Application: rekonq (2.2.1)
KDE Platform Version: 4.10.2
Qt Version: 4.8.4
Operating System: Linux 3.8.0-19-generic i686
Distribution: Ubuntu 13.04

-- Information about the crash:
start of rekonq after dist-upgrade from kubuntu 12.10 to kubuntu 13.04

The crash can be reproduced every time.

-- Backtrace:
Application: rekonq (rekonq), signal: Illegal instruction
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[KCrash Handler]
#7  0xb6bba773 in WTF::TCMalloc_ThreadCache::InitModule() () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#8  0xb6bbaf08 in WTF::fastMalloc(unsigned int) () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#9  0xb6bdedd6 in WTF::StringImpl::empty() () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#10 0xb6be9c2a in WTF::initializeThreading() () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#11 0xb6ae3a4a in JSC::initializeThreading() () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#12 0xb557e164 in WebCore::ScriptController::initializeThreading() () from /usr/lib/i386-linux-gnu/libQtWebKit.so.4
#13 0xb54bda4d in WebCore::initializeWebCoreQt() () at /build/buildd/qtwebkit-source-2.3.0/Source/WebCore/platform/Timer.h:98
#14 0xb54965ad in QWebSettings::globalSettings() () at /build/buildd/qtwebkit-source-2.3.0/Source/WebCore/page/DragClient.h:68
#15 0xb775036c in ReKonfig::ReKonfig (this=0x9eff300) at /build/buildd/rekonq-2.2.1/obj-i686-linux-gnu/src/rekonq.cpp:158
#16 0xb7752ca4 in ReKonfig::self () at /build/buildd/rekonq-2.2.1/obj-i686-linux-gnu/src/rekonq.cpp:20
#17 0xb7693f71 in recoverOnCrash () at /build/buildd/rekonq-2.2.1/obj-i686-linux-gnu/src/rekonq.h:93
#18 Application::newInstance (this=0xbf8a0008) at /build/buildd/rekonq-2.2.1/src/application.cpp:107
#19 0xb50655d7 in KUniqueApplicationAdaptor::newInstance (this=this@entry=0x9feb6e0, asn_id=..., args=...) at ../../kdeui/kernel/kuniqueapplication.cpp:442
#20 0xb5065686 in qt_static_metacall (_a=0xbf89f60c, _id=0, _o=0x9feb6e0, _c=<optimized out>) at ./kuniqueapplication_p.moc:58
#21 KUniqueApplicationAdaptor::qt_static_metacall (_o=0x9feb6e0, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0xbf89f60c) at ./kuniqueapplication_p.moc:52
#22 0xb506580c in KUniqueApplicationAdaptor::qt_metacall (this=0x9feb6e0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0xbf89f60c) at ./kuniqueapplication_p.moc:102
#23 0xb360a7be in QDBusConnectionPrivate::deliverCall (this=0x9eff6a8, object=0x9feb6e0, msg=..., metaTypes=..., slotIdx=1) at qdbusintegrator.cpp:951
#24 0xb360b03a in QDBusConnectionPrivate::activateCall (this=0x9eff6a8, object=0x9feb6e0, flags=337, msg=...) at qdbusintegrator.cpp:856
#25 0xb360b7e2 in QDBusConnectionPrivate::activateObject (this=0x9eff6a8, node=..., msg=..., pathStartPos=167749377) at qdbusintegrator.cpp:1427
#26 0xb360bbd8 in QDBusActivateObjectEvent::placeMetaCall (this=0x9ffa910) at qdbusintegrator.cpp:1541
#27 0xb37fe48b in QObject::event (this=this@entry=0xbf8a0008, e=e@entry=0x9ffa910) at kernel/qobject.cpp:1194
#28 0xb37e76da in QCoreApplication::event (this=this@entry=0xbf8a0008, e=e@entry=0x9ffa910) at kernel/qcoreapplication.cpp:1758
#29 0xb3d5f3cd in QApplication::event (this=0xbf8a0008, e=0x9ffa910) at kernel/qapplication.cpp:2549
#30 0xb3d56c7c in QApplicationPrivate::notify_helper (this=0x9f132c8, receiver=0xbf8a0008, e=0x9ffa910) at kernel/qapplication.cpp:4567
#31 0xb3d59b94 in QApplication::notify (this=0x9ffa910, receiver=0xbf8a0008, e=0x9ffa910) at kernel/qapplication.cpp:3949
#32 0xb5061d01 in KApplication::notify (this=0xbf8a0008, receiver=0xbf8a0008, event=0x9ffa910) at ../../kdeui/kernel/kapplication.cpp:311
#33 0xb37e290e in QCoreApplication::notifyInternal (this=0xbf8a0008, receiver=0xbf8a0008, event=0x9ffa910) at kernel/qcoreapplication.cpp:946
#34 0xb37e6721 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#35 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x9edd128) at kernel/qcoreapplication.cpp:1570
#36 0xb37e6a8c in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1463
#37 0xb3814aa4 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#38 postEventSourceDispatch (s=0x9f12510) at kernel/qeventdispatcher_glib.cpp:279
#39 0xb2fd53b3 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#40 0xb2fd5750 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#41 0xb2fd5831 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#42 0xb3814c21 in QEventDispatcherGlib::processEvents (this=this@entry=0x9edded8, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#43 0xb3e0da5a in QGuiEventDispatcherGlib::processEvents (this=0x9edded8, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#44 0xb37e13ec in QEventLoop::processEvents (this=this@entry=0xbf89ff38, flags=...) at kernel/qeventloop.cpp:149
#45 0xb37e16e1 in QEventLoop::exec (this=this@entry=0xbf89ff38, flags=...) at kernel/qeventloop.cpp:204
#46 0xb37e73fa in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#47 0xb3d54fc4 in QApplication::exec () at kernel/qapplication.cpp:3828
#48 0xb7754725 in kdemain (argc=1, argv=0xbf8a00f4) at /build/buildd/rekonq-2.2.1/src/main.cpp:240
#49 0x0804854b in main (argc=1, argv=0xbf8a00f4) at /build/buildd/rekonq-2.2.1/obj-i686-linux-gnu/src/rekonq_dummy.cpp:3

Reported using DrKonqi