Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.3.00 (KDE 4.3.0)
Qt Version: 4.5.2
Operating System: Linux 2.6.30-1-amd64 x86_64
Distribution: Debian GNU/Linux testing (squeeze)

What I was doing when the application crashed:
closing magnifier widget and then moving kdeublog widget

 -- Backtrace:
Application: Área de trabajo de Plasma (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fe138e5c760 (LWP 3775))]

Thread 3 (Thread 0x7fe118b73950 (LWP 3788)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007fe1389993e9 in QWaitConditionPrivate::wait (this=0x1f62f50, mutex=0x1f62f48, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  QWaitCondition::wait (this=0x1f62f50, mutex=0x1f62f48, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:159
#3  0x00007fe134d99fc4 in QHostInfoAgent::run (this=0x1f62f30) at kernel/qhostinfo.cpp:260
#4  0x00007fe1389983f5 in QThreadPrivate::start (arg=0x1f62f30) at thread/qthread_unix.cpp:188
#5  0x00007fe1356dbf9a in start_thread (arg=<value optimized out>) at pthread_create.c:300
#6  0x00007fe1362a256d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fe111334950 (LWP 9365)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:217
#1  0x00007fe1389993c7 in QWaitConditionPrivate::wait (this=0x1eb2f18, mutex=0x1eb2f10, time=30000) at thread/qwaitcondition_unix.cpp:85
#2  QWaitCondition::wait (this=0x1eb2f18, mutex=0x1eb2f10, time=30000) at thread/qwaitcondition_unix.cpp:159
#3  0x00007fe13898f221 in QThreadPoolThread::run (this=0x2e6f030) at concurrent/qthreadpool.cpp:140
#4  0x00007fe1389983f5 in QThreadPrivate::start (arg=0x2e6f030) at thread/qthread_unix.cpp:188
#5  0x00007fe1356dbf9a in start_thread (arg=<value optimized out>) at pthread_create.c:300
#6  0x00007fe1362a256d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fe138e5c760 (LWP 3775)):
[KCrash Handler]
#5  0x00007fe136a4f1db in QWidget::testAttribute_helper (this=0x41, attribute=Qt::WA_RightToLeft) at kernel/qwidget.cpp:9976
#6  0x00007fe136a543de in QWidget::testAttribute (this=0x41) at ../../include/QtGui/../../src/gui/kernel/qwidget.h:997
#7  QWidget::layoutDirection (this=0x41) at kernel/qwidget.cpp:4547
#8  0x00007fe136fdc792 in QWidget::isRightToLeft (this=0x342d410) at ../../include/QtGui/../../src/gui/kernel/qwidget.h:404
#9  QGraphicsViewPrivate::updateScroll (this=0x342d410) at graphicsview/qgraphicsview.cpp:542
#10 0x00007fe136fdc8b2 in QGraphicsViewPrivate::horizontalScroll (this=0x342d410) at graphicsview/qgraphicsview.cpp:518
#11 0x00007fe136fdc9b3 in QGraphicsView::mapFromScene (this=<value optimized out>, point=...) at graphicsview/qgraphicsview.cpp:2520
#12 0x00007fe1306672ba in ?? () from /usr/lib/libplasma.so.3
#13 0x00007fe136fa32cd in QGraphicsItem::sceneEvent (this=0x19fb750, event=0x38) at graphicsview/qgraphicsitem.cpp:5022
#14 0x00007fe136fc96e6 in QGraphicsScenePrivate::sendMouseEvent (this=0x1766950, mouseEvent=0x7fff02f5dc20) at graphicsview/qgraphicsscene.cpp:1230
#15 0x00007fe136fd4d78 in QGraphicsScenePrivate::mousePressEventHandler (this=0x1766950, mouseEvent=0x7fff02f5dc20) at graphicsview/qgraphicsscene.cpp:1319
#16 0x00007fe136fd5860 in QGraphicsScene::event (this=0x173cc90, event=0x7fff02f5dc20) at graphicsview/qgraphicsscene.cpp:3805
#17 0x00007fe136a0c7ad in QApplicationPrivate::notify_helper (this=0x16d4960, receiver=0x173cc90, e=0x7fff02f5dc20) at kernel/qapplication.cpp:4056
#18 0x00007fe136a1480a in QApplication::notify (this=0x16cbb30, receiver=0x173cc90, e=0x7fff02f5dc20) at kernel/qapplication.cpp:4021
#19 0x00007fe137665b2b in KApplication::notify (this=0x16cbb30, receiver=0x173cc90, event=0x7fff02f5dc20) at ../../kdeui/kernel/kapplication.cpp:302
#20 0x00007fe138a7e49c in QCoreApplication::notifyInternal (this=0x16cbb30, receiver=0x173cc90, event=0x7fff02f5dc20) at kernel/qcoreapplication.cpp:610
#21 0x00007fe136fe15dd in QCoreApplication::sendEvent (this=0x2392890, event=0x7fff02f5e610) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#22 QGraphicsView::mousePressEvent (this=0x2392890, event=0x7fff02f5e610) at graphicsview/qgraphicsview.cpp:3212
#23 0x00007fe136a5ccc6 in QWidget::event (this=0x2392890, event=0x7fff02f5e610) at kernel/qwidget.cpp:7545
#24 0x00007fe136dc5c7b in QFrame::event (this=0x2392890, e=0x7fff02f5e610) at widgets/qframe.cpp:559
#25 0x00007fe136fe619b in QGraphicsView::viewportEvent (this=0x2392890, event=0x7fff02f5e610) at graphicsview/qgraphicsview.cpp:2919
#26 0x00007fe138a7d7b8 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<value optimized out>, receiver=0x23927c0, event=0x7fff02f5e610) at kernel/qcoreapplication.cpp:726
#27 0x00007fe136a0c77c in QApplicationPrivate::notify_helper (this=0x16d4960, receiver=0x23927c0, e=0x7fff02f5e610) at kernel/qapplication.cpp:4052
#28 0x00007fe136a14f5a in QApplication::notify (this=<value optimized out>, receiver=0x23927c0, e=0x7fff02f5e610) at kernel/qapplication.cpp:3758
#29 0x00007fe137665b2b in KApplication::notify (this=0x16cbb30, receiver=0x23927c0, event=0x7fff02f5e610) at ../../kdeui/kernel/kapplication.cpp:302
#30 0x00007fe138a7e49c in QCoreApplication::notifyInternal (this=0x16cbb30, receiver=0x23927c0, event=0x7fff02f5e610) at kernel/qcoreapplication.cpp:610
#31 0x00007fe136a14208 in QCoreApplication::sendSpontaneousEvent (receiver=0x23927c0, event=0x7fff02f5e610, alienWidget=0x23927c0, nativeWidget=0x2392890, buttonDown=<value optimized out>, 
    lastMouseReceiver=...) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216
#32 QApplicationPrivate::sendMouseEvent (receiver=0x23927c0, event=0x7fff02f5e610, alienWidget=0x23927c0, nativeWidget=0x2392890, buttonDown=<value optimized out>, lastMouseReceiver=...)
    at kernel/qapplication.cpp:2924
#33 0x00007fe136a7cd99 in QETWidget::translateMouseEvent (this=0x2392890, event=<value optimized out>) at kernel/qapplication_x11.cpp:4409
#34 0x00007fe136a7bb4f in QApplication::x11ProcessEvent (this=0x16cbb30, event=0x7fff02f5ffe0) at kernel/qapplication_x11.cpp:3550
#35 0x00007fe136aa3e3c in x11EventSourceDispatch (s=0x16d82e0, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#36 0x00007fe1359297aa in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#37 0x00007fe13592cdf8 in ?? () from /usr/lib/libglib-2.0.so.0
#38 0x00007fe13592cfac in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#39 0x00007fe138aa6b7f in QEventDispatcherGlib::processEvents (this=0x16d4250, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#40 0x00007fe136aa35ef in QGuiEventDispatcherGlib::processEvents (this=0x41, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#41 0x00007fe138a7cd62 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#42 0x00007fe138a7d134 in QEventLoop::exec (this=0x7fff02f60310, flags=...) at kernel/qeventloop.cpp:201
#43 0x00007fe138a7f3a4 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#44 0x00007fe12ce321bb in kdemain (argc=1, argv=0x16465d0) at ../../../../plasma/shells/desktop/main.cpp:50
#45 0x0000000000407264 in launch (argc=1, _name=0x168ddc8 "/usr/bin/plasma-desktop", args=<value optimized out>, cwd=0x0, envc=0, envs=0x168dde8 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x40a0ff "0") at ../../kinit/kinit.cpp:676
#46 0x0000000000407a28 in handle_launcher_request (sock=8, who=<value optimized out>) at ../../kinit/kinit.cpp:1168
#47 0x0000000000407fae in handle_requests (waitForPid=0) at ../../kinit/kinit.cpp:1361
#48 0x000000000040863b in main (argc=2, argv=0x7fff02f61188, envp=0x7fff02f611a0) at ../../kinit/kinit.cpp:1788

Reported using DrKonqi