Application: rekonq (0.3.90)
KDE Platform Version: 4.4.00 (KDE 4.4.0)
Qt Version: 4.6.1
Operating System: Linux 2.6.32-13-generic x86_64
Distribution: Ubuntu lucid (development branch)

-- Information about the crash:
Cannot reliably reproduce but has occured often enough to make me not use rekonq regularly. I used the Ctrl-W shortcut to close one tab when the crash occured.
I had 3 tabs open and I have the adobe flash plugin installed but I had not clicked on any "Load plugin" buttons.

The crash can be reproduced some of the time.

 -- Backtrace:
Application: rekonq (kdeinit4), signal: Segmentation fault
The current source language is "auto; currently asm".
[Current thread is 1 (Thread 0x7faadddbd800 (LWP 14385))]

Thread 7 (Thread 0x7faac9c0b710 (LWP 14386)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007faad26b1916 in WTF::TCMalloc_PageHeap::scavengerThread (this=0x7faad3673ec0) at ../JavaScriptCore/wtf/FastMalloc.cpp:2299
#2  0x00007faad26b1959 in WTF::TCMalloc_PageHeap::runScavengerThread (context=0x7faad3681f8c) at ../JavaScriptCore/wtf/FastMalloc.cpp:1433
#3  0x00007faadc00db14 in start_thread (arg=<value optimized out>) at pthread_create.c:300
#4  0x00007faadadc807d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7faac8825710 (LWP 14387)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007faadc29e70b in QWaitConditionPrivate::wait (this=<value optimized out>, mutex=0x1e58470, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x1e58470, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:159
#3  0x00007faad1e83096 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1e61700, th=0x20bfa70) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007faad1e856ab in ThreadWeaver::WorkingHardState::applyForWork (this=0x1e67180, th=0x20bfa70) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007faad1e83bff in ThreadWeaver::ThreadRunHelper::run (this=0x7faac8824d90, parent=0x1e61700, th=0x20bfa70) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007faad1e84168 in ThreadWeaver::Thread::run (this=0x20bfa70) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007faadc29d755 in QThreadPrivate::start (arg=0x20bfa70) at thread/qthread_unix.cpp:248
#8  0x00007faadc00db14 in start_thread (arg=<value optimized out>) at pthread_create.c:300
#9  0x00007faadadc807d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7faac7416710 (LWP 14388)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007faadc29e70b in QWaitConditionPrivate::wait (this=<value optimized out>, mutex=0x24e6b10, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x24e6b10, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:159
#3  0x00007faad2bad808 in WebCore::IconDatabase::syncThreadMainLoop (this=0x7faac9367d80) at loader/icon/IconDatabase.cpp:1412
#4  0x00007faad2bb2198 in WebCore::IconDatabase::iconDatabaseSyncThread (this=0x7faac9367d80) at loader/icon/IconDatabase.cpp:1038
#5  0x00007faad26b6e9b in WTF::ThreadPrivate::run (this=0x25bbc10) at ../JavaScriptCore/wtf/qt/ThreadingQt.cpp:64
#6  0x00007faadc29d755 in QThreadPrivate::start (arg=0x25bbc10) at thread/qthread_unix.cpp:248
#7  0x00007faadc00db14 in start_thread (arg=<value optimized out>) at pthread_create.c:300
#8  0x00007faadadc807d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#9  0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7faac6c15710 (LWP 14399)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007faadc29e70b in QWaitConditionPrivate::wait (this=<value optimized out>, mutex=0x1e58470, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x1e58470, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:159
#3  0x00007faad1e83096 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1e61700, th=0x25ecaa0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007faad1e856ab in ThreadWeaver::WorkingHardState::applyForWork (this=0x1e67180, th=0x25ecaa0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007faad1e856c4 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1e67180, th=0x25ecaa0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007faad1e83bff in ThreadWeaver::ThreadRunHelper::run (this=0x7faac6c14d90, parent=0x1e61700, th=0x25ecaa0) at ../../../threadweaver/Weaver/Thread.cpp:87
#7  0x00007faad1e84168 in ThreadWeaver::Thread::run (this=0x25ecaa0) at ../../../threadweaver/Weaver/Thread.cpp:142
#8  0x00007faadc29d755 in QThreadPrivate::start (arg=0x25ecaa0) at thread/qthread_unix.cpp:248
#9  0x00007faadc00db14 in start_thread (arg=<value optimized out>) at pthread_create.c:300
#10 0x00007faadadc807d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7faabffff710 (LWP 14549)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007faadc29e70b in QWaitConditionPrivate::wait (this=<value optimized out>, mutex=0x1e58470, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x1e58470, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:159
#3  0x00007faad1e83096 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1e61700, th=0x2604a40) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007faad1e856ab in ThreadWeaver::WorkingHardState::applyForWork (this=0x1e67180, th=0x2604a40) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007faad1e856c4 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1e67180, th=0x2604a40) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007faad1e856c4 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1e67180, th=0x2604a40) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#7  0x00007faad1e83bff in ThreadWeaver::ThreadRunHelper::run (this=0x7faabfffed90, parent=0x1e61700, th=0x2604a40) at ../../../threadweaver/Weaver/Thread.cpp:87
#8  0x00007faad1e84168 in ThreadWeaver::Thread::run (this=0x2604a40) at ../../../threadweaver/Weaver/Thread.cpp:142
#9  0x00007faadc29d755 in QThreadPrivate::start (arg=0x2604a40) at thread/qthread_unix.cpp:248
#10 0x00007faadc00db14 in start_thread (arg=<value optimized out>) at pthread_create.c:300
#11 0x00007faadadc807d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7faac5e3f710 (LWP 14554)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007faadc29e70b in QWaitConditionPrivate::wait (this=<value optimized out>, mutex=0x1e58470, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x1e58470, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:159
#3  0x00007faad1e83096 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1e61700, th=0x2872de0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007faad1e856ab in ThreadWeaver::WorkingHardState::applyForWork (this=0x1e67180, th=0x2872de0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007faad1e856c4 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1e67180, th=0x2872de0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007faad1e856c4 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1e67180, th=0x2872de0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#7  0x00007faad1e856c4 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1e67180, th=0x2872de0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#8  0x00007faad1e83bff in ThreadWeaver::ThreadRunHelper::run (this=0x7faac5e3ed90, parent=0x1e61700, th=0x2872de0) at ../../../threadweaver/Weaver/Thread.cpp:87
#9  0x00007faad1e84168 in ThreadWeaver::Thread::run (this=0x2872de0) at ../../../threadweaver/Weaver/Thread.cpp:142
#10 0x00007faadc29d755 in QThreadPrivate::start (arg=0x2872de0) at thread/qthread_unix.cpp:248
#11 0x00007faadc00db14 in start_thread (arg=<value optimized out>) at pthread_create.c:300
#12 0x00007faadadc807d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7faadddbd800 (LWP 14385)):
[KCrash Handler]
#5  WebTab::page (this=0x0) at /build/buildd/rekonq-0.3.90/src/webtab.cpp:114
#6  0x00007faacff88618 in MainWindow::notifyMessage (this=0x1e6fc50, msg=..., status=<value optimized out>) at /build/buildd/rekonq-0.3.90/src/mainwindow.cpp:1059
#7  0x00007faacff8e558 in MainWindow::qt_metacall (this=0x1e6fc50, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff6ab241a0)
    at /build/buildd/rekonq-0.3.90/obj-x86_64-linux-gnu/src/mainwindow.moc:128
#8  0x00007faadc3a4a5f in QMetaObject::activate (sender=0x1e22a30, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x34eb20) at kernel/qobject.cpp:3275
#9  0x00007faacff85a75 in MainView::linkHovered (this=0x0, _t1=<value optimized out>) at /build/buildd/rekonq-0.3.90/obj-x86_64-linux-gnu/src/mainview.moc:190
#10 0x00007faacff87d1d in MainView::qt_metacall (this=0x1e22a30, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff6ab242d0)
    at /build/buildd/rekonq-0.3.90/obj-x86_64-linux-gnu/src/mainview.moc:127
#11 0x00007faadc3a4a5f in QMetaObject::activate (sender=0x287f710, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x34eb20) at kernel/qobject.cpp:3275
#12 0x00007faad2b58faf in QWebPage::linkHovered (this=0x0, _t1=<value optimized out>, _t2=<value optimized out>, _t3=<value optimized out>) at .moc/release-shared/moc_qwebpage.cpp:362
#13 0x00007faad2b41186 in WebCore::ChromeClientQt::mouseDidMoveOverElement (this=0x298e450, result=<value optimized out>) at ../WebKit/qt/WebCoreSupport/ChromeClientQt.cpp:371
#14 0x00007faad29a4506 in WebCore::Chrome::mouseDidMoveOverElement (this=0x7faaaf7980d8, result=..., modifierFlags=42465040) at page/Chrome.cpp:317
#15 0x00007faad29bd266 in WebCore::EventHandler::mouseMoved (this=<value optimized out>, event=...) at page/EventHandler.cpp:1320
#16 0x00007faad2b5ad2f in QWebPagePrivate::mouseMoveEvent (this=<value optimized out>, ev=0x7fff6ab24590) at ../WebKit/qt/Api/qwebpage.cpp:703
#17 0x00007faad2b5adac in QWebPagePrivate::leaveEvent (this=0x2a6d9c0) at ../WebKit/qt/Api/qwebpage.cpp:1180
#18 0x00007faad2b60631 in QWebPage::event (this=0x287f710, ev=0x7fff6ab24c80) at ../WebKit/qt/Api/qwebpage.cpp:2574
#19 0x00007faad2b64691 in QWebView::event (this=0x28c1fc0, e=0x7fff6ab24c80) at ../WebKit/qt/Api/qwebview.cpp:654
#20 0x00007faadb53007c in QApplicationPrivate::notify_helper (this=0x1d509b0, receiver=0x28c1fc0, e=0x7fff6ab24c80) at kernel/qapplication.cpp:4298
#21 0x00007faadb53666b in QApplication::notify (this=0x7fff6ab26a10, receiver=0x28c1fc0, e=0x7fff6ab24c80) at kernel/qapplication.cpp:4181
#22 0x00007faadc8d8db6 in KApplication::notify (this=0x7fff6ab26a10, receiver=0x28c1fc0, event=0x7fff6ab24c80) at ../../kdeui/kernel/kapplication.cpp:302
#23 0x00007faadc391c5c in QCoreApplication::notifyInternal (this=0x7fff6ab26a10, receiver=0x28c1fc0, event=0x7fff6ab24c80) at kernel/qcoreapplication.cpp:704
#24 0x00007faadb5355fe in QCoreApplication::sendEvent (enter=<value optimized out>, leave=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#25 QApplicationPrivate::dispatchEnterLeave (enter=<value optimized out>, leave=<value optimized out>) at kernel/qapplication.cpp:2613
#26 0x00007faadb535fde in QApplicationPrivate::sendMouseEvent (receiver=0x2876e00, event=0x7fff6ab24e40, alienWidget=0x2876e00, nativeWidget=0x1e6fc50, buttonDown=<value optimized out>, 
    lastMouseReceiver=<value optimized out>, spontaneous=true) at kernel/qapplication.cpp:2943
#27 0x00007faadb5364cf in QApplicationPrivate::sendSyntheticEnterLeave (this=<value optimized out>, widget=<value optimized out>) at kernel/qapplication.cpp:3049
#28 0x00007faadb58d57a in QWidget::setVisible (this=0x2850970, visible=<value optimized out>) at kernel/qwidget.cpp:7401
#29 0x00007faadb56fd2d in QWidget::show (this=0x1e246f0, index=2) at ../../include/QtGui/../../src/gui/kernel/qwidget.h:485
#30 QStackedLayout::setCurrentIndex (this=0x1e246f0, index=2) at kernel/qstackedlayout.cpp:311
#31 0x00007faadb5700c3 in QStackedLayout::takeAt (this=0x1e246f0, index=3) at kernel/qstackedlayout.cpp:265
#32 0x00007faadb560abf in QLayout::removeWidget (this=0x1e246f0, widget=0x2942df0) at kernel/qlayout.cpp:1457
#33 0x00007faadc9d52ad in KTabWidget::Private::removeTab (this=0x1e712d0, index=3) at ../../kdeui/widgets/ktabwidget.cpp:130
#34 0x00007faacff8763b in MainView::closeTab (this=0x1e22a30, index=3) at /build/buildd/rekonq-0.3.90/src/mainview.cpp:514
#35 0x00007faadb5860be in QWidget::event (this=0x1e6fc50, event=0x7fff6ab25a60) at kernel/qwidget.cpp:8013
#36 0x00007faadb94782b in QMainWindow::event (this=0x1e6fc50, event=0x7fff6ab25a60) at widgets/qmainwindow.cpp:1435
#37 0x00007faadb53007c in QApplicationPrivate::notify_helper (this=0x1d509b0, receiver=0x1e6fc50, e=0x7fff6ab25a60) at kernel/qapplication.cpp:4298
#38 0x00007faadb537e25 in QApplication::notify (this=<value optimized out>, receiver=0x1e6fc50, e=0x7fff6ab25a60) at kernel/qapplication.cpp:3761
#39 0x00007faadc8d8db6 in KApplication::notify (this=0x7fff6ab26a10, receiver=0x28c1fc0, event=0x7fff6ab25a60) at ../../kdeui/kernel/kapplication.cpp:302
#40 0x00007faadc391c5c in QCoreApplication::notifyInternal (this=0x7fff6ab26a10, receiver=0x28c1fc0, event=0x7fff6ab25a60) at kernel/qcoreapplication.cpp:704
#41 0x00007faadb5da59a in QKeyMapper::sendKeyEvent (keyWidget=0x28c1fc0, grab=<value optimized out>, type=QEvent::KeyPress, code=87, modifiers=<value optimized out>, text=..., autorepeat=false, 
    count=1, nativeScanCode=25, nativeVirtualKey=119, nativeModifiers=4) at kernel/qkeymapper_x11.cpp:1861
#42 0x00007faadb5dcb10 in QKeyMapperPrivate::translateKeyEvent (this=0x7fff6ab25c40, keyWidget=0x28c1fc0, event=<value optimized out>, grab=false) at kernel/qkeymapper_x11.cpp:1831
#43 0x00007faadb5b3fe4 in QApplication::x11ProcessEvent (this=<value optimized out>, event=0x7fff6ab26630) at kernel/qapplication_x11.cpp:3394
#44 0x00007faadb5dfca2 in x11EventSourceDispatch (s=0x1d54450, callback=<value optimized out>, user_data=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:146
#45 0x00007faad757bef0 in g_main_dispatch (context=0x1d52a20) at /build/buildd/glib2.0-2.23.3/glib/gmain.c:1960
#46 IA__g_main_context_dispatch (context=0x1d52a20) at /build/buildd/glib2.0-2.23.3/glib/gmain.c:2513
#47 0x00007faad757fd28 in g_main_context_iterate (context=0x1d52a20, block=<value optimized out>, dispatch=<value optimized out>, self=<value optimized out>)
    at /build/buildd/glib2.0-2.23.3/glib/gmain.c:2591
#48 0x00007faad757ff0c in IA__g_main_context_iteration (context=0x1d52a20, may_block=1) at /build/buildd/glib2.0-2.23.3/glib/gmain.c:2654
#49 0x00007faadc3bb143 in QEventDispatcherGlib::processEvents (this=0x1d50370, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:412
#50 0x00007faadb5df88e in QGuiEventDispatcherGlib::processEvents (this=0x0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#51 0x00007faadc390582 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#52 0x00007faadc39095c in QEventLoop::exec (this=0x7fff6ab26960, flags=) at kernel/qeventloop.cpp:201
#53 0x00007faadc39469b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#54 0x00007faacffc5b82 in kdemain (argc=<value optimized out>, argv=<value optimized out>) at /build/buildd/rekonq-0.3.90/src/main.cpp:157
#55 0x0000000000406fb8 in launch (argc=1, _name=<value optimized out>, args=<value optimized out>, cwd=<value optimized out>, envc=1, envs=<value optimized out>, reset_env=false, tty=0x0, 
    avoid_loops=false, startup_id_str=0x1d06d45 "sovereign;1266395298;678079;4200_TIME3457482") at ../../kinit/kinit.cpp:717
#56 0x0000000000407c70 in handle_launcher_request (sock=8, who=<value optimized out>) at ../../kinit/kinit.cpp:1209
#57 0x00000000004081ff in handle_requests (waitForPid=0) at ../../kinit/kinit.cpp:1402
#58 0x0000000000408e12 in main (argc=4, argv=<value optimized out>, envp=<value optimized out>) at ../../kinit/kinit.cpp:1841

Reported using DrKonqi