Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.2 (4.7.2)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-12-generic x86_64
Distribution: Ubuntu 11.10

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

plasma failed during kde logout, everytime.
I have intel gpu.

The crash can be reproduced every time.

-- Backtrace:
Application: Shell plochy Plasma (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f23d628f7a0 (LWP 9251))]

Thread 5 (Thread 0x7f23b166b700 (LWP 9252)):
#0  0x00007f23cac0e034 in __pthread_mutex_lock (mutex=0x1bab3d8) at pthread_mutex_lock.c:61
#1  0x00007f23ca0fe023 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f23ca0fedfd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f23ca0ff429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f23d2d65f3e in QEventDispatcherGlib::processEvents (this=0x1baacc0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007f23d2d39cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f23d2d39ef7 in QEventLoop::exec (this=0x7f23b166adb0, flags=...) at kernel/qeventloop.cpp:201
#7  0x00007f23d2c5127f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#8  0x00007f23d2d1ccbf in QInotifyFileSystemWatcherEngine::run (this=0x1baa0a0) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007f23d2c53d05 in QThreadPrivate::start (arg=0x1baa0a0) at thread/qthread_unix.cpp:331
#10 0x00007f23cac0befc in start_thread (arg=0x7f23b166b700) at pthread_create.c:304
#11 0x00007f23d5b7f89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f23b0a3e700 (LWP 9253)):
#0  0x00007f23d2d66a54 in begin (this=0x1bd8a60) at ../../include/QtCore/../../src/corelib/tools/qlist.h:97
#1  constBegin (this=0x1bd8a60) at ../../include/QtCore/../../src/corelib/tools/qlist.h:256
#2  QTimerInfoList::timerWait (this=0x1bd8a60, tm=...) at kernel/qeventdispatcher_unix.cpp:447
#3  0x00007f23d2d6544c in timerSourcePrepareHelper (src=<optimized out>, timeout=0x7f23b0a3dc1c) at kernel/qeventdispatcher_glib.cpp:136
#4  0x00007f23d2d654f5 in timerSourcePrepare (source=<optimized out>, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#5  0x00007f23ca0fdff2 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f23ca0fedfd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f23ca0ff429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f23d2d65f3e in QEventDispatcherGlib::processEvents (this=0x1bf76a0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#9  0x00007f23d2d39cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#10 0x00007f23d2d39ef7 in QEventLoop::exec (this=0x7f23b0a3ddb0, flags=...) at kernel/qeventloop.cpp:201
#11 0x00007f23d2c5127f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#12 0x00007f23d2d1ccbf in QInotifyFileSystemWatcherEngine::run (this=0x1bf9600) at io/qfilesystemwatcher_inotify.cpp:248
#13 0x00007f23d2c53d05 in QThreadPrivate::start (arg=0x1bf9600) at thread/qthread_unix.cpp:331
#14 0x00007f23cac0befc in start_thread (arg=0x7f23b0a3e700) at pthread_create.c:304
#15 0x00007f23d5b7f89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#16 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f23a99e8700 (LWP 9259)):
#0  0x00007f23d5b73773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f23ca0fef68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f23ca0ff792 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f23aa4c6516 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f23ca1242b6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f23cac0befc in start_thread (arg=0x7f23a99e8700) at pthread_create.c:304
#6  0x00007f23d5b7f89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f23a21cd700 (LWP 9346)):
#0  0x00007f23d5b73773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f23ca0fef68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f23ca0ff429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f23d2d65f3e in QEventDispatcherGlib::processEvents (this=0x20d1a80, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f23d2d39cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f23d2d39ef7 in QEventLoop::exec (this=0x7f23a21ccde0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f23d2c5127f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f23d2c53d05 in QThreadPrivate::start (arg=0x20cd8d0) at thread/qthread_unix.cpp:331
#8  0x00007f23cac0befc in start_thread (arg=0x7f23a21cd700) at pthread_create.c:304
#9  0x00007f23d5b7f89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f23d628f7a0 (LWP 9251)):
[KCrash Handler]
#6  0x00000000013bdb7a in ?? ()
#7  0x00007f23bbe08b96 in TaskGroupItem::~TaskGroupItem (this=0x3523b10, __in_chrg=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:82
#8  0x00007f23bbe08c49 in TaskGroupItem::~TaskGroupItem (this=0x3523b10, __in_chrg=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:83
#9  0x00007f23d2d51a88 in QObject::event (this=0x3523b10, e=<optimized out>) at kernel/qobject.cpp:1200
#10 0x00007f23d270989b in QGraphicsWidget::event (this=0x3523b10, event=0x21cb860) at graphicsview/qgraphicswidget.cpp:1455
#11 0x00007f23d20eb424 in notify_helper (e=0x21cb860, receiver=0x3523b10, this=0x1198010) at kernel/qapplication.cpp:4486
#12 QApplicationPrivate::notify_helper (this=0x1198010, receiver=0x3523b10, e=0x21cb860) at kernel/qapplication.cpp:4458
#13 0x00007f23d20f0291 in QApplication::notify (this=0x1189ee0, receiver=0x3523b10, e=0x21cb860) at kernel/qapplication.cpp:4365
#14 0x00007f23d39e9126 in KApplication::notify (this=0x1189ee0, receiver=0x3523b10, event=0x21cb860) at ../../kdeui/kernel/kapplication.cpp:311
#15 0x00007f23d2d3aafc in QCoreApplication::notifyInternal (this=0x1189ee0, receiver=0x3523b10, event=0x21cb860) at kernel/qcoreapplication.cpp:787
#16 0x00007f23d2d3e51f in sendEvent (event=0x21cb860, receiver=0x3523b10) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#17 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=52, data=0x1120430) at kernel/qcoreapplication.cpp:1428
#18 0x00007f23d2d3e7c4 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1071
#19 0x00007f23d5e7e1a3 in kdemain (argc=1, argv=0x7fff1f89d718) at ../../../../plasma/desktop/shell/main.cpp:120
#20 0x00007f23d5abf30d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fff1f89d718, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff1f89d708) at libc-start.c:226
#21 0x0000000000400671 in _start ()

This bug may be a duplicate of or related to bug 285270.

Possible duplicates by query: bug 285270, bug 285205, bug 285180, bug 285104, bug 285045.

Reported using DrKonqi