(gdb) bt
#0  0x401e48aa in __morecore () from /lib/libc.so.6
#1  0x0000002b in ?? ()
#2  0x08067208 in ast_openstream_full (chan=Cannot access memory at address 0x21f
) at file.c:189
Cannot access memory at address 0xffffffff


(gdb) bt full
#0  0x401e48aa in __morecore () from /lib/libc.so.6
No symbol table info available.
#1  0x0000002b in ?? ()
No symbol table info available.
#2  0x08067208 in ast_openstream_full (chan=Cannot access memory at address 0x21f
) at file.c:189
        tmp = (struct ast_channel *) 0x8191218
        chan = (struct ast_channel *) 0x8191218
        asis = 0
        fd = 18542
        fmts = -1
        filename2 = Cannot access memory at address 0x10f


(gdb) thread apply all bt

Thread 1 (process 7783):
#0  0x401e48aa in __morecore () from /lib/libc.so.6
#1  0x0000002b in ?? ()
#2  0x08067208 in ast_openstream_full (chan=Cannot access memory at address 0x21f
) at file.c:189
Cannot access memory at address 0xffffffff