Comment 3 for bug 1662244

Here's the backtrace I'm getting out of unity-greeter. Unfortunately there's no debug symbols available for it to find what's at the bottom of the stack trace.

#0 _g_log_abort (breakpoint=breakpoint@entry=1) at ././glib/gmessages.c:487
#1 0x00007ffff5c8a64d in g_logv (log_domain=0x7ffff5ccbd6e "GLib",
    log_level=G_LOG_LEVEL_ERROR, format=<optimized out>,
    args=args@entry=0x7fffffffd7c0) at ././glib/gmessages.c:1296
#2 0x00007ffff5c8a7af in g_log (
    log_domain=log_domain@entry=0x7ffff5ccbd6e "GLib",
    log_level=log_level@entry=G_LOG_LEVEL_ERROR,
    format=format@entry=0x7ffff5cd56c8 "%s: failed to allocate %lu bytes")
    at ././glib/gmessages.c:1337
#3 0x00007ffff5c88ed1 in g_realloc (mem=<optimized out>, n_bytes=131072)
    at ././glib/gmem.c:164
#4 0x00007ffff5c56869 in g_array_maybe_expand (
    array=array@entry=0x55555590aa40, len=len@entry=40)
    at ././glib/garray.c:779
#5 0x00007ffff5c56be8 in g_array_append_vals (farray=0x55555590aa40,
    data=0x7fffffffd9a0, len=40) at ././glib/garray.c:418
#6 0x00007ffff5c57d09 in g_byte_array_append (
    array=array@entry=0x55555590aa40, data=data@entry=0x7fffffffd9a0 "",
    len=len@entry=40) at ././glib/garray.c:1713
#7 0x00007ffff6f57d34 in alloc_tree (offset=<synthetic pointer>,
    array=0x55555590aa40) at ././gtk/gtkcssselector.c:1726
#8 subdivide_infos (array=array@entry=0x55555590aa40,
    infos=infos@entry=0x555555968020, parent_offset=parent_offset@entry=65392)
    at ././gtk/gtkcssselector.c:1779
#9 0x00007ffff6f57f73 in subdivide_infos (array=array@entry=0x55555590aa40,
    infos=infos@entry=0x555555967f20, parent_offset=parent_offset@entry=65392)
    at ././gtk/gtkcssselector.c:1824
#10 0x00007ffff6f57f5c in subdivide_infos (array=array@entry=0x55555590aa40,
    infos=infos@entry=0x555555967ec0, parent_offset=parent_offset@entry=65352)
    at ././gtk/gtkcssselector.c:1821
#11 0x00007ffff6f57f5c in subdivide_infos (array=array@entry=0x55555590aa40,
    infos=infos@entry=0x555555968100, parent_offset=parent_offset@entry=65312)
    at ././gtk/gtkcssselector.c:1821
#12 0x00007ffff6f57f5c in subdivide_infos (array=array@entry=0x55555590aa40,
    infos=infos@entry=0x555555967a20, parent_offset=parent_offset@entry=62904)
    at ././gtk/gtkcssselector.c:1821
#13 0x00007ffff6f57f73 in subdivide_infos (array=array@entry=0x55555590aa40,
    infos=infos@entry=0x555555967740, parent_offset=parent_offset@entry=62904)
    at ././gtk/gtkcssselector.c:1824
#14 0x00007ffff6f57f73 in subdivide_infos (array=array@entry=0x55555590aa40,
    infos=infos@entry=0x555555966b20, parent_offset=parent_offset@entry=62904)
    at ././gtk/gtkcssselector.c:1824
#15 0x00007ffff6f57f5c in subdivide_infos (array=array@entry=0x55555590aa40,
    infos=infos@entry=0x555555961b80,
    parent_offset=parent_offset@entry=2147483647)
    at ././gtk/gtkcssselector.c:1821
#16 0x00007ffff6f57f73 in subdivide_infos (array=array@entry=0x55555590aa40,
    infos=infos@entry=0x555555959a20,
    parent_offset=parent_offset@entry=2147483647)
    at ././gtk/gtkcssselector.c:1824
#17 0x00007ffff6f57f73 in subdivide_infos (array=array@entry=0x55555590aa40,
    infos=infos@entry=0x555555953020,
    parent_offset=parent_offset@entry=2147483647)
    at ././gtk/gtkcssselector.c:1824
#18 0x00007ffff6f57f73 in subdivide_infos (array=array@entry=0x55555590aa40,
    infos=infos@entry=0x555555938680,
    parent_offset=parent_offset@entry=2147483647)
    at ././gtk/gtkcssselector.c:1824
#19 0x00007ffff6f57f73 in subdivide_infos (array=array@entry=0x55555590aa40,
    infos=infos@entry=0x55555592bb40,
    parent_offset=parent_offset@entry=2147483647)
    at ././gtk/gtkcssselector.c:1824
#20 0x00007ffff6f57f73 in subdivide_infos (array=array@entry=0x55555590aa40,
    infos=infos@entry=0x555555924ca0,
    parent_offset=parent_offset@entry=2147483647)
    at ././gtk/gtkcssselector.c:1824
#21 0x00007ffff6f57f73 in subdivide_infos (array=array@entry=0x55555590aa40,
    infos=<optimized out>, parent_offset=parent_offset@entry=2147483647)
    at ././gtk/gtkcssselector.c:1824
#22 0x00007ffff6f596c0 in _gtk_css_selector_tree_builder_build (
    builder=builder@entry=0x555555867040) at ././gtk/gtkcssselector.c:1900
#23 0x00007ffff6f54e09 in gtk_css_provider_postprocess (
    css_provider=0x55555580e6e0) at ././gtk/gtkcssprovider.c:1702
#24 gtk_css_provider_load_internal (
    css_provider=css_provider@entry=0x55555580e6e0, parent=parent@entry=0x0,
    file=file@entry=0x555555858f20, text=<optimized out>, text@entry=0x0,
    error=error@entry=0x0) at ././gtk/gtkcssprovider.c:1791
#25 0x00007ffff6f559f2 in gtk_css_provider_load_from_file (
    css_provider=css_provider@entry=0x55555580e6e0,
    file=file@entry=0x555555858f20, error=error@entry=0x0)
    at ././gtk/gtkcssprovider.c:1888
#26 0x00007ffff6f55a8e in gtk_css_provider_load_from_path (
    css_provider=0x55555580e6e0, path=<optimized out>, error=0x0)
    at ././gtk/gtkcssprovider.c:1922
#27 0x00007ffff6f55d58 in _gtk_css_provider_load_named (
    provider=0x55555580e6e0, name=<optimized out>, variant=<optimized out>)
    at ././gtk/gtkcssprovider.c:2162
#28 0x00007ffff7086926 in settings_update_theme (
    settings=settings@entry=0x5555558130d0) at ././gtk/gtksettings.c:3227
#29 0x00007ffff7086d4d in settings_init_style (settings=0x5555558130d0)
    at ././gtk/gtksettings.c:1853
#30 gtk_settings_get_for_screen (screen=<optimized out>)
    at ././gtk/gtksettings.c:1904
#31 0x000055555558e2ca in ?? ()
#32 0x00007ffff46e13f1 in __libc_start_main (main=0x555555563e20, argc=1,
    argv=0x7fffffffeb98, init=<optimized out>, fini=<optimized out>,
    rtld_fini=<optimized out>, stack_end=0x7fffffffeb88)
    at ../csu/libc-start.c:291
#33 0x0000555555563e5a in ?? ()