Application: plasma-desktop (0.4)
KDE Platform Version: 4.8.00 (4.8.0
Qt Version: 4.7.4
Operating System: Linux 3.2.1-ck x86_64
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed:
I use folderview as a desktop. I dragged a file from the desktop on a folder (also on the desktop), folder contents appeared as a popup (as expected), I was about to release the file in a subfolder when plasma crashed.

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 0x7fab064cd7c0 (LWP 8303))]

Thread 4 (Thread 0x7faae6d12700 (LWP 8370)):
#0  0x00007faafabe01e7 in __pthread_mutex_unlock_usercnt (mutex=<optimized out>, decr=<optimized out>) at pthread_mutex_unlock.c:41
#1  __pthread_mutex_unlock (mutex=0x213ded8) at pthread_mutex_unlock.c:290
#2  0x00007faafa0cefe4 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007faafa0cfdfd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007faafa0d0429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fab02fdbf3e in QEventDispatcherGlib::processEvents (this=0x1decd70, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#6  0x00007fab02fafcf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fab02fafef7 in QEventLoop::exec (this=0x7faae6d11cd0, flags=...) at kernel/qeventloop.cpp:201
#8  0x00007fab02ec727f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#9  0x00007fab02f92cbf in QInotifyFileSystemWatcherEngine::run (this=0x205e570) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007fab02ec9d05 in QThreadPrivate::start (arg=0x205e570) at thread/qthread_unix.cpp:331
#11 0x00007faaf73e956c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#12 0x00007faafabdcefc in start_thread (arg=0x7faae6d12700) at pthread_create.c:304
#13 0x00007fab05dca89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#14 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7faada0be700 (LWP 8468)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007faafffdffe2 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007faafffe0019 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007faaf73e956c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#4  0x00007faafabdcefc in start_thread (arg=0x7faada0be700) at pthread_create.c:304
#5  0x00007fab05dca89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7faae4e05700 (LWP 8473)):
#0  0x00007fab05dbe773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007faafa0cff68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007faafa0d0429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fab02fdbf3e in QEventDispatcherGlib::processEvents (this=0x7faae0007920, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007fab02fafcf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fab02fafef7 in QEventLoop::exec (this=0x7faae4e04cd0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007fab02ec727f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007fab02f92cbf in QInotifyFileSystemWatcherEngine::run (this=0x2bf98b0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fab02ec9d05 in QThreadPrivate::start (arg=0x2bf98b0) at thread/qthread_unix.cpp:331
#9  0x00007faaf73e956c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007faafabdcefc in start_thread (arg=0x7faae4e05700) at pthread_create.c:304
#11 0x00007fab05dca89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fab064cd7c0 (LWP 8303)):
[KCrash Handler]
#6  QDragManager::move (this=0x4728120, globalPos=...) at kernel/qdnd_x11.cpp:1658
#7  0x00007fab023eef99 in QDragManager::eventFilter (this=0x4728120, o=<optimized out>, e=<optimized out>) at kernel/qdnd_x11.cpp:1306
#8  0x00007fab02fb0bcc in QCoreApplicationPrivate::sendThroughApplicationEventFilters (this=0x1c49560, receiver=0x1e6fdf10, event=0x7fff67d3d9e0) at kernel/qcoreapplication.cpp:883
#9  0x00007fab023603e6 in QApplicationPrivate::notify_helper (this=0x1c49560, receiver=0x1e6fdf10, e=0x7fff67d3d9e0) at kernel/qapplication.cpp:4461
#10 0x00007fab02365cbb in QApplication::notify (this=<optimized out>, receiver=0x1e6fdf10, e=0x7fff67d3d9e0) at kernel/qapplication.cpp:4047
#11 0x00007fab03c60ae6 in KApplication::notify (this=0x1c29b10, receiver=0x1e6fdf10, event=0x7fff67d3d9e0) at ../../kdeui/kernel/kapplication.cpp:311
#12 0x00007fab02fb0afc in QCoreApplication::notifyInternal (this=0x1c29b10, receiver=0x1e6fdf10, event=0x7fff67d3d9e0) at kernel/qcoreapplication.cpp:787
#13 0x00007fab02361442 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#14 QApplicationPrivate::sendMouseEvent (receiver=0x1e6fdf10, event=0x7fff67d3d9e0, alienWidget=0x0, nativeWidget=0x1e6fdf10, buttonDown=0x0, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3146
#15 0x00007fab023e09d5 in QETWidget::translateMouseEvent (this=0x1e6fdf10, event=<optimized out>) at kernel/qapplication_x11.cpp:4571
#16 0x00007fab023df94e in QApplication::x11ProcessEvent (this=0x1c29b10, event=0x7fff67d3e200) at kernel/qapplication_x11.cpp:3693
#17 0x00007fab024084a2 in x11EventSourceDispatch (s=0x1c3a590, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#18 0x00007faafa0cfa5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007faafa0d0258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007faafa0d0429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007fab02fdbed6 in QEventDispatcherGlib::processEvents (this=0x1b42f40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#22 0x00007fab0240810e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#23 0x00007fab02fafcf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#24 0x00007fab02fafef7 in QEventLoop::exec (this=0x3202350, flags=...) at kernel/qeventloop.cpp:201
#25 0x00007fab023eec95 in QDragManager::drag (this=0x4728120, o=<optimized out>) at kernel/qdnd_x11.cpp:1981
#26 0x00007fab02371f88 in QDrag::exec (this=0x44b6390, supportedActions=..., defaultDropAction=Qt::IgnoreAction) at kernel/qdrag.cpp:284
#27 0x00007fab02372043 in QDrag::exec (this=<optimized out>, supportedActions=<optimized out>) at kernel/qdrag.cpp:239
#28 0x00007faacfc4e3a4 in ?? () from /usr/lib/kde4/plasma_applet_folderview.so
#29 0x00007faacfc57dff in ?? () from /usr/lib/kde4/plasma_applet_folderview.so
#30 0x00007faacfc584ad in ?? () from /usr/lib/kde4/plasma_applet_folderview.so
#31 0x00007fab0292773e in QGraphicsItem::sceneEvent (this=0x2480c10, event=0x7fff67d3f2c0) at graphicsview/qgraphicsitem.cpp:6724
#32 0x00007fab0294fcea in QGraphicsScenePrivate::sendMouseEvent (this=0x1e3a410, mouseEvent=0x7fff67d3f2c0) at graphicsview/qgraphicsscene.cpp:1291
#33 0x00007fab029507dc in QGraphicsScene::mouseMoveEvent (this=<optimized out>, mouseEvent=0x7fff67d3f2c0) at graphicsview/qgraphicsscene.cpp:4095
#34 0x00007fab0295e98b in QGraphicsScene::event (this=0x1e29b30, event=0x7fff67d3f2c0) at graphicsview/qgraphicsscene.cpp:3446
#35 0x00007fab02360474 in notify_helper (e=0x7fff67d3f2c0, receiver=0x1e29b30, this=0x1c49560) at kernel/qapplication.cpp:4486
#36 QApplicationPrivate::notify_helper (this=0x1c49560, receiver=0x1e29b30, e=0x7fff67d3f2c0) at kernel/qapplication.cpp:4458
#37 0x00007fab023652e1 in QApplication::notify (this=0x1c29b10, receiver=0x1e29b30, e=0x7fff67d3f2c0) at kernel/qapplication.cpp:4365
#38 0x00007fab03c60ae6 in KApplication::notify (this=0x1c29b10, receiver=0x1e29b30, event=0x7fff67d3f2c0) at ../../kdeui/kernel/kapplication.cpp:311
#39 0x00007fab02fb0afc in QCoreApplication::notifyInternal (this=0x1c29b10, receiver=0x1e29b30, event=0x7fff67d3f2c0) at kernel/qcoreapplication.cpp:787
#40 0x00007fab02978999 in QGraphicsViewPrivate::mouseMoveEventHandler (this=0x2316a00, event=0x7fff67d3fbf0) at graphicsview/qgraphicsview.cpp:647
#41 0x00007fab02978bbe in QGraphicsView::mouseMoveEvent (this=0x2065c80, event=0x7fff67d3fbf0) at graphicsview/qgraphicsview.cpp:3274
#42 0x00007fab023b0d1e in QWidget::event (this=0x2065c80, event=0x7fff67d3fbf0) at kernel/qwidget.cpp:8280
#43 0x00007fab027595b6 in QFrame::event (this=0x2065c80, e=0x7fff67d3fbf0) at widgets/qframe.cpp:557
#44 0x00007fab0297cdfb in QGraphicsView::viewportEvent (this=0x2065c80, event=0x7fff67d3fbf0) at graphicsview/qgraphicsview.cpp:2864
#45 0x00007fab02fb0c88 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<optimized out>, receiver=0x2100470, event=0x7fff67d3fbf0) at kernel/qcoreapplication.cpp:902
#46 0x00007fab0236043f in notify_helper (e=0x7fff67d3fbf0, receiver=0x2100470, this=0x1c49560) at kernel/qapplication.cpp:4482
#47 QApplicationPrivate::notify_helper (this=0x1c49560, receiver=0x2100470, e=0x7fff67d3fbf0) at kernel/qapplication.cpp:4458
#48 0x00007fab02365cbb in QApplication::notify (this=<optimized out>, receiver=0x2100470, e=0x7fff67d3fbf0) at kernel/qapplication.cpp:4047
#49 0x00007fab03c60ae6 in KApplication::notify (this=0x1c29b10, receiver=0x2100470, event=0x7fff67d3fbf0) at ../../kdeui/kernel/kapplication.cpp:311
#50 0x00007fab02fb0afc in QCoreApplication::notifyInternal (this=0x1c29b10, receiver=0x2100470, event=0x7fff67d3fbf0) at kernel/qcoreapplication.cpp:787
#51 0x00007fab02361442 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#52 QApplicationPrivate::sendMouseEvent (receiver=0x2100470, event=0x7fff67d3fbf0, alienWidget=0x0, nativeWidget=0x2100470, buttonDown=0x0, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3146
#53 0x00007fab023e09d5 in QETWidget::translateMouseEvent (this=0x2100470, event=<optimized out>) at kernel/qapplication_x11.cpp:4571
#54 0x00007fab023df94e in QApplication::x11ProcessEvent (this=0x1c29b10, event=0x7fff67d40410) at kernel/qapplication_x11.cpp:3693
#55 0x00007fab024084a2 in x11EventSourceDispatch (s=0x1c3a590, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#56 0x00007faafa0cfa5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#57 0x00007faafa0d0258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#58 0x00007faafa0d0429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#59 0x00007fab02fdbed6 in QEventDispatcherGlib::processEvents (this=0x1b42f40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#60 0x00007fab0240810e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#61 0x00007fab02fafcf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#62 0x00007fab02fafef7 in QEventLoop::exec (this=0x7fff67d407e0, flags=...) at kernel/qeventloop.cpp:201
#63 0x00007fab02fb4789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#64 0x00007fab060c97e3 in kdemain () from /usr/lib/kde4/libkdeinit/libkdeinit4_plasma-desktop.so
#65 0x00007fab05d0a30d in __libc_start_main (main=0x400640, argc=1, ubp_av=0x7fff67d40bc8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff67d40bb8) at libc-start.c:226
#66 0x0000000000400671 in _start ()

Possible duplicates by query: bug 291229, bug 288107, bug 273263, bug 273017, bug 269297.

Reported using DrKonqi