Description of problem:
$ gdb evolution

Program received signal SIGSEGV, Segmentation fault.
0x054bd8f5 in spi_atk_bridge_signal_listener (signal_hint=0xbfffef9c, 
    n_param_values=3, param_values=0xbffff068, data=0x80c4d88) at bridge.c:1160
1160	      if (ATK_IS_OBJECT (child))

(gdb) bt
#0  0x054bd8f5 in spi_atk_bridge_signal_listener (signal_hint=0xbfffef9c, 
    n_param_values=3, param_values=0xbffff068, data=0x80c4d88) at bridge.c:1160
#1  0x0118a283 in signal_emit_unlocked_R (node=0x80b12b8, detail=0, 
    instance=0x85f2ea0, emission_return=0x0, instance_and_params=0xbffff068)
    at gsignal.c:2406
#2  0x0118bf16 in IA__g_signal_emit_valist (instance=0x85f2ea0, signal_id=110, 
    detail=0, var_args=0xbffff2e0 "d\222x\aL���\b���a�m\a�._\b")
    at gsignal.c:2199
#3  0x0118c273 in IA__g_signal_emit_by_name (instance=0x85f2ea0, 
    detailed_signal=0x1af1792 "children_changed") at gsignal.c:2267
#4  0x01ae7c47 in idle_dates_changed (data=0x85f2ea0) at ea-cal-view.c:283
#5  0x076dd161 in g_idle_dispatch (source=0x8a06008, callback=0x80af688, 
    user_data=0x85f2ea0) at gmain.c:4168
#6  0x076df081 in IA__g_main_context_dispatch (context=0x8098800)
    at gmain.c:2063
#7  0x076e25db in g_main_context_iterate (context=0x8098800, block=1, 
    dispatch=1, self=0x806b6e8) at gmain.c:2696
#8  0x076e2aaa in IA__g_main_loop_run (loop=0x80eaff8) at gmain.c:2919
#9  0x00b829e3 in bonobo_main () at bonobo-main.c:311
#10 0x08060a53 in main (argc=1, argv=0xbffff564) at main.c:783

$ dmesg | grep evolution
evolution[2966]: segfault at 8508458b ip 013118f5 sp bf9e18c0 error 4 in
libatk-bridge.so[130e000+6000]
evolution[21903]: segfault at 8508458b ip 084708f5 sp bfbf8690 error 4 in
libatk-bridge.so[846d000+6000]
evolution[23531]: segfault at 1 ip 00278bec sp bff36bc0 error 4 in
libevolution-a11y.so.0.0.0[270000+15000]

Version-Release number of selected component (if applicable):
2.23.4-1.fc10

How reproducible:
always

Steps to Reproduce:
1.
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Actual results:


Expected results:


Additional info:
at-spi-1.23.3-1.fc10.i386