Application: plasma-desktop (0.4)
KDE Platform Version: 4.8.00 (4.8.0
Qt Version: 4.7.4
Operating System: Linux 3.0.0-16-generic x86_64
Distribution: Ubuntu 11.10

-- Information about the crash:
it crashes when i try to open usb disk with dolphin

The crash can be reproduced some of the time.

-- Backtrace:
Application: Shell del desktop di Plasma (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fd268d967c0 (LWP 4709))]

Thread 4 (Thread 0x7fd23facc700 (LWP 4710)):
#0  0x00007fd25d4c81fd in __pthread_mutex_unlock_usercnt (mutex=<optimized out>, decr=<optimized out>) at pthread_mutex_unlock.c:52
#1  __pthread_mutex_unlock (mutex=0x1e09838) at pthread_mutex_unlock.c:290
#2  0x00007fd25c9b6fe4 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd25c9b7dfd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fd25c9b8429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fd265893f3e in QEventDispatcherGlib::processEvents (this=0x1e09d10, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#6  0x00007fd265867cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fd265867ef7 in QEventLoop::exec (this=0x7fd23facbd90, flags=...) at kernel/qeventloop.cpp:201
#8  0x00007fd26577f27f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#9  0x00007fd26584acbf in QInotifyFileSystemWatcherEngine::run (this=0x1e09240) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007fd265781d05 in QThreadPrivate::start (arg=0x1e09240) at thread/qthread_unix.cpp:331
#11 0x00007fd25d4c4efc in start_thread (arg=0x7fd23facc700) at pthread_create.c:304
#12 0x00007fd26868289d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fd23d298700 (LWP 4711)):
#0  0x00007fd268676773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fd25c9b7f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fd25c9b8429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd265893f3e in QEventDispatcherGlib::processEvents (this=0x1eea190, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007fd265867cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fd265867ef7 in QEventLoop::exec (this=0x7fd23d297d90, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007fd26577f27f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007fd26584acbf in QInotifyFileSystemWatcherEngine::run (this=0x1ee6710) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fd265781d05 in QThreadPrivate::start (arg=0x1ee6710) at thread/qthread_unix.cpp:331
#9  0x00007fd25d4c4efc in start_thread (arg=0x7fd23d298700) at pthread_create.c:304
#10 0x00007fd26868289d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fd236171700 (LWP 4714)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fd262897fe2 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007fd262898019 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007fd25d4c4efc in start_thread (arg=0x7fd236171700) at pthread_create.c:304
#4  0x00007fd26868289d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fd268d967c0 (LWP 4709)):
[KCrash Handler]
#6  QDeclarativeExpression::hasError (this=0x4) at qml/qdeclarativeexpression.cpp:769
#7  0x00007fd261bb331e in QDeclarativeBoundSignal::qt_metacall (this=0x24dde10, c=<optimized out>, id=<optimized out>, a=0x7fff7466aa40) at qml/qdeclarativeboundsignal.cpp:187
#8  0x00007fd26587beba in QMetaObject::activate (sender=0x31546b0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3278
#9  0x00007fd261b197d4 in QDeclarativeMouseArea::hoverEnterEvent (this=0x31546b0, event=0x7fff7466abf0) at graphicsitems/qdeclarativemousearea.cpp:624
#10 0x00007fd2651df861 in QGraphicsItem::sceneEvent (this=0x31546c0, event=0x7fff7466abf0) at graphicsview/qgraphicsitem.cpp:6715
#11 0x00007fd261b0cbb2 in QDeclarativeItem::sceneEvent (this=0x31546b0, event=0x7fff7466abf0) at graphicsitems/qdeclarativeitem.cpp:3005
#12 0x00007fd261b191a9 in QDeclarativeMouseArea::sceneEvent (this=0x31546b0, event=0x7fff7466abf0) at graphicsitems/qdeclarativemousearea.cpp:682
#13 0x00007fd265207eec in QGraphicsScenePrivate::sendHoverEvent (this=0x115eb30, type=<optimized out>, item=0x31546c0, hoverEvent=0x7fff7466ad80) at graphicsview/qgraphicsscene.cpp:1264
#14 0x00007fd26520849d in QGraphicsScenePrivate::dispatchHoverEvent (this=0x115eb30, hoverEvent=0x7fff7466ad80) at graphicsview/qgraphicsscene.cpp:3931
#15 0x00007fd265208822 in QGraphicsScene::mouseMoveEvent (this=<optimized out>, mouseEvent=0x7fff7466b260) at graphicsview/qgraphicsscene.cpp:4090
#16 0x00007fd26521698b in QGraphicsScene::event (this=0x1160400, event=0x7fff7466b260) at graphicsview/qgraphicsscene.cpp:3446
#17 0x00007fd264c18474 in notify_helper (e=0x7fff7466b260, receiver=0x1160400, this=0xfe5d80) at kernel/qapplication.cpp:4486
#18 QApplicationPrivate::notify_helper (this=0xfe5d80, receiver=0x1160400, e=0x7fff7466b260) at kernel/qapplication.cpp:4458
#19 0x00007fd264c1d2e1 in QApplication::notify (this=0xfc9680, receiver=0x1160400, e=0x7fff7466b260) at kernel/qapplication.cpp:4365
#20 0x00007fd266518ae6 in KApplication::notify (this=0xfc9680, receiver=0x1160400, event=0x7fff7466b260) at ../../kdeui/kernel/kapplication.cpp:311
#21 0x00007fd265868afc in QCoreApplication::notifyInternal (this=0xfc9680, receiver=0x1160400, event=0x7fff7466b260) at kernel/qcoreapplication.cpp:787
#22 0x00007fd265230999 in QGraphicsViewPrivate::mouseMoveEventHandler (this=0x24fe900, event=0x7fff7466bb50) at graphicsview/qgraphicsview.cpp:647
#23 0x00007fd265230bbe in QGraphicsView::mouseMoveEvent (this=0x24812b0, event=0x7fff7466bb50) at graphicsview/qgraphicsview.cpp:3274
#24 0x00007fd264c68d1e in QWidget::event (this=0x24812b0, event=0x7fff7466bb50) at kernel/qwidget.cpp:8280
#25 0x00007fd2650115b6 in QFrame::event (this=0x24812b0, e=0x7fff7466bb50) at widgets/qframe.cpp:557
#26 0x00007fd265234dfb in QGraphicsView::viewportEvent (this=0x24812b0, event=0x7fff7466bb50) at graphicsview/qgraphicsview.cpp:2864
#27 0x00007fd265868c88 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<optimized out>, receiver=0x2501b00, event=0x7fff7466bb50) at kernel/qcoreapplication.cpp:902
#28 0x00007fd264c1843f in notify_helper (e=0x7fff7466bb50, receiver=0x2501b00, this=0xfe5d80) at kernel/qapplication.cpp:4482
#29 QApplicationPrivate::notify_helper (this=0xfe5d80, receiver=0x2501b00, e=0x7fff7466bb50) at kernel/qapplication.cpp:4458
#30 0x00007fd264c1dcbb in QApplication::notify (this=<optimized out>, receiver=0x2501b00, e=0x7fff7466bb50) at kernel/qapplication.cpp:4047
#31 0x00007fd266518ae6 in KApplication::notify (this=0xfc9680, receiver=0x2501b00, event=0x7fff7466bb50) at ../../kdeui/kernel/kapplication.cpp:311
#32 0x00007fd265868afc in QCoreApplication::notifyInternal (this=0xfc9680, receiver=0x2501b00, event=0x7fff7466bb50) at kernel/qcoreapplication.cpp:787
#33 0x00007fd264c19442 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#34 QApplicationPrivate::sendMouseEvent (receiver=0x2501b00, event=0x7fff7466bb50, alienWidget=0x2501b00, nativeWidget=0x2507d70, buttonDown=0x0, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3146
#35 0x00007fd264c198da in QApplicationPrivate::sendSyntheticEnterLeave (this=<optimized out>, widget=0x2501b00) at kernel/qapplication.cpp:3232
#36 0x00007fd264c644dd in QWidgetPrivate::hideChildren (this=<optimized out>, spontaneous=false) at kernel/qwidget.cpp:7832
#37 0x00007fd264c6449c in QWidgetPrivate::hideChildren (this=<optimized out>, spontaneous=false) at kernel/qwidget.cpp:7818
#38 0x00007fd264c6464e in QWidgetPrivate::hide_helper (this=0x24efff0) at kernel/qwidget.cpp:7562
#39 0x00007fd264c6cd08 in QWidget::setVisible (this=0x2507d70, visible=<optimized out>) at kernel/qwidget.cpp:7734
#40 0x00007fd2681dc8fe in Plasma::PopupAppletPrivate::clearPopupLostFocus (this=0x24cb310) at ../../plasma/popupapplet.cpp:795
#41 0x00007fd2681dd869 in Plasma::PopupApplet::qt_metacall (this=0x24a5630, _c=QMetaObject::InvokeMetaMethod, _id=6, _a=0x7fff7466be10) at ./popupapplet.moc:103
#42 0x00007fd26587beba in QMetaObject::activate (sender=0x2c8fc70, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3278
#43 0x00007fd265883f7f in QSingleShotTimer::timerEvent (this=0x2c8fc70) at kernel/qtimer.cpp:308
#44 0x00007fd26587f789 in QObject::event (this=0x2c8fc70, e=<optimized out>) at kernel/qobject.cpp:1181
#45 0x00007fd264c18474 in notify_helper (e=0x7fff7466c380, receiver=0x2c8fc70, this=0xfe5d80) at kernel/qapplication.cpp:4486
#46 QApplicationPrivate::notify_helper (this=0xfe5d80, receiver=0x2c8fc70, e=0x7fff7466c380) at kernel/qapplication.cpp:4458
#47 0x00007fd264c1d2e1 in QApplication::notify (this=0xfc9680, receiver=0x2c8fc70, e=0x7fff7466c380) at kernel/qapplication.cpp:4365
#48 0x00007fd266518ae6 in KApplication::notify (this=0xfc9680, receiver=0x2c8fc70, event=0x7fff7466c380) at ../../kdeui/kernel/kapplication.cpp:311
#49 0x00007fd265868afc in QCoreApplication::notifyInternal (this=0xfc9680, receiver=0x2c8fc70, event=0x7fff7466c380) at kernel/qcoreapplication.cpp:787
#50 0x00007fd265895d62 in sendEvent (event=0x7fff7466c380, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#51 QTimerInfoList::activateTimers (this=0xfe2fc0) at kernel/qeventdispatcher_unix.cpp:603
#52 0x00007fd265893538 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#53 idleTimerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:231
#54 0x00007fd25c9b7a5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#55 0x00007fd25c9b8258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#56 0x00007fd25c9b8429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#57 0x00007fd265893ed6 in QEventDispatcherGlib::processEvents (this=0xf22f40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#58 0x00007fd264cc010e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#59 0x00007fd265867cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#60 0x00007fd265867ef7 in QEventLoop::exec (this=0x7fff7466c610, flags=...) at kernel/qeventloop.cpp:201
#61 0x00007fd26586c789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#62 0x00007fd2689817e3 in kdemain (argc=1, argv=0x7fff7466c9f8) at ../../../../plasma/desktop/shell/main.cpp:120
#63 0x00007fd2685c230d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fff7466c9f8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff7466c9e8) at libc-start.c:226
#64 0x0000000000400671 in _start ()

This bug may be a duplicate of or related to bug 290648.

Possible duplicates by query: bug 290648.

Reported using DrKonqi