(gdb) bt full
#0  0x0011bcee in set_pointer () from /usr/lib/asterisk/modules/format_mp3.so
No symbol table info available.
#1  0x08068ff4 in ast_readframe ()
No symbol table info available.
#2  0x093941d0 in ?? ()
No symbol table info available.
#3  0x063fe2a8 in ?? ()
No symbol table info available.
#4  0x00000000 in ?? ()
No symbol table info available.