Application: rekonq (2.4.2)
KDE Platform Version: 4.12.5
Qt Version: 4.8.6
Operating System: Linux 3.14.8-200.fc20.x86_64 x86_64
Distribution: "Fedora release 20 (Heisenbug)"

-- Information about the crash:
- What I was doing when the application crashed:
Navigate to google.com, crashes everytime. F20, current updates

The crash can be reproduced every time.

-- Backtrace:
Application: rekonq (rekonq), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
81	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[Current thread is 1 (Thread 0x7f30d6f2a8c0 (LWP 18203))]

Thread 4 (Thread 0x7f308996c700 (LWP 18205)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x0000003a88cbc1bd in JSC::BlockAllocator::blockFreeingThreadMain (this=0x1d71618) at /usr/src/debug/webkit-qtwebkit-23/Source/JavaScriptCore/heap/BlockAllocator.cpp:128
#2  0x0000003a88faea86 in WTF::wtfThreadEntryPoint (param=0x1b3f880) at /usr/src/debug/webkit-qtwebkit-23/Source/WTF/wtf/ThreadingPthreads.cpp:196
#3  0x00000035dfe07f33 in start_thread (arg=0x7f308996c700) at pthread_create.c:309
#4  0x00000035df6f4ded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 3 (Thread 0x7f3083fff700 (LWP 18206)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x0000003a88405e5b in WebCore::IconDatabase::syncThreadMainLoop () from /lib64/libQtWebKit.so.4
#2  0x0000003a88406058 in WebCore::IconDatabase::iconDatabaseSyncThread () from /lib64/libQtWebKit.so.4
#3  0x0000003a88faea86 in WTF::wtfThreadEntryPoint (param=0x1f3d240) at /usr/src/debug/webkit-qtwebkit-23/Source/WTF/wtf/ThreadingPthreads.cpp:196
#4  0x00000035dfe07f33 in start_thread (arg=0x7f3083fff700) at pthread_create.c:309
#5  0x00000035df6f4ded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7f30837fe700 (LWP 18207)):
#0  0x00000035df6ea9dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00000035e3a495b4 in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7f30700027c0, timeout=9178, context=0x7f30700009a0) at gmain.c:4007
#2  g_main_context_iterate (context=context@entry=0x7f30700009a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3708
#3  0x00000035e3a496dc in g_main_context_iteration (context=0x7f30700009a0, may_block=1) at gmain.c:3774
#4  0x00000035e9fb5a7e in QEventDispatcherGlib::processEvents (this=0x7f30700008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:452
#5  0x00000035e9f8595f in QEventLoop::processEvents (this=this@entry=0x7f30837fdd10, flags=...) at kernel/qeventloop.cpp:149
#6  0x00000035e9f85cad in QEventLoop::exec (this=this@entry=0x7f30837fdd10, flags=...) at kernel/qeventloop.cpp:204
#7  0x00000035e9e79e8f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:538
#8  0x00000035e9e7c6bf in QThreadPrivate::start (arg=0x1cc1050) at thread/qthread_unix.cpp:349
#9  0x00000035dfe07f33 in start_thread (arg=0x7f30837fe700) at pthread_create.c:309
#10 0x00000035df6f4ded in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7f30d6f2a8c0 (LWP 18203)):
[KCrash Handler]
#6  __memcpy_sse2_unaligned () at ../sysdeps/x86_64/multiarch/memcpy-sse2-unaligned.S:37
#7  0x0000003a827b39c7 in blend_untransformed_generic<(SpanMethod)0> (count=<optimized out>, spans=0x7fff560f8ca0, userData=0x2130c50) at painting/qdrawhelper.cpp:3636
#8  0x0000003a8278d0f6 in fillRect_normalized (r=..., data=data@entry=0x2130c50, pe=pe@entry=0x2130960) at painting/qpaintengine_raster.cpp:1494
#9  0x0000003a82792fbd in QRasterPaintEngine::drawImage (this=<optimized out>, r=..., img=..., sr=...) at painting/qpaintengine_raster.cpp:2469
#10 0x0000003a8279a7e3 in QRasterPaintEngine::drawPixmap (this=0x1e80760, r=..., pixmap=..., sr=...) at painting/qpaintengine_raster.cpp:2101
#11 0x0000003a8271ea64 in QPainter::drawPixmap (this=0x7fff560fb5d0, r=..., pm=..., sr=...) at painting/qpainter.cpp:5468
#12 0x0000003a8838d427 in WebCore::BitmapImage::draw () from /lib64/libQtWebKit.so.4
#13 0x0000003a88108b0d in WebCore::GraphicsContext::drawImage () from /lib64/libQtWebKit.so.4
#14 0x0000003a88108d9a in WebCore::GraphicsContext::drawImage () from /lib64/libQtWebKit.so.4
#15 0x0000003a88108e0e in WebCore::GraphicsContext::drawImage () from /lib64/libQtWebKit.so.4
#16 0x0000003a8825fcc0 in WebCore::RenderImage::paintIntoRect () from /lib64/libQtWebKit.so.4
#17 0x0000003a882604d4 in WebCore::RenderImage::paintReplaced () from /lib64/libQtWebKit.so.4
#18 0x0000003a882d2784 in WebCore::RenderReplaced::paint () from /lib64/libQtWebKit.so.4
#19 0x0000003a882610d1 in WebCore::RenderImage::paint () from /lib64/libQtWebKit.so.4
#20 0x0000003a881c1cf8 in WebCore::InlineBox::paint () from /lib64/libQtWebKit.so.4
#21 0x0000003a881ca31c in WebCore::InlineFlowBox::paint () from /lib64/libQtWebKit.so.4
#22 0x0000003a88317115 in WebCore::RootInlineBox::paint () from /lib64/libQtWebKit.so.4
#23 0x0000003a88293e6c in WebCore::RenderLineBoxList::paint () from /lib64/libQtWebKit.so.4
#24 0x0000003a881d67ed in WebCore::RenderBlock::paintContents () from /lib64/libQtWebKit.so.4
#25 0x0000003a881eff3b in WebCore::RenderBlock::paintObject () from /lib64/libQtWebKit.so.4
#26 0x0000003a881d2f87 in WebCore::RenderBlock::paint () from /lib64/libQtWebKit.so.4
#27 0x0000003a881d6912 in WebCore::RenderBlock::paintChild () from /lib64/libQtWebKit.so.4
#28 0x0000003a881d6a80 in WebCore::RenderBlock::paintChildren () from /lib64/libQtWebKit.so.4
#29 0x0000003a881d6783 in WebCore::RenderBlock::paintContents () from /lib64/libQtWebKit.so.4
#30 0x0000003a881eff3b in WebCore::RenderBlock::paintObject () from /lib64/libQtWebKit.so.4
#31 0x0000003a881d2f87 in WebCore::RenderBlock::paint () from /lib64/libQtWebKit.so.4
#32 0x0000003a881d6912 in WebCore::RenderBlock::paintChild () from /lib64/libQtWebKit.so.4
#33 0x0000003a881d6a80 in WebCore::RenderBlock::paintChildren () from /lib64/libQtWebKit.so.4
#34 0x0000003a881d6783 in WebCore::RenderBlock::paintContents () from /lib64/libQtWebKit.so.4
#35 0x0000003a881eff3b in WebCore::RenderBlock::paintObject () from /lib64/libQtWebKit.so.4
#36 0x0000003a881d2f87 in WebCore::RenderBlock::paint () from /lib64/libQtWebKit.so.4
#37 0x0000003a881d6912 in WebCore::RenderBlock::paintChild () from /lib64/libQtWebKit.so.4
#38 0x0000003a881d6a80 in WebCore::RenderBlock::paintChildren () from /lib64/libQtWebKit.so.4
#39 0x0000003a881d6783 in WebCore::RenderBlock::paintContents () from /lib64/libQtWebKit.so.4
#40 0x0000003a881eff3b in WebCore::RenderBlock::paintObject () from /lib64/libQtWebKit.so.4
#41 0x0000003a881d2f87 in WebCore::RenderBlock::paint () from /lib64/libQtWebKit.so.4
#42 0x0000003a8827e05f in WebCore::RenderLayer::paintLayerContents () from /lib64/libQtWebKit.so.4
#43 0x0000003a8827e809 in WebCore::RenderLayer::paintLayer () from /lib64/libQtWebKit.so.4
#44 0x0000003a8827f846 in WebCore::RenderLayer::paintList () from /lib64/libQtWebKit.so.4
#45 0x0000003a8827d2ce in WebCore::RenderLayer::paintLayerContents () from /lib64/libQtWebKit.so.4
#46 0x0000003a8827e809 in WebCore::RenderLayer::paintLayer () from /lib64/libQtWebKit.so.4
#47 0x0000003a8827e919 in WebCore::RenderLayer::paint () from /lib64/libQtWebKit.so.4
#48 0x0000003a880c1f4e in WebCore::FrameView::paintContents () from /lib64/libQtWebKit.so.4
#49 0x0000003a87a0523d in QWebFramePrivate::renderRelativeCoords () from /lib64/libQtWebKit.so.4
#50 0x0000003a87a05517 in QWebFrame::render () from /lib64/libQtWebKit.so.4
#51 0x0000003a87a1e960 in QWebView::paintEvent () from /lib64/libQtWebKit.so.4
#52 0x00007f30d7272de4 in WebView::paintEvent (this=0x1dac630, event=<optimized out>) at /usr/src/debug/rekonq-2.4.2/src/webtab/webview.cpp:752
#53 0x0000003a8261d816 in QWidget::event (this=0x1dac630, event=0x7fff560fbb20) at kernel/qwidget.cpp:8546
#54 0x0000003a87a1f778 in QWebView::event () from /lib64/libQtWebKit.so.4
#55 0x0000003a825cae7c in QApplicationPrivate::notify_helper (this=0x1b511c0, receiver=0x1dac630, e=0x7fff560fbb20) at kernel/qapplication.cpp:4565
#56 0x0000003a825d17e5 in QApplication::notify (this=this@entry=0x7fff560fc600, receiver=receiver@entry=0x1dac630, e=e@entry=0x7fff560fbb20) at kernel/qapplication.cpp:4351
#57 0x0000003a7fc4ab0a in KApplication::notify (this=0x7fff560fc600, receiver=0x1dac630, event=0x7fff560fbb20) at /usr/src/debug/kdelibs-4.12.5/kdeui/kernel/kapplication.cpp:311
#58 0x00000035e9f86ebd in QCoreApplication::notifyInternal (this=0x7fff560fc600, receiver=0x1dac630, event=0x7fff560fbb20) at kernel/qcoreapplication.cpp:953
#59 0x0000003a82617b79 in QWidgetPrivate::drawWidget (this=this@entry=0x2cc4ba0, pdev=0x211e760, rgn=..., offset=..., flags=68, sharedPainter=sharedPainter@entry=0x0, backingStore=backingStore@entry=0x1d45690) at ../../src/corelib/kernel/qcoreapplication.h:234
#60 0x0000003a827e33ba in QWidgetBackingStore::sync (this=0x1d45690) at painting/qbackingstore.cpp:1365
#61 0x0000003a8260c4e0 in QWidgetPrivate::syncBackingStore (this=0x1b362d0) at kernel/qwidget.cpp:1894
#62 0x0000003a8261d5a6 in QWidget::event (this=0x1c9b110, event=0x2dc3920) at kernel/qwidget.cpp:8693
#63 0x0000003a825cae7c in QApplicationPrivate::notify_helper (this=0x1b511c0, receiver=0x1c9b110, e=0x2dc3920) at kernel/qapplication.cpp:4565
#64 0x0000003a825d17e5 in QApplication::notify (this=this@entry=0x7fff560fc600, receiver=receiver@entry=0x1c9b110, e=e@entry=0x2dc3920) at kernel/qapplication.cpp:4351
#65 0x0000003a7fc4ab0a in KApplication::notify (this=0x7fff560fc600, receiver=0x1c9b110, event=0x2dc3920) at /usr/src/debug/kdelibs-4.12.5/kdeui/kernel/kapplication.cpp:311
#66 0x00000035e9f86ebd in QCoreApplication::notifyInternal (this=0x7fff560fc600, receiver=receiver@entry=0x1c9b110, event=event@entry=0x2dc3920) at kernel/qcoreapplication.cpp:953
#67 0x00000035e9f8a0d5 in sendEvent (event=0x2dc3920, receiver=0x1c9b110) at kernel/qcoreapplication.h:231
#68 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x1b18150) at kernel/qcoreapplication.cpp:1577
#69 0x00000035e9f8a573 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1470
#70 0x00000035e9fb62de in sendPostedEvents () at kernel/qcoreapplication.h:236
#71 postEventSourceDispatch (s=s@entry=0x1b50fe0) at kernel/qeventdispatcher_glib.cpp:300
#72 0x00000035e3a492a6 in g_main_dispatch (context=0x1b52100) at gmain.c:3066
#73 g_main_context_dispatch (context=context@entry=0x1b52100) at gmain.c:3642
#74 0x00000035e3a49628 in g_main_context_iterate (context=context@entry=0x1b52100, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3713
#75 0x00000035e3a496dc in g_main_context_iteration (context=0x1b52100, may_block=1) at gmain.c:3774
#76 0x00000035e9fb5a5e in QEventDispatcherGlib::processEvents (this=0x1b19ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:450
#77 0x0000003a8266cd86 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:207
#78 0x00000035e9f8595f in QEventLoop::processEvents (this=this@entry=0x7fff560fc4c0, flags=...) at kernel/qeventloop.cpp:149
#79 0x00000035e9f85cad in QEventLoop::exec (this=this@entry=0x7fff560fc4c0, flags=...) at kernel/qeventloop.cpp:204
#80 0x00000035e9f8b399 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1225
#81 0x0000003a825c94ec in QApplication::exec () at kernel/qapplication.cpp:3823
#82 0x00007f30d729462d in kdemain (argc=1, argv=0x7fff560fc758) at /usr/src/debug/rekonq-2.4.2/src/main.cpp:242
#83 0x00000035df621d65 in __libc_start_main (main=0x400880 <main(int, char**)>, argc=1, argv=0x7fff560fc758, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff560fc748) at libc-start.c:285
#84 0x00000000004008b1 in _start ()

Reported using DrKonqi