Application: plasma-desktop (4.11.3)
KDE Platform Version: 4.11.3
Qt Version: 4.8.4
Operating System: Linux 3.11.0-12-generic i686
Distribution: Linux Mint 16 Petra

-- Information about the crash:
- Unusual behavior I noticed:
Firefox stop flash. Flash not function like needed

The crash can be reproduced sometimes.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0xb12a4740 (LWP 1828))]

Thread 5 (Thread 0xae7feb40 (LWP 1829)):
#0  0xb7750424 in __kernel_vsyscall ()
#1  0xb211084b in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0xb760e9bc in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0xb3112ef2 in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#4  0xb3112f3f in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#5  0xb210cd78 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#6  0xb760101e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 4 (Thread 0xa6e97b40 (LWP 1833)):
#0  0xb760ede0 in ?? () from /lib/i386-linux-gnu/libc.so.6
#1  0xb75f1a14 in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0xb2006a4b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb1ff7b68 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb1ff7ca8 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb606c8df in QEventDispatcherGlib::processEvents (this=0xa6500468, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0xb603b9f3 in QEventLoop::processEvents (this=this@entry=0xa6e97228, flags=...) at kernel/qeventloop.cpp:149
#7  0xb603bd19 in QEventLoop::exec (this=this@entry=0xa6e97228, flags=...) at kernel/qeventloop.cpp:204
#8  0xb5f2ae3d in QThread::exec (this=this@entry=0x8f266a8) at thread/qthread.cpp:542
#9  0xb601be14 in QInotifyFileSystemWatcherEngine::run (this=0x8f266a8) at io/qfilesystemwatcher_inotify.cpp:265
#10 0xb5f2d72f in QThreadPrivate::start (arg=0x8f266a8) at thread/qthread_unix.cpp:338
#11 0xb210cd78 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0xb760101e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 3 (Thread 0xa58ffb40 (LWP 1835)):
#0  0xb203a86e in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#1  0xb203abe8 in g_mutex_unlock () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0xb1ff71b7 in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb1ff7a5f in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb1ff804b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xa637232a in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#6  0xb201dc4a in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#7  0xb210cd78 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#8  0xb760101e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 2 (Thread 0xa4effb40 (LWP 1836)):
#0  0xb760edea in ?? () from /lib/i386-linux-gnu/libc.so.6
#1  0xb75ef8e4 in read () from /lib/i386-linux-gnu/libc.so.6
#2  0xb2039d4e in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb1ff765b in g_main_context_check () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb1ff7afa in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb1ff7ca8 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#6  0xb606c8df in QEventDispatcherGlib::processEvents (this=0x8e5d0f0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#7  0xb603b9f3 in QEventLoop::processEvents (this=this@entry=0xa4eff228, flags=...) at kernel/qeventloop.cpp:149
#8  0xb603bd19 in QEventLoop::exec (this=this@entry=0xa4eff228, flags=...) at kernel/qeventloop.cpp:204
#9  0xb5f2ae3d in QThread::exec (this=this@entry=0x8df4b10) at thread/qthread.cpp:542
#10 0xb601be14 in QInotifyFileSystemWatcherEngine::run (this=0x8df4b10) at io/qfilesystemwatcher_inotify.cpp:265
#11 0xb5f2d72f in QThreadPrivate::start (arg=0x8df4b10) at thread/qthread_unix.cpp:338
#12 0xb210cd78 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#13 0xb760101e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 1 (Thread 0xb12a4740 (LWP 1828)):
[KCrash Handler]
#7  0xb604f54a in QObject::killTimer (this=this@entry=0xb5ec2694 <QRegion::shared_empty>, id=0) at kernel/qobject.cpp:1602
#8  0xb605b618 in QTimer::stop (this=this@entry=0xb5ec2694 <QRegion::shared_empty>) at kernel/qtimer.cpp:266
#9  0xb605b6d2 in QTimer::start (this=this@entry=0xb5ec2694 <QRegion::shared_empty>) at kernel/qtimer.cpp:216
#10 0xb605b732 in QTimer::start (this=0xb5ec2694 <QRegion::shared_empty>, msec=msec@entry=800) at kernel/qtimer.cpp:234
#11 0xada1361e in MouseEventListener::sceneEventFilter (this=0x96b2968, item=0xa46b850, event=0xbfc95a80) at ../../../../plasma/declarativeimports/qtextracomponents/mouseeventlistener.cpp:179
#12 0xb5bbcdb3 in QGraphicsScenePrivate::filterDescendantEvent (this=this@entry=0x86dfc00, item=item@entry=0xa46b850, event=event@entry=0xbfc95a80) at graphicsview/qgraphicsscene.cpp:1159
#13 0xb5bc1b08 in QGraphicsScenePrivate::sendEvent (this=0x86dfc00, item=0xa46b850, event=0xbfc95a80) at graphicsview/qgraphicsscene.cpp:1211
#14 0xb5bc20b6 in QGraphicsScenePrivate::sendMouseEvent (this=0x86dfc00, mouseEvent=0xbfc95a80) at graphicsview/qgraphicsscene.cpp:1295
#15 0xb5bcd037 in QGraphicsScenePrivate::mousePressEventHandler (this=this@entry=0x86dfc00, mouseEvent=mouseEvent@entry=0xbfc95a80) at graphicsview/qgraphicsscene.cpp:1422
#16 0xb5bcd537 in QGraphicsScene::mousePressEvent (this=0x87860d8, mouseEvent=0xbfc95a80) at graphicsview/qgraphicsscene.cpp:4074
#17 0xb5bd6f4f in QGraphicsScene::event (this=0x87860d8, event=0xbfc95a80) at graphicsview/qgraphicsscene.cpp:3455
#18 0xb554d744 in QApplicationPrivate::notify_helper (this=0x865f720, receiver=0x87860d8, e=0xbfc95a80) at kernel/qapplication.cpp:4567
#19 0xb5554223 in QApplication::notify (this=0x86487d8, receiver=receiver@entry=0x87860d8, e=e@entry=0xbfc95a80) at kernel/qapplication.cpp:4353
#20 0xb66afff4 in KApplication::notify (this=0x86487d8, receiver=0x87860d8, event=0xbfc95a80) at ../../kdeui/kernel/kapplication.cpp:311
#21 0xb603ceda in QCoreApplication::notifyInternal (this=0x86487d8, receiver=receiver@entry=0x87860d8, event=event@entry=0xbfc95a80) at kernel/qcoreapplication.cpp:946
#22 0xb554bbcd in sendSpontaneousEvent (event=0xbfc95a80, receiver=0x87860d8) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#23 qt_sendSpontaneousEvent (receiver=0x87860d8, event=event@entry=0xbfc95a80) at kernel/qapplication.cpp:5565
#24 0xb5bf06e5 in QGraphicsView::mousePressEvent (this=0x8b93570, event=0xbfc95f74) at graphicsview/qgraphicsview.cpp:3164
#25 0xb55a6f93 in QWidget::event (this=this@entry=0x8b93570, event=event@entry=0xbfc95f74) at kernel/qwidget.cpp:8371
#26 0xb59abfcc in QFrame::event (this=this@entry=0x8b93570, e=e@entry=0xbfc95f74) at widgets/qframe.cpp:557
#27 0xb5a3a318 in QAbstractScrollArea::viewportEvent (this=this@entry=0x8b93570, e=e@entry=0xbfc95f74) at widgets/qabstractscrollarea.cpp:1043
#28 0xb5bf1627 in QGraphicsView::viewportEvent (this=<optimized out>, event=<optimized out>) at graphicsview/qgraphicsview.cpp:2866
#29 0xb5a3a596 in viewportEvent (event=0xbfc95f74, this=<optimized out>) at widgets/qabstractscrollarea_p.h:100
#30 QAbstractScrollAreaFilter::eventFilter (this=0x92b7ca0, o=0x96ad4b8, e=0xbfc95f74) at widgets/qabstractscrollarea_p.h:116
#31 0xb603d04e in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=this@entry=0x865f720, receiver=receiver@entry=0x96ad4b8, event=event@entry=0xbfc95f74) at kernel/qcoreapplication.cpp:1056
#32 0xb554d721 in QApplicationPrivate::notify_helper (this=0x865f720, receiver=receiver@entry=0x96ad4b8, e=0xbfc95f74) at kernel/qapplication.cpp:4563
#33 0xb5555df8 in QApplication::notify (this=0x86487d8, receiver=receiver@entry=0x96ad4b8, e=e@entry=0xbfc95f74) at kernel/qapplication.cpp:4110
#34 0xb66afff4 in KApplication::notify (this=0x86487d8, receiver=0x96ad4b8, event=0xbfc95f74) at ../../kdeui/kernel/kapplication.cpp:311
#35 0xb603ceda in QCoreApplication::notifyInternal (this=0x86487d8, receiver=receiver@entry=0x96ad4b8, event=event@entry=0xbfc95f74) at kernel/qcoreapplication.cpp:946
#36 0xb5553aa3 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#37 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x96ad4b8, event=0xbfc95f74, alienWidget=0x96ad4b8, nativeWidget=0x8b93570, buttonDown=buttonDown@entry=0xb5ec2cc4 <qt_button_down>, lastMouseReceiver=..., spontaneous=spontaneous@entry=true) at kernel/qapplication.cpp:3178
#38 0xb55d74e8 in QETWidget::translateMouseEvent (this=0x8b93570, event=event@entry=0xbfc9619c) at kernel/qapplication_x11.cpp:4631
#39 0xb55d6c05 in QApplication::x11ProcessEvent (this=0x86487d8, event=event@entry=0xbfc9619c) at kernel/qapplication_x11.cpp:3624
#40 0xb5602274 in x11EventSourceDispatch (s=0x865fb28, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#41 0xb1ff783e in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#42 0xb1ff7be8 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#43 0xb1ff7ca8 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#44 0xb606c8bf in QEventDispatcherGlib::processEvents (this=this@entry=0x865cf90, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#45 0xb560232e in QGuiEventDispatcherGlib::processEvents (this=0x865cf90, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#46 0xb603b9f3 in QEventLoop::processEvents (this=this@entry=0xbfc96458, flags=...) at kernel/qeventloop.cpp:149
#47 0xb603bd19 in QEventLoop::exec (this=this@entry=0xbfc96458, flags=...) at kernel/qeventloop.cpp:204
#48 0xb604189e in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#49 0xb554b974 in QApplication::exec () at kernel/qapplication.cpp:3828
#50 0xb770e927 in kdemain (argc=1, argv=0xbfc965f4) at ../../../../plasma/desktop/shell/main.cpp:126
#51 0x0804855b in main (argc=1, argv=0xbfc965f4) at plasma-desktop_dummy.cpp:3

Possible duplicates by query: bug 327435, bug 326941, bug 325880, bug 325188.

Reported using DrKonqi