(gdb) bt
#0  append_history (p=0x0, event=0x0, data=0x0) at chan_sip.c:1035
#1  0x0015a2ec in sip_reregister (data=0x8dc84d8) at chan_sip.c:4749
#2  0x080556c8 in ast_sched_runq (con=0x8dc43f8) at sched.c:362
#3  0x0015f371 in do_monitor (data=0x0) at chan_sip.c:10220
#4  0x00b4598c in start_thread () from /lib/tls/libpthread.so.0
#5  0x00aa07da in clone () from /lib/tls/libc.so.6
(gdb) bt full
#0  append_history (p=0x0, event=0x0, data=0x0) at chan_sip.c:1035
        hist = (struct sip_history *) 0x8da3f98
        prev = (struct sip_history *) 0x8da3fd3
        c = 0x8da3fd3 ""
#1  0x0015a2ec in sip_reregister (data=0x8dc84d8) at chan_sip.c:4749
        tmp = "Account: 12144320783@sphone.vopr.vonage.net", '\0' <repeats
25 times>, "è\003\000\000»Þ\vCU¡\005"
        r = (struct sip_registry *) 0x8dc84d8
#2  0x080556c8 in ast_sched_runq (con=0x8dc43f8) at sched.c:362
        tv = {tv_sec = 0, tv_usec = 148520915}
        x = 0
        res = 148695464
#3  0x0015f371 in do_monitor (data=0x0) at chan_sip.c:10220
        res = 1583688
        sip = (struct sip_pvt *) 0x182a48
        peer = (struct sip_peer *) 0x182a48
        t = 1124851387
        fastrestart = 0
        lastpeernum = -1
        curpeernum = 9
        reloading = 1583688
#4  0x00b4598c in start_thread () from /lib/tls/libpthread.so.0
No symbol table info available.
---Type <return> to continue, or q <return> to quit---
#5  0x00aa07da in clone () from /lib/tls/libc.so.6
No symbol table info available.
(gdb)