Application: rekonq (0.8.0)
KDE Platform Version: 4.7.3 (4.7.3)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-14-generic x86_64
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed:

I had just clicked the back button after browsing a page normally.

The crash does not seem to be reproducible.

-- Backtrace:
Application: rekonq (rekonq), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f5f5cfdd780 (LWP 3294))]

Thread 8 (Thread 0x7f5f3493c700 (LWP 3295)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f5f5b8b5c2c in WTF::TCMalloc_PageHeap::scavengerThread (this=0x7f5f5c26c220) at wtf/FastMalloc.cpp:2495
#2  0x00007f5f5b8b5d59 in WTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at wtf/FastMalloc.cpp:1618
#3  0x00007f5f56fe9efc in start_thread (arg=0x7f5f3493c700) at pthread_create.c:304
#4  0x00007f5f5c81489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7f5f3413b700 (LWP 3296)):
#0  0xffffffffff60017b in ?? ()
#1  0x00007f5f3413ab70 in ?? ()
#2  0x00007fff829ff7e7 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 6 (Thread 0x7f5f33501700 (LWP 3297)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f5f5c416fe2 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f5f5c417019 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f5f56fe9efc in start_thread (arg=0x7f5f33501700) at pthread_create.c:304
#4  0x00007f5f5c81489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7f5f322b9700 (LWP 3298)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f5f5758c1ab in wait (time=18446744073709551615, this=0x14f6860) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x14e6b60, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f5f5959c864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x14f58a0, th=0x229c8f0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f5f5959ee0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x14cf350, th=0x229c8f0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f5f5959dccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f5f322b8e20, parent=0x14f58a0, th=0x229c8f0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f5f5959dd5b in ThreadWeaver::Thread::run (this=0x229c8f0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f5f5758bd05 in QThreadPrivate::start (arg=0x229c8f0) at thread/qthread_unix.cpp:331
#8  0x00007f5f56fe9efc in start_thread (arg=0x7f5f322b9700) at pthread_create.c:304
#9  0x00007f5f5c81489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f5f30d4a700 (LWP 3299)):
#0  0xffffffffff60017b in ?? ()
#1  0x00007f5f30d49af0 in ?? ()
#2  0x00007fff829ff7e7 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 3 (Thread 0x7f5ee7906700 (LWP 3310)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f5f5758c1ab in wait (time=18446744073709551615, this=0x14f6860) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x14e6b60, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f5f5959c864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x14f58a0, th=0x2979bd0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f5f5959ee0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x14cf350, th=0x2979bd0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f5f5959ee24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x14cf350, th=0x2979bd0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f5f5959dccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f5ee7905e20, parent=0x14f58a0, th=0x2979bd0) at ../../../threadweaver/Weaver/Thread.cpp:87
#7  0x00007f5f5959dd5b in ThreadWeaver::Thread::run (this=0x2979bd0) at ../../../threadweaver/Weaver/Thread.cpp:142
#8  0x00007f5f5758bd05 in QThreadPrivate::start (arg=0x2979bd0) at thread/qthread_unix.cpp:331
#9  0x00007f5f56fe9efc in start_thread (arg=0x7f5ee7906700) at pthread_create.c:304
#10 0x00007f5f5c81489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f5eea730700 (LWP 3419)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f5f5758c1ab in wait (time=18446744073709551615, this=0x14f6860) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x14e6b60, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f5f5959c864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x14f58a0, th=0x2be8e90) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f5f5959ee0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x14cf350, th=0x2be8e90) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f5f5959dccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f5eea72fe20, parent=0x14f58a0, th=0x2be8e90) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f5f5959dd5b in ThreadWeaver::Thread::run (this=0x2be8e90) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f5f5758bd05 in QThreadPrivate::start (arg=0x2be8e90) at thread/qthread_unix.cpp:331
#8  0x00007f5f56fe9efc in start_thread (arg=0x7f5eea730700) at pthread_create.c:304
#9  0x00007f5f5c81489d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f5f5cfdd780 (LWP 3294)):
[KCrash Handler]
#6  0x00007f5f5b01edb3 in WebCore::InspectorClientQt::sendMessageToFrontend (this=0x1694fe0, message=...) at WebCoreSupport/InspectorClientQt.cpp:282
#7  0x00007f5f5af9347c in WebCore::InspectorFrontend::Network::requestWillBeSent (this=0xafcc1b0, identifier=<optimized out>, frameId=..., loaderId=..., documentURL=..., request=<optimized out>, timestamp=1324827677.7285571, stackTrace=..., redirectResponse=...) at ../../WebCore/generated/InspectorFrontend.cpp:210
#8  0x00007f5f5b3338ae in WebCore::InspectorResourceAgent::willSendRequest (this=0x7f5f493f28b8, identifier=553, loader=0x7f5f46628800, request=..., redirectResponse=...) at inspector/InspectorResourceAgent.cpp:214
#9  0x00007f5f5b39bb43 in willSendRequest (redirectResponse=..., request=..., loader=0x7f5f46628800, identifier=553, frame=<optimized out>) at inspector/InspectorInstrumentation.h:629
#10 WebCore::ResourceLoadNotifier::dispatchWillSendRequest (this=0x7f5f49401608, loader=0x7f5f46628800, identifier=553, request=..., redirectResponse=...) at loader/ResourceLoadNotifier.cpp:119
#11 0x00007f5f5b3740da in WebCore::FrameLoader::requestFromDelegate (this=0x7f5f49401478, request=..., identifier=@0x7fff82956ee8, error=...) at loader/FrameLoader.cpp:3147
#12 0x00007f5f5b3755f8 in WebCore::FrameLoader::commitProvisionalLoad (this=0x7f5f49401478) at loader/FrameLoader.cpp:2038
#13 0x00007f5f5b375f70 in WebCore::FrameLoader::continueLoadAfterNavigationPolicy (this=0x7f5f49401478, formState=..., shouldContinue=true) at loader/FrameLoader.cpp:3098
#14 0x00007f5f5b376050 in WebCore::FrameLoader::callContinueLoadAfterNavigationPolicy (argument=<optimized out>, request=<optimized out>, formState=<optimized out>, shouldContinue=<optimized out>) at loader/FrameLoader.cpp:2978
#15 0x00007f5f5b390de3 in WebCore::PolicyChecker::checkNavigationPolicy (this=0x7f5f49401488, request=..., loader=0x7f5f46628800, formState=..., function=0x7f5f5b376030 <WebCore::FrameLoader::callContinueLoadAfterNavigationPolicy(void*, WebCore::ResourceRequest const&, WTF::PassRefPtr<WebCore::FormState>, bool)>, argument=0x7f5f49401478) at loader/PolicyChecker.cpp:68
#16 0x00007f5f5b3764f8 in WebCore::FrameLoader::loadWithDocumentLoader (this=0x7f5f49401478, loader=0x7f5f46628800, type=<optimized out>, prpFormState=<optimized out>) at loader/FrameLoader.cpp:1586
#17 0x00007f5f5b379cd1 in WebCore::FrameLoader::loadDifferentDocumentItem (this=0x7f5f49401478, item=0x7f5f4832c5a0, loadType=WebCore::FrameLoadTypeIndexedBackForward) at loader/FrameLoader.cpp:3285
#18 0x00007f5f5b37ca7c in WebCore::HistoryController::recursiveGoToItem (this=0x7f5f494015e0, item=0x7f5f4832c5a0, fromItem=0x7f5f48a537e0, type=WebCore::FrameLoadTypeIndexedBackForward) at loader/HistoryController.cpp:700
#19 0x00007f5f5b37da5f in WebCore::HistoryController::goToItem (this=0x7f5f494015e0, targetItem=0x7f5f4832c5a0, type=WebCore::FrameLoadTypeIndexedBackForward) at loader/HistoryController.cpp:265
#20 0x00007f5f5b3ece2d in WebCore::Page::goToItem (this=0x1e49230, item=0x7f5f4832c5a0, type=WebCore::FrameLoadTypeIndexedBackForward) at page/Page.cpp:345
#21 0x00007f5f5cb40c64 in MainWindow::openPrevious (this=0x152a4b0, mouseButtons=..., keyboardModifiers=...) at /build/buildd/rekonq-0.8.0/src/mainwindow.cpp:1085
#22 0x00007f5f5cb47529 in MainWindow::qt_metacall (this=0x152a4b0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff829578f0) at /build/buildd/rekonq-0.8.0/obj-x86_64-linux-gnu/src/mainwindow.moc:179
#23 0x00007f5f57685eba in QMetaObject::activate (sender=0x16cd940, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff829578f0) at kernel/qobject.cpp:3278
#24 0x00007f5f59ff5a27 in KAction::triggered (this=<optimized out>, _t1=<optimized out>, _t2=<optimized out>) at ./kaction.moc:150
#25 0x00007f5f59ff5a9b in KActionPrivate::slotTriggered (this=0x16cdb20) at ../../kdeui/actions/kaction.cpp:72
#26 0x00007f5f59ff6009 in KAction::qt_metacall (this=0x16cd940, _c=QMetaObject::InvokeMetaMethod, _id=3, _a=0x7fff82957ab0) at ./kaction.moc:103
#27 0x00007f5f57685eba in QMetaObject::activate (sender=0x16cd940, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff82957ab0) at kernel/qobject.cpp:3278
#28 0x00007f5f57b9cb62 in QAction::triggered (this=<optimized out>, _t1=false) at .moc/release-shared/moc_qaction.cpp:263
#29 0x00007f5f57b9cd4f in QAction::activate (this=0x16cd940, event=<optimized out>) at kernel/qaction.cpp:1257
#30 0x00007f5f57f5b43a in QAbstractButtonPrivate::click (this=0x1e5f0b0) at widgets/qabstractbutton.cpp:528
#31 0x00007f5f57f5b6ec in QAbstractButton::mouseReleaseEvent (this=0x14dbec0, e=0x7fff829581d0) at widgets/qabstractbutton.cpp:1121
#32 0x00007f5f580182da in QToolButton::mouseReleaseEvent (this=<optimized out>, e=<optimized out>) at widgets/qtoolbutton.cpp:721
#33 0x00007f5f57bf3c9a in QWidget::event (this=0x14dbec0, event=0x7fff829581d0) at kernel/qwidget.cpp:8295
#34 0x00007f5f57ba3424 in notify_helper (e=0x7fff829581d0, receiver=0x14dbec0, this=0x13bcc60) at kernel/qapplication.cpp:4486
#35 QApplicationPrivate::notify_helper (this=0x13bcc60, receiver=0x14dbec0, e=0x7fff829581d0) at kernel/qapplication.cpp:4458
#36 0x00007f5f57ba8c6b in QApplication::notify (this=<optimized out>, receiver=0x14dbec0, e=0x7fff829581d0) at kernel/qapplication.cpp:4047
#37 0x00007f5f5a0db126 in KApplication::notify (this=0x7fff82958e30, receiver=0x14dbec0, event=0x7fff829581d0) at ../../kdeui/kernel/kapplication.cpp:311
#38 0x00007f5f57672afc in QCoreApplication::notifyInternal (this=0x7fff82958e30, receiver=0x14dbec0, event=0x7fff829581d0) at kernel/qcoreapplication.cpp:787
#39 0x00007f5f57ba43f2 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#40 QApplicationPrivate::sendMouseEvent (receiver=0x14dbec0, event=0x7fff829581d0, alienWidget=0x14dbec0, nativeWidget=0x1e73920, buttonDown=0x14dbec0, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3146
#41 0x00007f5f57c23945 in QETWidget::translateMouseEvent (this=0x1e73920, event=<optimized out>) at kernel/qapplication_x11.cpp:4568
#42 0x00007f5f57c228be in QApplication::x11ProcessEvent (this=0x7fff82958e30, event=0x7fff829589f0) at kernel/qapplication_x11.cpp:3690
#43 0x00007f5f57c4b412 in x11EventSourceDispatch (s=0x13c0250, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#44 0x00007f5f5541ca5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#45 0x00007f5f5541d258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#46 0x00007f5f5541d429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#47 0x00007f5f5769ded6 in QEventDispatcherGlib::processEvents (this=0x1390f40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#48 0x00007f5f57c4b07e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#49 0x00007f5f57671cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#50 0x00007f5f57671ef7 in QEventLoop::exec (this=0x7fff82958dc0, flags=...) at kernel/qeventloop.cpp:201
#51 0x00007f5f57676789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#52 0x00007f5f5cbc6b97 in kdemain (argc=1, argv=<optimized out>) at /build/buildd/rekonq-0.8.0/src/main.cpp:215
#53 0x00007f5f5c75430d in __libc_start_main (main=0x400630 <main(int, char**)>, argc=1, ubp_av=0x7fff829597c8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff829597b8) at libc-start.c:226
#54 0x0000000000400661 in _start ()

Possible duplicates by query: bug 289535, bug 287959, bug 287362, bug 286939, bug 286451.

Reported using DrKonqi