Bug 220896

Application: plasma-desktop (0.3)
KDE Platform Version: 4.3.85 (KDE 4.3.85 (KDE 4.4 Beta2))
Qt Version: 4.6.0
Operating System: Linux 2.6.31-17-generic i686
Distribution: Ubuntu 9.10

-- Information about the crash:
The web-browser widget in the plasma panel was pointed at http://en.m.wikipedia.org/ and had drag-to-scroll enabled. It was initially added via click-and-drag of a website into the panel. After right-clicking and removing it via the context menu, the following crash occured.

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0xb7769760 (LWP 1164))]

Thread 7 (Thread 0xaa577b70 (LWP 1246)):
#0  0x00c00422 in __kernel_vsyscall ()
#1  0x006e9e15 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0x0101c307 in QWaitConditionPrivate::wait (this=0x9c12a80, mutex=0x9c12a7c, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#3  QWaitCondition::wait (this=0x9c12a80, mutex=0x9c12a7c, time=4294967295) at thread/qwaitcondition_unix.cpp:159
#4  0x00af0102 in QHostInfoAgent::run (this=0x9c12a70) at kernel/qhostinfo.cpp:252
#5  0x0101b3ae in QThreadPrivate::start (arg=0x9c12a70) at thread/qthread_unix.cpp:244
#6  0x006e580e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0x007f77ee in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 6 (Thread 0xa8851b70 (LWP 1529)):
#0  0x00c00422 in __kernel_vsyscall ()
#1  0x006e9e15 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0x0101c307 in QWaitConditionPrivate::wait (this=0x9bd4fb0, mutex=0x9ba0050, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#3  QWaitCondition::wait (this=0x9bd4fb0, mutex=0x9ba0050, time=4294967295) at thread/qwaitcondition_unix.cpp:159
#4  0x075188a0 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x9bd4f98, th=0xaa47dd8) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#5  0x0751b41c in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0x9bd4400, th=0xaa47dd8) at ../../../threadweaver/Weaver/WorkingHardState.cpp:80
#6  0x0751726b in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0x9bd4f98, th=0xaa47dd8) at ../../../threadweaver/Weaver/WeaverImpl.cpp:356
#7  0x0751b512 in ThreadWeaver::WorkingHardState::applyForWork (this=0x9bd4400, th=0xaa47dd8) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#8  0x07518b23 in ThreadWeaver::WeaverImpl::applyForWork (this=0x9bd4f98, th=0xaa47dd8, previous=0xb6ae5b0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#9  0x075194fe in ThreadWeaver::ThreadRunHelper::run (this=0xa88512a4, parent=0x9bd4f98, th=0xaa47dd8) at ../../../threadweaver/Weaver/Thread.cpp:87
#10 0x07519b1b in ThreadWeaver::Thread::run (this=0xaa47dd8) at ../../../threadweaver/Weaver/Thread.cpp:142
#11 0x0101b3ae in QThreadPrivate::start (arg=0xaa47dd8) at thread/qthread_unix.cpp:244
#12 0x006e580e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#13 0x007f77ee in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 5 (Thread 0xa8050b70 (LWP 1530)):
#0  0x00c00422 in __kernel_vsyscall ()
#1  0x006e9e15 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0x0101c307 in QWaitConditionPrivate::wait (this=0x9bd4fb0, mutex=0x9ba0050, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#3  QWaitCondition::wait (this=0x9bd4fb0, mutex=0x9ba0050, time=4294967295) at thread/qwaitcondition_unix.cpp:159
#4  0x075188a0 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x9bd4f98, th=0xa1f1e18) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#5  0x0751b41c in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0x9bd4400, th=0xa1f1e18) at ../../../threadweaver/Weaver/WorkingHardState.cpp:80
#6  0x0751726b in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0x9bd4f98, th=0xa1f1e18) at ../../../threadweaver/Weaver/WeaverImpl.cpp:356
#7  0x0751b512 in ThreadWeaver::WorkingHardState::applyForWork (this=0x9bd4400, th=0xa1f1e18) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#8  0x07518b23 in ThreadWeaver::WeaverImpl::applyForWork (this=0x9bd4f98, th=0xa1f1e18, previous=0x0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#9  0x0751b531 in ThreadWeaver::WorkingHardState::applyForWork (this=0x9bd4400, th=0xa1f1e18) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#10 0x07518b23 in ThreadWeaver::WeaverImpl::applyForWork (this=0x9bd4f98, th=0xa1f1e18, previous=0x0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#11 0x0751b531 in ThreadWeaver::WorkingHardState::applyForWork (this=0x9bd4400, th=0xa1f1e18) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#12 0x07518b23 in ThreadWeaver::WeaverImpl::applyForWork (this=0x9bd4f98, th=0xa1f1e18, previous=0xa23c980) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#13 0x075194fe in ThreadWeaver::ThreadRunHelper::run (this=0xa80502a4, parent=0x9bd4f98, th=0xa1f1e18) at ../../../threadweaver/Weaver/Thread.cpp:87
#14 0x07519b1b in ThreadWeaver::Thread::run (this=0xa1f1e18) at ../../../threadweaver/Weaver/Thread.cpp:142
#15 0x0101b3ae in QThreadPrivate::start (arg=0xa1f1e18) at thread/qthread_unix.cpp:244
#16 0x006e580e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#17 0x007f77ee in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 4 (Thread 0xa784fb70 (LWP 1531)):
#0  0x00c00422 in __kernel_vsyscall ()
#1  0x006e9e15 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0x0101c307 in QWaitConditionPrivate::wait (this=0x9bd4fb0, mutex=0x9ba0050, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#3  QWaitCondition::wait (this=0x9bd4fb0, mutex=0x9ba0050, time=4294967295) at thread/qwaitcondition_unix.cpp:159
#4  0x075188a0 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x9bd4f98, th=0x9f74ec0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#5  0x0751b41c in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0x9bd4400, th=0x9f74ec0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:80
#6  0x0751726b in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0x9bd4f98, th=0x9f74ec0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:356
#7  0x0751b512 in ThreadWeaver::WorkingHardState::applyForWork (this=0x9bd4400, th=0x9f74ec0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#8  0x07518b23 in ThreadWeaver::WeaverImpl::applyForWork (this=0x9bd4f98, th=0x9f74ec0, previous=0x0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#9  0x0751b531 in ThreadWeaver::WorkingHardState::applyForWork (this=0x9bd4400, th=0x9f74ec0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#10 0x07518b23 in ThreadWeaver::WeaverImpl::applyForWork (this=0x9bd4f98, th=0x9f74ec0, previous=0xba3a548) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#11 0x075194fe in ThreadWeaver::ThreadRunHelper::run (this=0xa784f2a4, parent=0x9bd4f98, th=0x9f74ec0) at ../../../threadweaver/Weaver/Thread.cpp:87
#12 0x07519b1b in ThreadWeaver::Thread::run (this=0x9f74ec0) at ../../../threadweaver/Weaver/Thread.cpp:142
#13 0x0101b3ae in QThreadPrivate::start (arg=0x9f74ec0) at thread/qthread_unix.cpp:244
#14 0x006e580e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#15 0x007f77ee in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 3 (Thread 0xa704eb70 (LWP 1532)):
#0  0x00c00422 in __kernel_vsyscall ()
#1  0x006e9e15 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0x0101c307 in QWaitConditionPrivate::wait (this=0x9bd4fb0, mutex=0x9ba0050, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#3  QWaitCondition::wait (this=0x9bd4fb0, mutex=0x9ba0050, time=4294967295) at thread/qwaitcondition_unix.cpp:159
#4  0x075188a0 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x9bd4f98, th=0xa1c14a8) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#5  0x0751b41c in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0x9bd4400, th=0xa1c14a8) at ../../../threadweaver/Weaver/WorkingHardState.cpp:80
#6  0x0751726b in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0x9bd4f98, th=0xa1c14a8) at ../../../threadweaver/Weaver/WeaverImpl.cpp:356
#7  0x0751b512 in ThreadWeaver::WorkingHardState::applyForWork (this=0x9bd4400, th=0xa1c14a8) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#8  0x07518b23 in ThreadWeaver::WeaverImpl::applyForWork (this=0x9bd4f98, th=0xa1c14a8, previous=0xb750e68) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#9  0x075194fe in ThreadWeaver::ThreadRunHelper::run (this=0xa704e2a4, parent=0x9bd4f98, th=0xa1c14a8) at ../../../threadweaver/Weaver/Thread.cpp:87
#10 0x07519b1b in ThreadWeaver::Thread::run (this=0xa1c14a8) at ../../../threadweaver/Weaver/Thread.cpp:142
#11 0x0101b3ae in QThreadPrivate::start (arg=0xa1c14a8) at thread/qthread_unix.cpp:244
#12 0x006e580e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#13 0x007f77ee in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 2 (Thread 0xa21edb70 (LWP 15683)):
#0  0x00c00422 in __kernel_vsyscall ()
#1  0x006e9e15 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb68490d7 in ?? () from /usr/lib/libQtWebKit.so.4
#3  0xb6849121 in ?? () from /usr/lib/libQtWebKit.so.4
#4  0x006e580e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#5  0x007f77ee in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb7769760 (LWP 1164)):
[KCrash Handler]
#6  QGraphicsScenePrivate::processDirtyItemsRecursive (this=0x9858d08, item=0xa9a9330, dirtyAncestorContainsChildren=false, parentOpacity=1) at graphicsview/qgraphicsscene.cpp:4895
#7  0x07d80eed in QGraphicsScenePrivate::_q_processDirtyItems (this=0x9858d08) at graphicsview/qgraphicsscene.cpp:466
#8  0x07d814f6 in QGraphicsScene::qt_metacall (this=0x9858c68, _c=QMetaObject::InvokeMetaMethod, _id=14, _a=0xbaca510) at .moc/release-shared/moc_qgraphicsscene.cpp:130
#9  0x01438a2a in Plasma::Corona::qt_metacall (this=0x9858c68, _c=QMetaObject::InvokeMetaMethod, _id=18, _a=0xbaca510) at ./corona.moc:107
#10 0x018731da in DesktopCorona::qt_metacall (this=0x9858c68, _c=QMetaObject::InvokeMetaMethod, _id=18, _a=0xbaca510) at ./desktopcorona.moc:78
#11 0x0112211a in QMetaObject::metacall (object=0x9858c68, cl=QMetaObject::InvokeMetaMethod, idx=18, argv=0xbaca510) at kernel/qmetaobject.cpp:237
#12 0x0112c856 in QMetaCallEvent::placeMetaCall (this=0xb048980, object=0x9858c68) at kernel/qobject.cpp:574
#13 0x0112d8ae in QObject::event (this=0x9858c68, e=0xb048980) at kernel/qobject.cpp:1260
#14 0x07d7d1c4 in QGraphicsScene::event (this=0x9858c68, event=0xb048980) at graphicsview/qgraphicsscene.cpp:3450
#15 0x076d819c in QApplicationPrivate::notify_helper (this=0x97d0d38, receiver=0x9858c68, e=0xb048980) at kernel/qapplication.cpp:4242
#16 0x076dedf7 in QApplication::notify (this=0x97ca9c0, receiver=0x9858c68, e=0xb048980) at kernel/qapplication.cpp:3661
#17 0x00dde0fa in KApplication::notify (this=0x97ca9c0, receiver=0x9858c68, event=0xb048980) at ../../kdeui/kernel/kapplication.cpp:302
#18 0x0111ceab in QCoreApplication::notifyInternal (this=0x97ca9c0, receiver=0x9858c68, event=0xb048980) at kernel/qcoreapplication.cpp:704
#19 0x0111f8e3 in QCoreApplication::sendEvent (receiver=0x0, event_type=0, data=0x9765eb8) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#20 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x9765eb8) at kernel/qcoreapplication.cpp:1345
#21 0x0111fa4d in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1238
#22 0x011490df in QCoreApplication::sendPostedEvents (s=0x97d2ed0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#23 postEventSourceDispatch (s=0x97d2ed0) at kernel/qeventdispatcher_glib.cpp:276
#24 0x08c24e88 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#25 0x08c28730 in ?? () from /lib/libglib-2.0.so.0
#26 0x08c28863 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#27 0x01148bd5 in QEventDispatcherGlib::processEvents (this=0x97d0010, flags=...) at kernel/qeventdispatcher_glib.cpp:407
#28 0x07795b75 in QGuiEventDispatcherGlib::processEvents (this=0x97d0010, flags=...) at kernel/qguieventdispatcher_glib.cpp:202
#29 0x0111b4c9 in QEventLoop::processEvents (this=0xbfc65114, flags=) at kernel/qeventloop.cpp:149
#30 0x0111b91a in QEventLoop::exec (this=0xbfc65114, flags=...) at kernel/qeventloop.cpp:201
#31 0x0111fb0f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#32 0x076d8237 in QApplication::exec () at kernel/qapplication.cpp:3570
#33 0x0187b06e in kdemain (argc=1, argv=0x97b64b0) at ../../../../plasma/desktop/shell/main.cpp:112
#34 0x0804dff7 in launch (argc=<value optimized out>, _name=<value optimized out>, args=<value optimized out>, cwd=0x0, envc=0, envs=0x97c1530 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x8051429 "0") at ../../kinit/kinit.cpp:705
#35 0x0804ec15 in handle_launcher_request (sock=<value optimized out>, who=<value optimized out>) at ../../kinit/kinit.cpp:1197
#36 0x0804f08c in handle_requests (waitForPid=<value optimized out>) at ../../kinit/kinit.cpp:1390
#37 0x0804fe27 in main (argc=4, argv=0xbfc65bc4, envp=0xbfc65bd8) at ../../kinit/kinit.cpp:1825

Possible duplicates by query: bug 220689, bug 220554, bug 220551, bug 220527, bug 220279.

Reported using DrKonqi