Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.00 (4.7.0)
Qt Version: 4.7.2
Operating System: Linux 2.6.38-11-generic x86_64
Distribution: Ubuntu 11.04

-- Information about the crash:
- What I was doing when the application crashed:
Restarting the machine, the only open application was konsole.

The crash can be reproduced some of the time.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f7f66bc97a0 (LWP 1775))]

Thread 5 (Thread 0x7f7f43f84700 (LWP 1777)):
#0  0x00007f7f664bff03 in __poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=<value optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f7f5aef0104 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7f5aef0639 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7f636dc446 in QEventDispatcherGlib::processEvents (this=0x1aab2f0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f7f636b0882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f7f636b0abc in QEventLoop::exec (this=0x7f7f43f83db0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f7f635c7924 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:492
#7  0x00007f7f63692c2f in QInotifyFileSystemWatcherEngine::run (this=0x1aa9910) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f7f635ca175 in QThreadPrivate::start (arg=0x1aa9910) at thread/qthread_unix.cpp:320
#9  0x00007f7f5b9f7d8c in start_thread (arg=0x7f7f43f84700) at pthread_create.c:304
#10 0x00007f7f664cd04d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f7f416fc700 (LWP 1778)):
#0  0x00007f7f664bff03 in __poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=<value optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f7f5aef0104 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7f5aef0639 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7f636dc446 in QEventDispatcherGlib::processEvents (this=0x1c58160, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f7f636b0882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f7f636b0abc in QEventLoop::exec (this=0x7f7f416fbdb0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f7f635c7924 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:492
#7  0x00007f7f63692c2f in QInotifyFileSystemWatcherEngine::run (this=0x1c575b0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f7f635ca175 in QThreadPrivate::start (arg=0x1c575b0) at thread/qthread_unix.cpp:320
#9  0x00007f7f5b9f7d8c in start_thread (arg=0x7f7f416fc700) at pthread_create.c:304
#10 0x00007f7f664cd04d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f7f378de700 (LWP 1786)):
#0  0x00007f7f664bff03 in __poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=<value optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f7f5aef0104 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7f5aef09f2 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7f389f5c44 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f7f5af173e4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f7f5b9f7d8c in start_thread (arg=0x7f7f378de700) at pthread_create.c:304
#6  0x00007f7f664cd04d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f7f34a16700 (LWP 1889)):
#0  0x00007f7f6361b32c in qt_gettime () at tools/qelapsedtimer_unix.cpp:146
#1  0x00007f7f636dce3d in QTimerInfoList::updateCurrentTime (this=0x7f7f3c022810) at kernel/qeventdispatcher_unix.cpp:339
#2  0x00007f7f636dd1a5 in QTimerInfoList::timerWait (this=0x7f7f3c022810, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#3  0x00007f7f636dbc2c in timerSourcePrepareHelper (src=<value optimized out>, timeout=0x7f7f34a15c5c) at kernel/qeventdispatcher_glib.cpp:136
#4  0x00007f7f636dbcd5 in timerSourcePrepare (source=<value optimized out>, timeout=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#5  0x00007f7f5aeef0a2 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f7f5aeeff9d in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f7f5aef0639 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f7f636dc446 in QEventDispatcherGlib::processEvents (this=0x1e8afd0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#9  0x00007f7f636b0882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#10 0x00007f7f636b0abc in QEventLoop::exec (this=0x7f7f34a15de0, flags=...) at kernel/qeventloop.cpp:201
#11 0x00007f7f635c7924 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:492
#12 0x00007f7f635ca175 in QThreadPrivate::start (arg=0x1e27520) at thread/qthread_unix.cpp:320
#13 0x00007f7f5b9f7d8c in start_thread (arg=0x7f7f34a16700) at pthread_create.c:304
#14 0x00007f7f664cd04d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#15 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f7f66bc97a0 (LWP 1775)):
[KCrash Handler]
#6  0x00000000010df8ba in ?? ()
#7  0x00007f7f4e23bda4 in TaskGroupItem::~TaskGroupItem (this=0x1cabfc0, __in_chrg=<value optimized out>) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:82
#8  0x00007f7f4e23be49 in TaskGroupItem::~TaskGroupItem (this=0x1cabfc0, __in_chrg=<value optimized out>) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:83
#9  0x00007f7f636c54c8 in QObject::event (this=0x1cabfc0, e=<value optimized out>) at kernel/qobject.cpp:1209
#10 0x00007f7f630961bb in QGraphicsWidget::event (this=0x1cabfc0, event=0x1e27800) at graphicsview/qgraphicswidget.cpp:1423
#11 0x00007f7f62a6e9f4 in QApplicationPrivate::notify_helper (this=0xfef0b0, receiver=0x1cabfc0, e=0x1e27800) at kernel/qapplication.cpp:4462
#12 0x00007f7f62a733ba in QApplication::notify (this=<value optimized out>, receiver=0x1cabfc0, e=0x1e27800) at kernel/qapplication.cpp:4341
#13 0x00007f7f64351796 in KApplication::notify (this=0xfd5930, receiver=0x1cabfc0, event=0x1e27800) at ../../kdeui/kernel/kapplication.cpp:311
#14 0x00007f7f636b149c in QCoreApplication::notifyInternal (this=0xfd5930, receiver=0x1cabfc0, event=0x1e27800) at kernel/qcoreapplication.cpp:731
#15 0x00007f7f636b4c25 in sendEvent (receiver=0x0, event_type=52, data=0xf4db00) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#16 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=52, data=0xf4db00) at kernel/qcoreapplication.cpp:1372
#17 0x00007f7f636b4f0e in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1015
#18 0x00007f7f667bb9dc in kdemain (argc=1, argv=0x7fff580fb418) at ../../../../plasma/desktop/shell/main.cpp:120
#19 0x00007f7f66405eff in __libc_start_main (main=0x400740 <main(int, char**)>, argc=1, ubp_av=0x7fff580fb418, init=<value optimized out>, fini=<value optimized out>, rtld_fini=<value optimized out>, stack_end=0x7fff580fb408) at libc-start.c:226
#20 0x0000000000400669 in _start ()

This bug may be a duplicate of or related to bug 280602.

Possible duplicates by query: bug 280602, bug 279613, bug 279335, bug 279334, bug 279243.

Reported using DrKonqi