Bug 300466

Application: konqueror (4.7.4 (4.7.4))
KDE Platform Version: 4.7.4 (4.7.4)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-2-amd64 x86_64
Distribution: Debian GNU/Linux unstable (sid)

-- Information about the crash:
- What I was doing when the application crashed:
I had konqueror opened. If I remember correctly I had mixed KHTML kpart tabs with webkit tabs, but I had already closed all webkit tabs.
I tried to change to another activity, but since one of the applications in the other activity crashed the activity change looked like failed. After some time analyzing the backtrace of the other application konqueror crashed.
kwebkitpart version: 1.2 branch head self build.
HTH,

-- Backtrace:
Application: Konqueror (konqueror), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f951b893760 (LWP 22035))]

Thread 7 (Thread 0x7f94fbfff700 (LWP 22676)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f94f9984c0d in WTF::TCMalloc_PageHeap::scavengerThread (this=0x7f94fa345280) at wtf/FastMalloc.cpp:2499
#2  0x00007f94f9984d19 in WTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at wtf/FastMalloc.cpp:1622
#3  0x00007f95141aeb50 in start_thread (arg=<optimized out>) at pthread_create.c:304
#4  0x00007f951b1249dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7f94f7363700 (LWP 22677)):
#0  0x00007fff2d4ff8de in ?? ()
#1  0x00007f9513b96e86 in *__GI_clock_gettime (clock_id=1, tp=0x7f94f7362c30) at ../sysdeps/unix/clock_gettime.c:116
#2  0x00007f9518b2ff14 in do_gettime (frac=0x7f94f7362c48, sec=0x7f94f7362c40) at tools/qelapsedtimer_unix.cpp:123
#3  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#4  0x00007f9518c07e9d in QTimerInfoList::updateCurrentTime (this=0x7f94fc003f60) at kernel/qeventdispatcher_unix.cpp:343
#5  0x00007f9518c07b51 in timerSourceCheckHelper (src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:150
#6  timerSourceCheckHelper (src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:144
#7  0x00007f95138e5feb in g_main_context_check (context=context@entry=0x7f94fc007c70, max_priority=2147483647, fds=fds@entry=0x7f94fc001e40, n_fds=n_fds@entry=1) at /tmp/buildd/glib2.0-2.32.3/./glib/gmain.c:3023
#8  0x00007f95138e6472 in g_main_context_iterate (context=context@entry=0x7f94fc007c70, block=block@entry=1, dispatch=dispatch@entry=1, self=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at /tmp/buildd/glib2.0-2.32.3/./glib/gmain.c:3143
#9  0x00007f95138e65f4 in g_main_context_iteration (context=0x7f94fc007c70, may_block=1) at /tmp/buildd/glib2.0-2.32.3/./glib/gmain.c:3207
#10 0x00007f9518c07736 in QEventDispatcherGlib::processEvents (this=0x7f94fc003470, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#11 0x00007f9518bd6f92 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#12 0x00007f9518bd71e7 in QEventLoop::exec (this=0x7f94f7362e20, flags=...) at kernel/qeventloop.cpp:204
#13 0x00007f9518ad6307 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#14 0x00007f9518ad932b in QThreadPrivate::start (arg=0x2caf6b0) at thread/qthread_unix.cpp:298
#15 0x00007f95141aeb50 in start_thread (arg=<optimized out>) at pthread_create.c:304
#16 0x00007f951b1249dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#17 0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7f94fb3bf700 (LWP 22771)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f94b4e15945 in queue_processor(void*) () from /usr/lib/jvm/java-6-openjdk-amd64/jre/lib/amd64/IcedTeaPlugin.so
#2  0x00007f95141aeb50 in start_thread (arg=<optimized out>) at pthread_create.c:304
#3  0x00007f951b1249dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#4  0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f94b2709700 (LWP 22772)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f94b4e15945 in queue_processor(void*) () from /usr/lib/jvm/java-6-openjdk-amd64/jre/lib/amd64/IcedTeaPlugin.so
#2  0x00007f95141aeb50 in start_thread (arg=<optimized out>) at pthread_create.c:304
#3  0x00007f951b1249dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#4  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f94b1f08700 (LWP 22773)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f94b4e15945 in queue_processor(void*) () from /usr/lib/jvm/java-6-openjdk-amd64/jre/lib/amd64/IcedTeaPlugin.so
#2  0x00007f95141aeb50 in start_thread (arg=<optimized out>) at pthread_create.c:304
#3  0x00007f951b1249dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#4  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f94a9237700 (LWP 26446)):
#0  0x00007f95141b125a in __pthread_mutex_lock (mutex=0x2b2c970) at pthread_mutex_lock.c:113
#1  0x00007f95139221b1 in g_mutex_lock (mutex=mutex@entry=0x3c97040) at /tmp/buildd/glib2.0-2.32.3/./glib/gthread-posix.c:208
#2  0x00007f95138e56ae in g_main_context_acquire (context=0x3c97040) at /tmp/buildd/glib2.0-2.32.3/./glib/gmain.c:2624
#3  0x00007f95138e63b4 in g_main_context_iterate (context=context@entry=0x3c97040, block=block@entry=1, dispatch=dispatch@entry=1, self=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at /tmp/buildd/glib2.0-2.32.3/./glib/gmain.c:3096
#4  0x00007f95138e65f4 in g_main_context_iteration (context=0x3c97040, may_block=1) at /tmp/buildd/glib2.0-2.32.3/./glib/gmain.c:3207
#5  0x00007f9518c07736 in QEventDispatcherGlib::processEvents (this=0x3d36420, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f9518bd6f92 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f9518bd71e7 in QEventLoop::exec (this=0x7f94a9236df0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f9518ad6307 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007f9519e6e71e in KIO::NameLookUpThread::run (this=0x9d2e40) at ../../kio/kio/hostinfo.cpp:226
#10 0x00007f9518ad932b in QThreadPrivate::start (arg=0x9d2e40) at thread/qthread_unix.cpp:298
#11 0x00007f95141aeb50 in start_thread (arg=<optimized out>) at pthread_create.c:304
#12 0x00007f951b1249dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f951b893760 (LWP 22035)):
[KCrash Handler]
#6  0x00007f94f94d371b in get (this=<optimized out>) at ../JavaScriptCore/wtf/OwnPtr.h:56
#7  scrollableAreaSet (this=<optimized out>) at page/Page.h:292
#8  WebCore::FrameView::notifyPageThatContentAreaWillPaint (this=0x7f94b59f1b00) at page/FrameView.cpp:2176
#9  0x00007f94f954894c in WebCore::ScrollView::paint (this=0x7f94b59f1b00, context=0x7fff2d4f7640, rect=...) at platform/ScrollView.cpp:994
#10 0x00007f94f964defa in WebCore::RenderWidget::paint (this=0x7f94fa486ab0, paintInfo=..., tx=0, ty=0) at rendering/RenderWidget.cpp:310
#11 0x00007f94f95cc0d9 in paint (ty=0, tx=0, paintInfo=..., this=0x7f94fa486890) at rendering/RenderFrameSet.cpp:142
#12 WebCore::RenderFrameSet::paint (this=0x7f94fa486890, paintInfo=..., tx=<optimized out>, ty=<optimized out>) at rendering/RenderFrameSet.cpp:121
#13 0x00007f94f957c519 in WebCore::RenderBlock::paintChildren (this=0x7f94fa486698, paintInfo=..., tx=0, ty=0) at rendering/RenderBlock.cpp:2445
#14 0x00007f94f95906a2 in WebCore::RenderBlock::paintObject (this=0x7f94fa486698, paintInfo=..., tx=0, ty=0) at rendering/RenderBlock.cpp:2512
#15 0x00007f94f9579c23 in WebCore::RenderBlock::paint (this=0x7f94fa486698, paintInfo=..., tx=0, ty=0) at rendering/RenderBlock.cpp:2287
#16 0x00007f94f95ebd66 in WebCore::RenderLayer::paintLayer (this=0x7f94fa486750, rootLayer=rootLayer@entry=0x7f94fa486558, p=p@entry=0x7fff2d4f7640, paintDirtyRect=..., paintBehavior=paintBehavior@entry=0, paintingRoot=paintingRoot@entry=0x0, overlapTestRequests=overlapTestRequests@entry=0x7fff2d4f74a0, paintFlags=paintFlags@entry=0) at rendering/RenderLayer.cpp:2634
#17 0x00007f94f95eca4a in WebCore::RenderLayer::paintList (this=0x7f94fa486558, list=0x7f94fa4f8c78, rootLayer=0x7f94fa486558, p=0x7fff2d4f7640, paintDirtyRect=..., paintBehavior=0, paintingRoot=0x0, overlapTestRequests=0x7fff2d4f74a0, paintFlags=0) at rendering/RenderLayer.cpp:2693
#18 0x00007f94f95eb47f in WebCore::RenderLayer::paintLayer (this=0x7f94fa486558, rootLayer=0x7f94fa486558, p=0x7fff2d4f7640, paintDirtyRect=..., paintBehavior=0, paintingRoot=0x0, overlapTestRequests=overlapTestRequests@entry=0x7fff2d4f74a0, paintFlags=paintFlags@entry=0) at rendering/RenderLayer.cpp:2655
#19 0x00007f94f95ecb54 in WebCore::RenderLayer::paint (this=<optimized out>, p=<optimized out>, damageRect=..., paintBehavior=<optimized out>, paintingRoot=<optimized out>) at rendering/RenderLayer.cpp:2424
#20 0x00007f94f94d6b19 in WebCore::FrameView::paintContents (this=this@entry=0x7f94fa47db80, p=p@entry=0x7fff2d4f7640, rect=...) at page/FrameView.cpp:2415
#21 0x00007f94f90e6ee2 in QWebFramePrivate::renderRelativeCoords (this=0x22ad2c0, context=context@entry=0x7fff2d4f7640, layers=..., clip=...) at Api/qwebframe.cpp:380
#22 0x00007f94f90e7122 in QWebFrame::render (this=0x5185170, painter=<optimized out>, clip=...) at Api/qwebframe.cpp:1233
#23 0x00007f94f90ff3c9 in QWebView::paintEvent (this=0x3011f00, ev=0x7fff2d4f7f70) at Api/qwebview.cpp:961
#24 0x00007f9517d2c916 in QWidget::event (this=0x3011f00, event=0x7fff2d4f7f70) at kernel/qwidget.cpp:8508
#25 0x00007f94f90ff4a7 in QWebView::event (this=0x3011f00, e=0x7fff2d4f7f70) at Api/qwebview.cpp:865
#26 0x00007f9517cdc204 in notify_helper (e=0x7fff2d4f7f70, receiver=0x3011f00, this=0x9de090) at kernel/qapplication.cpp:4559
#27 QApplicationPrivate::notify_helper (this=0x9de090, receiver=0x3011f00, e=0x7fff2d4f7f70) at kernel/qapplication.cpp:4531
#28 0x00007f9517ce1083 in QApplication::notify (this=0x7fff2d4fcc90, receiver=0x3011f00, e=0x7fff2d4f7f70) at kernel/qapplication.cpp:4420
#29 0x00007f951965b8d6 in KApplication::notify (this=0x7fff2d4fcc90, receiver=0x3011f00, event=0x7fff2d4f7f70) at ../../kdeui/kernel/kapplication.cpp:311
#30 0x00007f9518bd81ac in QCoreApplication::notifyInternal (this=0x7fff2d4fcc90, receiver=0x3011f00, event=0x7fff2d4f7f70) at kernel/qcoreapplication.cpp:876
#31 0x00007f9517d285b6 in sendSpontaneousEvent (event=0x7fff2d4f7f70, receiver=0x3011f00) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#32 QWidgetPrivate::drawWidget (this=0x552c3d0, pdev=0x242d040, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1fc1400) at kernel/qwidget.cpp:5585
#33 0x00007f9517d2922f in QWidgetPrivate::paintSiblingsRecursive (this=0x3f80ee0, pdev=0x242d040, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1fc1400) at kernel/qwidget.cpp:5794
#34 0x00007f9517d282ec in QWidgetPrivate::drawWidget (this=0x3f80ee0, pdev=0x242d040, rgn=..., offset=..., flags=<optimized out>, sharedPainter=0x0, backingStore=0x1fc1400) at kernel/qwidget.cpp:5638
#35 0x00007f9517d2922f in QWidgetPrivate::paintSiblingsRecursive (this=0x43831d0, pdev=0x242d040, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1fc1400) at kernel/qwidget.cpp:5794
#36 0x00007f9517d282ec in QWidgetPrivate::drawWidget (this=0x43831d0, pdev=0x242d040, rgn=..., offset=..., flags=<optimized out>, sharedPainter=0x0, backingStore=0x1fc1400) at kernel/qwidget.cpp:5638
#37 0x00007f9517d2922f in QWidgetPrivate::paintSiblingsRecursive (this=0x1fc5bc0, pdev=0x242d040, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1fc1400) at kernel/qwidget.cpp:5794
#38 0x00007f9517d282ec in QWidgetPrivate::drawWidget (this=0x1fc5bc0, pdev=0x242d040, rgn=..., offset=..., flags=<optimized out>, sharedPainter=0x0, backingStore=0x1fc1400) at kernel/qwidget.cpp:5638
#39 0x00007f9517d2922f in QWidgetPrivate::paintSiblingsRecursive (this=0x1fc5980, pdev=0x242d040, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1fc1400) at kernel/qwidget.cpp:5794
#40 0x00007f9517d28fb7 in QWidgetPrivate::paintSiblingsRecursive (this=0x1fc5980, pdev=0x242d040, siblings=..., index=0, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1fc1400) at kernel/qwidget.cpp:5781
#41 0x00007f9517d28fb7 in QWidgetPrivate::paintSiblingsRecursive (this=0x1fc5980, pdev=0x242d040, siblings=..., index=1, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1fc1400) at kernel/qwidget.cpp:5781
#42 0x00007f9517d28fb7 in QWidgetPrivate::paintSiblingsRecursive (this=0x1fc5980, pdev=0x242d040, siblings=..., index=2, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1fc1400) at kernel/qwidget.cpp:5781
#43 0x00007f9517d282ec in QWidgetPrivate::drawWidget (this=0x1fc5980, pdev=0x242d040, rgn=..., offset=..., flags=<optimized out>, sharedPainter=0x0, backingStore=0x1fc1400) at kernel/qwidget.cpp:5638
#44 0x00007f9517d2922f in QWidgetPrivate::paintSiblingsRecursive (this=0xc337c0, pdev=0x242d040, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1fc1400) at kernel/qwidget.cpp:5794
#45 0x00007f9517d282ec in QWidgetPrivate::drawWidget (this=0xc337c0, pdev=0x242d040, rgn=..., offset=..., flags=<optimized out>, sharedPainter=0x0, backingStore=0x1fc1400) at kernel/qwidget.cpp:5638
#46 0x00007f9517ef5848 in QWidgetBackingStore::sync (this=0x1fc1400) at painting/qbackingstore.cpp:1373
#47 0x00007f9517d1f310 in QWidgetPrivate::syncBackingStore (this=0xc337c0) at kernel/qwidget.cpp:1891
#48 0x00007f9517d2ce2c in QWidget::event (this=0xc33430, event=0x2a6e230) at kernel/qwidget.cpp:8655
#49 0x00007f951810285b in QMainWindow::event (this=0xc33430, event=0x2a6e230) at widgets/qmainwindow.cpp:1478
#50 0x00007f951974c6c8 in KXmlGuiWindow::event (this=0xc33430, ev=0x2a6e230) at ../../kdeui/xmlgui/kxmlguiwindow.cpp:126
#51 0x00007f951b45020c in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_konqueror.so
#52 0x00007f9517cdc204 in notify_helper (e=0x2a6e230, receiver=0xc33430, this=0x9de090) at kernel/qapplication.cpp:4559
#53 QApplicationPrivate::notify_helper (this=0x9de090, receiver=0xc33430, e=0x2a6e230) at kernel/qapplication.cpp:4531
#54 0x00007f9517ce1083 in QApplication::notify (this=0x7fff2d4fcc90, receiver=0xc33430, e=0x2a6e230) at kernel/qapplication.cpp:4420
#55 0x00007f951965b8d6 in KApplication::notify (this=0x7fff2d4fcc90, receiver=0xc33430, event=0x2a6e230) at ../../kdeui/kernel/kapplication.cpp:311
#56 0x00007f9518bd81ac in QCoreApplication::notifyInternal (this=0x7fff2d4fcc90, receiver=0xc33430, event=0x2a6e230) at kernel/qcoreapplication.cpp:876
#57 0x00007f9518bdbf7a in sendEvent (event=0x2a6e230, receiver=0xc33430) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#58 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x9af950) at kernel/qcoreapplication.cpp:1500
#59 0x00007f9518c072a3 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#60 postEventSourceDispatch (s=s@entry=0x9ddf80) at kernel/qeventdispatcher_glib.cpp:279
#61 0x00007f95138e6205 in g_main_dispatch (context=0x9dfd40) at /tmp/buildd/glib2.0-2.32.3/./glib/gmain.c:2539
#62 g_main_context_dispatch (context=context@entry=0x9dfd40) at /tmp/buildd/glib2.0-2.32.3/./glib/gmain.c:3075
#63 0x00007f95138e6538 in g_main_context_iterate (context=context@entry=0x9dfd40, block=block@entry=1, dispatch=dispatch@entry=1, self=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at /tmp/buildd/glib2.0-2.32.3/./glib/gmain.c:3146
#64 0x00007f95138e65f4 in g_main_context_iteration (context=0x9dfd40, may_block=1) at /tmp/buildd/glib2.0-2.32.3/./glib/gmain.c:3207
#65 0x00007f9518c076cf in QEventDispatcherGlib::processEvents (this=0x9b1230, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#66 0x00007f9517d80aee in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#67 0x00007f9518bd6f92 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#68 0x00007f9518bd71e7 in QEventLoop::exec (this=0x7fff2d4faa40, flags=...) at kernel/qeventloop.cpp:204
#69 0x00007f95181a8526 in QDialog::exec (this=0x7fff2d4faac0) at dialogs/qdialog.cpp:554
#70 0x00007f95181ca7d2 in showNewMessageBox (parent=<optimized out>, icon=<optimized out>, title=..., text=..., buttons=..., defaultButton=QMessageBox::NoButton) at dialogs/qmessagebox.cpp:1538
#71 0x00007f95181ca89f in QMessageBox::information (parent=<optimized out>, title=..., text=..., buttons=..., defaultButton=<optimized out>) at dialogs/qmessagebox.cpp:1573
#72 0x00007f94f90f92e4 in information (button1=QMessageBox::NoButton, button0=QMessageBox::Ok, text=..., title=..., parent=0x3011f00) at /usr/include/qt4/QtGui/qmessagebox.h:230
#73 QWebPage::javaScriptAlert (this=0x5400300, frame=<optimized out>, msg=...) at Api/qwebpage.cpp:2114
#74 0x00007f94f91162fb in WebCore::ChromeClientQt::runJavaScriptAlert (this=0x536b3b0, f=f@entry=0x7f94fa45bb00, msg=...) at WebCoreSupport/ChromeClientQt.cpp:327
#75 0x00007f94f94a1037 in WebCore::Chrome::runJavaScriptAlert (this=0x7f94fa4452e8, frame=0x7f94fa45bb00, message=...) at page/Chrome.cpp:297
#76 0x00007f94f8ebb2bd in WebCore::jsDOMWindowPrototypeFunctionAlert (exec=0x7f94b5aa6458) at ../../WebCore/generated/JSDOMWindow.cpp:10219
#77 0x00007f94b5ea61e8 in ?? ()
#78 0x00007f94b5aa6458 in ?? ()
#79 0x00007f94b5efcbe5 in ?? ()
#80 0x00007fff00000000 in ?? ()
#81 0x00007f94b55f6610 in ?? ()
#82 0x00007f94b5853418 in ?? ()
#83 0x00007f94fb3f1050 in ?? ()
#84 0x00007f94b5edda24 in ?? ()
#85 0x0000000000000000 in ?? ()

Reported using DrKonqi