Application: krunner (0.1)
KDE Platform Version: 4.5.1 (KDE 4.5.1)
Qt Version: 4.7.0
Operating System: Linux 2.6.35-24-generic x86_64
Distribution: Ubuntu 10.10

-- Information about the crash:
- What I was doing when the application crashed:
In this specific case: Clicking a input field in firefox-4.0
Also possible: Saving a pdf document with the acroread command for saving files (firefox, konqueror, ...) (100% chance to crash)
moving two or more mails to a different folder (thunderbird)
using ssh in a konsole window
starting up applications like rssowl
...and many more. xorg error backtracing wasn't successful yet, but I'm working on a valid one

- Unusual behavior I noticed:
as noticed above. Happens since a few days without the install or upgrade of a system component (except dbus 1.3, but happens also on downgrade to former version) or any other system tweak.

The crash can be reproduced every time.

-- Backtrace:
Application: Run Command Interface (krunner), signal: Segmentation fault
[KCrash Handler]
#6  0x00007ffbba2665b0 in KMimeType::mimeType (_name=..., options=KMimeType::ResolveAliases) at ../../kdecore/services/kmimetype.cpp:159
#7  0x00007ffbb83b0b12 in KFileItemPrivate::readUDSEntry (this=0x29ad1a0, _urlIsDirectory=true) at ../../kio/kio/kfileitem.cpp:269
#8  0x00007ffbb83b72ac in KFileItemPrivate (this=0x7fff44802cc0, entry=..., itemOrDirUrl=..., delayedMimeTypes=<value optimized out>, urlIsDirectory=240) at ../../kio/kio/kfileitem.cpp:84
#9  KFileItem::KFileItem (this=0x7fff44802cc0, entry=..., itemOrDirUrl=..., delayedMimeTypes=<value optimized out>, urlIsDirectory=240) at ../../kio/kio/kfileitem.cpp:473
#10 0x00007ffbb839474b in KDirListerCache::slotEntries (this=<value optimized out>, job=<value optimized out>, entries=<value optimized out>) at ../../kio/kio/kdirlister.cpp:1142
#11 0x00007ffbb839fe07 in KDirListerCache::qt_metacall (this=0x27f7440, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff44802f50) at ./kdirlister_p.moc:104
#12 0x00007ffbb9debb27 in QMetaObject::activate (sender=0x27d1680, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x1) at kernel/qobject.cpp:3280
#13 0x00007ffbb836d274 in KIO::ListJob::entries (this=0x7fff44802a50, _t1=0x27d1680, _t2=<value optimized out>) at ./jobclasses.moc:835
#14 0x00007ffbb8379035 in KIO::ListJobPrivate::slotListEntries (this=0x27f8ca0, list=<value optimized out>) at ../../kio/kio/job.cpp:2461
#15 0x00007ffbb83791fa in KIO::ListJob::qt_metacall (this=0x27d1680, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff448032a0) at ./jobclasses.moc:821
#16 0x00007ffbb9debb27 in QMetaObject::activate (sender=0x25a72a0, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x1) at kernel/qobject.cpp:3280
#17 0x00007ffbb84218f5 in KIO::SlaveInterface::listEntries (this=0x7fff44802a50, _t1=<value optimized out>) at ./slaveinterface.moc:185
#18 0x00007ffbb8424bf2 in KIO::SlaveInterface::dispatch (this=0x25a72a0, _cmd=43573928, rawdata=...) at ../../kio/kio/slaveinterface.cpp:193
#19 0x00007ffbb8421cc3 in KIO::SlaveInterface::dispatch (this=0x25a72a0) at ../../kio/kio/slaveinterface.cpp:91
#20 0x00007ffbb8415876 in KIO::Slave::gotInput (this=0x25a72a0) at ../../kio/kio/slave.cpp:344
#21 0x00007ffbb8415a5c in KIO::Slave::qt_metacall (this=0x25a72a0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff448036b0) at ./slave.moc:82
#22 0x00007ffbb9debb27 in QMetaObject::activate (sender=0x24ebbe0, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x1) at kernel/qobject.cpp:3280
#23 0x00007ffbb8341df7 in KIO::ConnectionPrivate::dequeue (this=0x2448bb0) at ../../kio/kio/connection.cpp:82
#24 0x00007ffbb8341f1d in KIO::Connection::qt_metacall (this=0x24ebbe0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x25bf1e0) at ./connection.moc:79
#25 0x00007ffbb9de5bde in QObject::event (this=0x24ebbe0, e=0x7fff44802a50) at kernel/qobject.cpp:1219
#26 0x00007ffbba789fdc in QApplicationPrivate::notify_helper (this=0x240a620, receiver=0x24ebbe0, e=0x2849520) at kernel/qapplication.cpp:4396
#27 0x00007ffbba78faed in QApplication::notify (this=0x2400f60, receiver=0x24ebbe0, e=0x2849520) at kernel/qapplication.cpp:4277
#28 0x00007ffbbc2b9156 in KApplication::notify (this=0x2400f60, receiver=0x24ebbe0, event=0x2849520) at ../../kdeui/kernel/kapplication.cpp:310
#29 0x00007ffbb9dd3cdc in QCoreApplication::notifyInternal (this=0x2400f60, receiver=0x24ebbe0, event=0x2849520) at kernel/qcoreapplication.cpp:732
#30 0x00007ffbb9dd6c22 in sendEvent (receiver=0x0, event_type=<value optimized out>, data=0x23dd560) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#31 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=<value optimized out>, data=0x23dd560) at kernel/qcoreapplication.cpp:1373
#32 0x00007ffbb9e00653 in sendPostedEvents (s=0x2408800) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#33 postEventSourceDispatch (s=0x2408800) at kernel/qeventdispatcher_glib.cpp:277
#34 0x00007ffbb323f342 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#35 0x00007ffbb32432a8 in ?? () from /lib/libglib-2.0.so.0
#36 0x00007ffbb324345c in g_main_context_iteration () from /lib/libglib-2.0.so.0
#37 0x00007ffbb9e00193 in QEventDispatcherGlib::processEvents (this=0x23dd070, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:415
#38 0x00007ffbba83ca4e in QGuiEventDispatcherGlib::processEvents (this=0x7fff44802a50, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#39 0x00007ffbb9dd2a02 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#40 0x00007ffbb9dd2dec in QEventLoop::exec (this=0x7fff44804100, flags=) at kernel/qeventloop.cpp:201
#41 0x00007ffbb9dd6ebb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#42 0x00007ffbbd6265f4 in kdemain (argc=<value optimized out>, argv=<value optimized out>) at ../../krunner/main.cpp:65
#43 0x00007ffbbd297d8e in __libc_start_main (main=<value optimized out>, argc=<value optimized out>, ubp_av=<value optimized out>, init=<value optimized out>, fini=<value optimized out>, rtld_fini=<value optimized out>, stack_end=0x7fff448043c8) at libc-start.c:226
#44 0x0000000000400669 in _start ()

Possible duplicates by query: bug 262829, bug 255698, bug 252224.

Reported using DrKonqi