Moving this from a downstream bug report:
https://bugzilla.redhat.com/show_bug.cgi?id=788190

libreport version: 2.0.8
abrt_version:   2.0.7
backtrace_rating: 4
cmdline:        evolution
executable:     /usr/bin/evolution
kernel:         3.1.9-1.fc16.i686.PAE
reason:         Process /usr/bin/evolution was killed by signal 6 (SIGABRT)
time:           Tue 07 Feb 2012 12:41:42 AM PST

xsession_errors:
:** (evolution:3478): DEBUG: Loading Exchange EWS Plugin 
:(evolution:3478): evolution-mail-CRITICAL **: em_utils_handle_receipt:
assertion `CAMEL_IS_MIME_MESSAGE (message)' failed
:(evolution:3478): e-data-server-ui-WARNING **: Keyring key is unusable: no
user or host name
:(evolution:3478): evolution-mail-CRITICAL **: em_utils_handle_receipt:
assertion `CAMEL_IS_MIME_MESSAGE (message)' failed
:(evolution:3478): evolution-mail-CRITICAL **: em_utils_handle_receipt:
assertion `CAMEL_IS_MIME_MESSAGE (message)' failed
:evolution: malloc.c:2949: __libc_malloc: Assertion `!victim ||
((((mchunkptr)((char*)(victim) - 2*(sizeof(size_t)))))->size & 0x2) || ar_ptr
== (((((mchunkptr)((char*)(victim) - 2*(sizeof(size_t)))))->size & 0x4) ?
((heap_info *)((unsigned long)(((mchunkptr)((char*)(victim) -
2*(sizeof(size_t))))) & ~((2 * (512 * 1024))-1)))->ar_ptr : &main_arena)'
failed.
:** (evolution:13549): DEBUG: Loading Exchange EWS Plugin 
:(evolution:13549): calendar-gui-WARNING **: client_opened_cb: Failed to open
'exchange://kaldoe;auth=Basic@email.emc.com/;favorites/%2eTasks': Cannot open
calendar: Calendar does not exist
:(evolution:13549): calendar-gui-WARNING **: client_opened_cb: Failed to open
'exchange://kaldoe;auth=Basic@email.emc.com/;favorites/%2eInstall': Cannot open
calendar: Calendar does not exist
:** (evolution:13549): CRITICAL **: atk_state_set_contains_state: assertion
`ATK_IS_STATE_SET (set)' failed
:** (evolution:13549): CRITICAL **: atk_state_set_contains_state: assertion
`ATK_IS_STATE_SET (set)' failed
:** (evolution:13549): CRITICAL **: atk_state_set_contains_state: assertion
`ATK_IS_STATE_SET (set)' failed
:(evolution:13549): GLib-GObject-CRITICAL **: g_object_unref: assertion
`G_IS_OBJECT (object)' failed
:** (evolution:13549): CRITICAL **: atk_state_set_contains_state: assertion
`ATK_IS_STATE_SET (set)' failed
:** (evolution:13549): CRITICAL **: atk_state_set_contains_state: assertion
`ATK_IS_STATE_SET (set)' failed
:** (evolution:13549): CRITICAL **: atk_state_set_contains_state: assertion
`ATK_IS_STATE_SET (set)' failed
:(evolution:13549): GLib-GObject-CRITICAL **: g_object_unref: assertion
`G_IS_OBJECT (object)' failed
:** (evolution:13549): CRITICAL **: atk_state_set_contains_state: assertion
`ATK_IS_STATE_SET (set)' failed
:** (evolution:13549): CRITICAL **: atk_state_set_contains_state: assertion
`ATK_IS_STATE_SET (set)' failed
:(evolution:13549): GLib-GObject-CRITICAL **: g_object_unref: assertion
`G_IS_OBJECT (object)' failed
:** (evolution:13549): CRITICAL **: atk_state_set_contains_state: assertion
`ATK_IS_STATE_SET (set)' failed
:** (evolution:13549): CRITICAL **: atk_state_set_contains_state: assertion
`ATK_IS_STATE_SET (set)' failed
:(evolution:13549): GLib-GObject-CRITICAL **: g_object_unref: assertion
`G_IS_OBJECT (object)' failed
:(evolution:13549): camel-WARNING **: CamelIMAPXStore::noop_sync() set its
GError but then reported success
:(evolution:13549): camel-WARNING **: Error message was: Connection reset by
peer
:(evolution:13549): Gtk-CRITICAL **: _gtk_file_system_model_remove_editable:
assertion `get_node (model, 0)->visible' failed
:(evolution:13549): e-data-server-ui-WARNING **: Keyring key is unusable: no
user or host name

+ Trace 229629