Application: kwin (4.6.00 (4.6.0) "release 6")
KDE Platform Version: 4.6.00 (4.6.0) "release 6"
Qt Version: 4.7.1
Operating System: Linux 2.6.37.1-1.2-desktop x86_64
Distribution: "openSUSE 11.4 (x86_64)"

-- Information about the crash:
- What I was doing when the application crashed:
kwin crashes when closing a fullscreen flash with prezi prezentation
- Unusual behavior I noticed:
sometimes works, sometimes not

The crash can be reproduced some of the time.

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f8e3790c760 (LWP 7034))]

Thread 2 (Thread 0x7f8e1e2b6700 (LWP 7041)):
#0  0x00007f8e331db38c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f8e35fd7044 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x7f8e362f0180) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007f8e35fd7079 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0x7f8e362fe254) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007f8e331d6a3f in start_thread () from /lib64/libpthread.so.0
#4  0x00007f8e3716967d in clone () from /lib64/libc.so.6
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f8e3790c760 (LWP 7034)):
[KCrash Handler]
#6  intel_region_buffer (intel=0x7bfa40, region=0x0, flag=2) at intel_regions.c:514
#7  0x00007f8e1f5112d4 in intelClearWithBlit (ctx=0x7bfa40, mask=2) at intel_blit.c:262
#8  0x00007f8e1f5137da in intelClear (ctx=0x7bfa40, mask=2) at intel_clear.c:177
#9  0x00007f8e374ce625 in KWin::SceneOpenGL::paintBackground (this=<value optimized out>, region=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/scene_opengl.cpp:921
#10 0x00007f8e374c5d96 in KWin::Scene::paintGenericScreen (this=0x7bb280, orig_mask=40) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/scene.cpp:188
#11 0x00007f8e374c2eea in KWin::Scene::finalPaintScreen (this=0x7bb280, mask=40, region=<value optimized out>, data=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/scene.cpp:178
#12 0x00007f8e374e038f in KWin::EffectsHandlerImpl::paintScreen (this=<value optimized out>, mask=40, region=<value optimized out>, data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:173
#13 0x00007f8e1ea22d7b in KWin::StartupFeedbackEffect::paintScreen (this=0x1e93850, mask=40, region=<value optimized out>, data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects/startupfeedback/startupfeedback.cpp:166
#14 0x00007f8e374e041c in KWin::EffectsHandlerImpl::paintScreen (this=0x18f28d0, mask=40, region=<value optimized out>, data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:169
#15 0x00007f8e355c5f7f in KWin::Effect::paintScreen (this=<value optimized out>, mask=40, region=<value optimized out>, data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/lib/kwineffects.cpp:227
#16 0x00007f8e374e041c in KWin::EffectsHandlerImpl::paintScreen (this=0x18f28d0, mask=40, region=<value optimized out>, data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:169
#17 0x00007f8e1e9c9f3f in KWin::LogoutEffect::paintScreen (this=0x1d4e610, mask=40, region=..., data=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects/logout/logout.cpp:207
#18 0x00007f8e374e041c in KWin::EffectsHandlerImpl::paintScreen (this=0x18f28d0, mask=40, region=<value optimized out>, data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:169
#19 0x00007f8e1e9e4b72 in KWin::ShadowEffect::paintScreen (this=0x1a942a0, mask=40, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects/shadow/shadow.cpp:189
#20 0x00007f8e374e041c in KWin::EffectsHandlerImpl::paintScreen (this=0x18f28d0, mask=40, region=<value optimized out>, data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:169
#21 0x00007f8e1e9f74fe in KWin::BlurEffect::paintScreen (this=<value optimized out>, mask=40, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects/blur/blur.cpp:230
#22 0x00007f8e374e041c in KWin::EffectsHandlerImpl::paintScreen (this=0x18f28d0, mask=8, region=<value optimized out>, data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:169
#23 0x00007f8e1e9ce9c2 in KWin::PresentWindowsEffect::paintScreen (this=0x1ef9ae0, mask=8, region=..., data=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects/presentwindows/presentwindows.cpp:205
#24 0x00007f8e374e041c in KWin::EffectsHandlerImpl::paintScreen (this=0x18f28d0, mask=8, region=<value optimized out>, data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:169
#25 0x00007f8e355c5f7f in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/lib/kwineffects.cpp:227
#26 0x00007f8e374e041c in KWin::EffectsHandlerImpl::paintScreen (this=0x18f28d0, mask=8, region=<value optimized out>, data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:169
#27 0x00007f8e355c5f7f in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/lib/kwineffects.cpp:227
#28 0x00007f8e374e041c in KWin::EffectsHandlerImpl::paintScreen (this=0x18f28d0, mask=8, region=<value optimized out>, data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:169
#29 0x00007f8e355c5f7f in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/lib/kwineffects.cpp:227
#30 0x00007f8e374e041c in KWin::EffectsHandlerImpl::paintScreen (this=0x18f28d0, mask=8, region=<value optimized out>, data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:169
#31 0x00007f8e355c5f7f in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/lib/kwineffects.cpp:227
#32 0x00007f8e374e041c in KWin::EffectsHandlerImpl::paintScreen (this=0x18f28d0, mask=8, region=<value optimized out>, data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:169
#33 0x00007f8e1e9b52a3 in KWin::DesktopGridEffect::paintScreen (this=<value optimized out>, mask=8, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects/desktopgrid/desktopgrid.cpp:155
#34 0x00007f8e374e041c in KWin::EffectsHandlerImpl::paintScreen (this=0x18f28d0, mask=8, region=<value optimized out>, data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:169
#35 0x00007f8e1e9eb34d in KWin::SlideEffect::paintScreen (this=<value optimized out>, mask=8, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects/slide/slide.cpp:86
#36 0x00007f8e374e041c in KWin::EffectsHandlerImpl::paintScreen (this=0x18f28d0, mask=8, region=<value optimized out>, data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:169
#37 0x00007f8e1e9ade42 in KWin::BoxSwitchEffect::paintScreen (this=0x1e61670, mask=8, region=..., data=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects/boxswitch/boxswitch.cpp:143
#38 0x00007f8e374e041c in KWin::EffectsHandlerImpl::paintScreen (this=0x18f28d0, mask=8, region=<value optimized out>, data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:169
#39 0x00007f8e355c5f7f in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/lib/kwineffects.cpp:227
#40 0x00007f8e374e041c in KWin::EffectsHandlerImpl::paintScreen (this=0x18f28d0, mask=8, region=<value optimized out>, data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:169
#41 0x00007f8e355c5f7f in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/lib/kwineffects.cpp:227
#42 0x00007f8e374e041c in KWin::EffectsHandlerImpl::paintScreen (this=0x18f28d0, mask=8, region=<value optimized out>, data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:169
#43 0x00007f8e355c5f7f in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/lib/kwineffects.cpp:227
#44 0x00007f8e374e041c in KWin::EffectsHandlerImpl::paintScreen (this=0x18f28d0, mask=8, region=<value optimized out>, data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:169
#45 0x00007f8e355c5f7f in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/lib/kwineffects.cpp:227
#46 0x00007f8e374e041c in KWin::EffectsHandlerImpl::paintScreen (this=0x18f28d0, mask=8, region=<value optimized out>, data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:169
#47 0x00007f8e355c5f7f in KWin::Effect::paintScreen (this=<value optimized out>, mask=8, region=<value optimized out>, data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/lib/kwineffects.cpp:227
#48 0x00007f8e374e041c in KWin::EffectsHandlerImpl::paintScreen (this=0x18f28d0, mask=8, region=<value optimized out>, data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:169
#49 0x00007f8e1e9f4b7f in KWin::ZoomEffect::paintScreen (this=0x1e587c0, mask=8, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects/zoom/zoom.cpp:341
#50 0x00007f8e374e041c in KWin::EffectsHandlerImpl::paintScreen (this=0x18f28d0, mask=8, region=<value optimized out>, data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:169
#51 0x00007f8e374c3fa5 in KWin::Scene::paintScreen (this=0x7bb280, mask=0x7fff5d62a6fc, region=0x7fff5d62a7f0) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/scene.cpp:137
#52 0x00007f8e374d84e9 in KWin::SceneOpenGL::paint (this=0x7bb280, damage=..., toplevels=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/scene_opengl.cpp:772
#53 0x00007f8e374c06c7 in KWin::Workspace::performCompositing (this=0x79a7f0) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/composite.cpp:448
#54 0x00007f8e33562799 in QObject::event (this=0x79a7f0, e=<value optimized out>) at kernel/qobject.cpp:1175
#55 0x00007f8e326fdd14 in QApplicationPrivate::notify_helper (this=0x635970, receiver=0x79a7f0, e=0x7fff5d62b030) at kernel/qapplication.cpp:4445
#56 0x00007f8e3270622a in QApplication::notify (this=<value optimized out>, receiver=0x79a7f0, e=0x7fff5d62b030) at kernel/qapplication.cpp:4324
#57 0x00007f8e36be19e6 in KApplication::notify (this=0x7fff5d62b510, receiver=0x79a7f0, event=0x7fff5d62b030) at /usr/src/debug/kdelibs-4.6.0/kdeui/kernel/kapplication.cpp:311
#58 0x00007f8e3354ebfc in QCoreApplication::notifyInternal (this=0x7fff5d62b510, receiver=0x79a7f0, event=0x7fff5d62b030) at kernel/qcoreapplication.cpp:732
#59 0x00007f8e3357c4d8 in sendEvent (this=0x636380) at kernel/qcoreapplication.h:215
#60 QTimerInfoList::activateTimers (this=0x636380) at kernel/qeventdispatcher_unix.cpp:618
#61 0x00007f8e3357cbe0 in QEventDispatcherUNIX::processEvents (this=0x612380, flags=...) at kernel/qeventdispatcher_unix.cpp:937
#62 0x00007f8e327a3bac in QEventDispatcherX11::processEvents (this=0x612380, flags=...) at kernel/qeventdispatcher_x11.cpp:152
#63 0x00007f8e3354e052 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#64 0x00007f8e3354e265 in QEventLoop::exec (this=0x7fff5d62b400, flags=...) at kernel/qeventloop.cpp:201
#65 0x00007f8e335526ab in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#66 0x00007f8e3745ec8a in kdemain (argc=<value optimized out>, argv=0x7fff5d62b570) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/main.cpp:542
#67 0x00007f8e370b4bfd in __libc_start_main () from /lib64/libc.so.6
#68 0x0000000000400699 in _start () at ../sysdeps/x86_64/elf/start.S:113

This bug may be a duplicate of or related to bug 252817.

Possible duplicates by query: bug 269889, bug 269562, bug 269314, bug 268394, bug 267939.

Reported using DrKonqi