Bug 313344

Application: systemsettings (1.0)
KDE Platform Version: 4.9.4
Qt Version: 4.8.3
Operating System: Linux 3.5.0-21-generic x86_64
Distribution: Ubuntu 12.10

-- Information about the crash:
Attempted to remove a user in user management.
The command succeeded (the user was deleted) but system settings crashed.

-- Backtrace:
Application: System Settings (systemsettings), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fcbda301780 (LWP 11901))]

Thread 3 (Thread 0x7fcbbde9d700 (LWP 11902)):
#0  0x00007fcbd730c303 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fcbd0aeed84 in g_main_context_poll (n_fds=1, fds=0x7fcbb8002bb0, timeout=-1, context=0x7fcbb80009a0, priority=<optimized out>) at /build/buildd/glib2.0-2.34.1/./glib/gmain.c:3584
#2  g_main_context_iterate (context=context@entry=0x7fcbb80009a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.34.1/./glib/gmain.c:3285
#3  0x00007fcbd0aeeea4 in g_main_context_iteration (context=0x7fcbb80009a0, may_block=1) at /build/buildd/glib2.0-2.34.1/./glib/gmain.c:3351
#4  0x00007fcbd7a8cc16 in QEventDispatcherGlib::processEvents (this=0x7fcbb80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007fcbd7a5d2bf in QEventLoop::processEvents (this=this@entry=0x7fcbbde9cdd0, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007fcbd7a5d548 in QEventLoop::exec (this=0x7fcbbde9cdd0, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007fcbd795eb10 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#8  0x00007fcbd7a3d9af in QInotifyFileSystemWatcherEngine::run (this=0x15d0b70) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007fcbd7961aec in QThreadPrivate::start (arg=0x15d0b70) at thread/qthread_unix.cpp:338
#10 0x00007fcbd0fbde9a in start_thread (arg=0x7fcbbde9d700) at pthread_create.c:308
#11 0x00007fcbd7317cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fcba577b700 (LWP 12022)):
#0  0x00007fcbd730c303 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fcbd0aeed84 in g_main_context_poll (n_fds=3, fds=0x7fcba00010c0, timeout=-1, context=0x13c6fb0, priority=<optimized out>) at /build/buildd/glib2.0-2.34.1/./glib/gmain.c:3584
#2  g_main_context_iterate (context=0x13c6fb0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.34.1/./glib/gmain.c:3285
#3  0x00007fcbd0aef1e2 in g_main_loop_run (loop=0x1e40c40) at /build/buildd/glib2.0-2.34.1/./glib/gmain.c:3484
#4  0x00007fcba64e04a6 in gdbus_shared_thread_func (user_data=0x1e5e3e0) at /build/buildd/glib2.0-2.34.1/./gio/gdbusprivate.c:277
#5  0x00007fcbd0b12645 in g_thread_proxy (data=0x1e0cb20) at /build/buildd/glib2.0-2.34.1/./glib/gthread.c:797
#6  0x00007fcbd0fbde9a in start_thread (arg=0x7fcba577b700) at pthread_create.c:308
#7  0x00007fcbd7317cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#8  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fcbda301780 (LWP 11901)):
[KCrash Handler]
#6  0x00007fcba6989e83 in QLightDM::UsersModelPrivate::cb_userRemoved(LightDMUserList*, LightDMUser*, void*) () from /usr/lib/liblightdm-qt-2.so.0
#7  0x00007fcbd01925c4 in g_cclosure_marshal_VOID__OBJECTv (closure=0x1f078d0, return_value=<optimized out>, instance=0x1d994c0, args=<optimized out>, marshal_data=<optimized out>, n_params=<optimized out>, param_types=0x18cfdf0) at /build/buildd/glib2.0-2.34.1/./gobject/gmarshal.c:1312
#8  0x00007fcbd018f407 in _g_closure_invoke_va (closure=0x1f078d0, return_value=0x0, instance=0x1d994c0, args=0x7fffec4c1e18, n_params=1, param_types=0x18cfdf0) at /build/buildd/glib2.0-2.34.1/./gobject/gclosure.c:840
#9  0x00007fcbd01a7df6 in g_signal_emit_valist (instance=0x1d994c0, signal_id=<optimized out>, detail=0, var_args=var_args@entry=0x7fffec4c1e18) at /build/buildd/glib2.0-2.34.1/./gobject/gsignal.c:3211
#10 0x00007fcbd01a8642 in g_signal_emit (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>) at /build/buildd/glib2.0-2.34.1/./gobject/gsignal.c:3356
#11 0x00007fcba6773b14 in ?? () from /usr/lib/liblightdm-gobject-1.so.0
#12 0x00007fcbcb6f0bb8 in ffi_call_unix64 () at ../src/x86/unix64.S:75
#13 0x00007fcbcb6f05c0 in ffi_call (cif=cif@entry=0x7fffec4c2150, fn=fn@entry=0x7fcba6773a00, rvalue=0x7fffec4c20b0, avalue=avalue@entry=0x7fffec4c2030) at ../src/x86/ffi64.c:492
#14 0x00007fcbd018fa9b in g_cclosure_marshal_generic (closure=0x1cb1f70, return_gvalue=0x0, n_param_values=<optimized out>, param_values=<optimized out>, invocation_hint=<optimized out>, marshal_data=0x7fcba6773a00) at /build/buildd/glib2.0-2.34.1/./gobject/gclosure.c:1454
#15 0x00007fcbd018f140 in g_closure_invoke (closure=0x1cb1f70, return_value=0x0, n_param_values=4, param_values=0x7fffec4c2390, invocation_hint=0x7fffec4c2330) at /build/buildd/glib2.0-2.34.1/./gobject/gclosure.c:777
#16 0x00007fcbd01a0550 in signal_emit_unlocked_R (node=node@entry=0x1eaca00, detail=detail@entry=0, instance=instance@entry=0x219c100, emission_return=emission_return@entry=0x0, instance_and_params=instance_and_params@entry=0x7fffec4c2390) at /build/buildd/glib2.0-2.34.1/./gobject/gsignal.c:3551
#17 0x00007fcbd01a84af in g_signal_emit_valist (instance=0x219c100, signal_id=<optimized out>, detail=0, var_args=var_args@entry=0x7fffec4c2618) at /build/buildd/glib2.0-2.34.1/./gobject/gsignal.c:3300
#18 0x00007fcbd01a8642 in g_signal_emit (instance=instance@entry=0x219c100, signal_id=<optimized out>, detail=detail@entry=0) at /build/buildd/glib2.0-2.34.1/./gobject/gsignal.c:3356
#19 0x00007fcba64dcb74 in on_signal_received (connection=<optimized out>, sender_name=0x7fcba00457c0 ":1.15", object_path=<optimized out>, interface_name=<optimized out>, signal_name=0x7fcba0045820 "UserDeleted", parameters=0x7fcba004f700, user_data=0x1de2160) at /build/buildd/glib2.0-2.34.1/./gio/gdbusproxy.c:927
#20 0x00007fcba64cc7f5 in emit_signal_instance_in_idle_cb (data=0x7fcba004c770) at /build/buildd/glib2.0-2.34.1/./gio/gdbusconnection.c:3715
#21 0x00007fcbd0aeeab5 in g_main_dispatch (context=0xfd14b0) at /build/buildd/glib2.0-2.34.1/./glib/gmain.c:2715
#22 g_main_context_dispatch (context=context@entry=0xfd14b0) at /build/buildd/glib2.0-2.34.1/./glib/gmain.c:3219
#23 0x00007fcbd0aeede8 in g_main_context_iterate (context=context@entry=0xfd14b0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.34.1/./glib/gmain.c:3290
#24 0x00007fcbd0aeeea4 in g_main_context_iteration (context=0xfd14b0, may_block=1) at /build/buildd/glib2.0-2.34.1/./glib/gmain.c:3351
#25 0x00007fcbd7a8cbf6 in QEventDispatcherGlib::processEvents (this=0xf94ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#26 0x00007fcbd875fc1e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#27 0x00007fcbd7a5d2bf in QEventLoop::processEvents (this=this@entry=0x7fffec4c2960, flags=...) at kernel/qeventloop.cpp:149
#28 0x00007fcbd7a5d548 in QEventLoop::exec (this=0x7fffec4c2960, flags=...) at kernel/qeventloop.cpp:204
#29 0x00007fcbd7a62708 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#30 0x000000000040a98e in main (argc=5, argv=0x7fffec4c2bc8) at ../../../systemsettings/app/main.cpp:49

Reported using DrKonqi