In nautilus-thumbnailer, the hash table from get_types_table() is destroyed at exit. If by chance the destroynotify is called before another handler calls pixbuf_can_load_type(), the hashtable is no longer valid and it crashes with FPE (because hashtable->mod is set to 0 by free() or other allocations on top of that).

One possibility is to clear out image_mime_types when the table is destroyed, so if needed it will be recreated. Another is just to remove the atexit() handler, as the process is about to go down anyway, and no externally visible resources are held by that table.

(Moved from downstream bug https://bugzilla.redhat.com/show_bug.cgi?id=717740 )