Bug 348793

Application: kwin_x11 (5.3.1)

Qt Version: 5.4.1
Operating System: Linux 3.19.0-20-generic x86_64
Distribution: Ubuntu 15.04

-- Information about the crash:
i was using desktop grid effect and whnen I selected an app window, kwin crashed

-- Backtrace:
Application: KWin (kwin_x11), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f6e59b31800 (LWP 1801))]

Thread 5 (Thread 0x7f6e3b7fe700 (LWP 1849)):
#0  0x00007f6e595fd743 in select () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f6e57beb101 in qt_safe_select (nfds=15, fdread=fdread@entry=0x7f6e2c000a78, fdwrite=fdwrite@entry=0x7f6e2c000d08, fdexcept=fdexcept@entry=0x7f6e2c000f98, orig_timeout=orig_timeout@entry=0x0) at kernel/qcore_unix.cpp:75
#2  0x00007f6e57beccd2 in select (timeout=0x0, exceptfds=0x7f6e2c000f98, writefds=0x7f6e2c000d08, readfds=0x7f6e2c000a78, nfds=<optimized out>, this=0x7f6e2c0008c0) at kernel/qeventdispatcher_unix.cpp:320
#3  QEventDispatcherUNIXPrivate::doSelect (this=this@entry=0x7f6e2c0008e0, flags=..., flags@entry=..., timeout=timeout@entry=0x0) at kernel/qeventdispatcher_unix.cpp:196
#4  0x00007f6e57bed275 in QEventDispatcherUNIX::processEvents (this=0x7f6e2c0008c0, flags=...) at kernel/qeventdispatcher_unix.cpp:607
#5  0x00007f6e57b943e2 in QEventLoop::exec (this=this@entry=0x7f6e3b7fdda0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f6e57953b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f6e517b6f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f6e57958b0e in QThreadPrivate::start (arg=0x1bb5f70) at thread/qthread_unix.cpp:337
#9  0x00007f6e58e786aa in start_thread (arg=0x7f6e3b7fe700) at pthread_create.c:333
#10 0x00007f6e59606eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f6e2bfff700 (LWP 1861)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f6e5675c644 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007f6e5675c689 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007f6e58e786aa in start_thread (arg=0x7f6e2bfff700) at pthread_create.c:333
#4  0x00007f6e59606eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f6e395a9700 (LWP 2287)):
#0  __libc_enable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:57
#1  0x00007f6e595fd735 in select () at ../sysdeps/unix/syscall-template.S:81
#2  0x00007f6e57beb101 in qt_safe_select (nfds=13, fdread=fdread@entry=0x7f6e3001ddf8, fdwrite=fdwrite@entry=0x7f6e3001e088, fdexcept=fdexcept@entry=0x7f6e3001e318, orig_timeout=orig_timeout@entry=0x0) at kernel/qcore_unix.cpp:75
#3  0x00007f6e57beccd2 in select (timeout=0x0, exceptfds=0x7f6e3001e318, writefds=0x7f6e3001e088, readfds=0x7f6e3001ddf8, nfds=<optimized out>, this=0x7f6e300008c0) at kernel/qeventdispatcher_unix.cpp:320
#4  QEventDispatcherUNIXPrivate::doSelect (this=this@entry=0x7f6e3001dc60, flags=..., flags@entry=..., timeout=timeout@entry=0x0) at kernel/qeventdispatcher_unix.cpp:196
#5  0x00007f6e57bed275 in QEventDispatcherUNIX::processEvents (this=0x7f6e300008c0, flags=...) at kernel/qeventdispatcher_unix.cpp:607
#6  0x00007f6e57b943e2 in QEventLoop::exec (this=this@entry=0x7f6e395a8da0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007f6e57953b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#8  0x00007f6e517b6f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f6e57958b0e in QThreadPrivate::start (arg=0x20fd830) at thread/qthread_unix.cpp:337
#10 0x00007f6e58e786aa in start_thread (arg=0x7f6e395a9700) at pthread_create.c:333
#11 0x00007f6e59606eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f6e3bfff700 (LWP 2662)):
#0  0x00007f6e595fd743 in select () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f6e57beb101 in qt_safe_select (nfds=14, fdread=fdread@entry=0x7f6e34000a78, fdwrite=fdwrite@entry=0x7f6e34000d08, fdexcept=fdexcept@entry=0x7f6e34000f98, orig_timeout=orig_timeout@entry=0x0) at kernel/qcore_unix.cpp:75
#2  0x00007f6e57beccd2 in select (timeout=0x0, exceptfds=0x7f6e34000f98, writefds=0x7f6e34000d08, readfds=0x7f6e34000a78, nfds=<optimized out>, this=0x7f6e340008c0) at kernel/qeventdispatcher_unix.cpp:320
#3  QEventDispatcherUNIXPrivate::doSelect (this=this@entry=0x7f6e340008e0, flags=..., flags@entry=..., timeout=timeout@entry=0x0) at kernel/qeventdispatcher_unix.cpp:196
#4  0x00007f6e57bed275 in QEventDispatcherUNIX::processEvents (this=0x7f6e340008c0, flags=...) at kernel/qeventdispatcher_unix.cpp:607
#5  0x00007f6e57b943e2 in QEventLoop::exec (this=this@entry=0x7f6e3bffeda0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f6e57953b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f6e517b6f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f6e57958b0e in QThreadPrivate::start (arg=0x2a9a8a0) at thread/qthread_unix.cpp:337
#9  0x00007f6e58e786aa in start_thread (arg=0x7f6e3bfff700) at pthread_create.c:333
#10 0x00007f6e59606eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f6e59b31800 (LWP 1801)):
[KCrash Handler]
#6  0x00007f6e59535267 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:55
#7  0x00007f6e59536eca in __GI_abort () at abort.c:89
#8  0x00007f6e57945edf in qt_message_fatal (context=..., message=...) at global/qlogging.cpp:1415
#9  QMessageLogger::fatal (this=this@entry=0x7ffee65f2310, msg=msg@entry=0x7f6e5717ac28 "Splitting quads is allowed only in pre-paint calls!") at global/qlogging.cpp:636
#10 0x00007f6e57168031 in KWin::WindowQuad::makeSubQuad (this=this@entry=0x2cfaca0, x1=x1@entry=120.27642875056914, y1=y1@entry=-4.6938748510025228, x2=x2@entry=138, y2=y2@entry=37.892466851002517) at ../../libkwineffects/kwineffects.cpp:908
#11 0x00007f6e591af1f9 in KWin::SceneOpenGL::Window::beginRenderWindow (this=<optimized out>, mask=<optimized out>, region=..., data=...) at ../scene_opengl.cpp:1270
#12 0x00007f6e591af877 in KWin::SceneOpenGL2Window::performPaint (this=this@entry=0x2d44fa0, mask=mask@entry=118, region=..., data=...) at ../scene_opengl.cpp:1442
#13 0x00007f6e591b5482 in KWin::SceneOpenGL2::performPaintWindow (this=this@entry=0x1cf4dd0, w=w@entry=0x2d20880, mask=mask@entry=118, region=..., data=...) at ../scene_opengl.cpp:1092
#14 0x00007f6e591b5658 in KWin::SceneOpenGL2::finalDrawWindow (this=0x1cf4dd0, w=w@entry=0x2d20880, mask=mask@entry=118, region=..., data=...) at ../scene_opengl.cpp:1078
#15 0x00007f6e591cee29 in KWin::EffectsHandlerImpl::drawWindow (this=0x20aedf0, w=w@entry=0x2d20880, mask=mask@entry=118, region=..., data=...) at ../effects.cpp:477
#16 0x00007f6e571648b1 in KWin::Effect::drawWindow (this=this@entry=0x21c7230, w=w@entry=0x2d20880, mask=mask@entry=118, region=..., data=...) at ../../libkwineffects/kwineffects.cpp:580
#17 0x00007f6e591cedc1 in KWin::EffectsHandlerImpl::drawWindow (this=0x20aedf0, w=w@entry=0x2d20880, mask=mask@entry=118, region=..., data=...) at ../effects.cpp:474
#18 0x00007f6e56d110a5 in KWin::ContrastEffect::drawWindow (this=this@entry=0x1ca70c0, w=w@entry=0x2d20880, mask=mask@entry=118, region=..., data=...) at ../../effects/backgroundcontrast/contrast.cpp:347
#19 0x00007f6e591cedc1 in KWin::EffectsHandlerImpl::drawWindow (this=0x20aedf0, w=w@entry=0x2d20880, mask=mask@entry=118, region=..., data=...) at ../effects.cpp:474
#20 0x00007f6e56c8732b in KWin::BlurEffect::drawWindow (this=this@entry=0x20df1d0, w=w@entry=0x2d20880, mask=mask@entry=118, region=..., data=...) at ../../effects/blur/blur.cpp:417
#21 0x00007f6e591cedc1 in KWin::EffectsHandlerImpl::drawWindow (this=0x20aedf0, w=w@entry=0x2d20880, mask=mask@entry=118, region=..., data=...) at ../effects.cpp:474
#22 0x00007f6e571648b1 in KWin::Effect::drawWindow (this=this@entry=0x2a97f90, w=w@entry=0x2d20880, mask=mask@entry=118, region=..., data=...) at ../../libkwineffects/kwineffects.cpp:580
#23 0x00007f6e591cedc1 in KWin::EffectsHandlerImpl::drawWindow (this=0x20aedf0, w=w@entry=0x2d20880, mask=mask@entry=118, region=..., data=...) at ../effects.cpp:474
#24 0x00007f6e571648b1 in KWin::Effect::drawWindow (this=this@entry=0x215ee60, w=w@entry=0x2d20880, mask=mask@entry=118, region=..., data=...) at ../../libkwineffects/kwineffects.cpp:580
#25 0x00007f6e591cedc1 in KWin::EffectsHandlerImpl::drawWindow (this=0x20aedf0, w=w@entry=0x2d20880, mask=mask@entry=118, region=..., data=...) at ../effects.cpp:474
#26 0x00007f6e571648b1 in KWin::Effect::drawWindow (this=this@entry=0x21a3710, w=w@entry=0x2d20880, mask=mask@entry=118, region=..., data=...) at ../../libkwineffects/kwineffects.cpp:580
#27 0x00007f6e591cedc1 in KWin::EffectsHandlerImpl::drawWindow (this=0x20aedf0, w=w@entry=0x2d20880, mask=mask@entry=118, region=..., data=...) at ../effects.cpp:474
#28 0x00007f6e59194131 in KWin::Scene::finalPaintWindow (this=<optimized out>, w=w@entry=0x2d20880, mask=mask@entry=118, region=..., data=...) at ../scene.cpp:607
#29 0x00007f6e591cec6a in KWin::EffectsHandlerImpl::paintWindow (this=0x20aedf0, w=w@entry=0x2d20880, mask=mask@entry=118, region=..., data=...) at ../effects.cpp:440
#30 0x00007f6e57164741 in KWin::Effect::paintWindow (this=this@entry=0x21c7230, w=w@entry=0x2d20880, mask=mask@entry=118, region=..., data=...) at ../../libkwineffects/kwineffects.cpp:550
#31 0x00007f6e591cec11 in KWin::EffectsHandlerImpl::paintWindow (this=0x20aedf0, w=w@entry=0x2d20880, mask=mask@entry=118, region=..., data=...) at ../effects.cpp:437
#32 0x00007f6e57164741 in KWin::Effect::paintWindow (this=this@entry=0x1ca70c0, w=w@entry=0x2d20880, mask=mask@entry=118, region=..., data=...) at ../../libkwineffects/kwineffects.cpp:550
#33 0x00007f6e591cec11 in KWin::EffectsHandlerImpl::paintWindow (this=0x20aedf0, w=w@entry=0x2d20880, mask=mask@entry=118, region=..., data=...) at ../effects.cpp:437
#34 0x00007f6e57164741 in KWin::Effect::paintWindow (this=this@entry=0x20df1d0, w=w@entry=0x2d20880, mask=mask@entry=118, region=..., data=...) at ../../libkwineffects/kwineffects.cpp:550
#35 0x00007f6e591cec11 in KWin::EffectsHandlerImpl::paintWindow (this=0x20aedf0, w=w@entry=0x2d20880, mask=mask@entry=118, region=..., data=...) at ../effects.cpp:437
#36 0x00007f6e56cfc77a in KWin::FallApartEffect::paintWindow (this=this@entry=0x2a97f90, w=w@entry=0x2d20880, mask=mask@entry=118, region=..., data=...) at ../../effects/fallapart/fallapart.cpp:120
#37 0x00007f6e591cec11 in KWin::EffectsHandlerImpl::paintWindow (this=0x20aedf0, w=w@entry=0x2d20880, mask=mask@entry=118, region=..., data=...) at ../effects.cpp:437
#38 0x00007f6e57172b67 in KWin::AnimationEffect::paintWindow (this=this@entry=0x215ee60, w=w@entry=0x2d20880, mask=mask@entry=118, region=..., data=...) at ../../libkwineffects/kwinanimationeffect.cpp:585
#39 0x00007f6e591cec11 in KWin::EffectsHandlerImpl::paintWindow (this=0x20aedf0, w=w@entry=0x2d20880, mask=mask@entry=118, region=..., data=...) at ../effects.cpp:437
#40 0x00007f6e56cb047e in KWin::DesktopGridEffect::paintWindow (this=this@entry=0x21a3710, w=w@entry=0x2d20880, mask=mask@entry=118, region=..., data=...) at ../../effects/desktopgrid/desktopgrid.cpp:361
#41 0x00007f6e591cec11 in KWin::EffectsHandlerImpl::paintWindow (this=0x20aedf0, w=0x2d20880, mask=mask@entry=118, region=..., data=...) at ../effects.cpp:437
#42 0x00007f6e59199008 in KWin::Scene::paintWindow (this=this@entry=0x1cf4dd0, w=0x2d44fa0, mask=118, region=..., quads=...) at ../scene.cpp:479
#43 0x00007f6e59195ff6 in KWin::Scene::paintGenericScreen (this=this@entry=0x1cf4dd0, orig_mask=orig_mask@entry=112) at ../scene.cpp:243
#44 0x00007f6e591aaae4 in KWin::SceneOpenGL2::paintGenericScreen (this=this@entry=0x1cf4dd0, mask=mask@entry=112, data=...) at ../scene_opengl.cpp:1030
#45 0x00007f6e59193b3d in KWin::Scene::finalPaintScreen (this=0x1cf4dd0, mask=mask@entry=112, region=..., data=...) at ../scene.cpp:199
#46 0x00007f6e591ce9ef in KWin::EffectsHandlerImpl::paintScreen (this=0x20aedf0, mask=mask@entry=112, region=..., data=...) at ../effects.cpp:397
#47 0x00007f6e56d00b47 in KWin::ScreenEdgeEffect::paintScreen (this=this@entry=0x21c7230, mask=mask@entry=112, region=..., data=...) at ../../effects/screenedge/screenedgeeffect.cpp:81
#48 0x00007f6e591ce99d in KWin::EffectsHandlerImpl::paintScreen (this=0x20aedf0, mask=mask@entry=112, region=..., data=...) at ../effects.cpp:394
#49 0x00007f6e5716466f in KWin::Effect::paintScreen (this=this@entry=0x1ca70c0, mask=mask@entry=112, region=..., data=...) at ../../libkwineffects/kwineffects.cpp:535
#50 0x00007f6e591ce99d in KWin::EffectsHandlerImpl::paintScreen (this=0x20aedf0, mask=mask@entry=112, region=..., data=...) at ../effects.cpp:394
#51 0x00007f6e5716466f in KWin::Effect::paintScreen (this=this@entry=0x20df1d0, mask=mask@entry=112, region=..., data=...) at ../../libkwineffects/kwineffects.cpp:535
#52 0x00007f6e591ce99d in KWin::EffectsHandlerImpl::paintScreen (this=0x20aedf0, mask=mask@entry=112, region=..., data=...) at ../effects.cpp:394
#53 0x00007f6e5716466f in KWin::Effect::paintScreen (this=this@entry=0x2a97f90, mask=mask@entry=112, region=..., data=...) at ../../libkwineffects/kwineffects.cpp:535
#54 0x00007f6e591ce99d in KWin::EffectsHandlerImpl::paintScreen (this=0x20aedf0, mask=mask@entry=112, region=..., data=...) at ../effects.cpp:394
#55 0x00007f6e5716466f in KWin::Effect::paintScreen (this=this@entry=0x215ee60, mask=mask@entry=112, region=..., data=...) at ../../libkwineffects/kwineffects.cpp:535
#56 0x00007f6e591ce99d in KWin::EffectsHandlerImpl::paintScreen (this=0x20aedf0, mask=mask@entry=112, region=..., data=...) at ../effects.cpp:394
#57 0x00007f6e56caf10e in KWin::DesktopGridEffect::paintScreen (this=this@entry=0x21a3710, mask=mask@entry=112, region=..., data=...) at ../../effects/desktopgrid/desktopgrid.cpp:163
#58 0x00007f6e591ce99d in KWin::EffectsHandlerImpl::paintScreen (this=0x20aedf0, mask=112, region=..., data=...) at ../effects.cpp:394
#59 0x00007f6e5919375a in KWin::Scene::paintScreen (this=this@entry=0x1cf4dd0, mask=mask@entry=0x7ffee65f404c, damage=..., repaint=..., updateRegion=updateRegion@entry=0x7ffee65f4060, validRegion=validRegion@entry=0x7ffee65f4070) at ../scene.cpp:151
#60 0x00007f6e591b0d17 in KWin::SceneOpenGL::paint (this=0x1cf4dd0, damage=..., toplevels=...) at ../scene_opengl.cpp:661
#61 0x00007f6e5918bc03 in KWin::Compositor::performCompositing (this=0x1a96ec0) at ../composite.cpp:701
#62 0x00007f6e57bc86f3 in QObject::event (this=0x1a96ec0, e=<optimized out>) at kernel/qobject.cpp:1267
#63 0x00007f6e584a0b2c in QApplicationPrivate::notify_helper (this=0x198cc90, receiver=0x1a96ec0, e=0x7ffee65f4480) at kernel/qapplication.cpp:3720
#64 0x00007f6e584a6000 in QApplication::notify (this=0x7ffee65f46c0, receiver=0x1a96ec0, e=0x7ffee65f4480) at kernel/qapplication.cpp:3503
#65 0x00007f6e57b96c2b in QCoreApplication::notifyInternal (this=0x7ffee65f46c0, receiver=0x1a96ec0, event=event@entry=0x7ffee65f4480) at kernel/qcoreapplication.cpp:935
#66 0x00007f6e57beeae5 in sendEvent (event=0x7ffee65f4480, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:228
#67 QTimerInfoList::activateTimers (this=0x19d1b48) at kernel/qtimerinfo_unix.cpp:635
#68 0x00007f6e57bec6a0 in QEventDispatcherUNIX::activateTimers (this=this@entry=0x19c0460) at kernel/qeventdispatcher_unix.cpp:549
#69 0x00007f6e57bed243 in QEventDispatcherUNIX::processEvents (this=0x19c0460, flags=flags@entry=...) at kernel/qeventdispatcher_unix.cpp:611
#70 0x00007f6e43b0896d in QUnixEventDispatcherQPA::processEvents (this=<optimized out>, flags=...) at eventdispatchers/qunixeventdispatcher.cpp:62
#71 0x00007f6e57b943e2 in QEventLoop::exec (this=this@entry=0x7ffee65f45e0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#72 0x00007f6e57b9c02c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#73 0x00007f6e57edb31c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1510
#74 0x00007f6e5849c7a5 in QApplication::exec () at kernel/qapplication.cpp:2956
#75 0x00007f6e598cf320 in kdemain (argc=1, argv=0x7ffee65f4828) at ../main_x11.cpp:300
#76 0x00007f6e59520a40 in __libc_start_main (main=0x4007a0 <main(int, char**)>, argc=3, argv=0x7ffee65f4828, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffee65f4818) at libc-start.c:289
#77 0x00000000004007d9 in _start ()

Reported using DrKonqi