Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.4 (4.7.4)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-17-generic-pae i686
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed:
I was trying to install minecraft.jar. I tried to drag the .jar fil from the downloads folder to the desktop. When I did , plasma  crashed. 

- Unusual behavior I noticed:
As soon as I dropped the file, the desktop background flickered and went black and then the crash report popped up.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb1e69b20 (LWP 1612))]

Thread 5 (Thread 0xab376b70 (LWP 1613)):
#0  0xb2e83efe in g_main_context_acquire () from /lib/i386-linux-gnu/libglib-2.0.so.0
#1  0xb2e8556d in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0xb2e85c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb6439b37 in QEventDispatcherGlib::processEvents (this=0xa5cd230, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4  0xb640a1dd in QEventLoop::processEvents (this=0xab3762a0, flags=...) at kernel/qeventloop.cpp:149
#5  0xb640a421 in QEventLoop::exec (this=0xab3762a0, flags=...) at kernel/qeventloop.cpp:201
#6  0xb630d90b in QThread::exec (this=0xa5caba0) at thread/qthread.cpp:498
#7  0xb63eae2d in QInotifyFileSystemWatcherEngine::run (this=0xa5caba0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0xb63107b3 in QThreadPrivate::start (arg=0xa5caba0) at thread/qthread_unix.cpp:331
#9  0xb2f9fd31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#10 0xb75f346e in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 4 (Thread 0xa96c5b70 (LWP 1614)):
#0  0xb6439001 in timerSourcePrepareHelper (src=0xa05e710, timeout=0xa96c511c) at kernel/qeventdispatcher_glib.cpp:134
#1  0xb64390ed in timerSourcePrepare (source=0xa05e710, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#2  0xb2e8488c in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb2e85637 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb2e85c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb6439b37 in QEventDispatcherGlib::processEvents (this=0xa079d70, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0xb640a1dd in QEventLoop::processEvents (this=0xa96c52a0, flags=...) at kernel/qeventloop.cpp:149
#7  0xb640a421 in QEventLoop::exec (this=0xa96c52a0, flags=...) at kernel/qeventloop.cpp:201
#8  0xb630d90b in QThread::exec (this=0xa055a90) at thread/qthread.cpp:498
#9  0xb63eae2d in QInotifyFileSystemWatcherEngine::run (this=0xa055a90) at io/qfilesystemwatcher_inotify.cpp:248
#10 0xb63107b3 in QThreadPrivate::start (arg=0xa055a90) at thread/qthread_unix.cpp:331
#11 0xb2f9fd31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0xb75f346e in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 3 (Thread 0xa7957b70 (LWP 1621)):
#0  0xb2fa1dc6 in pthread_mutex_lock () from /lib/i386-linux-gnu/libpthread.so.0
#1  0xb76012b4 in pthread_mutex_lock () from /lib/i386-linux-gnu/libc.so.6
#2  0xb2e850c3 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb2e85990 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb2e85f9b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xa8219cea in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#6  0xb2eac5f4 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#7  0xb2f9fd31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#8  0xb75f346e in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 2 (Thread 0xa6955b70 (LWP 1623)):
#0  0xb772f424 in __kernel_vsyscall ()
#1  0xb2fa3a5c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0xb760109c in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0xb3e8b9a9 in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#4  0xb3e8b9ef in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#5  0xb2f9fd31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#6  0xb75f346e in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 1 (Thread 0xb1e69b20 (LWP 1612)):
[KCrash Handler]
#7  QDragManager::move (this=0xbb432e0, globalPos=...) at kernel/qdnd_x11.cpp:1658
#8  0xb59d36c7 in QDragManager::eventFilter (this=0xbb432e0, o=0xb876a50, e=0xbfa3b87c) at kernel/qdnd_x11.cpp:1306
#9  0xb640b26b in QCoreApplicationPrivate::sendThroughApplicationEventFilters (this=0xa030118, receiver=0xb876a50, event=0xbfa3b87c) at kernel/qcoreapplication.cpp:883
#10 0xb5936cfa in QApplicationPrivate::notify_helper (this=0xa030118, receiver=0xb876a50, e=0xbfa3b87c) at kernel/qapplication.cpp:4461
#11 0xb593cdeb in QApplication::notify (this=0xa030118, receiver=0xb876a50, e=0xbfa3b87c) at kernel/qapplication.cpp:4047
#12 0xb6a70971 in KApplication::notify (this=0xa01e428, receiver=0xb876a50, event=0xbfa3b87c) at ../../kdeui/kernel/kapplication.cpp:311
#13 0xb640b19e in QCoreApplication::notifyInternal (this=0xa01e428, receiver=0xb876a50, event=0xbfa3b87c) at kernel/qcoreapplication.cpp:787
#14 0xb5937d45 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#15 QApplicationPrivate::sendMouseEvent (receiver=0xb876a50, event=0xbfa3b87c, alienWidget=0x0, nativeWidget=0xb352fb0, buttonDown=0xb62a1eb4, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3146
#16 0xb59c4a3a in QETWidget::translateMouseEvent (this=0xb352fb0, event=0xbfa3bcfc) at kernel/qapplication_x11.cpp:4505
#17 0xb59c2e8d in QApplication::x11ProcessEvent (this=0xa01e428, event=0xbfa3bcfc) at kernel/qapplication_x11.cpp:3693
#18 0xb59ef28c in x11EventSourceDispatch (s=0xa0327a0, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#19 0xb2e8525f in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#20 0xb2e85990 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#21 0xb2e85c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#22 0xb6439ada in QEventDispatcherGlib::processEvents (this=0x9fe4218, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#23 0xb59eee7a in QGuiEventDispatcherGlib::processEvents (this=0x9fe4218, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#24 0xb640a1dd in QEventLoop::processEvents (this=0xb0233b8, flags=...) at kernel/qeventloop.cpp:149
#25 0xb640a421 in QEventLoop::exec (this=0xb0233b8, flags=...) at kernel/qeventloop.cpp:201
#26 0xb59d33a8 in QDragManager::drag (this=0xbb432e0, o=0xb4ac9d0) at kernel/qdnd_x11.cpp:1981
#27 0xb594a6b1 in QDrag::exec (this=0xb4ac9d0, supportedActions=..., defaultDropAction=Qt::CopyAction) at kernel/qdrag.cpp:284
#28 0xb5ed5458 in QAbstractItemView::startDrag (this=0xafcd4a8, supportedActions=...) at itemviews/qabstractitemview.cpp:3448
#29 0xb0b26af6 in ?? () from /usr/lib/kde4/plasma_applet_quickaccess.so
#30 0xb5ed40ed in QAbstractItemView::mouseMoveEvent (this=0xafcd4a8, event=0xbfa3c2a4) at itemviews/qabstractitemview.cpp:1709
#31 0xb0b2466c in ?? () from /usr/lib/kde4/plasma_applet_quickaccess.so
#32 0xb5991004 in QWidget::event (this=0xafcd4a8, event=0xbfa3cb0c) at kernel/qwidget.cpp:8280
#33 0xb5d96285 in QFrame::event (this=0xafcd4a8, e=0xbfa3cb0c) at widgets/qframe.cpp:557
#34 0xb5e28821 in QAbstractScrollArea::viewportEvent (this=0xafcd4a8, e=0xbfa3cb0c) at widgets/qabstractscrollarea.cpp:1043
#35 0xb5ecabbc in QAbstractItemView::viewportEvent (this=0xafcd4a8, event=0xbfa3cb0c) at itemviews/qabstractitemview.cpp:1628
#36 0xb0b22e1b in ?? () from /usr/lib/kde4/plasma_applet_quickaccess.so
#37 0xb5e2af36 in viewportEvent (this=<optimized out>, event=0xbfa3cb0c) at widgets/qabstractscrollarea_p.h:100
#38 eventFilter (e=0xbfa3cb0c, this=<optimized out>, o=<optimized out>) at widgets/qabstractscrollarea_p.h:116
#39 QAbstractScrollAreaFilter::eventFilter (this=0xb34cb08, o=0xaa08678, e=0xbfa3cb0c) at widgets/qabstractscrollarea_p.h:115
#40 0xb640b336 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0xa030118, receiver=0xaa08678, event=0xbfa3cb0c) at kernel/qcoreapplication.cpp:902
#41 0xb5936d52 in notify_helper (e=0xbfa3cb0c, receiver=0xaa08678, this=0xa030118) at kernel/qapplication.cpp:4482
#42 QApplicationPrivate::notify_helper (this=0xa030118, receiver=0xaa08678, e=0xbfa3cb0c) at kernel/qapplication.cpp:4458
#43 0xb593cdeb in QApplication::notify (this=0xa030118, receiver=0xaa08678, e=0xbfa3cb0c) at kernel/qapplication.cpp:4047
#44 0xb6a70971 in KApplication::notify (this=0xa01e428, receiver=0xaa08678, event=0xbfa3cb0c) at ../../kdeui/kernel/kapplication.cpp:311
#45 0xb640b19e in QCoreApplication::notifyInternal (this=0xa01e428, receiver=0xaa08678, event=0xbfa3cb0c) at kernel/qcoreapplication.cpp:787
#46 0xb5937d45 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#47 QApplicationPrivate::sendMouseEvent (receiver=0xaa08678, event=0xbfa3cb0c, alienWidget=0xaa08678, nativeWidget=0xb876a50, buttonDown=0xb62a1eb4, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3146
#48 0xb59c4a3a in QETWidget::translateMouseEvent (this=0xb876a50, event=0xbfa3cf8c) at kernel/qapplication_x11.cpp:4505
#49 0xb59c2e8d in QApplication::x11ProcessEvent (this=0xa01e428, event=0xbfa3cf8c) at kernel/qapplication_x11.cpp:3693
#50 0xb59ef28c in x11EventSourceDispatch (s=0xa0327a0, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#51 0xb2e8525f in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#52 0xb2e85990 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#53 0xb2e85c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#54 0xb6439ada in QEventDispatcherGlib::processEvents (this=0x9fe4218, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#55 0xb59eee7a in QGuiEventDispatcherGlib::processEvents (this=0x9fe4218, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#56 0xb640a1dd in QEventLoop::processEvents (this=0xbfa3d294, flags=...) at kernel/qeventloop.cpp:149
#57 0xb640a421 in QEventLoop::exec (this=0xbfa3d294, flags=...) at kernel/qeventloop.cpp:201
#58 0xb640f19d in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#59 0xb5934924 in QApplication::exec () at kernel/qapplication.cpp:3760
#60 0xb76e418b in kdemain () from /usr/lib/kde4/libkdeinit/libkdeinit4_plasma-desktop.so
#61 0x0804850b in ?? ()
#62 0xb7539113 in __libc_start_main () from /lib/i386-linux-gnu/libc.so.6
#63 0x08048531 in _start ()

This bug may be a duplicate of or related to bug 292908.

Possible duplicates by query: bug 292908, bug 291229, bug 288107, bug 273263, bug 273017.

Reported using DrKonqi