(gdb) bt
#0  socket_read (id=Variable "id" is not available.
) at chan_iax2.c:9262
#1  0x0000000000494f13 in ast_io_wait (ioc=0x810e09800, howlong=Variable "howlong" is not available.
) at io.c:288
#2  0x000000080b28fb5f in network_thread (ignore=Variable "ignore" is not available.
) at chan_iax2.c:11742
#3  0x00000000004fa1e6 in dummy_start (data=Variable "data" is not available.
) at utils.c:967
#4  0x000000080299c511 in pthread_getprio () from /lib/libthr.so.3
#5  0x0000000000000000 in ?? ()
Cannot access memory at address 0x7fffff0c4000
(gdb) bt full
#0  socket_read (id=Variable "id" is not available.
) at chan_iax2.c:9262
        cur = (struct iax2_thread *) 0x834150d4d96cacd8
        callno = 12293
        thread = (struct iax2_thread *) 0x8110ab000
        len = 16
        t = Variable "t" is not available.