Bug 285205

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: Shutting down the computer.

This crash can be reproduced some of the time.

The crash can be reproduced some of the time.

-- Backtrace:
Application: Plasma-Desktop-Umgebung (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fcbd68067a0 (LWP 1616))]

Thread 10 (Thread 0x7fcbb5ede700 (LWP 1617)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fcbd02d4fe2 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007fcbd02d5019 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007fcbcb175efc in start_thread (arg=0x7fcbb5ede700) at pthread_create.c:304
#4  0x00007fcbd60e989d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 9 (Thread 0x7fcbb4e86700 (LWP 1618)):
#0  0x00007fcbd60dd773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fcbca668f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcbca669429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcbd32cff3e in QEventDispatcherGlib::processEvents (this=0x2c073c0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007fcbd32a3cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fcbd32a3ef7 in QEventLoop::exec (this=0x7fcbb4e85db0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007fcbd31bb27f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007fcbd3286cbf in QInotifyFileSystemWatcherEngine::run (this=0x2c0f1f0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fcbd31bdd05 in QThreadPrivate::start (arg=0x2c0f1f0) at thread/qthread_unix.cpp:331
#9  0x00007fcbcb175efc in start_thread (arg=0x7fcbb4e86700) at pthread_create.c:304
#10 0x00007fcbd60e989d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 8 (Thread 0x7fcba75e6700 (LWP 1619)):
#0  0x00007fcbca668058 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fcbca668dfd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcbca669429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcbd32cff3e in QEventDispatcherGlib::processEvents (this=0x1ff53c0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007fcbd32a3cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fcbd32a3ef7 in QEventLoop::exec (this=0x7fcba75e5db0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007fcbd31bb27f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007fcbd3286cbf in QInotifyFileSystemWatcherEngine::run (this=0x320ced0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fcbd31bdd05 in QThreadPrivate::start (arg=0x320ced0) at thread/qthread_unix.cpp:331
#9  0x00007fcbcb175efc in start_thread (arg=0x7fcba75e6700) at pthread_create.c:304
#10 0x00007fcbd60e989d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7fcba2e10700 (LWP 1626)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fcbd1777c2c in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007fcbd1777d59 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007fcbcb175efc in start_thread (arg=0x7fcba2e10700) at pthread_create.c:304
#4  0x00007fcbd60e989d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7fcba260f700 (LWP 1627)):
#0  0x00007fcbd60f7acb in pthread_mutex_unlock (mutex=0x38ca808) at forward.c:184
#1  0x00007fcbca66872e in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcbca668f82 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcbca669429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fcbd32cff3e in QEventDispatcherGlib::processEvents (this=0x38ca710, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007fcbd32a3cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007fcbd32a3ef7 in QEventLoop::exec (this=0x7fcba260ede0, flags=...) at kernel/qeventloop.cpp:201
#7  0x00007fcbd31bb27f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#8  0x00007fcbd31bdd05 in QThreadPrivate::start (arg=0x26898c0) at thread/qthread_unix.cpp:331
#9  0x00007fcbcb175efc in start_thread (arg=0x7fcba260f700) at pthread_create.c:304
#10 0x00007fcbd60e989d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7fcba1297700 (LWP 7415)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fcbd31be1ab in wait (time=18446744073709551615, this=0x2c65890) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2c51710, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007fcbcefb8864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2c4f670, th=0x35a2220) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007fcbcefbae0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x2c35310, th=0x35a2220) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007fcbcefbae24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2c35310, th=0x35a2220) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007fcbcefb9ccf in ThreadWeaver::ThreadRunHelper::run (this=0x7fcba1296e00, parent=0x2c4f670, th=0x35a2220) at ../../../threadweaver/Weaver/Thread.cpp:87
#7  0x00007fcbcefb9d5b in ThreadWeaver::Thread::run (this=0x35a2220) at ../../../threadweaver/Weaver/Thread.cpp:142
#8  0x00007fcbd31bdd05 in QThreadPrivate::start (arg=0x35a2220) at thread/qthread_unix.cpp:331
#9  0x00007fcbcb175efc in start_thread (arg=0x7fcba1297700) at pthread_create.c:304
#10 0x00007fcbd60e989d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7fcba408a700 (LWP 7416)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fcbd31be1ab in wait (time=18446744073709551615, this=0x2c65890) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2c51710, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007fcbcefb8864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2c4f670, th=0x7fcbb0007e30) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007fcbcefbae0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x2c35310, th=0x7fcbb0007e30) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007fcbcefb9ccf in ThreadWeaver::ThreadRunHelper::run (this=0x7fcba4089e00, parent=0x2c4f670, th=0x7fcbb0007e30) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007fcbcefb9d5b in ThreadWeaver::Thread::run (this=0x7fcbb0007e30) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007fcbd31bdd05 in QThreadPrivate::start (arg=0x7fcbb0007e30) at thread/qthread_unix.cpp:331
#8  0x00007fcbcb175efc in start_thread (arg=0x7fcba408a700) at pthread_create.c:304
#9  0x00007fcbd60e989d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fcb5d02b700 (LWP 7417)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fcbd31be1ab in wait (time=18446744073709551615, this=0x2c65890) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2c51710, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007fcbcefb8864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2c4f670, th=0x4cf1190) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007fcbcefbae0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x2c35310, th=0x4cf1190) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007fcbcefb9ccf in ThreadWeaver::ThreadRunHelper::run (this=0x7fcb5d02ae00, parent=0x2c4f670, th=0x4cf1190) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007fcbcefb9d5b in ThreadWeaver::Thread::run (this=0x4cf1190) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007fcbd31bdd05 in QThreadPrivate::start (arg=0x4cf1190) at thread/qthread_unix.cpp:331
#8  0x00007fcbcb175efc in start_thread (arg=0x7fcb5d02b700) at pthread_create.c:304
#9  0x00007fcbd60e989d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fcb5c82a700 (LWP 7418)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fcbd31be1ab in wait (time=18446744073709551615, this=0x2c65890) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2c51710, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007fcbcefb8864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2c4f670, th=0x4b8af00) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007fcbcefbae0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x2c35310, th=0x4b8af00) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007fcbcefb9ccf in ThreadWeaver::ThreadRunHelper::run (this=0x7fcb5c829e00, parent=0x2c4f670, th=0x4b8af00) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007fcbcefb9d5b in ThreadWeaver::Thread::run (this=0x4b8af00) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007fcbd31bdd05 in QThreadPrivate::start (arg=0x4b8af00) at thread/qthread_unix.cpp:331
#8  0x00007fcbcb175efc in start_thread (arg=0x7fcb5c82a700) at pthread_create.c:304
#9  0x00007fcbd60e989d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fcbd68067a0 (LWP 1616)):
[KCrash Handler]
#6  0x00000000020873fa in ?? ()
#7  0x00007fcbbc4a1b96 in TaskGroupItem::~TaskGroupItem (this=0x4de9180, __in_chrg=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:82
#8  0x00007fcbbc4a1c49 in TaskGroupItem::~TaskGroupItem (this=0x4de9180, __in_chrg=<optimized out>) at ../../../../../plasma/desktop/applets/tasks/taskgroupitem.cpp:83
#9  0x00007fcbd32bba88 in QObject::event (this=0x4de9180, e=<optimized out>) at kernel/qobject.cpp:1200
#10 0x00007fcbd2c7389b in QGraphicsWidget::event (this=0x4de9180, event=0x4a01ff0) at graphicsview/qgraphicswidget.cpp:1455
#11 0x00007fcbd2655424 in notify_helper (e=0x4a01ff0, receiver=0x4de9180, this=0x1e74fb0) at kernel/qapplication.cpp:4486
#12 QApplicationPrivate::notify_helper (this=0x1e74fb0, receiver=0x4de9180, e=0x4a01ff0) at kernel/qapplication.cpp:4458
#13 0x00007fcbd265a291 in QApplication::notify (this=0x1e5a490, receiver=0x4de9180, e=0x4a01ff0) at kernel/qapplication.cpp:4365
#14 0x00007fcbd3f53126 in KApplication::notify (this=0x1e5a490, receiver=0x4de9180, event=0x4a01ff0) at ../../kdeui/kernel/kapplication.cpp:311
#15 0x00007fcbd32a4afc in QCoreApplication::notifyInternal (this=0x1e5a490, receiver=0x4de9180, event=0x4a01ff0) at kernel/qcoreapplication.cpp:787
#16 0x00007fcbd32a851f in sendEvent (event=0x4a01ff0, receiver=0x4de9180) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#17 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=52, data=0x1df8430) at kernel/qcoreapplication.cpp:1428
#18 0x00007fcbd32a87c4 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1071
#19 0x00007fcbd63e81a3 in kdemain (argc=1, argv=0x7fff4f933588) at ../../../../plasma/desktop/shell/main.cpp:120
#20 0x00007fcbd602930d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fff4f933588, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff4f933578) 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 285180, bug 285104, bug 285045, bug 285019, bug 284948.

Reported using DrKonqi