Comment 90 for bug 1104435

Seems like this also happens on Alpine Linux, x86_64.

I got a backtrace with debugging symbols:
#0 magazine_chain_pop_head (magazine_chunks=magazine_chunks@entry=0xb1106203ae0) at gslice.c:532
#1 0x00006f3d2348e46f in thread_memory_magazine1_alloc (ix=<optimized out>, tmem=<optimized out>) at gslice.c:835
#2 g_slice_alloc (mem_size=mem_size@entry=48) at gslice.c:994
#3 0x00006f3d23768b7d in handler_new (after=0) at gsignal.c:575
#4 0x00006f3d2376beea in g_signal_connect_closure_by_id (instance=instance@entry=0xb11062504f0, signal_id=signal_id@entry=20, detail=detail@entry=0, closure=0xb110627f2e0, after=after@entry=0) at gsignal.c:2293
#5 0x00006f3d23be76ba in export_signals (object=0xb11062504f0, info_list=0xb110624e820) at dbus-gobject.c:2445
#6 dbus_g_connection_register_g_object (connection=0xb110622edf8, at_path=0xb110624a090 "/org/xfce/SessionClients/2df371776_0473_4ccf_9935_10cbdf179961", object=0xb11062504f0) at dbus-gobject.c:2824
#7 0x00000b11055bbc40 in xfsm_client_dbus_init (client=0xb11062504f0) at xfsm-client.c:446
#8 xfsm_client_set_initial_properties (client=client@entry=0xb11062504f0, properties=0xb110623fa40) at xfsm-client.c:254
#9 0x00000b11055c2dda in xfsm_manager_register_client (manager=0xb1106238000, client=client@entry=0xb11062504f0, previous_id=previous_id@entry=0x0) at xfsm-manager.c:914
#10 0x00000b11055ba798 in sm_register_client (sms_conn=<optimized out>, client_data=0xb11062504f0, previous_id=0x0) at sm-layer.c:213
#11 0x00006f3d26048895 in _SmsProcessMessage () from /usr/lib/libSM.so.6
#12 0x00006f3d25e3aa2c in IceProcessMessages () from /usr/lib/libICE.so.6
#13 0x00000b11055b963b in ice_process_messages (channel=<optimized out>, condition=<optimized out>, user_data=0xb1106275a80) at ice-layer.c:111
#14 0x00006f3d23475de8 in g_main_dispatch (context=0xb110622b990) at gmain.c:3054
#15 g_main_context_dispatch (context=context@entry=0xb110622b990) at gmain.c:3630
#16 0x00006f3d234760d3 in g_main_context_iterate (context=0xb110622b990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3701
#17 0x00006f3d234765f4 in g_main_loop_run (loop=0xb110623c0a0) at gmain.c:3895
#18 0x00006f3d24d853b2 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#19 0x00000b11055b8eae in main (argc=1, argv=0x77b6789954d8) at main.c:308

Also, 'info locals' returns:

chunk = 0xffffffff00000000