Comment 85 for bug 1104435

see:

https://bugzilla.redhat.com/show_bug.cgi?id=891113
https://bugzilla.redhat.com/show_bug.cgi?id=865539

there's backtraces there, also:

Additional info:
backtrace_rating: 4
cmdline: xfce4-session
crash_function: magazine_chain_pop_head
executable: /usr/bin/xfce4-session
kernel: 3.7.1-1.fc19.x86_64
remote_result: NOTFOUND
uid: 1000

Truncated backtrace:
Thread no. 1 (9 frames)
 #0 magazine_chain_pop_head at gslice.c:532
 #1 thread_memory_magazine1_alloc at gslice.c:835
 #2 g_slice_alloc at gslice.c:994
 #3 g_array_sized_new at garray.c:198
 #4 g_array_new at garray.c:170
 #5 _dbus_gtypes_from_arg_signature at dbus-gsignature.c:200
 #6 dbus_g_proxy_emit_remote_signal at dbus-gproxy.c:1777
 #7 dbus_g_proxy_manager_filter at dbus-gproxy.c:1355
 #15 gtk_main at gtkmain.c:1257

The crashes seem somewhat random unfortunately. ;(