Bug 251896

Application: plasma-desktop (0.3)
KDE Platform Version: 4.4.2 (KDE 4.4.2)
Qt Version: 4.6.2
Operating System: Linux 2.6.32-24-generic x86_64
Distribution: Ubuntu 10.04.1 LTS

-- Information about the crash:
My screen had gone blank as I was idle and I had the Facebook widget on my screen.  I noticed it wasn't refreshing, so I Right Clicked and selected reload.  It crashed and I was just going to reload the widget, so I closed the current one and searched through all of the widgets but i didn't see it, so I typed fa and before I could hit the c, the crash report was on the screen.  I know I didn't hit any of the arrow keys.  I'm running Lucid Lynx Kubuntu with all of the updates/upgrades as of 9-20-2010.

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f1cb5a85760 (LWP 1535))]

Thread 7 (Thread 0x7f1c8bfff710 (LWP 1537)):
#0  0x00007f1cb3cd0a2d in __pthread_mutex_unlock_usercnt (mutex=0x1afa878) at pthread_mutex_unlock.c:52
#1  __pthread_mutex_unlock (mutex=0x1afa878) at pthread_mutex_unlock.c:290
#2  0x00007f1caf43649c in ?? () from /lib/libglib-2.0.so.0
#3  0x00007f1caf4368fc in g_main_context_iteration () from /lib/libglib-2.0.so.0
#4  0x00007f1cb407a566 in QEventDispatcherGlib::processEvents (this=0x1afa090, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:414
#5  0x00007f1cb404f992 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#6  0x00007f1cb404fd6c in QEventLoop::exec (this=0x7f1c8bffedb0, flags=) at kernel/qeventloop.cpp:201
#7  0x00007f1cb3f59d59 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:487
#8  0x00007f1cb4030178 in QInotifyFileSystemWatcherEngine::run (this=0x1af9590) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007f1cb3f5c775 in QThreadPrivate::start (arg=0x1af9590) at thread/qthread_unix.cpp:248
#10 0x00007f1cb3ccc9ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#11 0x00007f1cb2a7e6fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7f1c92c2f710 (LWP 2020)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f1cb3f5d72b in QWaitConditionPrivate::wait (this=<value optimized out>, mutex=0x196ce70, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x196ce70, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:159
#3  0x00007f1caadd9026 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1973570, th=0x1aa9340) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f1caaddb6ab in ThreadWeaver::WorkingHardState::applyForWork (this=0x196cf50, th=0x1aa9340) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f1caadd9bff in ThreadWeaver::ThreadRunHelper::run (this=0x7f1c92c2ee00, parent=0x1973570, th=0x1aa9340) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f1caadda168 in ThreadWeaver::Thread::run (this=0x1aa9340) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f1cb3f5c775 in QThreadPrivate::start (arg=0x1aa9340) at thread/qthread_unix.cpp:248
#8  0x00007f1cb3ccc9ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#9  0x00007f1cb2a7e6fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7f1c88e03710 (LWP 2021)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f1cb3f5d72b in QWaitConditionPrivate::wait (this=<value optimized out>, mutex=0x196ce70, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x196ce70, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:159
#3  0x00007f1caadd9026 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1973570, th=0x2234e60) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f1caaddb6ab in ThreadWeaver::WorkingHardState::applyForWork (this=0x196cf50, th=0x2234e60) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f1caadd9bff in ThreadWeaver::ThreadRunHelper::run (this=0x7f1c88e02e00, parent=0x1973570, th=0x2234e60) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f1caadda168 in ThreadWeaver::Thread::run (this=0x2234e60) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f1cb3f5c775 in QThreadPrivate::start (arg=0x2234e60) at thread/qthread_unix.cpp:248
#8  0x00007f1cb3ccc9ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#9  0x00007f1cb2a7e6fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f1c88602710 (LWP 2022)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f1cb3f5d72b in QWaitConditionPrivate::wait (this=<value optimized out>, mutex=0x196ce70, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x196ce70, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:159
#3  0x00007f1caadd9026 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1973570, th=0x1938ff0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f1caaddb6ab in ThreadWeaver::WorkingHardState::applyForWork (this=0x196cf50, th=0x1938ff0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f1caadd9bff in ThreadWeaver::ThreadRunHelper::run (this=0x7f1c88601e00, parent=0x1973570, th=0x1938ff0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f1caadda168 in ThreadWeaver::Thread::run (this=0x1938ff0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f1cb3f5c775 in QThreadPrivate::start (arg=0x1938ff0) at thread/qthread_unix.cpp:248
#8  0x00007f1cb3ccc9ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#9  0x00007f1cb2a7e6fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f1c87e01710 (LWP 2023)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f1cb3f5d72b in QWaitConditionPrivate::wait (this=<value optimized out>, mutex=0x196ce70, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x196ce70, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:159
#3  0x00007f1caadd9026 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1973570, th=0x7f1c8c0026d0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f1caaddb6ab in ThreadWeaver::WorkingHardState::applyForWork (this=0x196cf50, th=0x7f1c8c0026d0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f1caadd9bff in ThreadWeaver::ThreadRunHelper::run (this=0x7f1c87e00e00, parent=0x1973570, th=0x7f1c8c0026d0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f1caadda168 in ThreadWeaver::Thread::run (this=0x7f1c8c0026d0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f1cb3f5c775 in QThreadPrivate::start (arg=0x7f1c8c0026d0) at thread/qthread_unix.cpp:248
#8  0x00007f1cb3ccc9ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#9  0x00007f1cb2a7e6fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f1c7f1b4710 (LWP 4378)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f1cab606ca6 in ?? () from /usr/lib/libQtWebKit.so.4
#2  0x00007f1cab606ce9 in ?? () from /usr/lib/libQtWebKit.so.4
#3  0x00007f1cb3ccc9ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#4  0x00007f1cb2a7e6fd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f1cb5a85760 (LWP 1535)):
[KCrash Handler]
#5  0x00007f1cb37c78c4 in QGraphicsItem::pos (this=0x2638e10) at graphicsview/qgraphicsitem.cpp:3419
#6  0x00007f1ca6eb7389 in AppletsListWidget::itemPosition (this=<value optimized out>, i=59) at ../../../libs/plasmagenericshell/widgetsexplorer/appletslist.cpp:691
#7  0x00007f1ca6eb7717 in AppletsListWidget::manageArrows (this=0x2561530) at ../../../libs/plasmagenericshell/widgetsexplorer/appletslist.cpp:636
#8  0x00007f1ca6eb8768 in AppletsListWidget::eventFilter (this=0x2561530, obj=0x2f73410, event=0x7fff7ff38b80) at ../../../libs/plasmagenericshell/widgetsexplorer/appletslist.cpp:172
#9  0x00007f1cb4050487 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<value optimized out>, receiver=0x2f73410, event=0x7fff7ff38b80) at kernel/qcoreapplication.cpp:819
#10 0x00007f1cb31ed1fc in QApplicationPrivate::notify_helper (this=0x127e390, receiver=0x2f73410, e=0x7fff7ff38b80) at kernel/qapplication.cpp:4296
#11 0x00007f1cb31f36fb in QApplication::notify (this=0x1267f00, receiver=0x2f73410, e=0x7fff7ff38b80) at kernel/qapplication.cpp:4183
#12 0x00007f1cb4598526 in KApplication::notify (this=0x1267f00, receiver=0x2f73410, event=0x7fff7ff38b80) at ../../kdeui/kernel/kapplication.cpp:302
#13 0x00007f1cb405106c in QCoreApplication::notifyInternal (this=0x1267f00, receiver=0x2f73410, event=0x7fff7ff38b80) at kernel/qcoreapplication.cpp:704
#14 0x00007f1cb3836271 in QCoreApplication::sendEvent (this=0x2f73410, rect=...) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#15 QGraphicsWidget::setGeometry (this=0x2f73410, rect=...) at graphicsview/qgraphicswidget.cpp:394
#16 0x00007f1cb38332b8 in QGraphicsWidget::resize (this=0x2f73410, size=...) at graphicsview/qgraphicswidget.cpp:309
#17 0x00007f1cb38336c0 in QGraphicsWidget::adjustSize (this=0x2f73410) at graphicsview/qgraphicswidget.cpp:807
#18 0x00007f1ca6eb8e4e in AppletsListWidget::updateList (this=0x2561530) at ../../../libs/plasmagenericshell/widgetsexplorer/appletslist.cpp:461
#19 0x00007f1ca6e9b4bc in AppletsListWidget::qt_metacall (this=0x2561530, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff7ff38f90) at moc_appletslist.cpp:109
#20 0x00007f1cb4063e3f in QMetaObject::activate (sender=0x26b9350, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0xffffffffffafa4a8) at kernel/qobject.cpp:3293
#21 0x00007f1ca6e9a5c2 in KCategorizedItemsViewModels::DefaultItemFilterProxyModel::searchTermChanged (this=0x2638e10, _t1=<value optimized out>) at moc_kcategorizeditemsviewmodels_p.cpp:88
#22 0x00007f1ca6ebac3f in AppletsListWidget::timerEvent (this=0x2561530, event=0x7fff7ff397a0) at ../../../libs/plasmagenericshell/widgetsexplorer/appletslist.cpp:265
#23 0x00007f1cb4060a63 in QObject::event (this=0x2561530, e=0x7fff7ff397a0) at kernel/qobject.cpp:1212
#24 0x00007f1cb3832edb in QGraphicsWidget::event (this=0x2561530, event=0x7fff7ff397a0) at graphicsview/qgraphicswidget.cpp:1361
#25 0x00007f1cb31ed22c in QApplicationPrivate::notify_helper (this=0x127e390, receiver=0x2561530, e=0x7fff7ff397a0) at kernel/qapplication.cpp:4300
#26 0x00007f1cb31f36fb in QApplication::notify (this=0x1267f00, receiver=0x2561530, e=0x7fff7ff397a0) at kernel/qapplication.cpp:4183
#27 0x00007f1cb4598526 in KApplication::notify (this=0x1267f00, receiver=0x2561530, event=0x7fff7ff397a0) at ../../kdeui/kernel/kapplication.cpp:302
#28 0x00007f1cb405106c in QCoreApplication::notifyInternal (this=0x1267f00, receiver=0x2561530, event=0x7fff7ff397a0) at kernel/qcoreapplication.cpp:704
#29 0x00007f1cb407dd42 in QCoreApplication::sendEvent (this=0x1281920) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#30 QTimerInfoList::activateTimers (this=0x1281920) at kernel/qeventdispatcher_unix.cpp:603
#31 0x00007f1cb407a848 in timerSourceDispatch (source=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#32 idleTimerSourceDispatch (source=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:231
#33 0x00007f1caf4328c2 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#34 0x00007f1caf436748 in ?? () from /lib/libglib-2.0.so.0
#35 0x00007f1caf4368fc in g_main_context_iteration () from /lib/libglib-2.0.so.0
#36 0x00007f1cb407a566 in QEventDispatcherGlib::processEvents (this=0x11fc140, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:414
#37 0x00007f1cb329d46e in QGuiEventDispatcherGlib::processEvents (this=0x2638e10, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#38 0x00007f1cb404f992 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#39 0x00007f1cb404fd6c in QEventLoop::exec (this=0x7fff7ff39a40, flags=) at kernel/qeventloop.cpp:201
#40 0x00007f1cb4053aab in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#41 0x00007f1ca7770fb2 in kdemain (argc=<value optimized out>, argv=<value optimized out>) at ../../../../plasma/desktop/shell/main.cpp:112
#42 0x00000000004070f3 in launch (argc=1, _name=<value optimized out>, args=<value optimized out>, cwd=<value optimized out>, envc=0, envs=<value optimized out>, reset_env=false, tty=0x0, 
    avoid_loops=false, startup_id_str=0x40a4f9 "0") at ../../kinit/kinit.cpp:717
#43 0x0000000000407cb0 in handle_launcher_request (sock=8, who=<value optimized out>) at ../../kinit/kinit.cpp:1209
#44 0x000000000040823a in handle_requests (waitForPid=0) at ../../kinit/kinit.cpp:1402
#45 0x0000000000408e22 in main (argc=4, argv=<value optimized out>, envp=<value optimized out>) at ../../kinit/kinit.cpp:1845

This bug may be a duplicate of or related to bug 224593.

Possible duplicates by query: bug 250521, bug 250447, bug 249646, bug 248969, bug 248914.

Reported using DrKonqi