Application: konqueror (4.7.2 (4.7.2))
KDE Platform Version: 4.7.2 (4.7.2)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-12-generic i686
Distribution: Ubuntu 11.10

-- Information about the crash:
Closing a tab with Ctrl-W sometimes causes crashes.

It seems, that this problem is known since 2004:
http://lists.kde.org/?l=kde-devel&m=110425131804283

The crash can be reproduced some of the time.

-- Backtrace:
Application: Konqueror (konqueror), signal: Segmentation fault
[Current thread is 1 (Thread 0xb76db710 (LWP 21889))]

Thread 5 (Thread 0xb4e33b70 (LWP 21893)):
#0  0x00f05416 in __kernel_vsyscall ()
#1  0x02481a5c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x001efcfc in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0xb5e5e883 in ?? () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#4  0xb5e5e99f in ?? () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#5  0x0247dd31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#6  0x001e20ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 4 (Thread 0xb450ab70 (LWP 21894)):
#0  0x00f05416 in __kernel_vsyscall ()
#1  0x001d340e in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0x02bd434b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x02bc5896 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x02bc5c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x0220ab37 in QEventDispatcherGlib::processEvents (this=0x964e878, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x021db1dd in QEventLoop::processEvents (this=0xb450a2e0, flags=...) at kernel/qeventloop.cpp:149
#7  0x021db421 in QEventLoop::exec (this=0xb450a2e0, flags=...) at kernel/qeventloop.cpp:201
#8  0x020de90b in QThread::exec (this=0x963be20) at thread/qthread.cpp:498
#9  0x020de9fb in QThread::run (this=0x963be20) at thread/qthread.cpp:565
#10 0x020e17b3 in QThreadPrivate::start (arg=0x963be20) at thread/qthread_unix.cpp:331
#11 0x0247dd31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0x001e20ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 3 (Thread 0xb3d08b70 (LWP 21895)):
#0  0x00ef2d10 in clock_gettime () from /lib/i386-linux-gnu/librt.so.1
#1  0x021387d5 in do_gettime (frac=0xb3d08020, sec=0xb3d08018) at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0x0220b4b6 in QTimerInfoList::updateCurrentTime (this=0x973cdb4) at kernel/qeventdispatcher_unix.cpp:339
#4  0x0220b80a in QTimerInfoList::timerWait (this=0x973cdb4, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#5  0x0220a053 in timerSourcePrepareHelper (src=<optimized out>, timeout=0xb3d0812c) at kernel/qeventdispatcher_glib.cpp:136
#6  0x0220a0ed in timerSourcePrepare (source=0x973cd80, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#7  0x02bc488c in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0x02bc5637 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#9  0x02bc5c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#10 0x0220ab37 in QEventDispatcherGlib::processEvents (this=0x9727190, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#11 0x021db1dd in QEventLoop::processEvents (this=0xb3d082b0, flags=...) at kernel/qeventloop.cpp:149
#12 0x021db421 in QEventLoop::exec (this=0xb3d082b0, flags=...) at kernel/qeventloop.cpp:201
#13 0x020de90b in QThread::exec (this=0x971a890) at thread/qthread.cpp:498
#14 0x021bbe2d in QInotifyFileSystemWatcherEngine::run (this=0x971a890) at io/qfilesystemwatcher_inotify.cpp:248
#15 0x020e17b3 in QThreadPrivate::start (arg=0x971a890) at thread/qthread_unix.cpp:331
#16 0x0247dd31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#17 0x001e20ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 2 (Thread 0xb1af5b70 (LWP 21901)):
#0  0x00ef2d10 in clock_gettime () from /lib/i386-linux-gnu/librt.so.1
#1  0x021387d5 in do_gettime (frac=0xb1af5020, sec=0xb1af5018) at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0x0220b4b6 in QTimerInfoList::updateCurrentTime (this=0x9871534) at kernel/qeventdispatcher_unix.cpp:339
#4  0x0220b80a in QTimerInfoList::timerWait (this=0x9871534, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#5  0x0220a053 in timerSourcePrepareHelper (src=<optimized out>, timeout=0xb1af512c) at kernel/qeventdispatcher_glib.cpp:136
#6  0x0220a0ed in timerSourcePrepare (source=0x9871500, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#7  0x02bc488c in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0x02bc5637 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#9  0x02bc5c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#10 0x0220ab37 in QEventDispatcherGlib::processEvents (this=0x97cd8b0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#11 0x021db1dd in QEventLoop::processEvents (this=0xb1af52b0, flags=...) at kernel/qeventloop.cpp:149
#12 0x021db421 in QEventLoop::exec (this=0xb1af52b0, flags=...) at kernel/qeventloop.cpp:201
#13 0x020de90b in QThread::exec (this=0x95d33d8) at thread/qthread.cpp:498
#14 0x021bbe2d in QInotifyFileSystemWatcherEngine::run (this=0x95d33d8) at io/qfilesystemwatcher_inotify.cpp:248
#15 0x020e17b3 in QThreadPrivate::start (arg=0x95d33d8) at thread/qthread_unix.cpp:331
#16 0x0247dd31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#17 0x001e20ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 1 (Thread 0xb76db710 (LWP 21889)):
[KCrash Handler]
#7  qobject_cast<QWidget*> (o=0x987ea10) at ../../include/QtGui/../../src/gui/kernel/qwidget.h:910
#8  QWidgetPrivate::hideChildren (this=0x975b828, spontaneous=false) at kernel/qwidget.cpp:7794
#9  0x014ec352 in QWidgetPrivate::hideChildren (this=0x9728710, spontaneous=false) at kernel/qwidget.cpp:7818
#10 0x014ec352 in QWidgetPrivate::hideChildren (this=0x96ff620, spontaneous=false) at kernel/qwidget.cpp:7818
#11 0x014ec552 in QWidgetPrivate::hide_helper (this=0x96ff620) at kernel/qwidget.cpp:7562
#12 0x014f5c50 in QWidget::setVisible (this=0x96fe7a8, visible=false) at kernel/qwidget.cpp:7734
#13 0x014d2e49 in hide (this=0x96fe7a8) at ../../include/QtGui/../../src/gui/kernel/qwidget.h:491
#14 QStackedLayout::setCurrentIndex (this=0x9608890, index=1) at kernel/qstackedlayout.cpp:306
#15 0x0195d60c in QStackedWidget::setCurrentIndex (this=0x9609218, index=1) at widgets/qstackedwidget.cpp:216
#16 0x0196ce01 in QTabWidgetPrivate::_q_showTab (this=0x9609248, index=1) at widgets/qtabwidget.cpp:734
#17 0x0196d0d4 in QTabWidget::qt_metacall (this=0x9192d90, _c=QMetaObject::InvokeMetaMethod, _id=9, _a=0xbff6f278) at .moc/release-shared/moc_qtabwidget.cpp:142
#18 0x011f2612 in KTabWidget::qt_metacall (this=0x9192d90, _c=QMetaObject::InvokeMetaMethod, _id=36, _a=0xbff6f278) at ./ktabwidget.moc:128
#19 0x0093fc52 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_konqueror.so
#20 0x021e2b7d in metacall (argv=0xbff6f278, idx=36, cl=QMetaObject::InvokeMetaMethod, object=0x9192d90) at kernel/qmetaobject.cpp:237
#21 QMetaObject::metacall (object=0x9192d90, cl=QMetaObject::InvokeMetaMethod, idx=36, argv=0xbff6f278) at kernel/qmetaobject.cpp:232
#22 0x021f1a6a in QMetaObject::activate (sender=0x960a0f0, m=0x1de6d6c, local_signal_index=0, argv=0xbff6f278) at kernel/qobject.cpp:3278
#23 0x01960c65 in QTabBar::currentChanged (this=0x960a0f0, _t1=1) at .moc/release-shared/moc_qtabbar.cpp:201
#24 0x01964a69 in QTabBar::setCurrentIndex (this=0x960a0f0, index=1) at widgets/qtabbar.cpp:1231
#25 0x01967b5e in QTabBar::removeTab (this=0x960a0f0, index=2) at widgets/qtabbar.cpp:936
#26 0x0196bbb7 in QTabWidgetPrivate::_q_removeTab (this=0x9609248, index=2) at widgets/qtabwidget.cpp:745
#27 0x0196d04c in QTabWidget::qt_metacall (this=0x9192d90, _c=QMetaObject::InvokeMetaMethod, _id=10, _a=0xbff6f498) at .moc/release-shared/moc_qtabwidget.cpp:143
#28 0x011f2612 in KTabWidget::qt_metacall (this=0x9192d90, _c=QMetaObject::InvokeMetaMethod, _id=37, _a=0xbff6f498) at ./ktabwidget.moc:128
#29 0x0093fc52 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_konqueror.so
#30 0x021e2b7d in metacall (argv=0xbff6f498, idx=37, cl=QMetaObject::InvokeMetaMethod, object=0x9192d90) at kernel/qmetaobject.cpp:237
#31 QMetaObject::metacall (object=0x9192d90, cl=QMetaObject::InvokeMetaMethod, idx=37, argv=0xbff6f498) at kernel/qmetaobject.cpp:232
#32 0x021f1a6a in QMetaObject::activate (sender=0x9609218, m=0x1df483c, local_signal_index=1, argv=0xbff6f498) at kernel/qobject.cpp:3278
#33 0x01bb22d5 in QStackedWidget::widgetRemoved (this=0x9609218, _t1=2) at .moc/release-shared/moc_qstackedwidget.cpp:138
#34 0x01bb242d in QStackedWidget::qt_metacall (this=0x9609218, _c=QMetaObject::InvokeMetaMethod, _id=1, _a=0xbff6f5a8) at .moc/release-shared/moc_qstackedwidget.cpp:89
#35 0x021e2b7d in metacall (argv=0xbff6f5a8, idx=28, cl=QMetaObject::InvokeMetaMethod, object=0x9609218) at kernel/qmetaobject.cpp:237
#36 QMetaObject::metacall (object=0x9609218, cl=QMetaObject::InvokeMetaMethod, idx=28, argv=0xbff6f5a8) at kernel/qmetaobject.cpp:232
#37 0x021f1a6a in QMetaObject::activate (sender=0x9608890, m=0x1df12d8, local_signal_index=0, argv=0xbff6f5a8) at kernel/qobject.cpp:3278
#38 0x01ba7875 in QStackedLayout::widgetRemoved (this=0x9608890, _t1=2) at .moc/release-shared/moc_qstackedlayout.cpp:140
#39 0x014d3030 in QStackedLayout::takeAt (this=0x9608890, index=2) at kernel/qstackedlayout.cpp:272
#40 0x014c7adc in QLayout::removeWidget (this=0x9608890, widget=0x9d54530) at kernel/qlayout.cpp:1457
#41 0x0195d5cc in QStackedWidget::removeWidget (this=0x9609218, widget=0x9d54530) at widgets/qstackedwidget.cpp:199
#42 0x0196a5a9 in QTabWidget::removeTab (this=0x9192d90, index=2) at widgets/qtabwidget.cpp:610
#43 0x011f2aee in KTabWidget::Private::removeTab (this=0x95e3570, index=2) at ../../kdeui/widgets/ktabwidget.cpp:130
#44 0x011f2c0b in removeTab (index=2, this=0x9192d90) at ../../kdeui/widgets/ktabwidget.cpp:603
#45 KTabWidget::removeTab (this=0x9192d90, index=2) at ../../kdeui/widgets/ktabwidget.cpp:598
#46 0x0093c122 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_konqueror.so
#47 0x0092d15f in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_konqueror.so
#48 0x0097024a in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_konqueror.so
#49 0x0097037c in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_konqueror.so
#50 0x0097f5dd in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_konqueror.so
#51 0x021e2b7d in metacall (argv=0x9c31f60, idx=130, cl=QMetaObject::InvokeMetaMethod, object=0x9161010) at kernel/qmetaobject.cpp:237
#52 QMetaObject::metacall (object=0x9161010, cl=QMetaObject::InvokeMetaMethod, idx=130, argv=0x9c31f60) at kernel/qmetaobject.cpp:232
#53 0x021ed685 in QMetaCallEvent::placeMetaCall (this=0x9e8c9f8, object=0x9161010) at kernel/qobject.cpp:535
#54 0x021f4b52 in QObject::event (this=0x9161010, e=0x9e8c9f8) at kernel/qobject.cpp:1217
#55 0x014f0c62 in QWidget::event (this=0x9161010, event=0x9e8c9f8) at kernel/qwidget.cpp:8754
#56 0x019134cc in QMainWindow::event (this=0x9161010, event=0x9e8c9f8) at widgets/qmainwindow.cpp:1478
#57 0x011c9174 in KMainWindow::event (this=0x9161010, ev=0x9e8c9f8) at ../../kdeui/widgets/kmainwindow.cpp:1084
#58 0x01211352 in KXmlGuiWindow::event (this=0x9161010, ev=0x9e8c9f8) at ../../kdeui/xmlgui/kxmlguiwindow.cpp:126
#59 0x0095f37b in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_konqueror.so
#60 0x01496d54 in notify_helper (e=0x9e8c9f8, receiver=0x9161010, this=0x9055f20) at kernel/qapplication.cpp:4486
#61 QApplicationPrivate::notify_helper (this=0x9055f20, receiver=0x9161010, e=0x9e8c9f8) at kernel/qapplication.cpp:4458
#62 0x0149c1a8 in QApplication::notify (this=0x9055f20, receiver=0x9161010, e=0x9e8c9f8) at kernel/qapplication.cpp:4451
#63 0x010ed681 in KApplication::notify (this=0xbff7034c, receiver=0x9161010, event=0x9e8c9f8) at ../../kdeui/kernel/kapplication.cpp:311
#64 0x021dc19e in QCoreApplication::notifyInternal (this=0xbff7034c, receiver=0x9161010, event=0x9e8c9f8) at kernel/qcoreapplication.cpp:787
#65 0x021dff93 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#66 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x9037520) at kernel/qcoreapplication.cpp:1428
#67 0x021e00ec in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1321
#68 0x0220a6a4 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#69 postEventSourceDispatch (s=0x90588d0) at kernel/qeventdispatcher_glib.cpp:277
#70 0x02bc525f in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#71 0x02bc5990 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#72 0x02bc5c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#73 0x0220aada in QEventDispatcherGlib::processEvents (this=0x9038230, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#74 0x0154ee3a in QGuiEventDispatcherGlib::processEvents (this=0x9038230, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#75 0x021db1dd in QEventLoop::processEvents (this=0xbff701d4, flags=...) at kernel/qeventloop.cpp:149
#76 0x021db421 in QEventLoop::exec (this=0xbff701d4, flags=...) at kernel/qeventloop.cpp:201
#77 0x021e019d in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#78 0x014948f4 in QApplication::exec () at kernel/qapplication.cpp:3760
#79 0x009a2bf5 in kdemain () from /usr/lib/kde4/libkdeinit/libkdeinit4_konqueror.so
#80 0x0804850b in ?? ()
#81 0x00129113 in __libc_start_main () from /lib/i386-linux-gnu/libc.so.6
#82 0x08048531 in _start ()

Possible duplicates by query: bug 282172, bug 281651, bug 281536, bug 281188, bug 281055.

Reported using DrKonqi