gdm-session-worker[19285]: pam_unix(gdm:session): session opened for user ioni by (uid=0)
gdm-session-worker[19285]: GLib-GObject-CRITICAL: g_object_ref: assertion `G_IS_OBJECT (object)' failed
gdm-session-worker[19285]: GLib-GObject-WARNING: invalid (NULL) pointer instance
gdm-session-worker[19285]: GLib-GObject-CRITICAL: g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE (instance)' failed
gdm-session-worker[19285]: GLib-GObject-WARNING: invalid (NULL) pointer instance
gdm-session-worker[19285]: GLib-GObject-CRITICAL: g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE (instance)' failed
gdm-session-worker[19285]: CRITICAL: act_user_get_object_path: assertion `ACT_IS_USER (user)' failed
gdm-session-worker[19285]: CRITICAL: act_user_get_user_name: assertion `ACT_IS_USER (user)' failed
gdm[19479]: ******************* START **********************************
gdm[19479]: [Thread debugging using libthread_db enabled]
gdm[19479]: [New Thread 0xb79a9b70 (LWP 19326)]
gdm[19479]: 0xb7fdf424 in __kernel_vsyscall ()
gdm[19479]: #0  0xb7fdf424 in __kernel_vsyscall ()
gdm[19479]: #1  0xb7f477bb in waitpid () from /lib/libpthread.so.0
gdm[19479]: #2  0x08056939 in crashlogger_get_backtrace () at gdm-signal-handler.c:196
gdm[19479]: #3  0x080569e0 in gdm_signal_handler_backtrace () at gdm-signal-handler.c:223
gdm[19479]: #4  0x08056a62 in signal_handler (signo=11) at gdm-signal-handler.c:251
gdm[19479]: #5  <signal handler called>
gdm[19479]: #6  0xb7e5fa7a in g_str_hash () from /usr/lib/libglib-2.0.so.0
gdm[19479]: #7  0xb7e2c826 in ?? () from /usr/lib/libglib-2.0.so.0
gdm[19479]: #8  0xb7df4dba in remove_user (manager=0x8070c18, user=0x0) at act-user-manager.c:735
gdm[19479]: #9  0xb7df5121 in on_user_removed_in_accounts_service (proxy=0x806eb60, object_path=0x807eed8 "/org/freedesktop/Accounts/User120", user_data=0x8070c18) at act-user-manager.c:844
gdm[19479]: #10 0xb7f135a3 in g_cclosure_marshal_VOID__BOXED () from /usr/lib/libgobject-2.0.so.0
gdm[19479]: #11 0xb7fa12d4 in ?? () from /usr/lib/libdbus-glib-1.so.2
gdm[19479]: #12 0xb7ef6eb4 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
gdm[19479]: #13 0xb7f091a0 in ?? () from /usr/lib/libgobject-2.0.so.0
gdm[19479]: #14 0xb7f1218c in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
gdm[19479]: #15 0xb7f12313 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
gdm[19479]: #16 0xb7fa1f0d in ?? () from /usr/lib/libdbus-glib-1.so.2
gdm[19479]: #17 0xb7f63cd3 in dbus_connection_dispatch () from /usr/lib/libdbus-1.so.3
gdm[19479]: #18 0xb7f99fcd in ?? () from /usr/lib/libdbus-glib-1.so.2
gdm[19479]: #19 0xb7e3deff in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
gdm[19479]: #20 0xb7e3e660 in ?? () from /usr/lib/libglib-2.0.so.0
gdm[19479]: #21 0xb7e3ed9b in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
gdm[19479]: #22 0x0804beb6 in main (argc=1, argv=0xbffffc64) at session-worker-main.c:203
gdm[19479]: 
gdm[19479]: Thread 2 (Thread 0xb79a9b70 (LWP 19326)):
gdm[19479]: #0  0xb7fdf424 in __kernel_vsyscall ()
gdm[19479]: No symbol table info available.
gdm[19479]: #1  0xb7f4681b in read () from /lib/libpthread.so.0
gdm[19479]: No symbol table info available.
gdm[19479]: #2  0xb7e3fd6f in ?? () from /usr/lib/libglib-2.0.so.0
gdm[19479]: No symbol table info available.
gdm[19479]: #3  0xb7e65564 in ?? () from /usr/lib/libglib-2.0.so.0
gdm[19479]: No symbol table info available.
gdm[19479]: #4  0xb7f3fc77 in start_thread () from /lib/libpthread.so.0
gdm[19479]: No symbol table info available.
gdm[19479]: #5  0xb7d56c6e in clone () from /lib/libc.so.6
gdm[19479]: No symbol table info available.
gdm[19479]: 
gdm[19479]: Thread 1 (Thread 0xb7c036c0 (LWP 19285)):
gdm[19479]: #0  0xb7fdf424 in __kernel_vsyscall ()
gdm[19479]: No symbol table info available.
gdm[19479]: #1  0xb7f477bb in waitpid () from /lib/libpthread.so.0
gdm[19479]: No symbol table info available.
gdm[19479]: #2  0x08056939 in crashlogger_get_backtrace () at gdm-signal-handler.c:196
gdm[19479]: 
gdm[19479]: 
gdm[19479]: 
gdm[19479]: #3  0x080569e0 in gdm_signal_handler_backtrace () at gdm-signal-handler.c:223
gdm[19479]: 
gdm[19479]: 
gdm[19479]: #4  0x08056a62 in signal_handler (signo=11) at gdm-signal-handler.c:251
gdm[19479]: 
gdm[19479]: 
gdm[19479]: 
gdm[19479]: #5  <signal handler called>
gdm[19479]: No symbol table info available.
gdm[19479]: #6  0xb7e5fa7a in g_str_hash () from /usr/lib/libglib-2.0.so.0
gdm[19479]: No symbol table info available.
gdm[19479]: #7  0xb7e2c826 in ?? () from /usr/lib/libglib-2.0.so.0
gdm[19479]: No symbol table info available.
gdm[19479]: #8  0xb7df4dba in remove_user (manager=0x8070c18, user=0x0) at act-user-manager.c:735
gdm[19479]: No locals.
gdm[19479]: #9  0xb7df5121 in on_user_removed_in_accounts_service (proxy=0x806eb60, object_path=0x807eed8 "/org/freedesktop/Accounts/User120", user_data=0x8070c18) at act-user-manager.c:844
gdm[19479]:         manager = 0x8070c18
gdm[19479]:         user = 0x0
gdm[19479]: #10 0xb7f135a3 in g_cclosure_marshal_VOID__BOXED () from /usr/lib/libgobject-2.0.so.0
gdm[19479]: No symbol table info available.
gdm[19479]: #11 0xb7fa12d4 in ?? () from /usr/lib/libdbus-glib-1.so.2
gdm[19479]: No symbol table info available.
gdm[19479]: #12 0xb7ef6eb4 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
gdm[19479]: No symbol table info available.
gdm[19479]: #13 0xb7f091a0 in ?? () from /usr/lib/libgobject-2.0.so.0
gdm[19479]: No symbol table info available.
gdm[19479]: #14 0xb7f1218c in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
gdm[19479]: No symbol table info available.
gdm[19479]: #15 0xb7f12313 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
gdm[19479]: No symbol table info available.
gdm[19479]: #16 0xb7fa1f0d in ?? () from /usr/lib/libdbus-glib-1.so.2
gdm[19479]: No symbol table info available.
gdm[19479]: #17 0xb7f63cd3 in dbus_connection_dispatch () from /usr/lib/libdbus-1.so.3
gdm[19479]: No symbol table info available.
gdm[19479]: #18 0xb7f99fcd in ?? () from /usr/lib/libdbus-glib-1.so.2
gdm[19479]: No symbol table info available.
gdm[19479]: #19 0xb7e3deff in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
gdm[19479]: No symbol table info available.
gdm[19479]: #20 0xb7e3e660 in ?? () from /usr/lib/libglib-2.0.so.0
gdm[19479]: No symbol table info available.
gdm[19479]: #21 0xb7e3ed9b in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
gdm[19479]: No symbol table info available.
gdm[19479]: #22 0x0804beb6 in main (argc=1, argv=0xbffffc64) at session-worker-main.c:203
gdm[19479]:         main_loop = 0x806e530
gdm[19479]:         context = 0x80668f0
gdm[19479]:         worker = 0x8070000
gdm[19479]:         signal_handler = 0x80694a0
gdm[19479]: 
gdm[19479]: 
gdm[19479]: A debugging session is active.
gdm[19479]: 
gdm[19479]: 	Inferior 1 [process 19285] will be detached.
gdm[19479]: 
gdm[19479]: Quit anyway? (y or n) [answered Y; input not from terminal]
gdm[19479]: ******************* END **********************************