Application: kwin (4.5.4 (KDE 4.5.4))
KDE Platform Version: 4.5.4 (KDE 4.5.4) (Compiled from sources)
Qt Version: 4.7.1
Operating System: Linux 2.6.36-gentoo-r5 x86_64
Distribution: "Gentoo Base System release 2.0.1-r1"

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

* Switch user from KDE menu
* Log out second user, return to locked session
* Switch user again, from screen lock dialog
* Log out second user again
* Enter password to unlock session

-- Backtrace:
Application: KWin (kwin), signal: Aborted
[Current thread is 1 (Thread 0x7f9348c767a0 (LWP 2331))]

Thread 2 (Thread 0x7f934199b710 (LWP 2374)):
#0  __lll_lock_wait_private () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:97
#1  0x0000003585a79928 in _L_lock_9654 () from /lib/libc.so.6
#2  0x0000003585a77d11 in __libc_free (mem=0x3585d61e60) at malloc.c:3736
#3  0x000000358ee008bb in ?? () from //usr/lib64/opengl/nvidia/lib/libnvidia-tls.so.260.19.29
#4  0x000000358cf857b4 in cleanup (this=<value optimized out>, __in_chrg=<value optimized out>) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:62
#5  ~QScopedPointer (this=<value optimized out>, __in_chrg=<value optimized out>) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:100
#6  QObject::~QObject (this=<value optimized out>, __in_chrg=<value optimized out>) at kernel/qobject.cpp:963
#7  0x000000358cf99fa7 in QEventDispatcherUNIX::~QEventDispatcherUNIX (this=0x3585d61e60, __in_chrg=<value optimized out>) at kernel/qeventdispatcher_unix.cpp:626
#8  0x000000358ce7ad41 in QThreadPrivate::finish (arg=<value optimized out>) at thread/qthread_unix.cpp:321
#9  0x000000358ce7b526 in ~__pthread_cleanup_class (arg=0x358d2a0f60) at /usr/include/pthread.h:545
#10 QThreadPrivate::start (arg=0x358d2a0f60) at thread/qthread_unix.cpp:290
#11 0x000000358ea99ae3 in ?? () from //usr/lib64/opengl/nvidia/lib/libGL.so.1
#12 0x0000003586606c3a in start_thread (arg=<value optimized out>) at pthread_create.c:301
#13 0x0000003585ad1cad in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 1 (Thread 0x7f9348c767a0 (LWP 2331)):
[KCrash Handler]
#6  0x0000003585a32455 in raise (sig=<value optimized out>) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#7  0x0000003585a33870 in abort () at abort.c:92
#8  0x0000003585a6d9bb in __libc_message (do_abort=<value optimized out>, fmt=<value optimized out>) at ../sysdeps/unix/sysv/linux/libc_fatal.c:186
#9  0x0000003585a72f86 in malloc_printerr (action=3, str=0x3585b2cea8 "free(): invalid next size (normal)", ptr=<value optimized out>) at malloc.c:6283
#10 0x0000003585a77d1c in __libc_free (mem=<value optimized out>) at malloc.c:3738
#11 0x000000358ee008bb in ?? () from //usr/lib64/opengl/nvidia/lib/libnvidia-tls.so.260.19.29
#12 0x00000035932bffcc in node_destruct (this=<value optimized out>, data=0x91b) at /usr/include/qt4/QtCore/qlist.h:418
#13 QList<KWin::WindowQuad>::free (this=<value optimized out>, data=0x91b) at /usr/include/qt4/QtCore/qlist.h:742
#14 0x00000035932cccc0 in KWin::SceneOpenGL::Window::performPaint (this=0x286fb70, mask=41, region=) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/scene_opengl.cpp:1541
#15 0x00000035932bcc3e in KWin::Scene::finalDrawWindow (this=<value optimized out>, w=<value optimized out>, mask=41, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/scene.cpp:330
#16 0x00000035932d5375 in KWin::EffectsHandlerImpl::drawWindow (this=<value optimized out>, w=0x27ef860, mask=41, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:232
#17 0x000000359221502b in KWin::Effect::drawWindow (this=<value optimized out>, w=0x27ef860, mask=<value optimized out>, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/lib/kwineffects.cpp:252
#18 0x00000035932d53fe in KWin::EffectsHandlerImpl::drawWindow (this=0x257a040, w=0x27ef860, mask=41, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:228
#19 0x00007f93406e6d76 in KWin::ShadowEffect::drawWindow (this=<value optimized out>, w=0x27ef860, mask=41, region=<value optimized out>, data=...) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects/shadow/shadow.cpp:250
#20 0x00000035932d53fe in KWin::EffectsHandlerImpl::drawWindow (this=0x257a040, w=0x27ef860, mask=41, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:228
#21 0x00007f93406f7274 in KWin::BlurEffect::drawWindow (this=<value optimized out>, w=0x27ef860, mask=<value optimized out>, region=<value optimized out>, data=...) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects/blur/blur.cpp:328
#22 0x00000035932d53fe in KWin::EffectsHandlerImpl::drawWindow (this=0x257a040, w=0x27ef860, mask=41, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:228
#23 0x000000359221502b in KWin::Effect::drawWindow (this=<value optimized out>, w=0x27ef860, mask=<value optimized out>, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/lib/kwineffects.cpp:252
#24 0x00000035932d53fe in KWin::EffectsHandlerImpl::drawWindow (this=0x257a040, w=0x27ef860, mask=41, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:228
#25 0x000000359221502b in KWin::Effect::drawWindow (this=<value optimized out>, w=0x27ef860, mask=<value optimized out>, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/lib/kwineffects.cpp:252
#26 0x00000035932d53fe in KWin::EffectsHandlerImpl::drawWindow (this=0x257a040, w=0x27ef860, mask=41, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:228
#27 0x000000359221502b in KWin::Effect::drawWindow (this=<value optimized out>, w=0x27ef860, mask=<value optimized out>, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/lib/kwineffects.cpp:252
#28 0x00000035932d53fe in KWin::EffectsHandlerImpl::drawWindow (this=0x257a040, w=0x27ef860, mask=41, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:228
#29 0x000000359221502b in KWin::Effect::drawWindow (this=<value optimized out>, w=0x27ef860, mask=<value optimized out>, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/lib/kwineffects.cpp:252
#30 0x00000035932d53fe in KWin::EffectsHandlerImpl::drawWindow (this=0x257a040, w=0x27ef860, mask=41, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:228
#31 0x000000359221502b in KWin::Effect::drawWindow (this=<value optimized out>, w=0x27ef860, mask=<value optimized out>, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/lib/kwineffects.cpp:252
#32 0x00000035932d53fe in KWin::EffectsHandlerImpl::drawWindow (this=0x257a040, w=0x27ef860, mask=41, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:228
#33 0x000000359221502b in KWin::Effect::drawWindow (this=<value optimized out>, w=0x27ef860, mask=<value optimized out>, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/lib/kwineffects.cpp:252
#34 0x00000035932d53fe in KWin::EffectsHandlerImpl::drawWindow (this=0x257a040, w=0x27ef860, mask=41, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:228
#35 0x000000359221502b in KWin::Effect::drawWindow (this=<value optimized out>, w=0x27ef860, mask=<value optimized out>, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/lib/kwineffects.cpp:252
#36 0x00000035932d53fe in KWin::EffectsHandlerImpl::drawWindow (this=0x257a040, w=0x27ef860, mask=41, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:228
#37 0x000000359221502b in KWin::Effect::drawWindow (this=<value optimized out>, w=0x27ef860, mask=<value optimized out>, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/lib/kwineffects.cpp:252
#38 0x00000035932d53fe in KWin::EffectsHandlerImpl::drawWindow (this=0x257a040, w=0x27ef860, mask=41, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:228
#39 0x000000359221502b in KWin::Effect::drawWindow (this=<value optimized out>, w=0x27ef860, mask=<value optimized out>, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/lib/kwineffects.cpp:252
#40 0x00000035932d53fe in KWin::EffectsHandlerImpl::drawWindow (this=0x257a040, w=0x27ef860, mask=41, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:228
#41 0x000000359221502b in KWin::Effect::drawWindow (this=<value optimized out>, w=0x27ef860, mask=<value optimized out>, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/lib/kwineffects.cpp:252
#42 0x00000035932d53fe in KWin::EffectsHandlerImpl::drawWindow (this=0x257a040, w=0x27ef860, mask=41, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:228
#43 0x000000359221502b in KWin::Effect::drawWindow (this=<value optimized out>, w=0x27ef860, mask=<value optimized out>, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/lib/kwineffects.cpp:252
#44 0x00000035932d53fe in KWin::EffectsHandlerImpl::drawWindow (this=0x257a040, w=0x27ef860, mask=41, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:228
#45 0x000000359221502b in KWin::Effect::drawWindow (this=<value optimized out>, w=0x27ef860, mask=<value optimized out>, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/lib/kwineffects.cpp:252
#46 0x00000035932d53fe in KWin::EffectsHandlerImpl::drawWindow (this=0x257a040, w=0x27ef860, mask=41, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:228
#47 0x000000359221502b in KWin::Effect::drawWindow (this=<value optimized out>, w=0x27ef860, mask=<value optimized out>, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/lib/kwineffects.cpp:252
#48 0x00000035932d53fe in KWin::EffectsHandlerImpl::drawWindow (this=0x257a040, w=0x27ef860, mask=41, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:228
#49 0x000000359221502b in KWin::Effect::drawWindow (this=<value optimized out>, w=0x27ef860, mask=<value optimized out>, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/lib/kwineffects.cpp:252
#50 0x00000035932d53fe in KWin::EffectsHandlerImpl::drawWindow (this=0x257a040, w=0x27ef860, mask=41, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:228
#51 0x000000359221502b in KWin::Effect::drawWindow (this=<value optimized out>, w=0x27ef860, mask=<value optimized out>, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/lib/kwineffects.cpp:252
#52 0x00000035932d53fe in KWin::EffectsHandlerImpl::drawWindow (this=0x257a040, w=0x27ef860, mask=41, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:228
#53 0x00000035932bb9ab in KWin::Scene::finalPaintWindow (this=<value optimized out>, w=0x27ef860, mask=<value optimized out>, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/scene.cpp:321
#54 0x00000035932d5475 in KWin::EffectsHandlerImpl::paintWindow (this=<value optimized out>, w=0x27ef860, mask=41, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:203
#55 0x00007f93406c5a01 in KWin::LogoutEffect::paintWindow (this=<value optimized out>, w=0x27ef860, mask=41, region=) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects/logout/logout.cpp:198
#56 0x00000035932d54fe in KWin::EffectsHandlerImpl::paintWindow (this=0x257a040, w=0x27ef860, mask=41, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:199
#57 0x000000359221508b in KWin::Effect::paintWindow (this=<value optimized out>, w=0x27ef860, mask=<value optimized out>, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/lib/kwineffects.cpp:242
#58 0x00000035932d54fe in KWin::EffectsHandlerImpl::paintWindow (this=0x257a040, w=0x27ef860, mask=41, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:199
#59 0x000000359221508b in KWin::Effect::paintWindow (this=<value optimized out>, w=0x27ef860, mask=<value optimized out>, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/lib/kwineffects.cpp:242
#60 0x00000035932d54fe in KWin::EffectsHandlerImpl::paintWindow (this=0x257a040, w=0x27ef860, mask=41, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:199
#61 0x00007f93406cbb8e in KWin::PresentWindowsEffect::paintWindow (this=<value optimized out>, w=0x27ef860, mask=41, region=) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects/presentwindows/presentwindows.cpp:370
#62 0x00000035932d54fe in KWin::EffectsHandlerImpl::paintWindow (this=0x257a040, w=0x27ef860, mask=41, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:199
#63 0x00007f93406f1cf7 in KWin::TaskbarThumbnailEffect::paintWindow (this=0x26f3790, w=0x27ef860, mask=<value optimized out>, region=<value optimized out>, data=...) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects/taskbarthumbnail/taskbarthumbnail.cpp:70
#64 0x00000035932d54fe in KWin::EffectsHandlerImpl::paintWindow (this=0x257a040, w=0x27ef860, mask=41, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:199
#65 0x00007f93406c2abf in KWin::HighlightWindowEffect::paintWindow (this=<value optimized out>, w=0x27ef860, mask=41, region=) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects/highlightwindow/highlightwindow.cpp:104
#66 0x00000035932d54fe in KWin::EffectsHandlerImpl::paintWindow (this=0x257a040, w=0x27ef860, mask=41, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:199
#67 0x00007f93406ba315 in KWin::DialogParentEffect::paintWindow (this=<value optimized out>, w=0x27ef860, mask=41, region=) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects/dialogparent/dialogparent.cpp:70
#68 0x00000035932d54fe in KWin::EffectsHandlerImpl::paintWindow (this=0x257a040, w=0x27ef860, mask=41, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:199
#69 0x00007f93406be260 in KWin::FadeEffect::paintWindow (this=<value optimized out>, w=0x27ef860, mask=<value optimized out>, region=<value optimized out>, data=...) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects/fade/fade.cpp:160
#70 0x00000035932d54fe in KWin::EffectsHandlerImpl::paintWindow (this=0x257a040, w=0x27ef860, mask=41, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:199
#71 0x00007f93406f13cd in KWin::SlidingPopupsEffect::paintWindow (this=<value optimized out>, w=0x27ef860, mask=<value optimized out>, region=<value optimized out>, data=...) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects/slidingpopups/slidingpopups.cpp:127
#72 0x00000035932d54fe in KWin::EffectsHandlerImpl::paintWindow (this=0x257a040, w=0x27ef860, mask=41, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:199
#73 0x00007f93406b39fb in KWin::DesktopGridEffect::paintWindow (this=<value optimized out>, w=0x27ef860, mask=<value optimized out>, region=<value optimized out>, data=...) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects/desktopgrid/desktopgrid.cpp:392
#74 0x00000035932d54fe in KWin::EffectsHandlerImpl::paintWindow (this=0x257a040, w=0x27ef860, mask=41, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:199
#75 0x00007f93406eb673 in KWin::SlideEffect::paintWindow (this=<value optimized out>, w=0x27ef860, mask=41, region=<value optimized out>, data=...) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects/slide/slide.cpp:165
#76 0x00000035932d54fe in KWin::EffectsHandlerImpl::paintWindow (this=0x257a040, w=0x27ef860, mask=41, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:199
#77 0x00007f93406a3274 in KWin::BoxSwitchEffect::paintWindow (this=<value optimized out>, w=0x27ef860, mask=41, region=) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects/boxswitch/boxswitch.cpp:241
#78 0x00000035932d54fe in KWin::EffectsHandlerImpl::paintWindow (this=0x257a040, w=0x27ef860, mask=41, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:199
#79 0x00007f93406c93e7 in KWin::TranslucencyEffect::paintWindow (this=<value optimized out>, w=0x27ef860, mask=41, region=) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects/translucency/translucency.cpp:180
#80 0x00000035932d54fe in KWin::EffectsHandlerImpl::paintWindow (this=0x257a040, w=0x27ef860, mask=41, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:199
#81 0x00007f93406cacdf in KWin::MinimizeAnimationEffect::paintWindow (this=<value optimized out>, w=0x27ef860, mask=41, region=) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects/minimizeanimation/minimizeanimation.cpp:103
#82 0x00000035932d54fe in KWin::EffectsHandlerImpl::paintWindow (this=0x257a040, w=0x27ef860, mask=41, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:199
#83 0x00007f93406fa27d in KWin::CoverSwitchEffect::paintWindow (this=<value optimized out>, w=0x27ef860, mask=41, region=) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects/coverswitch/coverswitch.cpp:500
#84 0x00000035932d54fe in KWin::EffectsHandlerImpl::paintWindow (this=0x257a040, w=0x27ef860, mask=41, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:199
#85 0x00007f93406c4732 in KWin::LoginEffect::paintWindow (this=<value optimized out>, w=0x27ef860, mask=<value optimized out>, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects/login/login.cpp:69
#86 0x00000035932d54fe in KWin::EffectsHandlerImpl::paintWindow (this=0x257a040, w=0x27ef860, mask=41, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:199
#87 0x00007f93406bbe1d in KWin::DimScreenEffect::paintWindow (this=<value optimized out>, w=0x27ef860, mask=41, region=) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects/dimscreen/dimscreen.cpp:88
#88 0x00000035932d54fe in KWin::EffectsHandlerImpl::paintWindow (this=0x257a040, w=0x27ef860, mask=41, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:199
#89 0x000000359221508b in KWin::Effect::paintWindow (this=<value optimized out>, w=0x27ef860, mask=<value optimized out>, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/lib/kwineffects.cpp:242
#90 0x00000035932d54fe in KWin::EffectsHandlerImpl::paintWindow (this=0x257a040, w=0x27ef860, mask=41, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:199
#91 0x00000035932bce2c in KWin::Scene::paintWindow (this=<value optimized out>, w=0x286fb70, mask=41, region=) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/scene.cpp:315
#92 0x00000035932be3a7 in KWin::Scene::paintGenericScreen (this=0x24e2490, orig_mask=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/scene.cpp:213
#93 0x00000035932bba4a in KWin::Scene::finalPaintScreen (this=0x24e2490, mask=<value optimized out>, region=<value optimized out>, data=...) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/scene.cpp:177
#94 0x00000035932d5572 in KWin::EffectsHandlerImpl::paintScreen (this=<value optimized out>, mask=40, region=) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:172
#95 0x00007f93406c5e0f in KWin::LogoutEffect::paintScreen (this=0x271e790, mask=40, region=<value optimized out>, data=...) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects/logout/logout.cpp:207
#96 0x00000035932d55f4 in KWin::EffectsHandlerImpl::paintScreen (this=0x257a040, mask=40, region=) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:168
#97 0x00007f93406e6937 in KWin::ShadowEffect::paintScreen (this=0x25b7280, mask=40, region=) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects/shadow/shadow.cpp:189
#98 0x00000035932d55f4 in KWin::EffectsHandlerImpl::paintScreen (this=0x257a040, mask=40, region=) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:168
#99 0x00007f93406f5b81 in KWin::BlurEffect::paintScreen (this=<value optimized out>, mask=40, region=) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects/blur/blur.cpp:235
#100 0x00000035932d55f4 in KWin::EffectsHandlerImpl::paintScreen (this=0x257a040, mask=8, region=) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:168
#101 0x00007f93406cc2ee in KWin::PresentWindowsEffect::paintScreen (this=0x25dab30, mask=8, region=) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects/presentwindows/presentwindows.cpp:196
#102 0x00000035932d55f4 in KWin::EffectsHandlerImpl::paintScreen (this=0x257a040, mask=8, region=) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:168
#103 0x00000035922150e5 in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/lib/kwineffects.cpp:227
#104 0x00000035932d55f4 in KWin::EffectsHandlerImpl::paintScreen (this=0x257a040, mask=8, region=) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:168
#105 0x00000035922150e5 in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/lib/kwineffects.cpp:227
#106 0x00000035932d55f4 in KWin::EffectsHandlerImpl::paintScreen (this=0x257a040, mask=8, region=) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:168
#107 0x00000035922150e5 in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/lib/kwineffects.cpp:227
#108 0x00000035932d55f4 in KWin::EffectsHandlerImpl::paintScreen (this=0x257a040, mask=8, region=) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:168
#109 0x00000035922150e5 in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/lib/kwineffects.cpp:227
#110 0x00000035932d55f4 in KWin::EffectsHandlerImpl::paintScreen (this=0x257a040, mask=8, region=) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:168
#111 0x00000035922150e5 in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/lib/kwineffects.cpp:227
#112 0x00000035932d55f4 in KWin::EffectsHandlerImpl::paintScreen (this=0x257a040, mask=8, region=) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:168
#113 0x00007f93406af898 in KWin::DesktopGridEffect::paintScreen (this=<value optimized out>, mask=<value optimized out>, region=<value optimized out>, data=...) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects/desktopgrid/desktopgrid.cpp:155
#114 0x00000035932d55f4 in KWin::EffectsHandlerImpl::paintScreen (this=0x257a040, mask=8, region=) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:168
#115 0x00007f93406ebee5 in KWin::SlideEffect::paintScreen (this=<value optimized out>, mask=<value optimized out>, region=<value optimized out>, data=...) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects/slide/slide.cpp:86
#116 0x00000035932d55f4 in KWin::EffectsHandlerImpl::paintScreen (this=0x257a040, mask=8, region=) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:168
#117 0x00007f93406a9f0e in KWin::BoxSwitchEffect::paintScreen (this=0x25d02b0, mask=8, region=) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects/boxswitch/boxswitch.cpp:142
#118 0x00000035932d55f4 in KWin::EffectsHandlerImpl::paintScreen (this=0x257a040, mask=8, region=) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:168
#119 0x00000035922150e5 in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/lib/kwineffects.cpp:227
#120 0x00000035932d55f4 in KWin::EffectsHandlerImpl::paintScreen (this=0x257a040, mask=8, region=) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:168
#121 0x00000035922150e5 in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/lib/kwineffects.cpp:227
#122 0x00000035932d55f4 in KWin::EffectsHandlerImpl::paintScreen (this=0x257a040, mask=8, region=) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:168
#123 0x00007f93406fc758 in KWin::CoverSwitchEffect::paintScreen (this=0x2711570, mask=8, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects/coverswitch/coverswitch.cpp:124
#124 0x00000035932d55f4 in KWin::EffectsHandlerImpl::paintScreen (this=0x257a040, mask=8, region=) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:168
#125 0x00000035922150e5 in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/lib/kwineffects.cpp:227
#126 0x00000035932d55f4 in KWin::EffectsHandlerImpl::paintScreen (this=0x257a040, mask=8, region=) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:168
#127 0x00000035922150e5 in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/lib/kwineffects.cpp:227
#128 0x00000035932d55f4 in KWin::EffectsHandlerImpl::paintScreen (this=0x257a040, mask=8, region=) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:168
#129 0x00007f93406f54f5 in KWin::ZoomEffect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=...) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects/zoom/zoom.cpp:73
#130 0x00000035932d55f4 in KWin::EffectsHandlerImpl::paintScreen (this=0x257a040, mask=8, region=) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/effects.cpp:168
#131 0x00000035932bd055 in KWin::Scene::paintScreen (this=0x24e2490, mask=0x7fff653d05ec, region=0x7fff653d0710) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/scene.cpp:137
#132 0x00000035932cdadf in KWin::SceneOpenGL::paint (this=0x24e2490, damage=<value optimized out>, toplevels=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/scene_opengl.cpp:758
#133 0x00000035932b81b4 in KWin::Workspace::performCompositing (this=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/composite.cpp:454
#134 0x0000003593239082 in KWin::Workspace::qt_metacall (this=0x22a9ef0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff653d08c0) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4_build/kwin/workspace.moc:583
#135 0x000000358cf83e87 in QMetaObject::activate (sender=0x22aa3b8, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0xffffffffffffffff) at kernel/qobject.cpp:3272
#136 0x000000358cf7dc99 in QObject::event (this=0x22aa3b8, e=0x91b) at kernel/qobject.cpp:1175
#137 0x000000358ddca08c in QApplicationPrivate::notify_helper (this=0x22d3e20, receiver=0x22aa3b8, e=0x7fff653d1010) at kernel/qapplication.cpp:4445
#138 0x000000358ddcf50d in QApplication::notify (this=0x7fff653d1410, receiver=0x22aa3b8, e=0x7fff653d1010) at kernel/qapplication.cpp:4324
#139 0x000000359ca4f4a8 in KApplication::notify (this=0x7fff653d1410, receiver=0x22aa3b8, event=0x7fff653d1010) at /var/tmp/portage/kde-base/kdelibs-4.5.4/work/kdelibs-4.5.4/kdeui/kernel/kapplication.cpp:310
#140 0x000000358cf6c22b in QCoreApplication::notifyInternal (this=0x7fff653d1410, receiver=0x22aa3b8, event=0x7fff653d1010) at kernel/qcoreapplication.cpp:732
#141 0x000000358cf9b3fa in sendEvent (this=0x22d4940) at kernel/qcoreapplication.h:215
#142 QTimerInfoList::activateTimers (this=0x22d4940) at kernel/qeventdispatcher_unix.cpp:603
#143 0x000000358cf9b5eb in QEventDispatcherUNIX::processEvents (this=0x22d3a10, flags=) at kernel/qeventdispatcher_unix.cpp:922
#144 0x000000358de7d1bd in QEventDispatcherX11::processEvents (this=0x22d3a10, flags=) at kernel/qeventdispatcher_x11.cpp:152
#145 0x000000358cf6af72 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#146 0x000000358cf6b33d in QEventLoop::exec (this=0x7fff653d1350, flags=) at kernel/qeventloop.cpp:201
#147 0x000000358cf6f3bb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#148 0x000000359325541c in kdemain (argc=<value optimized out>, argv=<value optimized out>) at /var/tmp/portage/kde-base/kwin-4.5.4/work/kwin-4.5.4/kwin/main.cpp:531
#149 0x0000003585a1ed2d in __libc_start_main (main=<value optimized out>, argc=<value optimized out>, ubp_av=<value optimized out>, init=<value optimized out>, fini=<value optimized out>, rtld_fini=<value optimized out>, stack_end=0x7fff653d1a18) at libc-start.c:226
#150 0x00000000004006e9 in _start ()

This bug may be a duplicate of or related to bug 253882.

Possible duplicates by query: bug 259362, bug 257702, bug 257697, bug 255771, bug 255512.

Reported using DrKonqi