245469 2010-07-22 20:04:31 +0000 kwin crashes with high cpu/IO 2010-07-22 20:16:00 +0000 1 1 4 Plasma kwin general unspecified Ubuntu Linux RESOLVED DUPLICATE 244813 NOR crash --- 0 paulo.miguel.dias kwin-bugs-null 0 oldest_to_newest 993115 0 paulo.miguel.dias 2010-07-22 20:04:31 +0000 Application: kwin (4.4.92 (KDE 4.4.92 (KDE 4.5 RC2))) KDE Platform Version: 4.4.92 (KDE 4.4.92 (KDE 4.5 RC2)) Qt Version: 4.7.0 Operating System: Linux 2.6.34-020634-generic x86_64 Distribution: Ubuntu 10.04.1 LTS -- Information about the crash: - What I was doing when the application crashed: Aparently, during HIGH I/O , kwin trips over himself, and crashes. i was compiling amarok git in my i7 (4 cores, dual thread), and i was using parallel compiling with all the 8 cores at 100%, when i went to activate the kwin composite, show all desktops, it crashed since the northbridge was already at 100%. maybe a check for this kinda locks will prevent this type of behaviour? -- Backtrace: Application: KWin (kwin), signal: Segmentation fault [KCrash Handler] #6 0x00007f103b0129ca in KWin::DesktopGridEffect::finish (this=0x2451c40) at ../../../kwin/effects/desktopgrid/desktopgrid.cpp:1322 #7 0x00007f103b015531 in KWin::DesktopGridEffect::prePaintScreen (this=0x2451c40, data=<value optimized out>, time=141) at ../../../kwin/effects/desktopgrid/desktopgrid.cpp:146 #8 0x00007f105454004b in KWin::EffectsHandlerImpl::prePaintScreen (this=0x27ae840, data=..., time=141) at ../../kwin/effects.cpp:158 #9 0x00007f105454004b in KWin::EffectsHandlerImpl::prePaintScreen (this=0x27ae840, data=..., time=141) at ../../kwin/effects.cpp:158 #10 0x00007f105454004b in KWin::EffectsHandlerImpl::prePaintScreen (this=0x27ae840, data=..., time=141) at ../../kwin/effects.cpp:158 #11 0x00007f105454004b in KWin::EffectsHandlerImpl::prePaintScreen (this=0x27ae840, data=..., time=141) at ../../kwin/effects.cpp:158 #12 0x00007f105454004b in KWin::EffectsHandlerImpl::prePaintScreen (this=0x27ae840, data=..., time=141) at ../../kwin/effects.cpp:158 #13 0x00007f105454004b in KWin::EffectsHandlerImpl::prePaintScreen (this=0x27ae840, data=..., time=141) at ../../kwin/effects.cpp:158 #14 0x00007f105454004b in KWin::EffectsHandlerImpl::prePaintScreen (this=0x27ae840, data=..., time=141) at ../../kwin/effects.cpp:158 #15 0x00007f105454004b in KWin::EffectsHandlerImpl::prePaintScreen (this=0x27ae840, data=..., time=141) at ../../kwin/effects.cpp:158 #16 0x00007f103b0263f4 in KWin::LoginEffect::prePaintScreen (this=0x2283ce0, data=..., time=5) at ../../../kwin/effects/login/login.cpp:52 #17 0x00007f105454004b in KWin::EffectsHandlerImpl::prePaintScreen (this=0x27ae840, data=..., time=141) at ../../kwin/effects.cpp:158 #18 0x00007f105454004b in KWin::EffectsHandlerImpl::prePaintScreen (this=0x27ae840, data=..., time=141) at ../../kwin/effects.cpp:158 #19 0x00007f105454004b in KWin::EffectsHandlerImpl::prePaintScreen (this=0x27ae840, data=..., time=141) at ../../kwin/effects.cpp:158 #20 0x00007f105452777a in KWin::Scene::paintScreen (this=0x2277120, mask=0x7fff3af5d42c, region=0x7fff3af5d550) at ../../kwin/scene.cpp:116 #21 0x00007f1054538a80 in KWin::SceneOpenGL::paint (this=0x2277120, damage=<value optimized out>, toplevels=<value optimized out>) at ../../kwin/scene_opengl.cpp:748 #22 0x00007f10545228d7 in KWin::Workspace::performCompositing (this=<value optimized out>) at ../../kwin/composite.cpp:455 #23 0x00007f10544a3e9d in KWin::Workspace::qt_metacall (this=0x2219640, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff3af5d700) at ./workspace.moc:583 #24 0x00007f10509d9507 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4 #25 0x00007f10509d32d9 in QObject::event(QEvent*) () from /usr/lib/libQtCore.so.4 #26 0x00007f104fb2449c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4 #27 0x00007f104fb29f8d in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4 #28 0x00007f1053ccc926 in KApplication::notify (this=0x7fff3af5e240, receiver=0x2219b08, event=0x7fff3af5de50) at ../../kdeui/kernel/kapplication.cpp:309 #29 0x00007f10509c180c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4 #30 0x00007f10509f0e42 in ?? () from /usr/lib/libQtCore.so.4 #31 0x00007f10509f0f7c in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4 #32 0x00007f104fbd73df in ?? () from /usr/lib/libQtGui.so.4 #33 0x00007f10509c0532 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4 #34 0x00007f10509c091c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4 #35 0x00007f10509c49cb in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4 #36 0x00007f10544c065d in kdemain (argc=<value optimized out>, argv=<value optimized out>) at ../../kwin/main.cpp:531 #37 0x00007f1054106c4d 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=0x7fff3af5e848) at libc-start.c:226 #38 0x00000000004006b9 in _start () Possible duplicates by query: bug 244813. Reported using DrKonqi 993119 1 mgraesslin 2010-07-22 20:16:00 +0000 *** This bug has been marked as a duplicate of bug 244813 ***