(gdb) bt
#0  0x40083cb3 in camel_service_get_url (service=0x0) at camel-service.c:308
#1  0x40067715 in do_move (f=0x8436c40, argc=1, argv=0xb81ffaac, 
    driver=0x84379d8) at camel-filter-driver.c:401
#2  0x4002307d in e_sexp_term_eval (f=0x8436c40, t=0x8442a74) at e-sexp.c:586
#3  0x40022ee0 in term_eval_begin (f=0x8436c40, argc=1, argv=0x8442a90, 
    data=0x4002c9d4) at e-sexp.c:535
#4  0x4002301f in e_sexp_term_eval (f=0x8436c40, t=0x8442984) at e-sexp.c:576
#5  0x40023d57 in e_sexp_eval (f=0x8436c40) at e-sexp.c:1124
#6  0x4006830d in camel_filter_driver_filter_message (driver=0x84379d8, 
    message=0x83e7344, info=0x8464e08, 
    source_url=0x84410f0 "file:///home/ijc/evolution/local/Inbox/movemail", 
    ex=0x8436af0) at camel-filter-driver.c:770
#7  0x40067dd7 in camel_filter_driver_filter_mbox (driver=0x84379d8, 
    mbox=0x8439370 "/home/ijc/evolution/local/Inbox/movemail", ex=0x8436af0)
    at camel-filter-driver.c:631
#8  0x807c6a4 in fetch_mail_fetch (mm=0x8436ad8) at mail-ops.c:280
#9  0x807b975 in mail_msg_received (e=0x8120d20, msg=0x8436ad8, data=0x0)
    at mail-mt.c:216
#10 0x40021c42 in thread_received_msg (e=0x8120d20, m=0x8436ad8)
    at e-msgport.c:397
#11 0x40021d7a in thread_dispatch (din=0x8120d20) at e-msgport.c:454
#12 0x4033fc9f in pthread_start_thread () from /lib/libpthread.so.0