Application: kontact (4.10.3)
KDE Platform Version: 4.10.3
Qt Version: 4.8.2
Operating System: Linux 3.2.0-44-generic x86_64
Distribution: Ubuntu 12.04.2 LTS

-- Information about the crash:
- What I was doing when the application crashed:
1. Working with kontact/kmail and switching to Akregator
2. For this was the first time after starting kontact, the start window showed up in the right part of Akregator
3. Click on the first news tab which has been pre-loaded from restoring the last session.
4. crash

I could replicate this crash one time by doing exactly the same mouse clicks. During a 2nd trial, I went to the 2nd news tab, and Kontact/Akregator did not crash.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f970f3f27c0 (LWP 12083))]

Thread 5 (Thread 0x7f96f202e700 (LWP 12084)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f970bbe5dec in WTF::TCMalloc_PageHeap::scavengerThread (this=0x7f970c5aede0) at wtf/FastMalloc.cpp:2495
#2  0x00007f970bbe5f19 in WTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at wtf/FastMalloc.cpp:1618
#3  0x00007f9706c7ee9a in start_thread (arg=0x7f96f202e700) at pthread_create.c:308
#4  0x00007f970c91accd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f96f171d700 (LWP 12085)):
#0  0x00007f97063f55d1 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f97063ba02a in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f97063ba164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f970dd5f926 in QEventDispatcherGlib::processEvents (this=0x7f96ec0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f970dd2ee62 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f970dd2f0b7 in QEventLoop::exec (this=0x7f96f171cdc0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f970dc2e077 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f970dc3109b in QThreadPrivate::start (arg=0x1ec7fb0) at thread/qthread_unix.cpp:307
#8  0x00007f9706c7ee9a in start_thread (arg=0x7f96f171d700) at pthread_create.c:308
#9  0x00007f970c91accd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f96a43d6700 (LWP 12088)):
#0  0x00007f97063b9832 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f97063b9f5b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f97063ba164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f970dd5f926 in QEventDispatcherGlib::processEvents (this=0x7f969c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f970dd2ee62 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f970dd2f0b7 in QEventLoop::exec (this=0x7f96a43d5d90, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f970dc2e077 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f970dd0eb6f in QInotifyFileSystemWatcherEngine::run (this=0x215a880) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f970dc3109b in QThreadPrivate::start (arg=0x215a880) at thread/qthread_unix.cpp:307
#9  0x00007f9706c7ee9a in start_thread (arg=0x7f96a43d6700) at pthread_create.c:308
#10 0x00007f970c91accd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f9699fb2700 (LWP 18929)):
#0  0x00007f970c90d8cd in read () at ../sysdeps/unix/syscall-template.S:82
#1  0x00007f97063f48cf in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f97063b9ba4 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f97063b9fd6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f97063ba164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f970dd5f926 in QEventDispatcherGlib::processEvents (this=0x7f96880008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f970dd2ee62 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f970dd2f0b7 in QEventLoop::exec (this=0x7f9699fb1d90, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f970dc2e077 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007f970dd0eb6f in QInotifyFileSystemWatcherEngine::run (this=0x7e78830) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007f970dc3109b in QThreadPrivate::start (arg=0x7e78830) at thread/qthread_unix.cpp:307
#11 0x00007f9706c7ee9a in start_thread (arg=0x7f9699fb2700) at pthread_create.c:308
#12 0x00007f970c91accd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f970f3f27c0 (LWP 12083)):
[KCrash Handler]
#6  0x0000000000000001 in ?? ()
#7  0x00007f970d1002b9 in QWidgetPrivate::render (this=0x117a6a00, target=0x119628b0, targetOffset=..., sourceRegion=..., renderFlags=..., readyToRender=<optimized out>) at kernel/qwidget.cpp:5672
#8  0x00007f970d1006a9 in QWidget::render (this=<optimized out>, target=<optimized out>, targetOffset=..., sourceRegion=..., renderFlags=...) at kernel/qwidget.cpp:5182
#9  0x00007f968eec1046 in copyWidget (r=..., p=0x7fff2d6dfb00, widget=0x11784590, tx=801, ty=194, buffer=0x119628b0, buffered=true) at ../../khtml/rendering/render_replaced.cpp:719
#10 0x00007f968eec15e1 in khtml::RenderWidget::paintWidget (pI=..., widget=0x11784590, tx=801, ty=194, buffer=0x1154d0b0) at ../../khtml/rendering/render_replaced.cpp:788
#11 0x00007f968eec1a59 in khtml::RenderWidget::paint (this=0x1154d000, paintInfo=..., _tx=<optimized out>, _ty=<optimized out>) at ../../khtml/rendering/render_replaced.cpp:643
#12 0x00007f968ee79f20 in khtml::RenderBlock::paintFloats (this=<optimized out>, pI=..., _tx=800, _ty=176, paintSelection=false) at ../../khtml/rendering/render_block.cpp:1911
#13 0x00007f968ee7a0dd in khtml::RenderBlock::paintObject (this=0x11258d68, pI=..., _tx=800, _ty=176, shouldPaintOutline=true) at ../../khtml/rendering/render_block.cpp:1816
#14 0x00007f968eea8024 in khtml::RenderLayer::paintLayer (this=0x112b04a0, rootLayer=0xa33c6e0, p=0x7fff2d6dfb00, paintDirtyRect=..., selectionOnly=false) at ../../khtml/rendering/render_layer.cpp:1125
#15 0x00007f968eea7f13 in khtml::RenderLayer::paintLayer (this=0xa33c860, rootLayer=0xa33c6e0, p=0x7fff2d6dfb00, paintDirtyRect=..., selectionOnly=false) at ../../khtml/rendering/render_layer.cpp:1152
#16 0x00007f968eea7f13 in khtml::RenderLayer::paintLayer (this=0xa33c6e0, rootLayer=0xa33c6e0, p=0x7fff2d6dfb00, paintDirtyRect=..., selectionOnly=false) at ../../khtml/rendering/render_layer.cpp:1152
#17 0x00007f968ed3e916 in KHTMLView::paintEvent (this=0x8a5b470, e=<optimized out>) at ../../khtml/khtmlview.cpp:917
#18 0x00007f970d101f66 in QWidget::event (this=0x8a5b470, event=0x7fff2d6e04f0) at kernel/qwidget.cpp:8517
#19 0x00007f970d4c2836 in QFrame::event (this=0x8a5b470, e=0x7fff2d6e04f0) at widgets/qframe.cpp:557
#20 0x00007f968ed3a25d in KHTMLView::widgetEvent (this=0x8a5b470, e=<optimized out>) at ../../khtml/khtmlview.cpp:2213
#21 0x00007f968ed399f4 in KHTMLView::eventFilter (this=0x8a5b470, o=0x8983420, e=0x7fff2d6e04f0) at ../../khtml/khtmlview.cpp:2058
#22 0x00007f970dd304b8 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<optimized out>, receiver=0x8983420, event=0x7fff2d6e04f0) at kernel/qcoreapplication.cpp:1025
#23 0x00007f970d0b177f in notify_helper (e=0x7fff2d6e04f0, receiver=0x8983420, this=0x1d3c840) at kernel/qapplication.cpp:4552
#24 QApplicationPrivate::notify_helper (this=0x1d3c840, receiver=0x8983420, e=0x7fff2d6e04f0) at kernel/qapplication.cpp:4528
#25 0x00007f970d0b6583 in QApplication::notify (this=0x7fff2d6e5250, receiver=0x8983420, e=0x7fff2d6e04f0) at kernel/qapplication.cpp:4417
#26 0x00007f970e79a006 in KApplication::notify (this=0x7fff2d6e5250, receiver=0x8983420, event=0x7fff2d6e04f0) at ../../kdeui/kernel/kapplication.cpp:311
#27 0x00007f970dd3032c in QCoreApplication::notifyInternal (this=0x7fff2d6e5250, receiver=0x8983420, event=0x7fff2d6e04f0) at kernel/qcoreapplication.cpp:915
#28 0x00007f970d0fdc06 in sendSpontaneousEvent (event=0x7fff2d6e04f0, receiver=0x8983420) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#29 QWidgetPrivate::drawWidget (this=0x87b3990, pdev=0x30cd2f0, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1ecb380) at kernel/qwidget.cpp:5594
#30 0x00007f970d0fe87f in QWidgetPrivate::paintSiblingsRecursive (this=0x97efd20, pdev=0x30cd2f0, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1ecb380) at kernel/qwidget.cpp:5803
#31 0x00007f970d0fd93c in QWidgetPrivate::drawWidget (this=0x97efd20, pdev=0x30cd2f0, rgn=..., offset=..., flags=<optimized out>, sharedPainter=0x0, backingStore=0x1ecb380) at kernel/qwidget.cpp:5647
#32 0x00007f970d0fe87f in QWidgetPrivate::paintSiblingsRecursive (this=0x666a7b0, pdev=0x30cd2f0, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1ecb380) at kernel/qwidget.cpp:5803
#33 0x00007f970d0fe607 in QWidgetPrivate::paintSiblingsRecursive (this=0x666a7b0, pdev=0x30cd2f0, siblings=..., index=1, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1ecb380) at kernel/qwidget.cpp:5790
#34 0x00007f970d0fd93c in QWidgetPrivate::drawWidget (this=0x666a7b0, pdev=0x30cd2f0, rgn=..., offset=..., flags=<optimized out>, sharedPainter=0x0, backingStore=0x1ecb380) at kernel/qwidget.cpp:5647
#35 0x00007f970d0fe87f in QWidgetPrivate::paintSiblingsRecursive (this=0x8cb3ce0, pdev=0x30cd2f0, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1ecb380) at kernel/qwidget.cpp:5803
#36 0x00007f970d0fd93c in QWidgetPrivate::drawWidget (this=0x8cb3ce0, pdev=0x30cd2f0, rgn=..., offset=..., flags=<optimized out>, sharedPainter=0x0, backingStore=0x1ecb380) at kernel/qwidget.cpp:5647
#37 0x00007f970d0fe87f in QWidgetPrivate::paintSiblingsRecursive (this=0x8756800, pdev=0x30cd2f0, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1ecb380) at kernel/qwidget.cpp:5803
#38 0x00007f970d0fd93c in QWidgetPrivate::drawWidget (this=0x8756800, pdev=0x30cd2f0, rgn=..., offset=..., flags=<optimized out>, sharedPainter=0x0, backingStore=0x1ecb380) at kernel/qwidget.cpp:5647
#39 0x00007f970d0fe87f in QWidgetPrivate::paintSiblingsRecursive (this=0x8e859e0, pdev=0x30cd2f0, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1ecb380) at kernel/qwidget.cpp:5803
#40 0x00007f970d0fd93c in QWidgetPrivate::drawWidget (this=0x8e859e0, pdev=0x30cd2f0, rgn=..., offset=..., flags=<optimized out>, sharedPainter=0x0, backingStore=0x1ecb380) at kernel/qwidget.cpp:5647
#41 0x00007f970d0fe87f in QWidgetPrivate::paintSiblingsRecursive (this=0x9e119e0, pdev=0x30cd2f0, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1ecb380) at kernel/qwidget.cpp:5803
#42 0x00007f970d0fe607 in QWidgetPrivate::paintSiblingsRecursive (this=0x9e119e0, pdev=0x30cd2f0, siblings=..., index=0, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1ecb380) at kernel/qwidget.cpp:5790
#43 0x00007f970d0fe607 in QWidgetPrivate::paintSiblingsRecursive (this=0x9e119e0, pdev=0x30cd2f0, siblings=..., index=1, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1ecb380) at kernel/qwidget.cpp:5790
#44 0x00007f970d0fd93c in QWidgetPrivate::drawWidget (this=0x9e119e0, pdev=0x30cd2f0, rgn=..., offset=..., flags=<optimized out>, sharedPainter=0x0, backingStore=0x1ecb380) at kernel/qwidget.cpp:5647
#45 0x00007f970d0fe87f in QWidgetPrivate::paintSiblingsRecursive (this=0x86aba00, pdev=0x30cd2f0, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1ecb380) at kernel/qwidget.cpp:5803
#46 0x00007f970d0fd93c in QWidgetPrivate::drawWidget (this=0x86aba00, pdev=0x30cd2f0, rgn=..., offset=..., flags=<optimized out>, sharedPainter=0x0, backingStore=0x1ecb380) at kernel/qwidget.cpp:5647
#47 0x00007f970d0fe87f in QWidgetPrivate::paintSiblingsRecursive (this=0x8fb8010, pdev=0x30cd2f0, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1ecb380) at kernel/qwidget.cpp:5803
#48 0x00007f970d0fd93c in QWidgetPrivate::drawWidget (this=0x8fb8010, pdev=0x30cd2f0, rgn=..., offset=..., flags=<optimized out>, sharedPainter=0x0, backingStore=0x1ecb380) at kernel/qwidget.cpp:5647
#49 0x00007f970d0fe87f in QWidgetPrivate::paintSiblingsRecursive (this=0x1e735b0, pdev=0x30cd2f0, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1ecb380) at kernel/qwidget.cpp:5803
#50 0x00007f970d0fd93c in QWidgetPrivate::drawWidget (this=0x1e735b0, pdev=0x30cd2f0, rgn=..., offset=..., flags=<optimized out>, sharedPainter=0x0, backingStore=0x1ecb380) at kernel/qwidget.cpp:5647
#51 0x00007f970d0fe87f in QWidgetPrivate::paintSiblingsRecursive (this=0x1ed1c90, pdev=0x30cd2f0, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1ecb380) at kernel/qwidget.cpp:5803
#52 0x00007f970d0fd93c in QWidgetPrivate::drawWidget (this=0x1ed1c90, pdev=0x30cd2f0, rgn=..., offset=..., flags=<optimized out>, sharedPainter=0x0, backingStore=0x1ecb380) at kernel/qwidget.cpp:5647
#53 0x00007f970d0fe87f in QWidgetPrivate::paintSiblingsRecursive (this=0x1ec9f60, pdev=0x30cd2f0, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1ecb380) at kernel/qwidget.cpp:5803
#54 0x00007f970d0fd93c in QWidgetPrivate::drawWidget (this=0x1ec9f60, pdev=0x30cd2f0, rgn=..., offset=..., flags=<optimized out>, sharedPainter=0x0, backingStore=0x1ecb380) at kernel/qwidget.cpp:5647
#55 0x00007f970d0fe87f in QWidgetPrivate::paintSiblingsRecursive (this=0x1ec82d0, pdev=0x30cd2f0, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1ecb380) at kernel/qwidget.cpp:5803
#56 0x00007f970d0fe607 in QWidgetPrivate::paintSiblingsRecursive (this=0x1ec82d0, pdev=0x30cd2f0, siblings=..., index=6, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1ecb380) at kernel/qwidget.cpp:5790
#57 0x00007f970d0fe607 in QWidgetPrivate::paintSiblingsRecursive (this=0x1ec82d0, pdev=0x30cd2f0, siblings=..., index=19, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1ecb380) at kernel/qwidget.cpp:5790
#58 0x00007f970d0fe607 in QWidgetPrivate::paintSiblingsRecursive (this=0x1ec82d0, pdev=0x30cd2f0, siblings=..., index=45, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1ecb380) at kernel/qwidget.cpp:5790
#59 0x00007f970d0fd93c in QWidgetPrivate::drawWidget (this=0x1ec82d0, pdev=0x30cd2f0, rgn=..., offset=..., flags=<optimized out>, sharedPainter=0x0, backingStore=0x1ecb380) at kernel/qwidget.cpp:5647
#60 0x00007f970d2cef48 in QWidgetBackingStore::sync (this=0x1ecb380) at painting/qbackingstore.cpp:1373
#61 0x00007f970d0f4930 in QWidgetPrivate::syncBackingStore (this=0x1ec82d0) at kernel/qwidget.cpp:1892
#62 0x00007f970d10247c in QWidget::event (this=0x1ed2dd0, event=0x1349e2d0) at kernel/qwidget.cpp:8664
#63 0x00007f970d4dc11b in QMainWindow::event (this=0x1ed2dd0, event=0x1349e2d0) at widgets/qmainwindow.cpp:1478
#64 0x00007f970e896928 in KXmlGuiWindow::event (this=0x1ed2dd0, ev=0x1349e2d0) at ../../kdeui/xmlgui/kxmlguiwindow.cpp:126
#65 0x00007f970d0b17b4 in notify_helper (e=0x1349e2d0, receiver=0x1ed2dd0, this=0x1d3c840) at kernel/qapplication.cpp:4556
#66 QApplicationPrivate::notify_helper (this=0x1d3c840, receiver=0x1ed2dd0, e=0x1349e2d0) at kernel/qapplication.cpp:4528
#67 0x00007f970d0b6583 in QApplication::notify (this=0x7fff2d6e5250, receiver=0x1ed2dd0, e=0x1349e2d0) at kernel/qapplication.cpp:4417
#68 0x00007f970e79a006 in KApplication::notify (this=0x7fff2d6e5250, receiver=0x1ed2dd0, event=0x1349e2d0) at ../../kdeui/kernel/kapplication.cpp:311
#69 0x00007f970dd3032c in QCoreApplication::notifyInternal (this=0x7fff2d6e5250, receiver=0x1ed2dd0, event=0x1349e2d0) at kernel/qcoreapplication.cpp:915
#70 0x00007f970dd3410a in sendEvent (event=0x1349e2d0, receiver=0x1ed2dd0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#71 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x1cff6a0) at kernel/qcoreapplication.cpp:1539
#72 0x00007f970dd5f493 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#73 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:279
#74 0x00007f97063b9d53 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#75 0x00007f97063ba0a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#76 0x00007f97063ba164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#77 0x00007f970dd5f8bf in QEventDispatcherGlib::processEvents (this=0x1d00b60, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#78 0x00007f970d159cde in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#79 0x00007f970dd2ee62 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#80 0x00007f970dd2f0b7 in QEventLoop::exec (this=0x7fff2d6e51e0, flags=...) at kernel/qeventloop.cpp:204
#81 0x00007f970dd34407 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#82 0x00000000004035c9 in main (argc=1, argv=0x7fff2d6e5878) at ../../../kontact/src/main.cpp:219

Possible duplicates by query: bug 310332.

Reported using DrKonqi