Application: plasma-desktop (0.4)
KDE Platform Version: 4.6.90 (4.7 RC1) (Compiled from sources)
Qt Version: 4.7.2
Operating System: Linux 2.6.38-gentoo-r2 x86_64
Distribution (Platform): Gentoo Packages

-- Information about the crash:
- What I was doing when the application crashed:
I have deleted multiple old activites. After that, plasma dekstop suddenly get very slow, than it crashes, and left a white screen behind

-- Backtrace:
Application: Plasma-Desktop-Umgebung (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0x7ff85e52b760 (LWP 13483))]

Thread 7 (Thread 0x7ff83b49d700 (LWP 13487)):
#0  0x00007ff85b1e48c3 in poll () from /lib64/libc.so.6
#1  0x00007ff857d0f3a9 in g_main_context_iterate () from /usr/lib64/libglib-2.0.so.0
#2  0x00007ff857d0f7fc in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007ff85cee6e66 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#4  0x00007ff85ceb9a82 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#5  0x00007ff85ceb9e64 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#6  0x00007ff85cdc649d in QThread::exec() () from /usr/lib64/qt4/libQtCore.so.4
#7  0x00007ff85ce99a98 in QInotifyFileSystemWatcherEngine::run() () from /usr/lib64/qt4/libQtCore.so.4
#8  0x00007ff85cdc94c5 in QThreadPrivate::start(void*) () from /usr/lib64/qt4/libQtCore.so.4
#9  0x00007ff84f47bbc3 in ?? () from //usr/lib64/opengl/nvidia/lib/libGL.so.1
#10 0x00007ff85cb37914 in start_thread () from /lib64/libpthread.so.0
#11 0x00007ff85b1ed48d in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7ff838f6d700 (LWP 13499)):
#0  0x00007ff85cb3c26c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007ff8520f6584 in QTWTF::TCMalloc_PageHeap::scavengerThread() () from /usr/lib64/qt4/libQtScript.so.4
#2  0x00007ff8520f65b9 in QTWTF::TCMalloc_PageHeap::runScavengerThread(void*) () from /usr/lib64/qt4/libQtScript.so.4
#3  0x00007ff84f47bbc3 in ?? () from //usr/lib64/opengl/nvidia/lib/libGL.so.1
#4  0x00007ff85cb37914 in start_thread () from /lib64/libpthread.so.0
#5  0x00007ff85b1ed48d in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7ff83a4e5700 (LWP 14151)):
#0  0x00007ff85cb3c26c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007ff85cdca08b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/qt4/libQtCore.so.4
#2  0x00007ff851388c44 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned(ThreadWeaver::Thread*) () from /usr/lib64/libthreadweaver.so.4
#3  0x00007ff85138be2b in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, ThreadWeaver::Job*) () from /usr/lib64/libthreadweaver.so.4
#4  0x00007ff85138be44 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, ThreadWeaver::Job*) () from /usr/lib64/libthreadweaver.so.4
#5  0x00007ff85138a3bf in ThreadWeaver::ThreadRunHelper::run(ThreadWeaver::WeaverImpl*, ThreadWeaver::Thread*) () from /usr/lib64/libthreadweaver.so.4
#6  0x00007ff85138a908 in ThreadWeaver::Thread::run() () from /usr/lib64/libthreadweaver.so.4
#7  0x00007ff85cdc94c5 in QThreadPrivate::start(void*) () from /usr/lib64/qt4/libQtCore.so.4
#8  0x00007ff84f47bbc3 in ?? () from //usr/lib64/opengl/nvidia/lib/libGL.so.1
#9  0x00007ff85cb37914 in start_thread () from /lib64/libpthread.so.0
#10 0x00007ff85b1ed48d in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7ff837853700 (LWP 14152)):
#0  0x00007ff85cb3c26c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007ff85cdca08b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/qt4/libQtCore.so.4
#2  0x00007ff851388c44 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned(ThreadWeaver::Thread*) () from /usr/lib64/libthreadweaver.so.4
#3  0x00007ff85138be2b in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, ThreadWeaver::Job*) () from /usr/lib64/libthreadweaver.so.4
#4  0x00007ff85138a3bf in ThreadWeaver::ThreadRunHelper::run(ThreadWeaver::WeaverImpl*, ThreadWeaver::Thread*) () from /usr/lib64/libthreadweaver.so.4
#5  0x00007ff85138a908 in ThreadWeaver::Thread::run() () from /usr/lib64/libthreadweaver.so.4
#6  0x00007ff85cdc94c5 in QThreadPrivate::start(void*) () from /usr/lib64/qt4/libQtCore.so.4
#7  0x00007ff84f47bbc3 in ?? () from //usr/lib64/opengl/nvidia/lib/libGL.so.1
#8  0x00007ff85cb37914 in start_thread () from /lib64/libpthread.so.0
#9  0x00007ff85b1ed48d in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7ff82d2b3700 (LWP 14153)):
#0  0x00007ff85cb3c26c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007ff85cdca08b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/qt4/libQtCore.so.4
#2  0x00007ff851388c44 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned(ThreadWeaver::Thread*) () from /usr/lib64/libthreadweaver.so.4
#3  0x00007ff85138be2b in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, ThreadWeaver::Job*) () from /usr/lib64/libthreadweaver.so.4
#4  0x00007ff85138be44 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, ThreadWeaver::Job*) () from /usr/lib64/libthreadweaver.so.4
#5  0x00007ff85138a3bf in ThreadWeaver::ThreadRunHelper::run(ThreadWeaver::WeaverImpl*, ThreadWeaver::Thread*) () from /usr/lib64/libthreadweaver.so.4
#6  0x00007ff85138a908 in ThreadWeaver::Thread::run() () from /usr/lib64/libthreadweaver.so.4
#7  0x00007ff85cdc94c5 in QThreadPrivate::start(void*) () from /usr/lib64/qt4/libQtCore.so.4
#8  0x00007ff84f47bbc3 in ?? () from //usr/lib64/opengl/nvidia/lib/libGL.so.1
#9  0x00007ff85cb37914 in start_thread () from /lib64/libpthread.so.0
#10 0x00007ff85b1ed48d in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7ff82cab2700 (LWP 14154)):
#0  0x00007ff85cb3c26c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007ff85cdca08b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/qt4/libQtCore.so.4
#2  0x00007ff851388c44 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned(ThreadWeaver::Thread*) () from /usr/lib64/libthreadweaver.so.4
#3  0x00007ff85138be2b in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, ThreadWeaver::Job*) () from /usr/lib64/libthreadweaver.so.4
#4  0x00007ff85138a3bf in ThreadWeaver::ThreadRunHelper::run(ThreadWeaver::WeaverImpl*, ThreadWeaver::Thread*) () from /usr/lib64/libthreadweaver.so.4
#5  0x00007ff85138a908 in ThreadWeaver::Thread::run() () from /usr/lib64/libthreadweaver.so.4
#6  0x00007ff85cdc94c5 in QThreadPrivate::start(void*) () from /usr/lib64/qt4/libQtCore.so.4
#7  0x00007ff84f47bbc3 in ?? () from //usr/lib64/opengl/nvidia/lib/libGL.so.1
#8  0x00007ff85cb37914 in start_thread () from /lib64/libpthread.so.0
#9  0x00007ff85b1ed48d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7ff85e52b760 (LWP 13483)):
[KCrash Handler]
#6  0x000000000289175a in ?? ()
#7  0x00007ff8444a8826 in TaskGroupItem::~TaskGroupItem() () from /usr/lib64/kde4/plasma_applet_tasks.so
#8  0x00007ff85ceccae8 in QObject::event(QEvent*) () from /usr/lib64/qt4/libQtCore.so.4
#9  0x00007ff85c696cbb in QGraphicsWidget::event(QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#10 0x00007ff85c0438fc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#11 0x00007ff85c048d9d in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#12 0x00007ff85df218c6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib64/libkdeui.so.5
#13 0x00007ff85cebad2b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/qt4/libQtCore.so.4
#14 0x00007ff85cebdcb1 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib64/qt4/libQtCore.so.4
#15 0x00007ff85cebdf1f in QCoreApplication::exec() () from /usr/lib64/qt4/libQtCore.so.4
#16 0x00007ff84b340643 in kdemain () from /usr/lib64/libkdeinit4_plasma-desktop.so
#17 0x0000000000408003 in launch(int, char const*, char const*, char const*, int, char const*, bool, char const*, bool, char const*) ()
#18 0x0000000000408c80 in handle_launcher_request(int, char const*) ()
#19 0x00000000004091ab in handle_requests(int) ()
#20 0x0000000000409d51 in main ()

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

Possible duplicates by query: bug 276885, bug 275286, bug 256239.

Reported using DrKonqi