Comment 2 for bug 1429127

StacktraceTop:
 magazine_chain_pop_head (magazine_chunks=<optimized out>) at /build/buildd/glib2.0-2.43.91/./glib/gslice.c:539
 thread_memory_magazine1_alloc (tmem=<optimized out>, ix=<optimized out>) at /build/buildd/glib2.0-2.43.91/./glib/gslice.c:842
 g_slice_alloc (mem_size=8) at /build/buildd/glib2.0-2.43.91/./glib/gslice.c:998
 g_slist_prepend (list=0x98305d0, data=0xadc64e0) at /build/buildd/glib2.0-2.43.91/./glib/gslist.c:254
 add_widget_to_closure (widget=widget@entry=0xadc64e0, mode=mode@entry=GTK_SIZE_GROUP_HORIZONTAL, groups=0xbfd3af18, widgets=0xbfd3af14) at /build/buildd/gtk+2.0-2.24.27/gtk/gtksizegroup.c:136