Application: rekonq (0.7.0)
KDE Platform Version: 4.6.2 (4.6.2)
Qt Version: 4.7.2
Operating System: Linux 2.6.38-8-generic i686
Distribution: Ubuntu 11.04

-- Information about the crash:
- What I was doing when the application crashed:
I was browsing this web page: http://www.seriesyonkis.com/serie/apartamento-para-tres/
I had some megavideo strams opened in other tabs, but they was already closed when the crash happened.
The crash might be happened when I just clicked on the "back" button (button to go to the back page in the rekonq commands bar).

- Unusual behavior I noticed:
That web page is not well rendered by Rekonq (or Webkit), I used to see stranger things on  the page when I scrolled down or up, including small objetcs "floating" moving across the page from botton to top. Stranger, really?

This is the second time I obtain a crash like this, there also a report of this bug in Launchpad: https://bugs.launchpad.net/ubuntu/+source/rekonq/+bug/774200

The crash can be reproduced some of the time.

-- Backtrace:
Application: rekonq (rekonq), signal: Segmentation fault
[Current thread is 1 (Thread 0xb76fd710 (LWP 3489))]

Thread 10 (Thread 0xb53e1b70 (LWP 3490)):
#0  0x00189416 in __kernel_vsyscall ()
#1  0x003be48c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x002683fd in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x01535b57 in scavengerThread (context=0x1ae6700) at wtf/FastMalloc.cpp:2378
#4  WTF::TCMalloc_PageHeap::runScavengerThread (context=0x1ae6700) at wtf/FastMalloc.cpp:1497
#5  0x003b9e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#6  0x0025a73e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 9 (Thread 0xb4a6eb70 (LWP 3491)):
#0  0x00189416 in __kernel_vsyscall ()
#1  0x003be48c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x002683fd in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x00677817 in ?? () from /usr/lib/libQtScript.so.4
#4  0x00677851 in ?? () from /usr/lib/libQtScript.so.4
#5  0x003b9e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#6  0x0025a73e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 8 (Thread 0xb3fafb70 (LWP 3492)):
#0  0x00189416 in __kernel_vsyscall ()
#1  0x003be48c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x002683fd in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x08712467 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQtCore.so.4
#4  0x001797e0 in ?? () from /usr/lib/libthreadweaver.so.4
#5  0x0017c47c in ?? () from /usr/lib/libthreadweaver.so.4
#6  0x0017942b in ?? () from /usr/lib/libthreadweaver.so.4
#7  0x0017c56a in ?? () from /usr/lib/libthreadweaver.so.4
#8  0x00179373 in ?? () from /usr/lib/libthreadweaver.so.4
#9  0x0017c589 in ?? () from /usr/lib/libthreadweaver.so.4
#10 0x00179373 in ?? () from /usr/lib/libthreadweaver.so.4
#11 0x0017af9e in ?? () from /usr/lib/libthreadweaver.so.4
#12 0x0017b05b in ThreadWeaver::Thread::run() () from /usr/lib/libthreadweaver.so.4
#13 0x08711da2 in ?? () from /usr/lib/libQtCore.so.4
#14 0x003b9e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#15 0x0025a73e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 7 (Thread 0xb237bb70 (LWP 3493)):
#0  0x00401d41 in clock_gettime () from /lib/i386-linux-gnu/librt.so.1
#1  0x08767dd8 in ?? () from /usr/lib/libQtCore.so.4
#2  0x088344f2 in ?? () from /usr/lib/libQtCore.so.4
#3  0x08832d32 in ?? () from /usr/lib/libQtCore.so.4
#4  0x08832dcd in ?? () from /usr/lib/libQtCore.so.4
#5  0x04c96fd4 in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#6  0x04c97e63 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#7  0x04c98524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#8  0x08833577 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#9  0x08805289 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#10 0x08805522 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#11 0x0870f2a0 in QThread::exec() () from /usr/lib/libQtCore.so.4
#12 0x087e6fdb in ?? () from /usr/lib/libQtCore.so.4
#13 0x08711da2 in ?? () from /usr/lib/libQtCore.so.4
#14 0x003b9e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#15 0x0025a73e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 6 (Thread 0xa6fb6b70 (LWP 3507)):
#0  0x00189416 in __kernel_vsyscall ()
#1  0x003be48c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x002683fd in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x08712467 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQtCore.so.4
#4  0x001797e0 in ?? () from /usr/lib/libthreadweaver.so.4
#5  0x0017c47c in ?? () from /usr/lib/libthreadweaver.so.4
#6  0x0017942b in ?? () from /usr/lib/libthreadweaver.so.4
#7  0x0017c56a in ?? () from /usr/lib/libthreadweaver.so.4
#8  0x00179373 in ?? () from /usr/lib/libthreadweaver.so.4
#9  0x0017c589 in ?? () from /usr/lib/libthreadweaver.so.4
#10 0x00179373 in ?? () from /usr/lib/libthreadweaver.so.4
#11 0x0017c589 in ?? () from /usr/lib/libthreadweaver.so.4
#12 0x00179373 in ?? () from /usr/lib/libthreadweaver.so.4
#13 0x0017af9e in ?? () from /usr/lib/libthreadweaver.so.4
#14 0x0017b05b in ThreadWeaver::Thread::run() () from /usr/lib/libthreadweaver.so.4
#15 0x08711da2 in ?? () from /usr/lib/libQtCore.so.4
#16 0x003b9e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#17 0x0025a73e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 5 (Thread 0xa8ab8b70 (LWP 4160)):
#0  0x00189416 in __kernel_vsyscall ()
#1  0x003be48c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x002683fd in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x08712467 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQtCore.so.4
#4  0x001797e0 in ?? () from /usr/lib/libthreadweaver.so.4
#5  0x0017c47c in ?? () from /usr/lib/libthreadweaver.so.4
#6  0x0017942b in ?? () from /usr/lib/libthreadweaver.so.4
#7  0x0017c56a in ?? () from /usr/lib/libthreadweaver.so.4
#8  0x00179373 in ?? () from /usr/lib/libthreadweaver.so.4
#9  0x0017af9e in ?? () from /usr/lib/libthreadweaver.so.4
#10 0x0017b05b in ThreadWeaver::Thread::run() () from /usr/lib/libthreadweaver.so.4
#11 0x08711da2 in ?? () from /usr/lib/libQtCore.so.4
#12 0x003b9e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#13 0x0025a73e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 4 (Thread 0xa67b5b70 (LWP 4185)):
#0  0x00189416 in __kernel_vsyscall ()
#1  0x003be48c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x002683fd in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x08712467 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQtCore.so.4
#4  0x001797e0 in ?? () from /usr/lib/libthreadweaver.so.4
#5  0x0017c47c in ?? () from /usr/lib/libthreadweaver.so.4
#6  0x0017942b in ?? () from /usr/lib/libthreadweaver.so.4
#7  0x0017c56a in ?? () from /usr/lib/libthreadweaver.so.4
#8  0x00179373 in ?? () from /usr/lib/libthreadweaver.so.4
#9  0x0017c589 in ?? () from /usr/lib/libthreadweaver.so.4
#10 0x00179373 in ?? () from /usr/lib/libthreadweaver.so.4
#11 0x0017af9e in ?? () from /usr/lib/libthreadweaver.so.4
#12 0x0017b05b in ThreadWeaver::Thread::run() () from /usr/lib/libthreadweaver.so.4
#13 0x08711da2 in ?? () from /usr/lib/libQtCore.so.4
#14 0x003b9e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#15 0x0025a73e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 3 (Thread 0xa2edab70 (LWP 4234)):
#0  0x00189416 in __kernel_vsyscall ()
#1  0x0024bf76 in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0x04ca884b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x04c981af in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x04c98524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x08833577 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#6  0x08805289 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#7  0x08805522 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#8  0x0870f2a0 in QThread::exec() () from /usr/lib/libQtCore.so.4
#9  0x087e6fdb in ?? () from /usr/lib/libQtCore.so.4
#10 0x08711da2 in ?? () from /usr/lib/libQtCore.so.4
#11 0x003b9e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0x0025a73e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 2 (Thread 0x9fed4b70 (LWP 4314)):
#0  0x00189416 in __kernel_vsyscall ()
#1  0x003be834 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x00268454 in pthread_cond_timedwait () from /lib/i386-linux-gnu/libc.so.6
#3  0x087123e5 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQtCore.so.4
#4  0x087058f1 in ?? () from /usr/lib/libQtCore.so.4
#5  0x08711da2 in ?? () from /usr/lib/libQtCore.so.4
#6  0x003b9e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#7  0x0025a73e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 1 (Thread 0xb76fd710 (LWP 3489)):
[KCrash Handler]
#7  WebCore::Frame::document (this=0x0) at page/Frame.cpp:281
#8  0x010aa251 in WebCore::FrameView::scrollToFragment (this=0xa75831c0, url=...) at page/FrameView.cpp:968
#9  0x0102ce43 in WebCore::FrameLoader::loadInSameDocument (this=0xa728c0b0, url=..., stateObject=0x0, isNewNavigation=false) at loader/FrameLoader.cpp:1769
#10 0x0102d10e in WebCore::FrameLoader::navigateWithinDocument (this=0xa728c0b0, item=0xa472a960) at loader/FrameLoader.cpp:3729
#11 0x0103b873 in WebCore::HistoryController::recursiveGoToItem (this=0xa728c17c, item=0xa472a960, fromItem=0xa472a960, type=WebCore::FrameLoadTypeIndexedBackForward) at loader/HistoryController.cpp:589
#12 0x0103bcf0 in WebCore::HistoryController::goToItem (this=0xa728c17c, targetItem=0xa472a960, type=WebCore::FrameLoadTypeIndexedBackForward) at loader/HistoryController.cpp:231
#13 0x010acc1a in WebCore::Page::goToItem (this=0xa6ff3460, item=0xa472a960, type=WebCore::FrameLoadTypeIndexedBackForward) at page/Page.cpp:308
#14 0x0127e630 in QWebHistory::goToItem (this=0xa44e8a8, item=...) at ../WebKit/qt/Api/qwebhistory.cpp:396
#15 0x0045272b in MainWindow::openPrevious (this=0x99e4090, mouseButtons=..., keyboardModifiers=...) at /build/buildd/rekonq-0.7.0/src/mainwindow.cpp:1033
#16 0x00458ec1 in MainWindow::qt_metacall (this=0x99e4090, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0xbff76f04) at /build/buildd/rekonq-0.7.0/obj-i686-linux-gnu/src/mainwindow.moc:176
#17 0x0880c6ba in QMetaObject::metacall(QObject*, QMetaObject::Call, int, void**) () from /usr/lib/libQtCore.so.4
#18 0x0881c4ff in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#19 0x01be6a69 in KAction::triggered(QFlags<Qt::MouseButton>, QFlags<Qt::KeyboardModifier>) () from /usr/lib/libkdeui.so.5
#20 0x01be6b12 in ?? () from /usr/lib/libkdeui.so.5
#21 0x01be7176 in KAction::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libkdeui.so.5
#22 0x0880c6ba in QMetaObject::metacall(QObject*, QMetaObject::Call, int, void**) () from /usr/lib/libQtCore.so.4
#23 0x0881c4ff in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#24 0x022188d9 in QAction::triggered(bool) () from /usr/lib/libQtGui.so.4
#25 0x02218b38 in QAction::activate(QAction::ActionEvent) () from /usr/lib/libQtGui.so.4
#26 0x026f3252 in QToolButton::nextCheckState() () from /usr/lib/libQtGui.so.4
#27 0x026220c3 in ?? () from /usr/lib/libQtGui.so.4
#28 0x026223be in QAbstractButton::mouseReleaseEvent(QMouseEvent*) () from /usr/lib/libQtGui.so.4
#29 0x026f333c in QToolButton::mouseReleaseEvent(QMouseEvent*) () from /usr/lib/libQtGui.so.4
#30 0x0227813a in QWidget::event(QEvent*) () from /usr/lib/libQtGui.so.4
#31 0x0262140e in QAbstractButton::event(QEvent*) () from /usr/lib/libQtGui.so.4
#32 0x026f4a6a in QToolButton::event(QEvent*) () from /usr/lib/libQtGui.so.4
#33 0x0221fd24 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#34 0x02225201 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#35 0x01cd83ca in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#36 0x088060bb in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#37 0x02220c3b in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () from /usr/lib/libQtGui.so.4
#38 0x022aa2bc in ?? () from /usr/lib/libQtGui.so.4
#39 0x022a8746 in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib/libQtGui.so.4
#40 0x022d3b84 in ?? () from /usr/lib/libQtGui.so.4
#41 0x04c97aa8 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#42 0x04c98270 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#43 0x04c98524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#44 0x0883353c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#45 0x022d3775 in ?? () from /usr/lib/libQtGui.so.4
#46 0x08805289 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#47 0x08805522 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#48 0x08809ecc in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#49 0x0221d8e7 in QApplication::exec() () from /usr/lib/libQtGui.so.4
#50 0x004d6ee3 in kdemain (argc=1, argv=0xbff783e4) at /build/buildd/rekonq-0.7.0/src/main.cpp:215
#51 0x080485ab in main (argc=1, argv=0xbff783e4) at /build/buildd/rekonq-0.7.0/obj-i686-linux-gnu/src/rekonq_dummy.cpp:3

Reported using DrKonqi