Application that crashed: konqueror
Version of the application: 4.2.90 (KDE 4.2.90 (KDE 4.3 Beta2))
KDE Version: 4.2.90 (KDE 4.2.90 (KDE 4.3 Beta2))
Qt Version: 4.5.1
Operating System: Linux 2.6.28-11-generic i686
Distribution: Ubuntu 9.04

What I was doing when the application crashed:
konqueror crashed when i pushed back button

 -- Backtrace:
Application: Konqueror (konqueror), signal: Segmentation fault
[KCrash Handler]
#5  0xb72f02eb in QString::operator== (this=0x9515ea4, other=@0xb74933e8) at tools/qstring.cpp:1910
#6  0xb3c185d0 in KHTMLPart::restoreState (this=0x8ce4760, stream=@0xbf8beaa8) at /usr/include/qt4/QtCore/qstring.h:400
#7  0xb3c4471e in KHTMLPartBrowserExtension::restoreState (this=0x8a783d8, stream=@0xbf8beaa8) at /build/buildd/kde4libs-4.2.90/khtml/khtml_ext.cpp:104
#8  0xb3c1857f in KHTMLPart::restoreState (this=0x887b128, stream=@0xbf8bebcc) at /build/buildd/kde4libs-4.2.90/khtml/khtml_part.cpp:5418
#9  0xb3c4471e in KHTMLPartBrowserExtension::restoreState (this=0x88c0198, stream=@0xbf8bebcc) at /build/buildd/kde4libs-4.2.90/khtml/khtml_ext.cpp:104
#10 0xb7fd7e1c in ?? () from /usr/lib/libkdeinit4_konqueror.so
#11 0xb802b410 in ?? () from /usr/lib/libkdeinit4_konqueror.so
#12 0xb803577f in ?? () from /usr/lib/libkdeinit4_konqueror.so
#13 0xb73b5a58 in QMetaObject::activate (sender=0x9cbe158, from_signal_index=4, to_signal_index=4, argv=0x0) at kernel/qobject.cpp:3120
#14 0xb73b66e2 in QMetaObject::activate (sender=0x9cbe158, m=0xb7491908, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3194
#15 0xb73bae57 in QSingleShotTimer::timeout (this=0x9cbe158) at .moc/release-shared/qtimer.moc:76
#16 0xb73baf7c in QSingleShotTimer::timerEvent (this=0x9cbe158) at kernel/qtimer.cpp:298
#17 0xb73aff0f in QObject::event (this=0x9cbe158, e=0xbf8bf1fc) at kernel/qobject.cpp:1082
#18 0xb69adbcc in QApplicationPrivate::notify_helper (this=0x84adfd8, receiver=0x9cbe158, e=0xbf8bf1fc) at kernel/qapplication.cpp:4057
#19 0xb69b5ede in QApplication::notify (this=0xbf8bf660, receiver=0x9cbe158, e=0xbf8bf1fc) at kernel/qapplication.cpp:3604
#20 0xb794fe8d in KApplication::notify (this=0xbf8bf660, receiver=0x9cbe158, event=0xbf8bf1fc) at /build/buildd/kde4libs-4.2.90/kdeui/kernel/kapplication.cpp:302
#21 0xb739f7ab in QCoreApplication::notifyInternal (this=0xbf8bf660, receiver=0x9cbe158, event=0xbf8bf1fc) at kernel/qcoreapplication.cpp:610
#22 0xb73ceb31 in QTimerInfoList::activateTimers (this=0x84b1134) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#23 0xb73cb280 in timerSourceDispatch (source=0x84b1100) at kernel/qeventdispatcher_glib.cpp:164
#24 0xb6296b88 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#25 0xb629a0eb in ?? () from /usr/lib/libglib-2.0.so.0
#26 0xb629a268 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#27 0xb73cb1d8 in QEventDispatcherGlib::processEvents (this=0x84adfb8, flags={i = -1081347208}) at kernel/qeventdispatcher_glib.cpp:324
#28 0xb6a4f765 in QGuiEventDispatcherGlib::processEvents (this=0x84adfb8, flags={i = -1081347160}) at kernel/qguieventdispatcher_glib.cpp:202
#29 0xb739ddda in QEventLoop::processEvents (this=0xbf8bf420, flags={i = -1081347096}) at kernel/qeventloop.cpp:149
#30 0xb739e21a in QEventLoop::exec (this=0xbf8bf420, flags={i = -1081347032}) at kernel/qeventloop.cpp:200
#31 0xb73a06c9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#32 0xb69ada47 in QApplication::exec () at kernel/qapplication.cpp:3526
#33 0xb8066148 in kdemain () from /usr/lib/libkdeinit4_konqueror.so
#34 0x080486f2 in _start ()

This bug may be a duplicate of or related to bug 198021

Reported using DrKonqi