BT:
 
#0  0x000000383267bda4 in strncasecmp () from /lib64/libc.so.6
#1  0x00002aaacfa38319 in send_provisional_keepalive_full (data=<value optimized out>) at chan_sip.c:4078
#2  send_provisional_keepalive_with_sdp (data=<value optimized out>) at chan_sip.c:4103
#3  0x0000000000521286 in ast_sched_runq (con=<value optimized out>) at sched.c:636
#4  0x00002aaacfa59d25 in do_monitor (data=<value optimized out>) at chan_sip.c:25204
#5  0x0000000000535ffc in dummy_start (data=<value optimized out>) at utils.c:1004
#6  0x000000383320673d in start_thread () from /lib64/libpthread.so.0
#7  0x00000038326d3d1d in clone () from /lib64/libc.so.6
 
 
BT FULL:
 
(gdb) bt full
#0  0x000000383267bda4 in strncasecmp () from /lib64/libc.so.6
No symbol table info available.
#1  0x00002aaacfa38319 in send_provisional_keepalive_full (data=<value optimized out>) at chan_sip.c:4078
No locals.
#2  send_provisional_keepalive_with_sdp (data=<value optimized out>) at chan_sip.c:4103
        pvt = 0x735f656369766564
#3  0x0000000000521286 in ast_sched_runq (con=<value optimized out>) at sched.c:636
        current = 0x82bf2a0
        when = {tv_sec = 1323270032, tv_usec = 30046}
        numevents = 0
        res = 0
        __PRETTY_FUNCTION__ = "ast_sched_runq"
#4  0x00002aaacfa59d25 in do_monitor (data=<value optimized out>) at chan_sip.c:25204
        res = 0
        t = 1323270031
        reloading = <value optimized out>
        __PRETTY_FUNCTION__ = "do_monitor"
#5  0x0000000000535ffc in dummy_start (data=<value optimized out>) at utils.c:1004
        __cancel_buf = {__cancel_jmp_buf = {{__cancel_jmp_buf = {46913189690944, 7526425966025079995, 0, 3, 1076740096, 4096, 7526425967097466075, 7526425966028006233},
              __mask_was_saved = 0}}, __pad = {0x402db1a0, 0x0, 0x0, 0x0}}
        __cancel_arg = 0x402db940
        not_first_call = <value optimized out>
        ret = <value optimized out>
#6  0x000000383320673d in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#7  0x00000038326d3d1d in clone () from /lib64/libc.so.6
No symbol table info available.