Application that crashed: kontact
Version of the application: 4.3.1
KDE Version: 4.3.1 (KDE 4.3.1)
Qt Version: 4.5.2
Operating System: Linux 2.6.28-15-generic x86_64
Distribution: Ubuntu 9.04

What I was doing when the application crashed:
When reading websites in Kontact (in this case: http://www.faz.net/s/Rub501F42F1AA064C4CB17DF1C38AC00196/Doc~E4DF98570DD114AC7AFD38F36D902E131~ATpl~Ecommon~SMed.html and the following pictures) akregator crashes in libkhtml. The crash seems to be more or less random without any consistent pattern.

 -- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
[KCrash Handler]
#5  khtml::BidiContext::deref (this=0x1900000019) at /build/buildd/kde4libs-4.3.1/khtml/rendering/bidi.cpp:206
#6  0x00007f0902514d14 in khtml::RootInlineBox::setLineBreakInfo (this=0x48b23a8, obj=0x0, breakPos=<value optimized out>, status=@0x7fff0ad0d2a0, context=0x0)
    at /build/buildd/kde4libs-4.3.1/khtml/rendering/render_line.cpp:1177
#7  0x00007f0902514dea in khtml::RootInlineBox::childRemoved (this=0x1900000019, box=0x48b2410) at /build/buildd/kde4libs-4.3.1/khtml/rendering/render_line.cpp:1161
#8  0x00007f0902514e64 in khtml::InlineFlowBox::removeFromLine (this=0x48b23a8, child=0x48b2410) at /build/buildd/kde4libs-4.3.1/khtml/rendering/render_line.cpp:226
#9  0x00007f0902515fcd in khtml::InlineBox::detach (this=0x48b2410, renderArena=0x8492050, noRemove=40) at /build/buildd/kde4libs-4.3.1/khtml/rendering/render_line.cpp:81
#10 0x00007f0902513db8 in khtml::InlineFlowBox::deleteLine (this=0x48b23a8, arena=0x8492050) at /build/buildd/kde4libs-4.3.1/khtml/rendering/render_line.cpp:209
#11 0x00007f09024c813a in khtml::RenderContainer::removeChildNode (this=0x48afa38, oldChild=0x48b1220) at /build/buildd/kde4libs-4.3.1/khtml/rendering/render_container.cpp:224
#12 0x00007f09024abf6e in khtml::RenderBlock::removeChild (this=0x48af8a8, oldChild=0x48af970) at /build/buildd/kde4libs-4.3.1/khtml/rendering/render_block.cpp:605
#13 0x00007f09024be76e in khtml::RenderObject::detach (this=0x48af970) at /build/buildd/kde4libs-4.3.1/khtml/rendering/render_object.h:847
#14 0x00007f09024cb262 in khtml::RenderBox::detach (this=0x48af970) at /build/buildd/kde4libs-4.3.1/khtml/rendering/render_box.cpp:224
#15 0x00007f0902407f06 in DOM::NodeImpl::detach (this=0x72fac90) at /build/buildd/kde4libs-4.3.1/khtml/xml/dom_nodeimpl.cpp:975
#16 0x00007f0902408708 in DOM::NodeBaseImpl::detach (this=0x9c83fe0) at /build/buildd/kde4libs-4.3.1/khtml/xml/dom_nodeimpl.cpp:1836
#17 0x00007f0902408708 in DOM::NodeBaseImpl::detach (this=0x8ea70d0) at /build/buildd/kde4libs-4.3.1/khtml/xml/dom_nodeimpl.cpp:1836
#18 0x00007f0902408708 in DOM::NodeBaseImpl::detach (this=0x7370a00) at /build/buildd/kde4libs-4.3.1/khtml/xml/dom_nodeimpl.cpp:1836
#19 0x00007f0902408708 in DOM::NodeBaseImpl::detach (this=0x87d1810) at /build/buildd/kde4libs-4.3.1/khtml/xml/dom_nodeimpl.cpp:1836
#20 0x00007f0902408708 in DOM::NodeBaseImpl::detach (this=0x9f86890) at /build/buildd/kde4libs-4.3.1/khtml/xml/dom_nodeimpl.cpp:1836
#21 0x00007f0902408708 in DOM::NodeBaseImpl::detach (this=0x9c8d960) at /build/buildd/kde4libs-4.3.1/khtml/xml/dom_nodeimpl.cpp:1836
#22 0x00007f0902408708 in DOM::NodeBaseImpl::detach (this=0x9c68760) at /build/buildd/kde4libs-4.3.1/khtml/xml/dom_nodeimpl.cpp:1836
#23 0x00007f0902408708 in DOM::NodeBaseImpl::detach (this=0x9c50bd0) at /build/buildd/kde4libs-4.3.1/khtml/xml/dom_nodeimpl.cpp:1836
#24 0x00007f090240cf1d in DOM::NodeBaseImpl::removeChild (this=0x87bc2c0, oldChild=0x9c50bd0, exceptioncode=<value optimized out>) at /build/buildd/kde4libs-4.3.1/khtml/xml/dom_nodeimpl.cpp:1621
#25 0x00007f090240d001 in DOM::NodeBaseImpl::replaceChild (this=0x87bc2c0, newChild=0x7641810, oldChild=0x9c50bd0, exceptioncode=@0x7fff0ad0d668)
    at /build/buildd/kde4libs-4.3.1/khtml/xml/dom_nodeimpl.cpp:1546
#26 0x00007f09025b3ec0 in DOMNodeProtoFunc::callAsFunction (this=<value optimized out>, exec=0x7fff0ad0e0e0, thisObj=<value optimized out>, args=@0x7fff0ad0e030)
    at /build/buildd/kde4libs-4.3.1/khtml/ecma/kjs_dom.cpp:651
#27 0x00007f09014b67b9 in KJS::JSObject::call (this=0x1900000019, exec=0x0, thisObj=0x28, args=@0x7fff0ad0d2a0) at /build/buildd/kde4libs-4.3.1/kjs/object.cpp:69
#28 0x00007f09014d1831 in KJS::Machine::runBlock (exec=0x7fff0ad0e0e0, codeBlock=<value optimized out>, parentExec=0x7fff0ad0ebd0) at codes.def:1192
#29 0x00007f09014b2d1f in KJS::FunctionImp::callAsFunction (this=0x7f08d750ed80, exec=0x7fff0ad0ebd0, thisObj=<value optimized out>, args=@0x7fff0ad0eb20)
    at /build/buildd/kde4libs-4.3.1/kjs/function.cpp:144
#30 0x00007f09014b67b9 in KJS::JSObject::call (this=0x1900000019, exec=0x0, thisObj=0x28, args=@0x7fff0ad0d2a0) at /build/buildd/kde4libs-4.3.1/kjs/object.cpp:69
#31 0x00007f09014d1831 in KJS::Machine::runBlock (exec=0x7fff0ad0ebd0, codeBlock=<value optimized out>, parentExec=0x7fff0ad0f6c0) at codes.def:1192
#32 0x00007f09014b2d1f in KJS::FunctionImp::callAsFunction (this=0x7f08d7469a00, exec=0x7fff0ad0f6c0, thisObj=<value optimized out>, args=@0x7fff0ad0f610)
    at /build/buildd/kde4libs-4.3.1/kjs/function.cpp:144
#33 0x00007f09014b67b9 in KJS::JSObject::call (this=0x1900000019, exec=0x0, thisObj=0x28, args=@0x7fff0ad0d2a0) at /build/buildd/kde4libs-4.3.1/kjs/object.cpp:69
#34 0x00007f09014d1831 in KJS::Machine::runBlock (exec=0x7fff0ad0f6c0, codeBlock=<value optimized out>, parentExec=0x7fff0ad10280) at codes.def:1192
#35 0x00007f09014b2d1f in KJS::FunctionImp::callAsFunction (this=0x7f08d7467040, exec=0x7fff0ad10280, thisObj=<value optimized out>, args=@0x7fff0ad0f8b0)
    at /build/buildd/kde4libs-4.3.1/kjs/function.cpp:144
#36 0x00007f09014b67b9 in KJS::JSObject::call (this=0x1900000019, exec=0x0, thisObj=0x28, args=@0x7fff0ad0d2a0) at /build/buildd/kde4libs-4.3.1/kjs/object.cpp:69
#37 0x00007f090149953a in KJS::FunctionProtoFunc::callAsFunction (this=<value optimized out>, exec=0x7fff0ad10280, thisObj=0x7f08d7467040, args=@0x1)
    at /build/buildd/kde4libs-4.3.1/kjs/function_object.cpp:123
#38 0x00007f09014b67b9 in KJS::JSObject::call (this=0x1900000019, exec=0x0, thisObj=0x28, args=@0x7fff0ad0d2a0) at /build/buildd/kde4libs-4.3.1/kjs/object.cpp:69
#39 0x00007f09014d1831 in KJS::Machine::runBlock (exec=0x7fff0ad10280, codeBlock=<value optimized out>, parentExec=0x7693d00) at codes.def:1192
#40 0x00007f09014b2d1f in KJS::FunctionImp::callAsFunction (this=0x7f08d751a840, exec=0x7693d00, thisObj=<value optimized out>, args=@0x7341468) at /build/buildd/kde4libs-4.3.1/kjs/function.cpp:144
#41 0x00007f09014b67b9 in KJS::JSObject::call (this=0x1900000019, exec=0x0, thisObj=0x28, args=@0x7fff0ad0d2a0) at /build/buildd/kde4libs-4.3.1/kjs/object.cpp:69
#42 0x00007f09025e4732 in KJS::ScheduledAction::execute (this=0x7341460, window=0x7f08d50e0000) at /build/buildd/kde4libs-4.3.1/khtml/ecma/kjs_window.cpp:2180
#43 0x00007f09025e61d6 in KJS::WindowQObject::timerEvent (this=0x46aa530) at /build/buildd/kde4libs-4.3.1/khtml/ecma/kjs_window.cpp:2356
#44 0x00007f08fd25c263 in QObject::event (this=0x46aa530, e=0x0) at kernel/qobject.cpp:1075
#45 0x00007f08fddccf4d in QApplicationPrivate::notify_helper (this=0x1d355a0, receiver=0x46aa530, e=0x7fff0ad10be0) at kernel/qapplication.cpp:4056
#46 0x00007f08fddd518a in QApplication::notify (this=0x7fff0ad10f30, receiver=0x46aa530, e=0x7fff0ad10be0) at kernel/qapplication.cpp:4021
#47 0x00007f08ff1d1deb in KApplication::notify (this=0x7fff0ad10f30, receiver=0x46aa530, event=0x7fff0ad10be0) at /build/buildd/kde4libs-4.3.1/kdeui/kernel/kapplication.cpp:302
#48 0x00007f08fd24c6ac in QCoreApplication::notifyInternal (this=0x7fff0ad10f30, receiver=0x46aa530, event=0x7fff0ad10be0) at kernel/qcoreapplication.cpp:610
#49 0x00007f08fd279516 in QTimerInfoList::activateTimers (this=0x1d39fb0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#50 0x00007f08fd275b2d in timerSourceDispatch (source=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:165
#51 0x00007f08f699d20a in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#52 0x00007f08f69a08e0 in ?? () from /usr/lib/libglib-2.0.so.0
#53 0x00007f08f69a0a7c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#54 0x00007f08fd275a8f in QEventDispatcherGlib::processEvents (this=0x1d080a0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#55 0x00007f08fde65bdf in QGuiEventDispatcherGlib::processEvents (this=0x1900000019, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#56 0x00007f08fd24af42 in QEventLoop::processEvents (this=<value optimized out>, flags={i = 181472848}) at kernel/qeventloop.cpp:149
#57 0x00007f08fd24b314 in QEventLoop::exec (this=0x7fff0ad10e90, flags={i = 181472928}) at kernel/qeventloop.cpp:201
#58 0x00007f08fd24d5e4 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#59 0x0000000000404945 in _start ()

Reported using DrKonqi