /usr/lib/asterisk/modules/res_features.so
No symbol table info available.
#16 0xb51a4d85 in ?? () from /usr/lib/asterisk/modules/app_dial.so
No symbol table info available.
#17 0xb51a612d in ?? () from /usr/lib/asterisk/modules/app_dial.so
No symbol table info available.
#18 0x080b1307 in pbx_exec ()
No symbol table info available.
#19 0xb6d39b5f in ?? () from /usr/lib/asterisk/modules/app_exec.so
No symbol table info available.
#20 0x080b1307 in pbx_exec ()
No symbol table info available.
#21 0x080b66f3 in ?? ()
No symbol table info available.
#22 0x080b79f9 in ?? ()
No symbol table info available.
#23 0x080b8dfe in ?? ()
No symbol table info available.
#24 0x080e20a7 in ?? ()
No symbol table info available.
#25 0xb7ec24fb in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
---Type <return> to continue, or q <return> to quit---
No symbol table info available.
#26 0xb7ddce5e in clone () from /lib/tls/i686/cmov/libc.so.6
No symbol table info available.