Application: plasma-desktop (0.3)
KDE Platform Version: 4.4.90 (KDE 4.4.90 (KDE 4.5 RC1))
Qt Version: 4.7.0
Operating System: Linux 2.6.32-22-generic i686
Distribution: Ubuntu 10.04 LTS

-- Information about the crash:
- What I was doing when the application crashed:

I executed this little script:
-------------------------
#!/bin/bash
KONQUEROR=$(qdbus | grep -m1 konqueror)
KONQUEROR=${KONQUEROR## }
if [ -z "${KONQUEROR}" ]
then
        echo "No running Konqueror instance found. Please start Konqueror."
        exit 1
fi
dbus-send --session --dest=${KONQUEROR} /KIO/Scheduler org.kde.KIO.Scheduler.reparseSlaveConfiguration
-------------------------

- Unusual behavior I noticed:
Plasma (together with a lot of other applications) just crashed.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma-Arbeitsfläche (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb61eb940 (LWP 3678))]

Thread 2 (Thread 0xad630b70 (LWP 3684)):
#0  0x00ac3344 in __pthread_mutex_unlock_usercnt () from /lib/tls/i686/cmov/libpthread.so.0
#1  0x001eabe6 in pthread_mutex_unlock () from /lib/tls/i686/cmov/libc.so.6
#2  0x0838d794 in IA__g_main_context_check (context=0x8f21320, max_priority=2147483647, fds=0x8f22730, n_fds=1) at /build/buildd/glib2.0-2.24.1/glib/gmain.c:2467
#3  0x0838e0ce in g_main_context_iterate (context=0x8f21320, block=<value optimized out>, dispatch=1, self=0x8f22700) at /build/buildd/glib2.0-2.24.1/glib/gmain.c:2588
#4  0x0838e4b8 in IA__g_main_context_iteration (context=0x8f21320, may_block=1) at /build/buildd/glib2.0-2.24.1/glib/gmain.c:2654
#5  0x0741ef1f in QEventDispatcherGlib::processEvents (this=0x8d64c98, flags=...) at kernel/qeventdispatcher_glib.cpp:414
#6  0x073ef1a9 in QEventLoop::processEvents (this=0xad630280, flags=) at kernel/qeventloop.cpp:149
#7  0x073ef5fa in QEventLoop::exec (this=0xad630280, flags=...) at kernel/qeventloop.cpp:201
#8  0x072ecaee in QThread::exec (this=0x8f0cda0) at thread/qthread.cpp:490
#9  0x073ce2eb in QInotifyFileSystemWatcherEngine::run (this=0x8f0cda0) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x072efdc9 in QThreadPrivate::start (arg=0x8f0cda0) at thread/qthread_unix.cpp:266
#11 0x00abf96e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#12 0x001dda4e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb61eb940 (LWP 3678)):
[KCrash Handler]
#7  QVariant::userType (this=0x86f0748) at kernel/qvariant.cpp:1791
#8  0x008ad991 in QDBusConnectionPrivate::activateSignal (this=0x86f0748, hook=..., msg=...) at qdbusintegrator.cpp:731
#9  0x008af5a9 in QDBusConnectionPrivate::handleSignal (this=0x86f0748, key=..., msg=...) at qdbusintegrator.cpp:1531
#10 0x008af907 in QDBusConnectionPrivate::handleSignal (this=0x86f0748, msg=...) at qdbusintegrator.cpp:1550
#11 0x008babc9 in QDBusConnectionPrivate::handleMessage (this=0x86f0748, amsg=...) at qdbusintegrator.cpp:546
#12 0x008c13ab in qDBusSignalFilter (connection=0x86f1910, message=0x99cbf90, data=0x86f0748) at qdbusintegrator.cpp:532
#13 0x07b67c6d in dbus_connection_dispatch () from /lib/libdbus-1.so.3
#14 0x008ad552 in q_dbus_connection_dispatch (this=0x86f0748) at qdbus_symbols_p.h:115
#15 QDBusConnectionPrivate::doDispatch (this=0x86f0748) at qdbusintegrator.cpp:1084
#16 0x008adddb in QDBusConnectionPrivate::socketRead (this=0x86f0748, fd=5) at qdbusintegrator.cpp:1104
#17 0x008fa0af in QDBusConnectionPrivate::qt_metacall (this=0x86f0748, _c=QMetaObject::InvokeMetaMethod, _id=8, _a=0xbf8583d8) at .moc/release-shared/moc_qdbusconnection_p.cpp:99
#18 0x073f642a in QMetaObject::metacall (object=0x86f0748, cl=9416058, idx=8, argv=0xbf8583d8) at kernel/qmetaobject.cpp:237
#19 0x074091a5 in QMetaObject::activate (sender=0x87c6658, m=0x7522550, local_signal_index=0, argv=0xbf8583d8) at kernel/qobject.cpp:3280
#20 0x0745a763 in QSocketNotifier::activated (this=0x87c6658, _t1=5) at .moc/release-shared/moc_qsocketnotifier.cpp:89
#21 0x0740dec7 in QSocketNotifier::event (this=0x87c6658, e=0xbf858864) at kernel/qsocketnotifier.cpp:317
#22 0x0650e32c in QApplicationPrivate::notify_helper (this=0x86fd918, receiver=0x87c6658, e=0xbf858864) at kernel/qapplication.cpp:4358
#23 0x065156fe in QApplication::notify (this=0x86ec678, receiver=0x87c6658, e=0xbf858864) at kernel/qapplication.cpp:3762
#24 0x010a90da in KApplication::notify (this=0x86ec678, receiver=0x87c6658, event=0xbf858864) at ../../kdeui/kernel/kapplication.cpp:309
#25 0x073f06cb in QCoreApplication::notifyInternal (this=0x86ec678, receiver=0x87c6658, event=0xbf858864) at kernel/qcoreapplication.cpp:732
#26 0x0741f2ba in QCoreApplication::sendEvent (source=0x8700170) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#27 socketNotifierSourceDispatch (source=0x8700170) at kernel/qeventdispatcher_glib.cpp:110
#28 0x0838a5e5 in g_main_dispatch (context=0x86ffa98) at /build/buildd/glib2.0-2.24.1/glib/gmain.c:1960
#29 IA__g_main_context_dispatch (context=0x86ffa98) at /build/buildd/glib2.0-2.24.1/glib/gmain.c:2513
#30 0x0838e2d8 in g_main_context_iterate (context=0x86ffa98, block=<value optimized out>, dispatch=1, self=0x86f6658) at /build/buildd/glib2.0-2.24.1/glib/gmain.c:2591
#31 0x0838e4b8 in IA__g_main_context_iteration (context=0x86ffa98, may_block=1) at /build/buildd/glib2.0-2.24.1/glib/gmain.c:2654
#32 0x0741eee5 in QEventDispatcherGlib::processEvents (this=0x86fd5b8, flags=...) at kernel/qeventdispatcher_glib.cpp:412
#33 0x065cf105 in QGuiEventDispatcherGlib::processEvents (this=0x86fd5b8, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#34 0x073ef1a9 in QEventLoop::processEvents (this=0xbf858b04, flags=) at kernel/qeventloop.cpp:149
#35 0x073ef5fa in QEventLoop::exec (this=0xbf858b04, flags=...) at kernel/qeventloop.cpp:201
#36 0x073f3baf in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#37 0x0650d157 in QApplication::exec () at kernel/qapplication.cpp:3637
#38 0x00b8651e in kdemain (argc=1, argv=0xbf858d14) at ../../../../plasma/desktop/shell/main.cpp:118
#39 0x0804860b in main (argc=1, argv=0xbf858d14) at plasma-desktop_dummy.cpp:3

Possible duplicates by query: bug 230101, bug 226721.

Reported using DrKonqi