Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.3 (4.7.3)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-14-generic-pae i686
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed:

Closing an application which is a virtual application run through Citrix Reveiver 12
(At work, where I also use Kubuntu 4.7) the same happens. Also when trying to switch Citrix Receiver applications)


- Unusual behavior I noticed:

When working in multiple Citrix Receiver virtualized applications they are grouped. Sometimes the applications refuse to switch.

The crash can be reproduced some of the time.

-- Backtrace:
Application: Plasma bureaublad-shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb11fb730 (LWP 1586))]

Thread 4 (Thread 0xaa430b70 (LWP 1587)):
#0  0xb3031d10 in clock_gettime () from /lib/i386-linux-gnu/librt.so.1
#1  0xb641d7d5 in do_gettime (frac=0xaa430000, sec=0xaa42fff8) at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0xb64f04b6 in QTimerInfoList::updateCurrentTime (this=0xa9b01a7c) at kernel/qeventdispatcher_unix.cpp:339
#4  0xb64f080a in QTimerInfoList::timerWait (this=0xa9b01a7c, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#5  0xb64ef053 in timerSourcePrepareHelper (src=<optimized out>, timeout=0xaa43010c) at kernel/qeventdispatcher_glib.cpp:136
#6  0xb64ef0ed in timerSourcePrepare (source=0xa9b01a48, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#7  0xb2f7688c in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0xb2f77637 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#9  0xb2f77c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#10 0xb64efb37 in QEventDispatcherGlib::processEvents (this=0x9f24430, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#11 0xb64c01dd in QEventLoop::processEvents (this=0xaa430290, flags=...) at kernel/qeventloop.cpp:149
#12 0xb64c0421 in QEventLoop::exec (this=0xaa430290, flags=...) at kernel/qeventloop.cpp:201
#13 0xb63c390b in QThread::exec (this=0x9f22c70) at thread/qthread.cpp:498
#14 0xb64a0e2d in QInotifyFileSystemWatcherEngine::run (this=0x9f22c70) at io/qfilesystemwatcher_inotify.cpp:248
#15 0xb63c67b3 in QThreadPrivate::start (arg=0x9f22c70) at thread/qthread_unix.cpp:331
#16 0xb3091d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#17 0xb76a40ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 3 (Thread 0xa87d2b70 (LWP 1588)):
#0  0xb3031d10 in clock_gettime () from /lib/i386-linux-gnu/librt.so.1
#1  0xb641d7d5 in do_gettime (frac=0xa87d2000, sec=0xa87d1ff8) at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0xb64f04b6 in QTimerInfoList::updateCurrentTime (this=0xa9b031bc) at kernel/qeventdispatcher_unix.cpp:339
#4  0xb64f080a in QTimerInfoList::timerWait (this=0xa9b031bc, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#5  0xb64ef053 in timerSourcePrepareHelper (src=<optimized out>, timeout=0xa87d210c) at kernel/qeventdispatcher_glib.cpp:136
#6  0xb64ef0ed in timerSourcePrepare (source=0xa9b03188, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#7  0xb2f7688c in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0xb2f77637 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#9  0xb2f77c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#10 0xb64efb37 in QEventDispatcherGlib::processEvents (this=0xa9b01ba8, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#11 0xb64c01dd in QEventLoop::processEvents (this=0xa87d2290, flags=...) at kernel/qeventloop.cpp:149
#12 0xb64c0421 in QEventLoop::exec (this=0xa87d2290, flags=...) at kernel/qeventloop.cpp:201
#13 0xb63c390b in QThread::exec (this=0x9b5ff18) at thread/qthread.cpp:498
#14 0xb64a0e2d in QInotifyFileSystemWatcherEngine::run (this=0x9b5ff18) at io/qfilesystemwatcher_inotify.cpp:248
#15 0xb63c67b3 in QThreadPrivate::start (arg=0x9b5ff18) at thread/qthread_unix.cpp:331
#16 0xb3091d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#17 0xb76a40ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 2 (Thread 0xa6e23b70 (LWP 1594)):
#0  0xb76b2103 in ?? () from /lib/i386-linux-gnu/libc.so.6
#1  0xb7695420 in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0xb2f8634b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb2f77896 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb2f77f9b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xa7703cea in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#6  0xb2f9e5f4 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#7  0xb3091d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#8  0xb76a40ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 1 (Thread 0xb11fb730 (LWP 1586)):
[KCrash Handler]
#7  isNull (this=0x4) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:568
#8  operator! (this=0x4) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:574
#9  TaskManager::TaskItem::task (this=0x9e990f8) at ../../../libs/taskmanager/taskitem.cpp:113
#10 0xafcbd590 in WindowTaskItem::publishIconGeometry (this=0xaa81a78, rect=...) at ../../../../../plasma/desktop/applets/tasks/windowtaskitem.cpp:130
#11 0xafccfb24 in TaskGroupItem::publishIconGeometry (this=0xaab2e78, rect=...) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:1438
#12 0xafccf801 in publishIconGeometry (this=0xaab2e78) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:1424
#13 TaskGroupItem::publishIconGeometry (this=0xaab2e78) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:1416
#14 0xafcce688 in AbstractTaskItem::timerEvent (this=0xaab2e78, event=0xbfbd1d7c) at ../../../../../plasma/desktop/applets/tasks/abstracttaskitem.cpp:439
#15 0xb64d9994 in QObject::event (this=0xaab2e78, e=0xbfbd1d7c) at kernel/qobject.cpp:1181
#16 0xb60abbd4 in QGraphicsWidget::event (this=0xaab2e78, event=0xbfbd1d7c) at graphicsview/qgraphicswidget.cpp:1455
#17 0xb59ecd54 in notify_helper (e=0xbfbd1d7c, receiver=0xaab2e78, this=0x996b9e8) at kernel/qapplication.cpp:4486
#18 QApplicationPrivate::notify_helper (this=0x996b9e8, receiver=0xaab2e78, e=0xbfbd1d7c) at kernel/qapplication.cpp:4458
#19 0xb59f2103 in QApplication::notify (this=0xbfbd1d7c, receiver=0xaab2e78, e=0xbfbd1d7c) at kernel/qapplication.cpp:3886
#20 0xb6b26681 in KApplication::notify (this=0x995f4e0, receiver=0xaab2e78, event=0xbfbd1d7c) at ../../kdeui/kernel/kapplication.cpp:311
#21 0xb64c119e in QCoreApplication::notifyInternal (this=0x995f4e0, receiver=0xaab2e78, event=0xbfbd1d7c) at kernel/qcoreapplication.cpp:787
#22 0xb64f1c10 in sendEvent (event=0xbfbd1d7c, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#23 QTimerInfoList::activateTimers (this=0x996e934) at kernel/qeventdispatcher_unix.cpp:603
#24 0xb64ef155 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#25 idleTimerSourceDispatch (source=0x996f700) at kernel/qeventdispatcher_glib.cpp:231
#26 0xb2f7725f in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#27 0xb2f77990 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#28 0xb2f77c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#29 0xb64efada in QEventDispatcherGlib::processEvents (this=0x991c218, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#30 0xb5aa4e3a in QGuiEventDispatcherGlib::processEvents (this=0x991c218, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#31 0xb64c01dd in QEventLoop::processEvents (this=0xbfbd1ff4, flags=...) at kernel/qeventloop.cpp:149
#32 0xb64c0421 in QEventLoop::exec (this=0xbfbd1ff4, flags=...) at kernel/qeventloop.cpp:201
#33 0xb64c519d in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#34 0xb59ea8f4 in QApplication::exec () at kernel/qapplication.cpp:3760
#35 0xb779518b in kdemain (argc=1, argv=0xbfbd21f4) at ../../../../plasma/desktop/shell/main.cpp:120
#36 0x0804850b in main (argc=1, argv=0xbfbd21f4) at plasma-desktop_dummy.cpp:3

Possible duplicates by query: bug 291689, bug 291680, bug 291679, bug 291664, bug 291642.

Reported using DrKonqi