Version:           4.1.96 (KDE 4.1.96 (KDE 4.2 RC1)) (using 4.1.96 (KDE 4.1.96 (KDE 4.2 RC1)), Debian packages)
Compiler:          cc
OS:                Linux (i686) release 2.6.26-1-686

I can consistently crash konqueror by visiting the site:

http://shop1auto.rtrk.com.au

firefox renders correctly.

$ konqueror http://shop1auto.rtrk.com.au
konqueror(12831) FixHostUriFilter::filterUri: FixHostUriFilter::filterUri:  KUrl("http://shop1auto.rtrk.com.au")
konqueror(12831) KonqViewManager::setCurrentProfile: "webbrowsing" localPath= "/home/mark/.kde4/share/apps/konqueror/profiles/webbrowsing"
konqueror(12831) KHTMLRun::foundMimeType: finished
KCrash: Application 'konqueror' crashing...
sock_file=/home/mark/.kde4/socket-hp/kdeinit4__0

Application: Konqueror (konqueror), signal SIGABRT
[Current thread is 0 (LWP 12831)]

Thread 2 (Thread 0xb3f66b90 (LWP 12846)):
#0  0xb7ef8424 in __kernel_vsyscall ()
#1  0xb61fa352 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/i686/cmov/libpthread.so.0
#2  0xb7d8c854 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/i686/cmov/libc.so.6
#3  0xb700251c in QWaitCondition::wait (this=0x913e780, mutex=0x913e77c, time=30000) at thread/qwaitcondition_unix.cpp:80
#4  0xb6ff77c6 in QThreadPoolThread::run (this=0x95ca358) at concurrent/qthreadpool.cpp:135
#5  0xb700152e in QThreadPrivate::start (arg=0x95ca358) at thread/qthread_unix.cpp:185
#6  0xb61f64c0 in start_thread () from /lib/i686/cmov/libpthread.so.0
#7  0xb7d7e6de in clone () from /lib/i686/cmov/libc.so.6

Thread 1 (Thread 0xb5edd6c0 (LWP 12831)):
[KCrash Handler]
#6  0xb7ef8424 in __kernel_vsyscall ()
#7  0xb7cc9640 in raise () from /lib/i686/cmov/libc.so.6
#8  0xb7ccb018 in abort () from /lib/i686/cmov/libc.so.6
#9  0xb7d0c653 in malloc_printerr () from /lib/i686/cmov/libc.so.6
#10 0xb7d0e7c5 in free () from /lib/i686/cmov/libc.so.6
#11 0xb27c297c in ~CSSParser (this=0xbf912208) at ../../khtml/css/cssparser.cpp:135
#12 0xb27aa8b4 in DOM::CSSStyleSheetImpl::parseString (this=0x9749470, string=@0xbf9122ac, strict=<value optimized out>) at ../../khtml/css/css_stylesheetimpl.cpp:287
#13 0xb27b10bb in DOM::CSSImportRuleImpl::setStyleSheet (this=0x956e8f0, url=@0x96d8ad0, sheetStr=@0x96d8b0c, charset=@0xbf912324, mimetype=@0xbf91231c) at ../../khtml/css/css_ruleimpl.cpp:156
#14 0xb280683c in khtml::CachedCSSStyleSheet::checkNotify (this=0x96d8ac8) at ../../khtml/misc/loader.cpp:301
#15 0xb2806bb6 in khtml::CachedCSSStyleSheet::data (this=0x96d8ac8, buffer=@0x96b5794, eof=true) at ../../khtml/misc/loader.cpp:291
#16 0xb28010d2 in khtml::Loader::slotFinished (this=0x950eb00, job=0x9749fa0) at ../../khtml/misc/loader.cpp:1402
#17 0xb2807207 in khtml::Loader::qt_metacall (this=0x950eb00, _c=QMetaObject::InvokeMetaMethod, _id=3, _a=0xbf91250c) at ./loader.moc:129
#18 0xb7105be0 in QMetaObject::activate (sender=0x9749fa0, from_signal_index=7, to_signal_index=7, argv=0xbf91250c) at kernel/qobject.cpp:3031
#19 0xb7106962 in QMetaObject::activate (sender=0x9749fa0, m=0xb747c4a8, local_signal_index=3, argv=0xbf91250c) at kernel/qobject.cpp:3101
#20 0xb7321973 in KJob::result (this=0x9749fa0, _t1=0x9749fa0) at ./kjob.moc:186
#21 0xb7321e89 in KJob::emitResult (this=0x9749fa0) at ../../kdecore/jobs/kjob.cpp:294
#22 0xb791bdd5 in KIO::SimpleJob::slotFinished (this=0x9749fa0) at ../../kio/kio/job.cpp:489
#23 0xb7921853 in KIO::TransferJob::slotFinished (this=0x9749fa0) at ../../kio/kio/job.cpp:957
#24 0xb7922a4b in KIO::TransferJob::qt_metacall (this=0x9749fa0, _c=QMetaObject::InvokeMetaMethod, _id=7, _a=0xbf912748) at ./jobclasses.moc:336
#25 0xb7105be0 in QMetaObject::activate (sender=0x94c1578, from_signal_index=8, to_signal_index=8, argv=0x0) at kernel/qobject.cpp:3031
#26 0xb7106962 in QMetaObject::activate (sender=0x94c1578, m=0xb7ad8a64, local_signal_index=4, argv=0x0) at kernel/qobject.cpp:3101
#27 0xb79e7e77 in KIO::SlaveInterface::finished (this=0x94c1578) at ./slaveinterface.moc:163
#28 0xb79ebc47 in KIO::SlaveInterface::dispatch (this=0x94c1578, _cmd=104, rawdata=@0xbf912914) at ../../kio/kio/slaveinterface.cpp:175
#29 0xb79e8357 in KIO::SlaveInterface::dispatch (this=0x94c1578) at ../../kio/kio/slaveinterface.cpp:91
#30 0xb79d975d in KIO::Slave::gotInput (this=0x94c1578) at ../../kio/kio/slave.cpp:322
#31 0xb79da8d3 in KIO::Slave::qt_metacall (this=0x94c1578, _c=QMetaObject::InvokeMetaMethod, _id=2, _a=0xbf912a28) at ./slave.moc:75
#32 0xb7105be0 in QMetaObject::activate (sender=0x9418ba0, from_signal_index=4, to_signal_index=4, argv=0x0) at kernel/qobject.cpp:3031
#33 0xb7106962 in QMetaObject::activate (sender=0x9418ba0, m=0xb7ad5540, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3101
#34 0xb78e2757 in KIO::Connection::readyRead (this=0x9418ba0) at ./connection.moc:84
#35 0xb78e4819 in KIO::ConnectionPrivate::dequeue (this=0x95d2760) at ../../kio/kio/connection.cpp:82
#36 0xb78e49a6 in KIO::Connection::qt_metacall (this=0x9418ba0, _c=QMetaObject::InvokeMetaMethod, _id=1, _a=0x9680f90) at ./connection.moc:72
#37 0xb70fed7b in QMetaCallEvent::placeMetaCall (this=0x974af30, object=0x9418ba0) at kernel/qobject.cpp:529
#38 0xb71008f1 in QObject::event (this=0x9418ba0, e=0x974af30) at kernel/qobject.cpp:1155
#39 0xb67e679c in QApplicationPrivate::notify_helper (this=0x90fd518, receiver=0x9418ba0, e=0x974af30) at kernel/qapplication.cpp:3803
#40 0xb67ee61e in QApplication::notify (this=0xbf9133b8, receiver=0x9418ba0, e=0x974af30) at kernel/qapplication.cpp:3393
#41 0xb76577fd in KApplication::notify (this=0xbf9133b8, receiver=0x9418ba0, event=0x974af30) at ../../kdeui/kernel/kapplication.cpp:307
#42 0xb70f10e1 in QCoreApplication::notifyInternal (this=0xbf9133b8, receiver=0x9418ba0, event=0x974af30) at kernel/qcoreapplication.cpp:587
#43 0xb70f1d65 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x90efed8) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:209
#44 0xb70f1f5d in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1091
#45 0xb711b99f in postEventSourceDispatch (s=0x90ffae0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:214
#46 0xb62421b8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#47 0xb6245853 in ?? () from /usr/lib/libglib-2.0.so.0
#48 0x090ffa58 in ?? ()
#49 0x00000000 in ?? ()

Mark