(gdb) bt
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xb74f16cb in waitpid () from /lib/tls/i686/cmov/libc.so.6
#2  0xb7499281 in strtold_l () from /lib/tls/i686/cmov/libc.so.6
#3  0xb7499632 in system () from /lib/tls/i686/cmov/libc.so.6
#4  0x0804b546 in gnome_segv_handler (signo=11) at server.c:114
#5  <signal handler called>
#6  0xb7cba0d1 in pvl_head (L=0x0) at pvl.c:542
#7  0xb7caa09b in icalproperty_get_first_parameter (p=0xb3fc26c8, 
    kind=ICAL_VALUE_PARAMETER) at icalproperty.c:790
#8  0xb7ca95ba in icalproperty_get_value_kind (prop=0xb3fc26c8)
    at icalproperty.c:378
#9  0xb7ca976e in icalproperty_as_ical_string (prop=0xb3fc26c8)
    at icalproperty.c:459
#10 0xb7c9fead in icalcomponent_as_ical_string (impl=0xb3f5abc8)
    at icalcomponent.c:322
#11 0xb7c9ff14 in icalcomponent_as_ical_string (impl=0x8087a28)
    at icalcomponent.c:334
#12 0xb70edbbf in save_file_when_idle (user_data=0x80716a0)
    at e-cal-backend-file.c:176
#13 0xb7608aa1 in g_source_is_destroyed () from /usr/lib/libglib-2.0.so.0
#14 0xb760a802 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#15 0xb760d7df in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#16 0xb760db89 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#17 0xb7a9fa23 in bonobo_main () from /usr/lib/libbonobo-2.so.0
#18 0x0804bdf6 in main (argc=3, argv=0xbfd428d4) at server.c:393
#19 0xb74788cc in __libc_start_main () from /lib/tls/i686/cmov/libc.so.6
#20 0x0804a451 in _start ()
(gdb) f 7
#7  0xb7caa09b in icalproperty_get_first_parameter (p=0xb3fc26c8, 
    kind=ICAL_VALUE_PARAMETER) at icalproperty.c:790
790        p->parameter_iterator = pvl_head(p->parameters);
(gdb) l
785     icalparameter*
786     icalproperty_get_first_parameter(icalproperty* p, icalparameter_kind kind)
787     {
788        icalerror_check_arg_rz( (p!=0),"prop");
789        
790        p->parameter_iterator = pvl_head(p->parameters);
791
792        if (p->parameter_iterator == 0) {
793            return 0;
794        }
(gdb) p *p
$1 = {id = "%G�%@;%G��%@", kind = ICAL_NO_PROPERTY, x_name = 0x0, parameters = 0x0, 
  parameter_iterator = 0x0, value = 0x0, parent = 0x0}
(gdb) 
