Application: kwin_gles (4.10.00) KDE Platform Version: 4.10.00 Qt Version: 4.8.5 Operating System: Linux 3.8.0-6-generic x86_64 Distribution: Ubuntu Raring Ringtail (development branch) -- Information about the crash: - What I was doing when the application crashed: Trying to switch windows using Atl+Tab - Unusual behavior I noticed: KWin crashed when I try to use alt+tab, everything else works fine. Crash only happens when using compositing. - Custom settings of the application: Nothing apart from some custom shortcuts and the usual set of kwin plugins The crash can be reproduced every time. -- Backtrace: Application: KWin (kwin_gles), signal: Aborted Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". [Current thread is 1 (Thread 0x7f309f9e67c0 (LWP 8425))] Thread 2 (Thread 0x7f3083e0a700 (LWP 8426)): #0 pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 #1 0x00007f30995e332f in QWaitConditionPrivate::wait (this=0x12bed40, time=30000) at thread/qwaitcondition_unix.cpp:84 #2 0x00007f30995e30f5 in QWaitCondition::wait (this=0x12becc0, mutex=0x12becb8, time=30000) at thread/qwaitcondition_unix.cpp:158 #3 0x00007f30995d0af9 in QThreadPoolThread::run (this=0x12bee20) at concurrent/qthreadpool.cpp:141 #4 0x00007f30995e1c92 in QThreadPrivate::start (arg=0x12bee20) at thread/qthread_unix.cpp:338 #5 0x00007f309932cf8e in start_thread (arg=0x7f3083e0a700) at pthread_create.c:311 #6 0x00007f309f173e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 Thread 1 (Thread 0x7f309f9e67c0 (LWP 8425)): [KCrash Handler] #6 0x00007f309f0b1037 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56 #7 0x00007f309f0b4698 in __GI_abort () at abort.c:90 #8 0x00007f30995d44f7 in qt_message_output (msgType=QtFatalMsg, buf=0x193f348 "ASSERT: \"!isEmpty()\" in file /opt/project-neon/include/QtCore/qlist.h, line 284") at global/qglobal.cpp:2323 #9 0x00007f30995d4696 in qt_message(QtMsgType, const char *, typedef __va_list_tag __va_list_tag *) (msgType=QtFatalMsg, msg=0x7f30997a1b68 "ASSERT: \"%s\" in file %s, line %d", ap=0x7fff5b1c7f88) at global/qglobal.cpp:2369 #10 0x00007f30995d4e60 in qFatal (msg=0x7f30997a1b68 "ASSERT: \"%s\" in file %s, line %d") at global/qglobal.cpp:2552 #11 0x00007f30995d40b0 in qt_assert (assertion=0x7f3082c6faab "!isEmpty()", file=0x7f3082c6fa60 "/opt/project-neon/include/QtCore/qlist.h", line=284) at global/qglobal.cpp:2018 #12 0x00007f3082bc4688 in QList<KWin::EffectWindow*>::last (this=0x1936a68) at /opt/project-neon/include/QtCore/qlist.h:284 #13 0x00007f3082c051b6 in KWin::SlideBackEffect::slotStackingOrderChanged (this=0x1936a40) at /build/buildd/project-neon-kde-workspace-2+git20130219+r47550/kwin/effects/slideback/slideback.cpp:69 #14 0x00007f3082bacd20 in KWin::SlideBackEffect::qt_static_metacall (_o=0x1936a40, _c=QMetaObject::InvokeMetaMethod, _id=3, _a=0x7fff5b1c81b0) at /build/buildd/project-neon-kde-workspace-2+git20130219+r47550/obj-x86_64-linux-gnu/kwin/effects/moc_slideback.cpp:61 #15 0x00007f309973c03e in QMetaObject::activate (sender=0x16c03f0, m=0x7f309d7bd0a0 <KWin::EffectsHandler::staticMetaObject>, local_signal_index=33, argv=0x0) at kernel/qobject.cpp:3547 #16 0x00007f309d59ac75 in KWin::EffectsHandler::stackingOrderChanged (this=0x16c03f0) at /build/buildd/project-neon-kde-workspace-2+git20130219+r47550/obj-x86_64-linux-gnu/kwin/libkwineffects/kwineffects.moc:683 #17 0x00007f309d5994ad in KWin::EffectsHandler::qt_static_metacall (_o=0x16c03f0, _c=QMetaObject::InvokeMetaMethod, _id=33, _a=0x7fff5b1c8390) at /build/buildd/project-neon-kde-workspace-2+git20130219+r47550/obj-x86_64-linux-gnu/kwin/libkwineffects/kwineffects.moc:321 #18 0x00007f309973c03e in QMetaObject::activate (sender=0x13040e0, m=0x7f309f81dea0 <KWin::Workspace::staticMetaObject>, local_signal_index=17, argv=0x0) at kernel/qobject.cpp:3547 #19 0x00007f309f49530d in KWin::Workspace::stackingOrderChanged (this=0x13040e0) at /build/buildd/project-neon-kde-workspace-2+git20130219+r47550/obj-x86_64-linux-gnu/kwin/workspace.moc:504 #20 0x00007f309f4c1db1 in KWin::Workspace::updateStackingOrder (this=0x13040e0, propagate_new_clients=false) at /build/buildd/project-neon-kde-workspace-2+git20130219+r47550/kwin/layers.cpp:137 #21 0x00007f309f4c3ed9 in KWin::Workspace::blockStackingUpdates (this=0x13040e0, block=false) at /build/buildd/project-neon-kde-workspace-2+git20130219+r47550/kwin/layers.cpp:654 #22 0x00007f309f4962a0 in KWin::StackingUpdatesBlocker::~StackingUpdatesBlocker (this=0x7fff5b1c84f0, __in_chrg=<optimized out>) at /build/buildd/project-neon-kde-workspace-2+git20130219+r47550/kwin/workspace.h:755 #23 0x00007f309f4c2e26 in KWin::Workspace::raiseClient (this=0x13040e0, c=0x13f1780, nogroup=false) at /build/buildd/project-neon-kde-workspace-2+git20130219+r47550/kwin/layers.cpp:391 #24 0x00007f309f4ecf5c in KWin::Workspace::activateClient (this=0x13040e0, c=0x13f1780, force=false) at /build/buildd/project-neon-kde-workspace-2+git20130219+r47550/kwin/activation.cpp:285 #25 0x00007f309f582b2e in KWin::TabBox::TabBox::accept (this=0x1290ff0) at /build/buildd/project-neon-kde-workspace-2+git20130219+r47550/kwin/tabbox/tabbox.cpp:1415 #26 0x00007f309f582d19 in KWin::TabBox::TabBox::keyRelease (this=0x1290ff0, ev=...) at /build/buildd/project-neon-kde-workspace-2+git20130219+r47550/kwin/tabbox/tabbox.cpp:1469 #27 0x00007f309f4d0a9c in KWin::Workspace::workspaceEvent (this=0x13040e0, e=0x7fff5b1c8bd0) at /build/buildd/project-neon-kde-workspace-2+git20130219+r47550/kwin/events.cpp:280 #28 0x00007f309f4c8ab4 in KWin::Application::x11EventFilter (this=0x7fff5b1c8f30, e=0x7fff5b1c8bd0) at /build/buildd/project-neon-kde-workspace-2+git20130219+r47550/kwin/main.cpp:361 #29 0x00007f3098582359 in qt_x11EventFilter (ev=0x7fff5b1c8bd0) at kernel/qapplication_x11.cpp:435 #30 0x00007f30985920aa in QApplication::x11ProcessEvent (this=0x7fff5b1c8f30, event=0x7fff5b1c8bd0) at kernel/qapplication_x11.cpp:3352 #31 0x00007f30985d0948 in QEventDispatcherX11::processEvents (this=0x10d5ad0, flags=...) at kernel/qeventdispatcher_x11.cpp:132 #32 0x00007f309971a59c in QEventLoop::processEvents (this=0x7fff5b1c8d90, flags=...) at kernel/qeventloop.cpp:149 #33 0x00007f309971a730 in QEventLoop::exec (this=0x7fff5b1c8d90, flags=...) at kernel/qeventloop.cpp:204 #34 0x00007f309971d8da in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1221 #35 0x00007f30984efffc in QApplication::exec () at kernel/qapplication.cpp:3823 #36 0x00007f309f4c9b57 in kdemain (argc=2, argv=0x7fff5b1c9088) at /build/buildd/project-neon-kde-workspace-2+git20130219+r47550/kwin/main.cpp:536 #37 0x000000000040083e in main (argc=2, argv=0x7fff5b1c9088) at /build/buildd/project-neon-kde-workspace-2+git20130219+r47550/obj-x86_64-linux-gnu/kwin/kwin_gles_dummy.cpp:3 Possible duplicates by query: bug 313194, bug 313047, bug 311441, bug 310887, bug 307621. Reported using DrKonqi
Created attachment 77469 [details] Hotfix The flags are only to marks a clear driver issue. You run the current git master, not 4.10. Attached is a patch to fix the issue (in two dimensions) RR later, but if it compiles it will work ;-)
Thanks Thomas! The fix does work for me, no more crashes :) PS: Yeah, I didn't know the flag was for driver issues and thought Dr. Konqui would have chosen the right version automagically.
skip the review request :-)
Git commit 1b1afdf00f326d9145da14a84eb118433705036e by Thomas Lübking. Committed on 20/02/2013 at 22:40. Pushed by luebking into branch 'master'. check list validity before taking last item also block for tabboxes *around* stackorder changes M +2 -2 kwin/effects/slideback/slideback.cpp http://commits.kde.org/kde-workspace/1b1afdf00f326d9145da14a84eb118433705036e