Bug 287962

Summary: Crash during normal shutdown
Product: [Unmaintained] plasma4 Reporter: Damon Anderson <damon>
Component: generalAssignee: Plasma Bugs List <plasma-bugs>
Status: RESOLVED FIXED    
Severity: crash CC: pinakvashi
Priority: NOR    
Version: unspecified   
Target Milestone: ---   
Platform: Ubuntu   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:
Attachments: New crash information added by DrKonqi

Description Damon Anderson 2011-12-01 07:43:10 UTC 
Application: plasma-desktop (0.4)
KDE Platform Version: 4.7.2 (4.7.2)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-13-generic x86_64
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed:
Did a normal KDE UI shutdown, and was presented with a crash. Prior to this my audio had also ceased to function.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7ffe945507c0 (LWP 2110))]

Thread 12 (Thread 0x7ffe71062700 (LWP 2112)):
#0  0x00007ffe884b8694 in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007ffe884b9d81 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffe884ba429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffe91120f3e in QEventDispatcherGlib::processEvents (this=0x1e8cc10, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007ffe910f4cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007ffe910f4ef7 in QEventLoop::exec (this=0x7ffe71061d90, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007ffe9100c27f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007ffe910d7cbf in QInotifyFileSystemWatcherEngine::run (this=0x1e8c3b0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007ffe9100ed05 in QThreadPrivate::start (arg=0x1e8c3b0) at thread/qthread_unix.cpp:331
#9  0x00007ffe88fc6efc in start_thread (arg=0x7ffe71062700) at pthread_create.c:304
#10 0x00007ffe93f3a89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 11 (Thread 0x7ffe6a4c0700 (LWP 2113)):
#0  QElapsedTimer::isMonotonic () at tools/qelapsedtimer_unix.cpp:106
#1  0x00007ffe911219ed in QTimerInfoList::repairTimersIfNeeded (this=0x2099ed0) at kernel/qeventdispatcher_unix.cpp:395
#2  0x00007ffe91121a51 in QTimerInfoList::timerWait (this=0x2099ed0, tm=...) at kernel/qeventdispatcher_unix.cpp:443
#3  0x00007ffe9112044c in timerSourcePrepareHelper (src=<optimized out>, timeout=0x7ffe6a4bfbfc) at kernel/qeventdispatcher_glib.cpp:136
#4  0x00007ffe911204f5 in timerSourcePrepare (source=<optimized out>, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#5  0x00007ffe884b8ff2 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007ffe884b9dfd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007ffe884ba429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007ffe91120f3e in QEventDispatcherGlib::processEvents (this=0x209dca0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#9  0x00007ffe910f4cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#10 0x00007ffe910f4ef7 in QEventLoop::exec (this=0x7ffe6a4bfd90, flags=...) at kernel/qeventloop.cpp:201
#11 0x00007ffe9100c27f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#12 0x00007ffe910d7cbf in QInotifyFileSystemWatcherEngine::run (this=0x209d600) at io/qfilesystemwatcher_inotify.cpp:248
#13 0x00007ffe9100ed05 in QThreadPrivate::start (arg=0x209d600) at thread/qthread_unix.cpp:331
#14 0x00007ffe88fc6efc in start_thread (arg=0x7ffe6a4c0700) at pthread_create.c:304
#15 0x00007ffe93f3a89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#16 0x0000000000000000 in ?? ()

Thread 10 (Thread 0x7ffe67271700 (LWP 2119)):
#0  0x00007ffe93f2e773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007ffe884b9f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffe884ba792 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffe67d4f516 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007ffe884df2b6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ffe88fc6efc in start_thread (arg=0x7ffe67271700) at pthread_create.c:304
#6  0x00007ffe93f3a89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 9 (Thread 0x7ffe5ffff700 (LWP 2895)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007ffe9100f1ab in wait (time=18446744073709551615, this=0x1ee9900) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1ee71e0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007ffe8ce09864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1f57960, th=0x29e4f00) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007ffe8ce0be0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x1ee74e0, th=0x29e4f00) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007ffe8ce0be24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1ee74e0, th=0x29e4f00) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007ffe8ce0accf in ThreadWeaver::ThreadRunHelper::run (this=0x7ffe5fffede0, parent=0x1f57960, th=0x29e4f00) at ../../../threadweaver/Weaver/Thread.cpp:87
#7  0x00007ffe8ce0ad5b in ThreadWeaver::Thread::run (this=0x29e4f00) at ../../../threadweaver/Weaver/Thread.cpp:142
#8  0x00007ffe9100ed05 in QThreadPrivate::start (arg=0x29e4f00) at thread/qthread_unix.cpp:331
#9  0x00007ffe88fc6efc in start_thread (arg=0x7ffe5ffff700) at pthread_create.c:304
#10 0x00007ffe93f3a89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 8 (Thread 0x7ffe6967b700 (LWP 2896)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007ffe9100f1ab in wait (time=18446744073709551615, this=0x1ee9900) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1ee71e0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007ffe8ce09864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1f57960, th=0x234b6a0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007ffe8ce0be0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x1ee74e0, th=0x234b6a0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007ffe8ce0accf in ThreadWeaver::ThreadRunHelper::run (this=0x7ffe6967ade0, parent=0x1f57960, th=0x234b6a0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007ffe8ce0ad5b in ThreadWeaver::Thread::run (this=0x234b6a0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007ffe9100ed05 in QThreadPrivate::start (arg=0x234b6a0) at thread/qthread_unix.cpp:331
#8  0x00007ffe88fc6efc in start_thread (arg=0x7ffe6967b700) at pthread_create.c:304
#9  0x00007ffe93f3a89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7ffe67a72700 (LWP 2897)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007ffe9100f1ab in wait (time=18446744073709551615, this=0x1ee9900) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1ee71e0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007ffe8ce09864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1f57960, th=0x2db3c80) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007ffe8ce0be0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x1ee74e0, th=0x2db3c80) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007ffe8ce0accf in ThreadWeaver::ThreadRunHelper::run (this=0x7ffe67a71de0, parent=0x1f57960, th=0x2db3c80) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007ffe8ce0ad5b in ThreadWeaver::Thread::run (this=0x2db3c80) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007ffe9100ed05 in QThreadPrivate::start (arg=0x2db3c80) at thread/qthread_unix.cpp:331
#8  0x00007ffe88fc6efc in start_thread (arg=0x7ffe67a72700) at pthread_create.c:304
#9  0x00007ffe93f3a89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7ffe5c6b7700 (LWP 2898)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007ffe9100f1ab in wait (time=18446744073709551615, this=0x1ee9900) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1ee71e0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007ffe8ce09864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1f57960, th=0x1ef83d0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007ffe8ce0be0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x1ee74e0, th=0x1ef83d0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007ffe8ce0be24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1ee74e0, th=0x1ef83d0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007ffe8ce0be24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1ee74e0, th=0x1ef83d0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#7  0x00007ffe8ce0accf in ThreadWeaver::ThreadRunHelper::run (this=0x7ffe5c6b6de0, parent=0x1f57960, th=0x1ef83d0) at ../../../threadweaver/Weaver/Thread.cpp:87
#8  0x00007ffe8ce0ad5b in ThreadWeaver::Thread::run (this=0x1ef83d0) at ../../../threadweaver/Weaver/Thread.cpp:142
#9  0x00007ffe9100ed05 in QThreadPrivate::start (arg=0x1ef83d0) at thread/qthread_unix.cpp:331
#10 0x00007ffe88fc6efc in start_thread (arg=0x7ffe5c6b7700) at pthread_create.c:304
#11 0x00007ffe93f3a89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7ffe5beb6700 (LWP 2899)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007ffe9100f1ab in wait (time=18446744073709551615, this=0x1ee9900) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1ee71e0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007ffe8ce09864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1f57960, th=0x296b420) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007ffe8ce0be0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x1ee74e0, th=0x296b420) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007ffe8ce0accf in ThreadWeaver::ThreadRunHelper::run (this=0x7ffe5beb5de0, parent=0x1f57960, th=0x296b420) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007ffe8ce0ad5b in ThreadWeaver::Thread::run (this=0x296b420) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007ffe9100ed05 in QThreadPrivate::start (arg=0x296b420) at thread/qthread_unix.cpp:331
#8  0x00007ffe88fc6efc in start_thread (arg=0x7ffe5beb6700) at pthread_create.c:304
#9  0x00007ffe93f3a89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7ffe5b6b5700 (LWP 16676)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007ffe9100f1ab in wait (time=18446744073709551615, this=0x1ee9900) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1ee71e0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007ffe8ce09864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1f57960, th=0x3396ca0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007ffe8ce0be0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x1ee74e0, th=0x3396ca0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007ffe8ce0be24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1ee74e0, th=0x3396ca0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007ffe8ce0accf in ThreadWeaver::ThreadRunHelper::run (this=0x7ffe5b6b4de0, parent=0x1f57960, th=0x3396ca0) at ../../../threadweaver/Weaver/Thread.cpp:87
#7  0x00007ffe8ce0ad5b in ThreadWeaver::Thread::run (this=0x3396ca0) at ../../../threadweaver/Weaver/Thread.cpp:142
#8  0x00007ffe9100ed05 in QThreadPrivate::start (arg=0x3396ca0) at thread/qthread_unix.cpp:331
#9  0x00007ffe88fc6efc in start_thread (arg=0x7ffe5b6b5700) at pthread_create.c:304
#10 0x00007ffe93f3a89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7ffe5a555700 (LWP 16677)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007ffe9100f1ab in wait (time=18446744073709551615, this=0x1ee9900) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1ee71e0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007ffe8ce09864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1f57960, th=0x7ffe60003140) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007ffe8ce0be0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x1ee74e0, th=0x7ffe60003140) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007ffe8ce0accf in ThreadWeaver::ThreadRunHelper::run (this=0x7ffe5a554de0, parent=0x1f57960, th=0x7ffe60003140) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007ffe8ce0ad5b in ThreadWeaver::Thread::run (this=0x7ffe60003140) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007ffe9100ed05 in QThreadPrivate::start (arg=0x7ffe60003140) at thread/qthread_unix.cpp:331
#8  0x00007ffe88fc6efc in start_thread (arg=0x7ffe5a555700) at pthread_create.c:304
#9  0x00007ffe93f3a89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7ffe59d54700 (LWP 16678)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007ffe9100f1ab in wait (time=18446744073709551615, this=0x1ee9900) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1ee71e0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007ffe8ce09864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1f57960, th=0x20d3840) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007ffe8ce0be0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x1ee74e0, th=0x20d3840) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007ffe8ce0accf in ThreadWeaver::ThreadRunHelper::run (this=0x7ffe59d53de0, parent=0x1f57960, th=0x20d3840) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007ffe8ce0ad5b in ThreadWeaver::Thread::run (this=0x20d3840) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007ffe9100ed05 in QThreadPrivate::start (arg=0x20d3840) at thread/qthread_unix.cpp:331
#8  0x00007ffe88fc6efc in start_thread (arg=0x7ffe59d54700) at pthread_create.c:304
#9  0x00007ffe93f3a89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7ffe945507c0 (LWP 2110)):
[KCrash Handler]
#6  0x00007ffe90f60790 in vtable for QGraphicsLayoutItem () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#7  0x00007ffe7a0e9b96 in TaskGroupItem::~TaskGroupItem (this=0x37f5d10, __in_chrg=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:82
#8  0x00007ffe7a0e9c49 in TaskGroupItem::~TaskGroupItem (this=0x37f5d10, __in_chrg=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:83
#9  0x00007ffe9110ca88 in QObject::event (this=0x37f5d10, e=<optimized out>) at kernel/qobject.cpp:1200
#10 0x00007ffe90ac489b in QGraphicsWidget::event (this=0x37f5d10, event=0x1e370e0) at graphicsview/qgraphicswidget.cpp:1455
#11 0x00007ffe904a6424 in notify_helper (e=0x1e370e0, receiver=0x37f5d10, this=0x1486bc0) at kernel/qapplication.cpp:4486
#12 QApplicationPrivate::notify_helper (this=0x1486bc0, receiver=0x37f5d10, e=0x1e370e0) at kernel/qapplication.cpp:4458
#13 0x00007ffe904ab291 in QApplication::notify (this=0x1473fa0, receiver=0x37f5d10, e=0x1e370e0) at kernel/qapplication.cpp:4365
#14 0x00007ffe91da4126 in KApplication::notify (this=0x1473fa0, receiver=0x37f5d10, event=0x1e370e0) at ../../kdeui/kernel/kapplication.cpp:311
#15 0x00007ffe910f5afc in QCoreApplication::notifyInternal (this=0x1473fa0, receiver=0x37f5d10, event=0x1e370e0) at kernel/qcoreapplication.cpp:787
#16 0x00007ffe910f951f in sendEvent (event=0x1e370e0, receiver=0x37f5d10) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#17 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=52, data=0x1415430) at kernel/qcoreapplication.cpp:1428
#18 0x00007ffe910f97c4 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1071
#19 0x00007ffe942391a3 in kdemain (argc=1, argv=0x7fffca0352f8) at ../../../../plasma/desktop/shell/main.cpp:120
#20 0x00007ffe93e7a30d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fffca0352f8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffca0352e8) at libc-start.c:226
#21 0x0000000000400671 in _start ()

This bug may be a duplicate of or related to bug 275286.

Possible duplicates by query: bug 287333, bug 287205, bug 286733, bug 285707, bug 285543.

Reported using DrKonqi
Comment 1 pinakvashi 2011-12-07 03:49:13 UTC 
Created attachment 66459 [details]
New crash information added by DrKonqi

plasma-desktop (0.4) on KDE Platform 4.7.3 (4.7.3) using Qt 4.7.4

- What I was doing when the application crashed:

shut down normally. itś not every time, it occors one in three times

-- Backtrace (Reduced):
#7  0x00007f5e463e3b96 in TaskGroupItem::~TaskGroupItem (this=0x30dec90, __in_chrg=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:82
#8  0x00007f5e463e3c59 in TaskGroupItem::~TaskGroupItem (this=0x30dec90, __in_chrg=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:84
#9  0x00007f5e5d00ea88 in QObject::event (this=0x30dec90, e=<optimized out>) at kernel/qobject.cpp:1200
#10 0x00007f5e5c9c689b in QGraphicsWidget::event (this=0x30dec90, event=0x354d1f0) at graphicsview/qgraphicswidget.cpp:1455
#11 0x00007f5e5c3a8424 in notify_helper (e=0x354d1f0, receiver=0x30dec90, this=0x19b4100) at kernel/qapplication.cpp:4486