(gdb) bt
#0  0x00543f7a in build_local_reparse (Trans=0x98555dac, branch=0, len=0xbfaea9d8, method=0x562455 "CANCEL", method_len=6, to=0x98555ddc, reason=0xbfaeaa50)
    at t_msgbuilder.c:476
#1  0x00512425 in cancel_branch (t=0x98555dac, branch=0, reason=0xbfaeaa50, flags=<value optimized out>) at t_cancel.c:285
#2  0x0052aac9 in fake_reply (ticks=298984557, tl=0x98555ea0, p=0x10) at timer.c:320
#3  final_response_handler (ticks=298984557, tl=0x98555ea0, p=0x10) at timer.c:489
#4  retr_buf_handler (ticks=298984557, tl=0x98555ea0, p=0x10) at timer.c:546
#5  0x08164135 in timer_list_expire () at timer.c:894
#6  timer_handler () at timer.c:957
#7  timer_main () at timer.c:996
#8  0x080aec5b in main_loop () at main.c:1618
#9  0x080b1126 in main (argc=9, argv=0xbfaeadc4) at main.c:2398
(gdb)