Application: kwin (4.11.4) KDE Platform Version: 4.11.4 Qt Version: 4.8.5 Operating System: Linux 3.12.6-200.fc19.x86_64 x86_64 Distribution: "Fedora release 19 (Schrödinger’s Cat)" -- Information about the crash: - What I was doing when the application crashed: Docked the laptop into docking station with external monitor, i.e. view change from single LCD to LCD + external monitor. -- Backtrace: Application: KWin (kwin), signal: Segmentation fault Using host libthread_db library "/lib64/libthread_db.so.1". 81 T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS) [Current thread is 1 (Thread 0x7fb9761e18c0 (LWP 2658))] Thread 2 (Thread 0x7fb963fff700 (LWP 2660)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 #1 0x00000035e67860bb in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x35e6a83f00 <QTWTF::pageheap_memory>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359 #2 0x00000035e67860f9 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464 #3 0x00000035c5e07c53 in start_thread (arg=0x7fb963fff700) at pthread_create.c:308 #4 0x00000035c56f5dbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 Thread 1 (Thread 0x7fb9761e18c0 (LWP 2658)): [KCrash Handler] #6 KWin::DesktopGridEffect::scalePos (this=this@entry=0x2d1e590, pos=..., desktop=<optimized out>, screen=screen@entry=1) at /usr/src/debug/kde-workspace-4.11.4/kwin/effects/desktopgrid/desktopgrid.cpp:795 #7 0x00007fb8d2814560 in KWin::DesktopGridEffect::paintWindow (this=this@entry=0x2d1e590, w=w@entry=0x4644890, mask=<optimized out>, mask@entry=85, region=..., data=...) at /usr/src/debug/kde-workspace-4.11.4/kwin/effects/desktopgrid/desktopgrid.cpp:330 #8 0x0000003e112e898b in KWin::EffectsHandlerImpl::paintWindow (this=0x2c7b080, w=0x4644890, mask=mask@entry=85, region=..., data=...) at /usr/src/debug/kde-workspace-4.11.4/kwin/effects.cpp:414 #9 0x0000003e112ca7ee in KWin::Scene::paintWindow (this=0x2ada960, w=0x5525bd0, mask=85, region=..., quads=...) at /usr/src/debug/kde-workspace-4.11.4/kwin/scene.cpp:378 #10 0x0000003e112c9836 in KWin::Scene::paintGenericScreen (this=this@entry=0x2ada960, orig_mask=orig_mask@entry=80) at /usr/src/debug/kde-workspace-4.11.4/kwin/scene.cpp:226 #11 0x0000003e112d579d in KWin::SceneOpenGL2::paintGenericScreen (this=this@entry=0x2ada960, mask=mask@entry=80, data=...) at /usr/src/debug/kde-workspace-4.11.4/kwin/scene_opengl.cpp:687 #12 0x0000003e112c6dad in KWin::Scene::finalPaintScreen (this=0x2ada960, mask=mask@entry=80, region=..., data=...) at /usr/src/debug/kde-workspace-4.11.4/kwin/scene.cpp:182 #13 0x0000003e112e88fd in KWin::EffectsHandlerImpl::paintScreen (this=0x2c7b080, mask=mask@entry=80, region=..., data=...) at /usr/src/debug/kde-workspace-4.11.4/kwin/effects.cpp:374 #14 0x00007fb8d28060c7 in KWin::ScreenEdgeEffect::paintScreen (this=this@entry=0x2da5ac0, mask=mask@entry=80, region=..., data=...) at /usr/src/debug/kde-workspace-4.11.4/kwin/effects/screenedge/screenedgeeffect.cpp:83 #15 0x0000003e112e88ba in KWin::EffectsHandlerImpl::paintScreen (this=0x2c7b080, mask=mask@entry=80, region=..., data=...) at /usr/src/debug/kde-workspace-4.11.4/kwin/effects.cpp:371 #16 0x0000003e0aa119df in KWin::Effect::paintScreen (this=this@entry=0x2bdcb50, mask=mask@entry=80, region=..., data=...) at /usr/src/debug/kde-workspace-4.11.4/kwin/libkwineffects/kwineffects.cpp:522 #17 0x0000003e112e88ba in KWin::EffectsHandlerImpl::paintScreen (this=0x2c7b080, mask=mask@entry=80, region=..., data=...) at /usr/src/debug/kde-workspace-4.11.4/kwin/effects.cpp:371 #18 0x00007fb8d28138bb in KWin::DesktopGridEffect::paintScreen (this=this@entry=0x2d1e590, mask=mask@entry=80, region=..., data=...) at /usr/src/debug/kde-workspace-4.11.4/kwin/effects/desktopgrid/desktopgrid.cpp:165 #19 0x0000003e112e88ba in KWin::EffectsHandlerImpl::paintScreen (this=0x2c7b080, mask=80, region=..., data=...) at /usr/src/debug/kde-workspace-4.11.4/kwin/effects.cpp:371 #20 0x0000003e112c9168 in KWin::Scene::paintScreen (this=this@entry=0x2ada960, mask=mask@entry=0x7ffff15134fc, region=region@entry=0x7ffff15135b0) at /usr/src/debug/kde-workspace-4.11.4/kwin/scene.cpp:141 #21 0x0000003e112db957 in KWin::SceneOpenGL::paint (this=0x2ada960, damage=..., toplevels=...) at /usr/src/debug/kde-workspace-4.11.4/kwin/scene_opengl.cpp:360 #22 0x0000003e112c1163 in KWin::Compositor::performCompositing (this=0x2763d40) at /usr/src/debug/kde-workspace-4.11.4/kwin/composite.cpp:618 #23 0x00000035cf792141 in QObject::event (this=0x2763d40, e=<optimized out>) at kernel/qobject.cpp:1156 #24 0x00000035d33c852c in QApplicationPrivate::notify_helper (this=this@entry=0x2487a90, receiver=receiver@entry=0x2763d40, e=e@entry=0x7ffff15139a0) at kernel/qapplication.cpp:4562 #25 0x00000035d33ceaf0 in QApplication::notify (this=this@entry=0x7ffff1513e70, receiver=receiver@entry=0x2763d40, e=e@entry=0x7ffff15139a0) at kernel/qapplication.cpp:4348 #26 0x0000003e0723feba in KApplication::notify (this=0x7ffff1513e70, receiver=0x2763d40, event=0x7ffff15139a0) at /usr/src/debug/kdelibs-4.11.4/kdeui/kernel/kapplication.cpp:311 #27 0x00000035cf77a26d in QCoreApplication::notifyInternal (this=0x7ffff1513e70, receiver=0x2763d40, event=0x7ffff15139a0) at kernel/qcoreapplication.cpp:949 #28 0x00000035cf7a9c13 in sendEvent (event=<optimized out>, receiver=<optimized out>) at kernel/qcoreapplication.h:231 #29 QTimerInfoList::activateTimers (this=0x2488488) at kernel/qeventdispatcher_unix.cpp:621 #30 0x00000035cf7a9c90 in QEventDispatcherUNIX::activateTimers (this=this@entry=0x242bc80) at kernel/qeventdispatcher_unix.cpp:878 #31 0x00000035cf7aa600 in QEventDispatcherUNIX::processEvents (this=this@entry=0x242bc80, flags=...) at kernel/qeventdispatcher_unix.cpp:940 #32 0x00000035d3465936 in QEventDispatcherX11::processEvents (this=0x242bc80, flags=...) at kernel/qeventdispatcher_x11.cpp:152 #33 0x00000035cf778ecf in QEventLoop::processEvents (this=this@entry=0x7ffff1513ce0, flags=...) at kernel/qeventloop.cpp:149 #34 0x00000035cf7791c5 in QEventLoop::exec (this=this@entry=0x7ffff1513ce0, flags=...) at kernel/qeventloop.cpp:204 #35 0x00000035cf77e45b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1221 #36 0x00000035d33c6cec in QApplication::exec () at kernel/qapplication.cpp:3823 #37 0x0000003e1127b7e6 in kdemain (argc=3, argv=0x7ffff1513fb8) at /usr/src/debug/kde-workspace-4.11.4/kwin/main.cpp:597 #38 0x00000035c5621b45 in __libc_start_main (main=0x4009d0 <main(int, char**)>, argc=3, ubp_av=0x7ffff1513fb8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffff1513fa8) at libc-start.c:274 #39 0x0000000000400a01 in _start () Reported using DrKonqi
from the crash report it looks like you were using Desktop Grid while pluging in the screen. Can you confirm that?
I have Desktop Grid enabled in KDE but don't think it has been displayed while plugging the display in.
Happens. Removing a screen with DG active doesn't work properly either (but got no crash) Slightly different trace: Thread 1 (Thread 0xaee66740 (LWP 3604)): [KCrash Handler] #6 0xa723bd44 in QHash<KWin::EffectWindow*, KWin::WindowMotionManager::WindowMotion>::findNode (this=this@entry=0xa5d4a9c, akey=<optimized out>, ahp=0x0) at /usr/include/qt4/QtCore/qhash.h:884 #7 0xa7243215 in contains (akey=<synthetic pointer>, this=0xa5d4a9c) at /usr/include/qt4/QtCore/qhash.h:874 #8 isManaging (w=0xa46cf70, this=0xa5d4a98) at /home/src/KDE4/kde-workspace/kwin/libkwineffects/kwineffects.h:2514 #9 KWin::DesktopGridEffect::paintWindow (this=this@entry=0xa2bb800, w=w@entry=0xa46cf70, mask=<optimized out>, mask@entry=85, region=..., data=...) at /home/src/KDE4/kde-workspace/kwin/effects/desktopgrid/desktopgrid.cpp:305 #10 0xb76701b2 in KWin::EffectsHandlerImpl::paintWindow (this=0xa46e068, w=0xa46cf70, mask=mask@entry=85, region=..., data=...) at /home/src/KDE4/kde-workspace/kwin/effects.cpp:415 #11 0xb764d256 in KWin::Scene::paintWindow (this=0xa23c630, w=0xa480830, mask=85, region=..., quads=...) at /home/src/KDE4/kde-workspace/kwin/scene.cpp:412 #12 0xb764bfcf in KWin::Scene::paintGenericScreen (this=this@entry=0xa23c630, orig_mask=orig_mask@entry=80) at /home/src/KDE4/kde-workspace/kwin/scene.cpp:240 #13 0xb7659ad8 in KWin::SceneOpenGL2::paintGenericScreen (this=this@entry=0xa23c630, mask=mask@entry=80, data=...) at /home/src/KDE4/kde-workspace/kwin/scene_opengl.cpp:754 #14 0xb7648ed0 in KWin::Scene::finalPaintScreen (this=0xa23c630, mask=mask@entry=80, region=..., data=...) at /home/src/KDE4/kde-workspace/kwin/scene.cpp:196 #15 0xb7670123 in KWin::EffectsHandlerImpl::paintScreen (this=0xa46e068, mask=mask@entry=80, region=..., data=...) at /home/src/KDE4/kde-workspace/kwin/effects.cpp:375 #16 0xb69a768e in KWin::Effect::paintScreen (this=this@entry=0xa324000, mask=mask@entry=80, region=..., data=...) at /home/src/KDE4/kde-workspace/kwin/libkwineffects/kwineffects.cpp:522
Likely "accidentally" activated by active screen edge/corner. Backtrace sugests this and I can confirm that there's a bug (while i change the screen layout n times a day w/o any problem otherwise)
That might be the case - I have an active corner which could have been activated via a random mouse movement.
Thank you for the report. As it has been a while since this was reported, can you please test and confirm if this issue is still occurring or if this bug report can be marked as resolved. I have set the bug status to "needsinfo" pending your response, please change back to "reported" or "resolved/worksforme" when you respond, thank you.
Dear Bug Submitter, This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information as soon as possible and set the bug status as REPORTED. Due to regular bug tracker maintenance, if the bug is still in NEEDSINFO status with no change in 30 days the bug will be closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging If you have already provided the requested information, please mark the bug as REPORTED so that the KDE team knows that the bug is ready to be confirmed. Thank you for helping us make KDE software even better for everyone!
This bug has been in NEEDSINFO status with no change for at least 30 days. The bug is now closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging Thank you for helping us make KDE software even better for everyone!