Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.3.4 (KDE 4.3.4)
Qt Version: 4.5.3
Operating System: Linux 2.6.32-trunk-686 i686
Distribution: Debian GNU/Linux testing (squeeze)

What I was doing when the application crashed:
Up to date Squeeze and I can't login without plasma-desktop crashing.

 -- Backtrace:
Application: Plasma Workspace (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb4334710 (LWP 6011))]

Thread 2 (Thread 0xa845eb70 (LWP 6019)):
#0  0xb76f9424 in __kernel_vsyscall ()
#1  0xb46d50a5 in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:122
#2  0xb760382d in __pthread_cond_wait (cond=0xa3bd138, mutex=0xa3bd120) at forward.c:139
#3  0xb5f115c2 in QWaitConditionPrivate::wait (this=0xa3b5278, mutex=0xa3b5274, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  QWaitCondition::wait (this=0xa3b5278, mutex=0xa3b5274, time=4294967295) at thread/qwaitcondition_unix.cpp:159
#5  0xb49a9a9a in QHostInfoAgent::run (this=0xa3b5268) at kernel/qhostinfo.cpp:260
#6  0xb5f105e2 in QThreadPrivate::start (arg=0xa3b5268) at thread/qthread_unix.cpp:188
#7  0xb46d1585 in start_thread (arg=0xa845eb70) at pthread_create.c:300
#8  0xb75f62be in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 1 (Thread 0xb4334710 (LWP 6011)):
[KCrash Handler]
#5  0xb5f62417 in QtPrivate::QStringList_contains (that=0xbf8b9b18, str=..., cs=Qt::CaseSensitive) at tools/qstringlist.cpp:318
#6  0xa84be914 in QStringList::contains (this=0xa1ae1b0, device=...) at /usr/include/qt4/QtCore/qstringlist.h:171
#7  HalPower::brightness (this=0xa1ae1b0, device=...) at ../../../solid/hal/halpower.cpp:395
#8  0xa85e4d04 in Solid::Control::PowerManager::brightness (device=...) at ../../../../libs/solid/control/powermanager.cpp:198
#9  0xa84ad87d in Battery::initExtenderItem (this=0xa22c7d0, item=0xa552928) at ../../../../plasma/applets/battery/battery.cpp:406
#10 0xa84b1412 in Battery::init (this=0xa22c7d0) at ../../../../plasma/applets/battery/battery.cpp:151
#11 0xb7697755 in DesktopCorona::saveDefaultSetup (this=0x9e65690) at ../../../../plasma/shells/desktop/desktopcorona.cpp:287
#12 0xb7698a90 in DesktopCorona::qt_metacall (this=0x9e65690, _c=QMetaObject::InvokeMetaMethod, _id=46, _a=0xbf8ba058) at ./desktopcorona.moc:71
#13 0xb6016303 in QMetaObject::activate (sender=0xa238260, from_signal_index=4, to_signal_index=4, argv=0x0) at kernel/qobject.cpp:3112
#14 0xb6016f42 in QMetaObject::activate (sender=0xa238260, m=0xb60f1d88, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3186
#15 0xb601c007 in QSingleShotTimer::timeout (this=0xa238260) at .moc/release-shared/qtimer.moc:76
#16 0xb601c12c in QSingleShotTimer::timerEvent (this=0xa238260) at kernel/qtimer.cpp:298
#17 0xb601139f in QObject::event (this=0xa238260, e=0xbf8ba4dc) at kernel/qobject.cpp:1074
#18 0xb62aca94 in QApplicationPrivate::notify_helper (this=0x9d8c830, receiver=0xa238260, e=0xbf8ba4dc) at kernel/qapplication.cpp:4065
#19 0xb62b4bee in QApplication::notify (this=0x9d84310, receiver=0xa238260, e=0xbf8ba4dc) at kernel/qapplication.cpp:3605
#20 0xb6f3962d in KApplication::notify (this=0x9d84310, receiver=0xa238260, event=0xbf8ba4dc) at ../../kdeui/kernel/kapplication.cpp:302
#21 0xb60011eb in QCoreApplication::notifyInternal (this=0x9d84310, receiver=0xa238260, event=0xbf8ba4dc) at kernel/qcoreapplication.cpp:610
#22 0xb602fe21 in QCoreApplication::sendEvent (this=0x9d8f0a4) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#23 QTimerInfoList::activateTimers (this=0x9d8f0a4) at kernel/qeventdispatcher_unix.cpp:580
#24 0xb602c317 in timerSourceDispatch (source=0x9d8f500) at kernel/qeventdispatcher_glib.cpp:184
#25 idleTimerSourceDispatch (source=0x9d8f500) at kernel/qeventdispatcher_glib.cpp:231
#26 0xb471cb38 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#27 0xb47203d0 in ?? () from /lib/libglib-2.0.so.0
#28 0xb4720503 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#29 0xb602c041 in QEventDispatcherGlib::processEvents (this=0x9d6ecb8, flags=...) at kernel/qeventdispatcher_glib.cpp:407
#30 0xb634c305 in QGuiEventDispatcherGlib::processEvents (this=0x9d6ecb8, flags=...) at kernel/qguieventdispatcher_glib.cpp:202
#31 0xb5fff83a in QEventLoop::processEvents (this=0xbf8ba750, flags=...) at kernel/qeventloop.cpp:149
#32 0xb5fffc82 in QEventLoop::exec (this=0xbf8ba750, flags=...) at kernel/qeventloop.cpp:201
#33 0xb60020d9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#34 0xb62ac917 in QApplication::exec () at kernel/qapplication.cpp:3525
#35 0xb769e5cd in kdemain (argc=1, argv=0xbf8ba8f4) at ../../../../plasma/shells/desktop/main.cpp:50
#36 0x080485ab in main (argc=1, argv=0xbf8ba8f4) at plasma-desktop_dummy.cpp:3

This bug may be a duplicate of or related to bug 220055

Reported using DrKonqi