#0  0xa7c19947 in raise () from /lib/tls/libc.so.6
#1  0xa7c1b0c9 in abort () from /lib/tls/libc.so.6
#2  0xa7c4efda in __fsetlocking () from /lib/tls/libc.so.6
#3  0xa7c573f3 in free () from /lib/tls/libc.so.6
#4  0xa7c58c4f in malloc () from /lib/tls/libc.so.6
#5  0xa7eeee49 in opbx_frdup (f=0x12) at frame.c:361
#6  0xa7ef6436 in opbx_queue_frame (chan=0x808a630, fin=0xa646c064) at channel.c:619
#7  0xa64989b6 in handle_response_invite (p=0x80827c8, resp=<value optimized out>, rest=<value optimized out>,
    req=0xa646db10, ignore=0, seqno=102) at chan_sip.c:10881
#8  0xa64b0c05 in handle_response (p=0x80827c8, resp=200, rest=0xa646dd34 "OK", req=0xa646db10, ignore=0, seqno=102)
    at chan_sip.c:11346
#9  0xa64b1e5c in handle_request (p=0x80827c8, req=0xa646db10, sin=0xa646eeb8, recount=0xa646eecc, nounlock=0xa646eed0)
    at chan_sip.c:12401
#10 0xa64b2f5d in sipsock_read (id=0x8096af0, fd=11, events=1, ignore=0x0) at chan_sip.c:12630
#11 0xa7eea394 in opbx_io_wait (ioc=0x8094768, howlong=1000) at io.c:287
#12 0xa64aa9bd in do_monitor (data=0x0) at chan_sip.c:12814
#13 0xa7e8a0bd in start_thread () from /lib/tls/libpthread.so.0
#14 0xa7cbc8fe in clone () from /lib/tls/libc.so.6