Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.3.2 (KDE 4.3.2)
Qt Version: 4.5.2
Operating System: Linux 2.6.31-16-generic i686
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
plasma desktop crashes frequently with no apparent reason.

 -- Backtrace:
Application: Plasma 工作区 (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0xb786d700 (LWP 23578))]

Thread 4 (Thread 0xaa92db70 (LWP 23581)):
#0  0x00314422 in __kernel_vsyscall ()
#1  0x0027fe15 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0x0226578d in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0x00364e67 in QWaitConditionPrivate::wait (this=0x92488d8, mutex=0x92488d4, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  QWaitCondition::wait (this=0x92488d8, mutex=0x92488d4, time=4294967295) at thread/qwaitcondition_unix.cpp:159
#5  0x05577922 in QHostInfoAgent::run (this=0x92488c8) at kernel/qhostinfo.cpp:260
#6  0x00363e32 in QThreadPrivate::start (arg=0x92488c8) at thread/qthread_unix.cpp:188
#7  0x0027b80e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#8  0x022587ee in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 3 (Thread 0xa6f6db70 (LWP 23585)):
#0  0x00270e06 in clock_gettime () from /lib/tls/i686/cmov/librt.so.1
#1  0x00480bf3 in QTimerInfoList::getTime (this=0xaa012b04, t=...) at kernel/qeventdispatcher_unix.cpp:339
#2  0x00480de1 in QTimerInfoList::updateCurrentTime (this=0xaa012b04) at kernel/qeventdispatcher_unix.cpp:297
#3  0x0048188c in QTimerInfoList::timerWait (this=0xaa012b04, tm=...) at kernel/qeventdispatcher_unix.cpp:420
#4  0x0047f210 in timerSourcePrepare (source=0xaa012ad0, timeout=0xa6f6d0dc) at kernel/qeventdispatcher_glib.cpp:141
#5  0x00eb3f90 in g_main_context_prepare () from /lib/libglib-2.0.so.0
#6  0x00eb4351 in ?? () from /lib/libglib-2.0.so.0
#7  0x00eb4863 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#8  0x0047f067 in QEventDispatcherGlib::processEvents (this=0x9f37580, flags=...) at kernel/qeventdispatcher_glib.cpp:329
#9  0x00452c79 in QEventLoop::processEvents (this=0xa6f6d2a4, flags=) at kernel/qeventloop.cpp:149
#10 0x004530ca in QEventLoop::exec (this=0xa6f6d2a4, flags=...) at kernel/qeventloop.cpp:201
#11 0x00360b73 in QThread::exec (this=0x9f364f8) at thread/qthread.cpp:487
#12 0x004356ab in QInotifyFileSystemWatcherEngine::run (this=0x9f364f8) at io/qfilesystemwatcher_inotify.cpp:214
#13 0x00363e32 in QThreadPrivate::start (arg=0x9f364f8) at thread/qthread_unix.cpp:188
#14 0x0027b80e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#15 0x022587ee in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 2 (Thread 0xa77d1b70 (LWP 17410)):
#0  0x00314422 in __kernel_vsyscall ()
#1  0x00280142 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0x022657e4 in pthread_cond_timedwait () from /lib/tls/i686/cmov/libc.so.6
#3  0x0036381e in thread_sleep (ti=0x1) at thread/qthread_unix.cpp:297
#4  0x00363973 in QThread::msleep (msecs=50) at thread/qthread_unix.cpp:323
#5  0x0326876b in ?? () from /usr/lib/kde4/plasma_applet_cwp.so
#6  0x00363e32 in QThreadPrivate::start (arg=0xadad6b8) at thread/qthread_unix.cpp:188
#7  0x0027b80e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#8  0x022587ee in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb786d700 (LWP 23578)):
[KCrash Handler]
#6  0x00000011 in ?? ()
#7  0x028f2c96 in ?? () from /usr/lib/libruby1.8.so.1.8
#8  0x028f2d06 in ?? () from /usr/lib/libruby1.8.so.1.8
#9  0x028fdd28 in ?? () from /usr/lib/libruby1.8.so.1.8
#10 0x028feaac in ?? () from /usr/lib/libruby1.8.so.1.8
#11 0x028fec34 in rb_funcall () from /usr/lib/libruby1.8.so.1.8
#12 0x028fa7cb in ?? () from /usr/lib/libruby1.8.so.1.8
#13 0x028f9d48 in ?? () from /usr/lib/libruby1.8.so.1.8
#14 0x028fdad9 in ?? () from /usr/lib/libruby1.8.so.1.8
#15 0x028fddda in ?? () from /usr/lib/libruby1.8.so.1.8
#16 0x028fe6d9 in rb_funcall2 () from /usr/lib/libruby1.8.so.1.8
#17 0x0647a06b in ?? () from /usr/lib/libqtruby4shared.so.2
#18 0x028f4391 in rb_protect () from /usr/lib/libruby1.8.so.1.8
#19 0x0647bcd0 in QtRuby::InvokeSlot::invokeSlot() () from /usr/lib/libqtruby4shared.so.2
#20 0x0647bd8d in QtRuby::InvokeSlot::mainfunction() () from /usr/lib/libqtruby4shared.so.2
#21 0x0647a0fa in QtRuby::SigSlotBase::next() () from /usr/lib/libqtruby4shared.so.2
#22 0x020281ae in ?? () from /usr/lib/ruby/1.8/i486-linux/plasma_applet.so
#23 0x0647a0d9 in QtRuby::SigSlotBase::next() () from /usr/lib/libqtruby4shared.so.2
#24 0x090da23f in ?? () from /usr/lib/ruby/1.8/i486-linux/qtruby4.so
#25 0x028f2898 in ?? () from /usr/lib/libruby1.8.so.1.8
#26 0x028fdc3e in ?? () from /usr/lib/libruby1.8.so.1.8
#27 0x028fddda in ?? () from /usr/lib/libruby1.8.so.1.8
#28 0x028fe6d9 in rb_funcall2 () from /usr/lib/libruby1.8.so.1.8
#29 0x0647a06b in ?? () from /usr/lib/libqtruby4shared.so.2
#30 0x028f4391 in rb_protect () from /usr/lib/libruby1.8.so.1.8
#31 0x0647b630 in QtRuby::VirtualMethodCall::callMethod() () from /usr/lib/libqtruby4shared.so.2
#32 0x0647a13e in QtRuby::MethodCallBase::next() () from /usr/lib/libqtruby4shared.so.2
#33 0x06449e36 in QtRuby::Binding::callMethod(short, void*, Smoke::StackItem*, bool) () from /usr/lib/libqtruby4shared.so.2
#34 0xa523e595 in ?? () from /usr/lib/libsmokeqt.so.2
#35 0x0046a263 in QMetaObject::activate (sender=0xb6670b0, from_signal_index=4, to_signal_index=4, argv=0xbfef7e44) at kernel/qobject.cpp:3113
#36 0x0046aec2 in QMetaObject::activate (sender=0xb6670b0, m=0x5828fe0, local_signal_index=0, argv=0xbfef7e44) at kernel/qobject.cpp:3187
#37 0x057199b9 in Plasma::SignalRelay::dataUpdated (this=0xb6670b0, _t1=..., _t2=...) at ./datacontainer_p.moc:79
#38 0x05719afe in Plasma::SignalRelay::checkQueueing (this=0xb6670b0) at ../../plasma/private/datacontainer_p.cpp:115
#39 0x056ea84c in Plasma::DataContainer::checkForUpdate (this=0x9fb6f30) at ../../plasma/datacontainer.cpp:170
#40 0x056edfd1 in Plasma::DataEngine::timerEvent (this=0x9b72648, event=0xbfef83b0) at ../../plasma/dataengine.cpp:381
#41 0x004643bf in QObject::event (this=0x9b72648, e=0xbfef83b0) at kernel/qobject.cpp:1075
#42 0x010adf54 in QApplicationPrivate::notify_helper (this=0x91e5580, receiver=0x9b72648, e=0xbfef83b0) at kernel/qapplication.cpp:4056
#43 0x010b567c in QApplication::notify (this=0x91df7b8, receiver=0x9b72648, e=0xbfef83b0) at kernel/qapplication.cpp:3603
#44 0x00cb8bfa in KApplication::notify (this=0x91df7b8, receiver=0x9b72648, event=0xbfef83b0) at ../../kdeui/kernel/kapplication.cpp:302
#45 0x004546cb in QCoreApplication::notifyInternal (this=0x91df7b8, receiver=0x9b72648, event=0xbfef83b0) at kernel/qcoreapplication.cpp:610
#46 0x004817ce in QCoreApplication::sendEvent (this=0x91ea134) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#47 QTimerInfoList::activateTimers (this=0x91ea134) at kernel/qeventdispatcher_unix.cpp:572
#48 0x0047f0e0 in timerSourceDispatch (source=0x91ea100) at kernel/qeventdispatcher_glib.cpp:165
#49 0x00eb0e88 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#50 0x00eb4730 in ?? () from /lib/libglib-2.0.so.0
#51 0x00eb4863 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#52 0x0047f02c in QEventDispatcherGlib::processEvents (this=0x91e5310, flags=...) at kernel/qeventdispatcher_glib.cpp:327
#53 0x0114ebe5 in QGuiEventDispatcherGlib::processEvents (this=0x91e5310, flags=...) at kernel/qguieventdispatcher_glib.cpp:202
#54 0x00452c79 in QEventLoop::processEvents (this=0xbfef8674, flags=) at kernel/qeventloop.cpp:149
#55 0x004530ca in QEventLoop::exec (this=0xbfef8674, flags=...) at kernel/qeventloop.cpp:201
#56 0x0045553f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#57 0x010addd7 in QApplication::exec () at kernel/qapplication.cpp:3525
#58 0x0206680d in kdemain (argc=1, argv=0x91c97d8) at ../../../../plasma/shells/desktop/main.cpp:50
#59 0x0804dde1 in launch (argc=<value optimized out>, _name=<value optimized out>, args=<value optimized out>, cwd=0x0, envc=0, envs=0x91c6ae8 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x80511a5 "0") at ../../kinit/kinit.cpp:677
#60 0x0804ea35 in handle_launcher_request (sock=<value optimized out>, who=<value optimized out>) at ../../kinit/kinit.cpp:1169
#61 0x0804eeac in handle_requests (waitForPid=<value optimized out>) at ../../kinit/kinit.cpp:1362
#62 0x0804fbaf in main (argc=2, argv=0xbfef8ed4, envp=0xbfef8ee0) at ../../kinit/kinit.cpp:1793

Reported using DrKonqi