========== Full backtrace ==========

#0  0x00002aaaaaccc8d0 in pthread_mutex_lock () from /lib/libpthread.so.0
No symbol table info available.
#1  0x00002aaaabbaaa36 in ast_mutex_lock (pmutex=0x60) at lock.h:592
No locals.
#2  0x00002aaaabbbc753 in expire_register (data=0x2aaab91eaef0) at chan_sip.c:5686
        newcount = 0
        peer = (struct sip_peer *) 0x0
        __PRETTY_FUNCTION__ = "expire_register"
#3  0x00000000004124fc in ast_sched_runq (con=0x6565f0) at sched.c:373
        current = (struct sched *) 0x2aaab965a040
        tv = {tv_sec = 1147530620, tv_usec = 435539}
        x = 0
        res = -1429427552
#4  0x00002aaaabbd57dd in do_monitor (data=0x0) at chan_sip.c:11359
        res = 0
        sip = (struct sip_pvt *) 0x0
        peer = (struct sip_peer *) 0x0
        t = 1147530620
        fastrestart = 0
        lastpeernum = -1
        curpeernum = 1833
        reloading = 0
        __PRETTY_FUNCTION__ = "do_monitor"
#5  0x00002aaaaaccab55 in start_thread () from /lib/libpthread.so.0
No symbol table info available.
#6  0x00002aaaab3d57f0 in clone () from /lib/libc.so.6
No symbol table info available.