Application: kwin (4.8.4 (4.8.4))
KDE Platform Version: 4.8.4 (4.8.4)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-30-generic x86_64
Distribution: Ubuntu 12.04.1 LTS

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

Start the pc insert password at login screen (Kdm) When the kde is loaded the crash happen.

The crash can be reproduced some of the time.

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f308e0427c0 (LWP 2545))]

Thread 3 (Thread 0x7f306aaad700 (LWP 2554)):
#0  0x00007f308d85c823 in select () at ../sysdeps/unix/syscall-template.S:82
#1  0x00007f3088f9d366 in qt_safe_select (nfds=27, fdread=0x7f305c000ae8, fdwrite=0x7f305c000d80, fdexcept=0x7f305c001018, orig_timeout=<optimized out>) at kernel/qcore_unix.cpp:83
#2  0x00007f3088fa27b2 in QEventDispatcherUNIXPrivate::doSelect (this=0x7f305c000930, flags=..., timeout=0x0) at kernel/qeventdispatcher_unix.cpp:223
#3  0x00007f3088fa2ca3 in QEventDispatcherUNIX::processEvents (this=0x7f305c000910, flags=...) at kernel/qeventdispatcher_unix.cpp:926
#4  0x00007f3088f6fc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f3088f6fed7 in QEventLoop::exec (this=0x7f306aaaccd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f3088e6efa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f3088f4f9ff in QInotifyFileSystemWatcherEngine::run (this=0x2b71a30) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f3088e71fcb in QThreadPrivate::start (arg=0x2b71a30) at thread/qthread_unix.cpp:298
#9  0x00007f3089ac4b74 in ?? () from /usr/lib/nvidia-current-updates/libGL.so.1
#10 0x00007f3082097e9a in start_thread (arg=0x7f306aaad700) at pthread_create.c:308
#11 0x00007f308d8634bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f3069b3b700 (LWP 2555)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f308a319222 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f308a319259 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f3089ac4b74 in ?? () from /usr/lib/nvidia-current-updates/libGL.so.1
#4  0x00007f3082097e9a in start_thread (arg=0x7f3069b3b700) at pthread_create.c:308
#5  0x00007f308d8634bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f308e0427c0 (LWP 2545)):
[KCrash Handler]
#6  0x00007f3080eb4451 in ?? () from /usr/lib/nvidia-current-updates/libnvidia-glcore.so.295.49
#7  0x00007f3080eb5b94 in ?? () from /usr/lib/nvidia-current-updates/libnvidia-glcore.so.295.49
#8  0x00007f3080fca978 in ?? () from /usr/lib/nvidia-current-updates/libnvidia-glcore.so.295.49
#9  0x00007f3080b5dca4 in ?? () from /usr/lib/nvidia-current-updates/libnvidia-glcore.so.295.49
#10 0x00007f3080b5e1dc in ?? () from /usr/lib/nvidia-current-updates/libnvidia-glcore.so.295.49
#11 0x00007f3089d3ec54 in KWin::GLShader::setUniform (this=<optimized out>, location=5, value=<optimized out>) at ../../../kwin/libkwineffects/kwinglutils.cpp:517
#12 0x00007f308dbee545 in KWin::SceneOpenGL::Window::restoreShaderRenderStates (this=<optimized out>, type=KWin::SceneOpenGL::Window::Content, opacity=<optimized out>, brightness=<optimized out>, saturation=<optimized out>, shader=<optimized out>) at ../../kwin/scene_opengl.cpp:1044
#13 0x00007f308dbf4e10 in KWin::SceneOpenGL::Window::performPaint (this=0x2c02800, mask=1, region=..., data=...) at ../../kwin/scene_opengl.cpp:593
#14 0x00007f308dbdd569 in KWin::Scene::finalDrawWindow (this=<optimized out>, w=<optimized out>, mask=1, region=..., data=...) at ../../kwin/scene.cpp:438
#15 0x00007f308dbfff95 in KWin::EffectsHandlerImpl::drawWindow (this=0x26e4dc0, w=0x2bd2c40, mask=1, region=..., data=...) at ../../kwin/effects.cpp:286
#16 0x00007f306b5a4137 in KWin::BlurEffect::drawWindow (this=<optimized out>, w=0x2bd2c40, mask=1, region=..., data=...) at ../../../kwin/effects/blur/blur.cpp:389
#17 0x00007f308dbfff29 in KWin::EffectsHandlerImpl::drawWindow (this=0x26e4dc0, w=0x2bd2c40, mask=1, region=..., data=...) at ../../kwin/effects.cpp:283
#18 0x00007f308b9c839b in KWin::Effect::drawWindow (this=<optimized out>, w=0x2bd2c40, mask=1, region=..., data=...) at ../../../kwin/libkwineffects/kwineffects.cpp:182
#19 0x00007f308dbfff29 in KWin::EffectsHandlerImpl::drawWindow (this=0x26e4dc0, w=0x2bd2c40, mask=1, region=..., data=...) at ../../kwin/effects.cpp:283
#20 0x00007f308b9c839b in KWin::Effect::drawWindow (this=<optimized out>, w=0x2bd2c40, mask=1, region=..., data=...) at ../../../kwin/libkwineffects/kwineffects.cpp:182
#21 0x00007f308dbfff29 in KWin::EffectsHandlerImpl::drawWindow (this=0x26e4dc0, w=0x2bd2c40, mask=1, region=..., data=...) at ../../kwin/effects.cpp:283
#22 0x00007f308dbdcae5 in KWin::Scene::finalPaintWindow (this=<optimized out>, w=0x2bd2c30, mask=1, region=..., data=...) at ../../kwin/scene.cpp:429
#23 0x00007f308dc00225 in KWin::EffectsHandlerImpl::paintWindow (this=0x26e4dc0, w=0x2bd2c40, mask=1, region=..., data=...) at ../../kwin/effects.cpp:249
#24 0x00007f308b9c849b in KWin::Effect::paintWindow (this=<optimized out>, w=0x2bd2c40, mask=1, region=..., data=...) at ../../../kwin/libkwineffects/kwineffects.cpp:157
#25 0x00007f308dc001b9 in KWin::EffectsHandlerImpl::paintWindow (this=0x26e4dc0, w=0x2bd2c40, mask=1, region=..., data=...) at ../../kwin/effects.cpp:246
#26 0x00007f306b557974 in KWin::FadeEffect::paintWindow (this=<optimized out>, w=0x2bd2c40, mask=1, region=..., data=...) at ../../../kwin/effects/fade/fade.cpp:150
#27 0x00007f308dc001b9 in KWin::EffectsHandlerImpl::paintWindow (this=0x26e4dc0, w=0x2bd2c40, mask=1, region=..., data=...) at ../../kwin/effects.cpp:246
#28 0x00007f306b58dc8b in KWin::TranslucencyEffect::paintWindow (this=<optimized out>, w=0x2bd2c40, mask=1, region=..., data=...) at ../../../kwin/effects/translucency/translucency.cpp:169
#29 0x00007f308dc001b9 in KWin::EffectsHandlerImpl::paintWindow (this=0x26e4dc0, w=0x2bd2c40, mask=1, region=..., data=...) at ../../kwin/effects.cpp:246
#30 0x00007f308dbdd768 in KWin::Scene::paintWindow (this=<optimized out>, w=0x2c02800, mask=1, region=..., quads=...) at ../../kwin/scene.cpp:385
#31 0x00007f308dbde30d in KWin::Scene::paintSimpleScreen (this=0x26e6a60, orig_mask=0, region=<error reading variable: Cannot access memory at address 0xffffffffffffffff>) at ../../kwin/scene.cpp:330
#32 0x00007f308dbdca14 in KWin::Scene::finalPaintScreen (this=0x26e6a60, mask=0, region=..., data=...) at ../../kwin/scene.cpp:198
#33 0x00007f308dc003f7 in KWin::EffectsHandlerImpl::paintScreen (this=0x26e4dc0, mask=0, region=..., data=...) at ../../kwin/effects.cpp:222
#34 0x00007f308b9c8508 in KWin::Effect::paintScreen (this=<optimized out>, mask=0, region=..., data=...) at ../../../kwin/libkwineffects/kwineffects.cpp:142
#35 0x00007f308dc0039b in KWin::EffectsHandlerImpl::paintScreen (this=0x26e4dc0, mask=0, region=..., data=...) at ../../kwin/effects.cpp:219
#36 0x00007f308b9c8508 in KWin::Effect::paintScreen (this=<optimized out>, mask=0, region=..., data=...) at ../../../kwin/libkwineffects/kwineffects.cpp:142
#37 0x00007f308dc0039b in KWin::EffectsHandlerImpl::paintScreen (this=0x26e4dc0, mask=0, region=..., data=...) at ../../kwin/effects.cpp:219
#38 0x00007f308b9c8508 in KWin::Effect::paintScreen (this=<optimized out>, mask=0, region=..., data=...) at ../../../kwin/libkwineffects/kwineffects.cpp:142
#39 0x00007f308dc0039b in KWin::EffectsHandlerImpl::paintScreen (this=0x26e4dc0, mask=0, region=..., data=...) at ../../kwin/effects.cpp:219
#40 0x00007f308dbdfa25 in KWin::Scene::paintScreen (this=0x26e6a60, mask=0x7fff60aeaf48, region=0x7fff60aeb010) at ../../kwin/scene.cpp:156
#41 0x00007f308dbf58ed in KWin::SceneOpenGL::paint (this=0x26e6a60, damage=..., toplevels=...) at ../../kwin/scene_opengl_glx.cpp:459
#42 0x00007f308dbd955c in KWin::Workspace::performCompositing (this=0x252a9b0) at ../../kwin/composite.cpp:412
#43 0x00007f3088f8a179 in QObject::event (this=0x252a9b0, e=<optimized out>) at kernel/qobject.cpp:1157
#44 0x00007f30882f3894 in notify_helper (e=0x7fff60aeb710, receiver=0x252a9b0, this=0x24c37d0) at kernel/qapplication.cpp:4559
#45 QApplicationPrivate::notify_helper (this=0x24c37d0, receiver=0x252a9b0, e=0x7fff60aeb710) at kernel/qapplication.cpp:4531
#46 0x00007f30882f8713 in QApplication::notify (this=0x7fff60aebb30, receiver=0x252a9b0, e=0x7fff60aeb710) at kernel/qapplication.cpp:4420
#47 0x00007f308d33d9e6 in KApplication::notify (this=0x7fff60aebb30, receiver=0x252a9b0, event=0x7fff60aeb710) at ../../kdeui/kernel/kapplication.cpp:311
#48 0x00007f3088f70e9c in QCoreApplication::notifyInternal (this=0x7fff60aebb30, receiver=0x252a9b0, event=0x7fff60aeb710) at kernel/qcoreapplication.cpp:876
#49 0x00007f3088fa21f2 in sendEvent (event=0x7fff60aeb710, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#50 QTimerInfoList::activateTimers (this=0x24c4388) at kernel/qeventdispatcher_unix.cpp:611
#51 0x00007f3088fa2cb4 in QEventDispatcherUNIX::processEvents (this=0x2425ad0, flags=...) at kernel/qeventdispatcher_unix.cpp:930
#52 0x00007f308839cbf8 in QEventDispatcherX11::processEvents (this=0x2425ad0, flags=...) at kernel/qeventdispatcher_x11.cpp:152
#53 0x00007f3088f6fc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#54 0x00007f3088f6fed7 in QEventLoop::exec (this=0x7fff60aeba70, flags=...) at kernel/qeventloop.cpp:204
#55 0x00007f3088f74f67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#56 0x00007f308db8ec36 in kdemain (argc=<optimized out>, argv=<optimized out>) at ../../kwin/main.cpp:541
#57 0x00007f308d79276d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=3, ubp_av=0x7fff60aec258, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff60aec248) at libc-start.c:226
#58 0x0000000000400671 in _start ()

Possible duplicates by query: bug 302078, bug 298965, bug 297968, bug 287843, bug 285737.

Reported using DrKonqi