Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.3.4 (KDE 4.3.4)
Qt Version: 4.6.0
Operating System: Linux 2.6.32.4-melech x86_64
Distribution: Debian GNU/Linux testing (squeeze)

What I was doing when the application crashed:
Plasma crashed, I believe it happened after changing the monitor setup with xrandr.

 -- Backtrace:
Application: Plasma arbetsyta (kdeinit4), signal: Segmentation fault
The current source language is "auto; currently c".
[Current thread is 1 (Thread 0x7f43f5dd6750 (LWP 5042))]

Thread 4 (Thread 0x7f43d8127910 (LWP 5058)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007f43ebb36396 in WTF::TCMalloc_PageHeap::scavengerThread (this=0x7f43ecb1fec0) at ../JavaScriptCore/wtf/FastMalloc.cpp:2299
#2  0x00007f43ebb363d9 in WTF::TCMalloc_PageHeap::runScavengerThread (context=0x7f43ecb2df8c) at ../JavaScriptCore/wtf/FastMalloc.cpp:1433
#3  0x00007f43f2d0373a in start_thread (arg=<value optimized out>) at pthread_create.c:300
#4  0x00007f43f2fe469d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f43d1565910 (LWP 5096)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007f43f57e4de9 in QWaitConditionPrivate::wait (this=0xe30c40, mutex=0xe30c38, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  QWaitCondition::wait (this=0xe30c40, mutex=0xe30c38, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:159
#3  0x00007f43f1ad6f84 in QHostInfoAgent::run (this=0xe30c20) at kernel/qhostinfo.cpp:252
#4  0x00007f43f57e3ef5 in QThreadPrivate::start (arg=0xe30c20) at thread/qthread_unix.cpp:244
#5  0x00007f43f2d0373a in start_thread (arg=<value optimized out>) at pthread_create.c:300
#6  0x00007f43f2fe469d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()
The current source language is "auto; currently asm".

Thread 2 (Thread 0x7f43e4b1b910 (LWP 7200)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007f43e3bd89b6 in WTF::TCMalloc_PageHeap::scavengerThread (this=0x7f43e3eb8300) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2304
#2  0x00007f43e3bd89f9 in WTF::TCMalloc_PageHeap::runScavengerThread (context=0x7f43e3ec63cc) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1438
#3  0x00007f43f2d0373a in start_thread (arg=<value optimized out>) at pthread_create.c:300
#4  0x00007f43f2fe469d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f43f5dd6750 (LWP 5042)):
[KCrash Handler]
#5  QWidget::mapToParent (this=0x0, pos=...) at kernel/qwidget.cpp:3978
#6  0x00007f43f37bd51b in QWidget::mapTo (this=<value optimized out>, parent=0xee3c80, pos=...) at kernel/qwidget.cpp:3934
#7  0x00007f43d53b3b64 in SystemTray::X11EmbedPainter::performUpdates (this=<value optimized out>) at ../../../../plasma/applets/systemtray/protocols/fdo/x11embedpainter.cpp:128
#8  0x00007f43d53b4198 in SystemTray::X11EmbedPainter::qt_metacall (this=0xff7ad0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff0f06f0a0) at ./x11embedpainter.moc:69
#9  0x00007f43f58eb647 in QMetaObject::activate (sender=0xa388b8, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x1) at kernel/qobject.cpp:3294
#10 0x00007f43f58e7a53 in QObject::event (this=0xa388b8, e=0x7fff0f06ed30) at kernel/qobject.cpp:1224
#11 0x00007f43f377508d in QApplicationPrivate::notify_helper (this=0x696f40, receiver=0xa388b8, e=0x7fff0f06f7e0) at kernel/qapplication.cpp:4242
#12 0x00007f43f377b3bd in QApplication::notify (this=0x680d60, receiver=0xa388b8, e=0x7fff0f06f7e0) at kernel/qapplication.cpp:4125
#13 0x00007f43f4483e06 in KApplication::notify (this=0x680d60, receiver=0xa388b8, event=0x7fff0f06f7e0) at ../../kdeui/kernel/kapplication.cpp:302
#14 0x00007f43f58d7bdc in QCoreApplication::notifyInternal (this=0x680d60, receiver=0xa388b8, event=0x7fff0f06f7e0) at kernel/qcoreapplication.cpp:704
#15 0x00007f43f59053e4 in QCoreApplication::sendEvent (this=0x69a3e0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#16 QTimerInfoList::activateTimers (this=0x69a3e0) at kernel/qeventdispatcher_unix.cpp:603
#17 0x00007f43f59019a8 in timerSourceDispatch (source=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#18 idleTimerSourceDispatch (source=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:231
#19 0x00007f43f224b90e in g_main_dispatch (context=0x699520) at /tmp/buildd/glib2.0-2.22.4/glib/gmain.c:1960
#20 IA__g_main_context_dispatch (context=0x699520) at /tmp/buildd/glib2.0-2.22.4/glib/gmain.c:2513
#21 0x00007f43f224f2c8 in g_main_context_iterate (context=0x699520, block=<value optimized out>, dispatch=<value optimized out>, self=<value optimized out>)
    at /tmp/buildd/glib2.0-2.22.4/glib/gmain.c:2591
#22 0x00007f43f224f3f0 in IA__g_main_context_iteration (context=0x699520, may_block=1) at /tmp/buildd/glib2.0-2.22.4/glib/gmain.c:2654
#23 0x00007f43f590168c in QEventDispatcherGlib::processEvents (this=0x616970, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:407
#24 0x00007f43f382553f in QGuiEventDispatcherGlib::processEvents (this=0x0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#25 0x00007f43f58d64c2 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#26 0x00007f43f58d6894 in QEventLoop::exec (this=0x7fff0f06fa90, flags=...) at kernel/qeventloop.cpp:201
#27 0x00007f43f58d8d46 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#28 0x00007f43e9bb62af in kdemain (argc=<value optimized out>, argv=<value optimized out>) at ../../../../plasma/shells/desktop/main.cpp:50
#29 0x0000000000406e9e in launch (argc=1, _name=<value optimized out>, args=<value optimized out>, cwd=<value optimized out>, envc=0, envs=<value optimized out>, reset_env=false, tty=0x0, 
    avoid_loops=false, startup_id_str=0x40a057 "0") at ../../kinit/kinit.cpp:677
#30 0x0000000000407aad in handle_launcher_request (sock=7, who=<value optimized out>) at ../../kinit/kinit.cpp:1169
#31 0x0000000000407f91 in handle_requests (waitForPid=0) at ../../kinit/kinit.cpp:1362
#32 0x00000000004086c6 in main (argc=2, argv=<value optimized out>, envp=<value optimized out>) at ../../kinit/kinit.cpp:1793
The current source language is "auto; currently c".

This bug may be a duplicate of or related to bug 195206

Reported using DrKonqi