Application: plasma-desktop (0.3)
KDE Platform Version: 4.4.2 (KDE 4.4.2)
Qt Version: 4.6.2
Operating System: Linux 2.6.32-23-generic x86_64
Distribution: Ubuntu 10.04 LTS

-- Information about the crash:
in the settings for  Device notifier settings page / removable devices 
I selected all the disconnected removable devices & clicked on the forget device button

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fd3879cb760 (LWP 1981))]

Thread 2 (Thread 0x7fd361e24710 (LWP 2002)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fd37d671ca6 in ?? () from /usr/lib/libQtWebKit.so.4
#2  0x00007fd37d671ce9 in ?? () from /usr/lib/libQtWebKit.so.4
#3  0x00007fd385c199ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#4  0x00007fd3849cb6fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fd3879cb760 (LWP 1981)):
[KCrash Handler]
#5  0x00007fd385ec5546 in hash (key=<value optimized out>) at tools/qhash.cpp:84
#6  qHash (key=<value optimized out>) at tools/qhash.cpp:99
#7  0x00007fd351f207c1 in QHash<QString, bool>::findNode (this=0x25c6be0, akey=..., ahp=0x0) at /usr/include/qt4/QtCore/qhash.h:875
#8  0x00007fd351f20a1c in QHash<QString, bool>::remove (this=0x25c6be0, akey=...) at /usr/include/qt4/QtCore/qhash.h:784
#9  0x00007fd351f1f5cf in DeviceModel::forgetDevice (this=0x25c6bc0, udi=...) at ../../../solid-device-automounter/kcm/DeviceModel.cpp:41
#10 0x00007fd351f1cc0a in DeviceAutomounterKCM::forgetSelectedDevices (this=0x255ab60) at ../../../solid-device-automounter/kcm/DeviceAutomounterKCM.cpp:87
#11 0x00007fd351f1ad0c in DeviceAutomounterKCM::qt_metacall (this=0x255ab60, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=<value optimized out>) at moc_DeviceAutomounterKCM.cpp:87
#12 0x00007fd385fb0e3f in QMetaObject::activate (sender=0x25dcd40, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x2) at kernel/qobject.cpp:3293
#13 0x00007fd3857d55f2 in QAbstractButton::clicked (this=0x1098c7e70, _t1=false) at .moc/release-shared/moc_qabstractbutton.cpp:206
#14 0x00007fd3854ef86b in QAbstractButtonPrivate::emitClicked (this=0x25dcd70) at widgets/qabstractbutton.cpp:546
#15 0x00007fd3854f070b in QAbstractButtonPrivate::click (this=0x25dcd70) at widgets/qabstractbutton.cpp:539
#16 0x00007fd3854f097c in QAbstractButton::mouseReleaseEvent (this=0x25dcd40, e=0x7fff6beb3dd0) at widgets/qabstractbutton.cpp:1121
#17 0x00007fd385190582 in QWidget::event (this=0x25dcd40, event=0x7fff6beb3dd0) at kernel/qwidget.cpp:7998
#18 0x00007fd38513a22c in QApplicationPrivate::notify_helper (this=0x8280e0, receiver=0x25dcd40, e=0x7fff6beb3dd0) at kernel/qapplication.cpp:4300
#19 0x00007fd385140ecb in QApplication::notify (this=0x811ba0, receiver=0x25dcd40, e=0x7fff6beb3dd0) at kernel/qapplication.cpp:3865
#20 0x00007fd3864e5526 in KApplication::notify (this=0x811ba0, receiver=0x25dcd40, event=0x7fff6beb3dd0) at ../../kdeui/kernel/kapplication.cpp:302
#21 0x00007fd385f9e06c in QCoreApplication::notifyInternal (this=0x811ba0, receiver=0x25dcd40, event=0x7fff6beb3dd0) at kernel/qcoreapplication.cpp:704
#22 0x00007fd3851400ae in QCoreApplication::sendEvent (receiver=0x25dcd40, event=0x7fff6beb3dd0, alienWidget=0x25dcd40, nativeWidget=0x1ee8dd0, buttonDown=<value optimized out>, 
    lastMouseReceiver=<value optimized out>, spontaneous=true) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#23 QApplicationPrivate::sendMouseEvent (receiver=0x25dcd40, event=0x7fff6beb3dd0, alienWidget=0x25dcd40, nativeWidget=0x1ee8dd0, buttonDown=<value optimized out>, 
    lastMouseReceiver=<value optimized out>, spontaneous=true) at kernel/qapplication.cpp:2965
#24 0x00007fd3851bff65 in QETWidget::translateMouseEvent (this=0x1ee8dd0, event=<value optimized out>) at kernel/qapplication_x11.cpp:4368
#25 0x00007fd3851be8ac in QApplication::x11ProcessEvent (this=<value optimized out>, event=0x7fff6beb46f0) at kernel/qapplication_x11.cpp:3501
#26 0x00007fd3851ea882 in x11EventSourceDispatch (s=0x82b6c0, callback=<value optimized out>, user_data=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:146
#27 0x00007fd38137f8c2 in g_main_dispatch (context=0x82a8b0) at /build/buildd/glib2.0-2.24.1/glib/gmain.c:1960
#28 IA__g_main_context_dispatch (context=0x82a8b0) at /build/buildd/glib2.0-2.24.1/glib/gmain.c:2513
#29 0x00007fd381383748 in g_main_context_iterate (context=0x82a8b0, block=<value optimized out>, dispatch=<value optimized out>, self=<value optimized out>)
    at /build/buildd/glib2.0-2.24.1/glib/gmain.c:2591
#30 0x00007fd3813838fc in IA__g_main_context_iteration (context=0x82a8b0, may_block=1) at /build/buildd/glib2.0-2.24.1/glib/gmain.c:2654
#31 0x00007fd385fc7513 in QEventDispatcherGlib::processEvents (this=0x79d140, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:412
#32 0x00007fd3851ea46e in QGuiEventDispatcherGlib::processEvents (this=0x1098c7e70, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#33 0x00007fd385f9c992 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#34 0x00007fd385f9cd6c in QEventLoop::exec (this=0x7fff6beb4a20, flags=) at kernel/qeventloop.cpp:201
#35 0x00007fd385fa0aab in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#36 0x00007fd37afdbfb2 in kdemain (argc=<value optimized out>, argv=<value optimized out>) at ../../../../plasma/desktop/shell/main.cpp:112
#37 0x00000000004070f3 in launch (argc=1, _name=<value optimized out>, args=<value optimized out>, cwd=<value optimized out>, envc=0, envs=<value optimized out>, reset_env=false, tty=0x0, 
    avoid_loops=false, startup_id_str=0x40a4f9 "0") at ../../kinit/kinit.cpp:717
#38 0x0000000000407cb0 in handle_launcher_request (sock=8, who=<value optimized out>) at ../../kinit/kinit.cpp:1209
#39 0x000000000040823a in handle_requests (waitForPid=0) at ../../kinit/kinit.cpp:1402
#40 0x0000000000408e22 in main (argc=4, argv=<value optimized out>, envp=<value optimized out>) at ../../kinit/kinit.cpp:1845

Reported using DrKonqi