Application that crashed: dolphin
Version of the application: 1.3
KDE Version: 4.3.4 (KDE 4.3.4)
Qt Version: 4.5.2
Operating System: Linux 2.6.28-13-generic i686
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
When accessing a network icon for a machine on my home LAN, dolphin crashes.

KMenu -> Computer --> Network --> Network (in dolphin) --> <computer-name> --> <computer-name-with-MAC-address> --> CRASH

 -- Backtrace:
Application: Dolphin (dolphin), signal: Segmentation fault
[KCrash Handler]
#6  QBasicAtomicInt::ref (this=0x9029548, j=0x9454628) at /usr/include/qt4/QtCore/qatomic_i386.h:120
#7  QList (this=0x9029548, j=0x9454628) at /usr/include/qt4/QtCore/qlist.h:111
#8  KDirListerCache::slotResult (this=0x9029548, j=0x9454628) at ../../kio/kio/kdirlister.cpp:1119
#9  0xb7e269a7 in KDirListerCache::qt_metacall (this=0x9029548, _c=QMetaObject::InvokeMetaMethod, _id=12, _a=0xbfde6138) at ./kdirlister_p.moc:99
#10 0xb6907263 in QMetaObject::activate (sender=0x9454628, from_signal_index=7, to_signal_index=7, argv=0xbfde6138) at kernel/qobject.cpp:3113
#11 0xb6907ec2 in QMetaObject::activate (sender=0x9454628, m=0x80b7400, local_signal_index=3, argv=0xbfde6138) at kernel/qobject.cpp:3187
#12 0xb74d0353 in KJob::result (this=0x9454628, _t1=0x9454628) at ./kjob.moc:188
#13 0xb74d07d9 in KJob::emitResult (this=0x9454628) at ../../kdecore/jobs/kjob.cpp:304
#14 0xb7df4690 in KIO::SimpleJob::slotFinished (this=0x9454628) at ../../kio/kio/job.cpp:477
#15 0xb7df47fb in KIO::ListJob::slotFinished (this=0x9454628) at ../../kio/kio/job.cpp:2408
#16 0xb7dfb41e in KIO::ListJob::qt_metacall (this=0x9454628, _c=QMetaObject::InvokeMetaMethod, _id=43, _a=0xbfde635c) at ./jobclasses.moc:764
#17 0xb6907263 in QMetaObject::activate (sender=0x9438490, from_signal_index=8, to_signal_index=8, argv=0x0) at kernel/qobject.cpp:3113
#18 0xb6907ec2 in QMetaObject::activate (sender=0x9438490, m=0xb7fa5f64, local_signal_index=4, argv=0x0) at kernel/qobject.cpp:3187
#19 0xb7ebe587 in KIO::SlaveInterface::finished (this=0x9438490) at ./slaveinterface.moc:165
#20 0xb7ec247d in KIO::SlaveInterface::dispatch (this=0x9438490, _cmd=104, rawdata=...) at ../../kio/kio/slaveinterface.cpp:175
#21 0xb7ebea43 in KIO::SlaveInterface::dispatch (this=0x9438490) at ../../kio/kio/slaveinterface.cpp:91
#22 0xb7eb0b1a in KIO::Slave::gotInput (this=0x9438490) at ../../kio/kio/slave.cpp:322
#23 0xb7eb2f13 in KIO::Slave::qt_metacall (this=0x9438490, _c=QMetaObject::InvokeMetaMethod, _id=30, _a=0xbfde663c) at ./slave.moc:76
#24 0xb6907263 in QMetaObject::activate (sender=0x944d7a0, from_signal_index=4, to_signal_index=4, argv=0x0) at kernel/qobject.cpp:3113
#25 0xb6907ec2 in QMetaObject::activate (sender=0x944d7a0, m=0xb7fa28a0, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3187
#26 0xb7dbaf37 in KIO::Connection::readyRead (this=0x944d7a0) at ./connection.moc:86
#27 0xb7dbccfe in KIO::ConnectionPrivate::dequeue (this=0x941ea88) at ../../kio/kio/connection.cpp:82
#28 0xb7dbce2e in KIO::Connection::qt_metacall (this=0x944d7a0, _c=QMetaObject::InvokeMetaMethod, _id=5, _a=0x9452620) at ./connection.moc:73
#29 0xb68fff0b in QMetaCallEvent::placeMetaCall (this=0x944f398, object=0x944d7a0) at kernel/qobject.cpp:477
#30 0xb69015fe in QObject::event (this=0x944d7a0, e=0x944f398) at kernel/qobject.cpp:1111
#31 0xb6b06f54 in QApplicationPrivate::notify_helper (this=0x8f74ea8, receiver=0x944d7a0, e=0x944f398) at kernel/qapplication.cpp:4056
#32 0xb6b0e67c in QApplication::notify (this=0xbfde6edc, receiver=0x944d7a0, e=0x944f398) at kernel/qapplication.cpp:3603
#33 0xb78161aa in KApplication::notify (this=0xbfde6edc, receiver=0x944d7a0, event=0x944f398) at ../../kdeui/kernel/kapplication.cpp:302
#34 0xb68f16cb in QCoreApplication::notifyInternal (this=0xbfde6edc, receiver=0x944d7a0, event=0x944f398) at kernel/qcoreapplication.cpp:610
#35 0xb68f22b2 in QCoreApplication::sendEvent (receiver=0x0, event_type=0, data=0x8f4de48) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#36 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x8f4de48) at kernel/qcoreapplication.cpp:1247
#37 0xb68f247d in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1140
#38 0xb691c3ff in QCoreApplication::sendPostedEvents (s=0x8f6d910) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#39 postEventSourceDispatch (s=0x8f6d910) at kernel/qeventdispatcher_glib.cpp:210
#40 0xb5efee88 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#41 0xb5f02730 in ?? () from /lib/libglib-2.0.so.0
#42 0xb5f02863 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#43 0xb691c02c in QEventDispatcherGlib::processEvents (this=0x8f4da30, flags=...) at kernel/qeventdispatcher_glib.cpp:327
#44 0xb6ba7be5 in QGuiEventDispatcherGlib::processEvents (this=0x8f4da30, flags=...) at kernel/qguieventdispatcher_glib.cpp:202
#45 0xb68efc79 in QEventLoop::processEvents (this=0xbfde6e34, flags=) at kernel/qeventloop.cpp:149
#46 0xb68f00ca in QEventLoop::exec (this=0xbfde6e34, flags=...) at kernel/qeventloop.cpp:201
#47 0xb68f253f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#48 0xb6b06dd7 in QApplication::exec () at kernel/qapplication.cpp:3525
#49 0x0807a745 in _start ()

Reported using DrKonqi