Bug 346749

Application: kwin_x11 (5.2.2)

Qt Version: 5.4.1
Operating System: Linux 3.19.0-15-generic x86_64
Distribution: Ubuntu 15.04

-- Information about the crash:
- What I was doing when the application crashed:

Mostly title. Also after the crash the playback resumed with corrupted graphics

-- Backtrace:
Application: KWin (kwin_x11), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f85e70f0800 (LWP 1967))]

Thread 4 (Thread 0x7f85ca29e700 (LWP 1992)):
#0  0x00007f85e6bb6743 in select () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f85e5400101 in qt_safe_select (nfds=16, fdread=fdread@entry=0x7f85c0000a78, fdwrite=fdwrite@entry=0x7f85c0000d08, fdexcept=fdexcept@entry=0x7f85c0000f98, orig_timeout=orig_timeout@entry=0x0) at kernel/qcore_unix.cpp:75
#2  0x00007f85e5401cd2 in select (timeout=0x0, exceptfds=0x7f85c0000f98, writefds=0x7f85c0000d08, readfds=0x7f85c0000a78, nfds=<optimized out>, this=0x7f85c00008c0) at kernel/qeventdispatcher_unix.cpp:320
#3  QEventDispatcherUNIXPrivate::doSelect (this=this@entry=0x7f85c00008e0, flags=..., flags@entry=..., timeout=timeout@entry=0x0) at kernel/qeventdispatcher_unix.cpp:196
#4  0x00007f85e5402275 in QEventDispatcherUNIX::processEvents (this=0x7f85c00008c0, flags=...) at kernel/qeventdispatcher_unix.cpp:607
#5  0x00007f85e53a93e2 in QEventLoop::exec (this=this@entry=0x7f85ca29dda0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f85e5168b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f85df01bf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f85e516db0e in QThreadPrivate::start (arg=0x1aa4ce0) at thread/qthread_unix.cpp:337
#9  0x00007f85de1e86aa in start_thread (arg=0x7f85ca29e700) at pthread_create.c:333
#10 0x00007f85e6bbfeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f85b98d4700 (LWP 2010)):
#0  0x00007f85e6bb60b7 in ioctl () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f85c90f1919 in uki_firegl_MicroSleep () from /usr/lib/libatiuki.so.1
#2  0x00007f85bb6f1920 in ?? () from /usr/lib/dri/fglrx_dri.so
#3  0x00007f85bae82d72 in ?? () from /usr/lib/dri/fglrx_dri.so
#4  0x00007f85bae82dc5 in ?? () from /usr/lib/dri/fglrx_dri.so
#5  0x00007f85de1e86aa in start_thread (arg=0x7f85b98d4700) at pthread_create.c:333
#6  0x00007f85e6bbfeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f85b35f2700 (LWP 2028)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f85e3f72644 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007f85e3f72689 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007f85de1e86aa in start_thread (arg=0x7f85b35f2700) at pthread_create.c:333
#4  0x00007f85e6bbfeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f85e70f0800 (LWP 1967)):
[KCrash Handler]
#6  0x00007f85ba56461f in ?? () from /usr/lib/dri/fglrx_dri.so
#7  0x00007f85b9c56049 in ?? () from /usr/lib/dri/fglrx_dri.so
#8  0x00007f85b9c562d2 in ?? () from /usr/lib/dri/fglrx_dri.so
#9  0x00007f85ba0839c3 in ?? () from /usr/lib/dri/fglrx_dri.so
#10 0x00007f85e449c81e in KWin::BlurEffect::doCachedBlur (this=0x20be2e0, w=0x7f85dd5b6280 <glCopyTexSubImage2D>, region=..., opacity=9.14767638e-41) at ../../effects/blur/blur.cpp:591
#11 0x00007f85e449d4e1 in KWin::BlurEffect::drawWindow (this=this@entry=0x20be2e0, w=w@entry=0x20ee5b0, mask=mask@entry=10, region=..., data=...) at ../../effects/blur/blur.cpp:407
#12 0x00007f85e679f0d1 in KWin::EffectsHandlerImpl::drawWindow (this=0x20f6010, w=w@entry=0x20ee5b0, mask=mask@entry=10, region=..., data=...) at ../effects.cpp:470
#13 0x00007f85e6768841 in KWin::Scene::finalPaintWindow (this=<optimized out>, w=w@entry=0x20ee5b0, mask=mask@entry=10, region=..., data=...) at ../scene.cpp:605
#14 0x00007f85e679ef7a in KWin::EffectsHandlerImpl::paintWindow (this=0x20f6010, w=w@entry=0x20ee5b0, mask=mask@entry=10, region=..., data=...) at ../effects.cpp:436
#15 0x00007f85e4979651 in KWin::Effect::paintWindow (this=this@entry=0x210ba30, w=w@entry=0x20ee5b0, mask=mask@entry=10, region=..., data=...) at ../../libkwineffects/kwineffects.cpp:550
#16 0x00007f85e679ef21 in KWin::EffectsHandlerImpl::paintWindow (this=0x20f6010, w=w@entry=0x20ee5b0, mask=mask@entry=10, region=..., data=...) at ../effects.cpp:433
#17 0x00007f85e4979651 in KWin::Effect::paintWindow (this=this@entry=0x20be2e0, w=w@entry=0x20ee5b0, mask=mask@entry=10, region=..., data=...) at ../../libkwineffects/kwineffects.cpp:550
#18 0x00007f85e679ef21 in KWin::EffectsHandlerImpl::paintWindow (this=0x20f6010, w=0x20ee5b0, mask=mask@entry=10, region=..., data=...) at ../effects.cpp:433
#19 0x00007f85e676cee8 in KWin::Scene::paintWindow (this=this@entry=0x205c510, w=0x21b0d00, mask=10, region=..., quads=...) at ../scene.cpp:477
#20 0x00007f85e676ac0e in KWin::Scene::paintSimpleScreen (this=this@entry=0x205c510, orig_mask=orig_mask@entry=8, region=...) at ../scene.cpp:380
#21 0x00007f85e677b513 in KWin::SceneOpenGL2::paintSimpleScreen (this=this@entry=0x205c510, mask=mask@entry=8, region=...) at ../scene_opengl.cpp:1005
#22 0x00007f85e6768205 in KWin::Scene::finalPaintScreen (this=0x205c510, mask=mask@entry=8, region=..., data=...) at ../scene.cpp:199
#23 0x00007f85e679ecff in KWin::EffectsHandlerImpl::paintScreen (this=0x20f6010, mask=mask@entry=8, region=..., data=...) at ../effects.cpp:393
#24 0x00007f85e497957f in KWin::Effect::paintScreen (this=this@entry=0x210ba30, mask=mask@entry=8, region=..., data=...) at ../../libkwineffects/kwineffects.cpp:535
#25 0x00007f85e679ecad in KWin::EffectsHandlerImpl::paintScreen (this=0x20f6010, mask=mask@entry=8, region=..., data=...) at ../effects.cpp:390
#26 0x00007f85e497957f in KWin::Effect::paintScreen (this=this@entry=0x20be2e0, mask=mask@entry=8, region=..., data=...) at ../../libkwineffects/kwineffects.cpp:535
#27 0x00007f85e679ecad in KWin::EffectsHandlerImpl::paintScreen (this=0x20f6010, mask=8, region=..., data=...) at ../effects.cpp:390
#28 0x00007f85e6767e6a in KWin::Scene::paintScreen (this=this@entry=0x205c510, mask=mask@entry=0x7ffdacdb1d6c, damage=..., repaint=..., updateRegion=updateRegion@entry=0x7ffdacdb1d80, validRegion=validRegion@entry=0x7ffdacdb1d90) at ../scene.cpp:149
#29 0x00007f85e6781da7 in KWin::SceneOpenGL::paint (this=0x205c510, damage=..., toplevels=...) at ../scene_opengl.cpp:651
#30 0x00007f85e6761973 in KWin::Compositor::performCompositing (this=0x196f350) at ../composite.cpp:658
#31 0x00007f85e53dd6f3 in QObject::event (this=0x196f350, e=<optimized out>) at kernel/qobject.cpp:1267
#32 0x00007f85e5cb5b2c in QApplicationPrivate::notify_helper (this=0x1899c80, receiver=0x196f350, e=0x7ffdacdb21a0) at kernel/qapplication.cpp:3720
#33 0x00007f85e5cbb000 in QApplication::notify (this=0x7ffdacdb23e0, receiver=0x196f350, e=0x7ffdacdb21a0) at kernel/qapplication.cpp:3503
#34 0x00007f85e53abc2b in QCoreApplication::notifyInternal (this=0x7ffdacdb23e0, receiver=0x196f350, event=event@entry=0x7ffdacdb21a0) at kernel/qcoreapplication.cpp:935
#35 0x00007f85e5403ae5 in sendEvent (event=0x7ffdacdb21a0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:228
#36 QTimerInfoList::activateTimers (this=0x18cd518) at kernel/qtimerinfo_unix.cpp:635
#37 0x00007f85e54016a0 in QEventDispatcherUNIX::activateTimers (this=this@entry=0x18caeb0) at kernel/qeventdispatcher_unix.cpp:549
#38 0x00007f85e5402243 in QEventDispatcherUNIX::processEvents (this=0x18caeb0, flags=flags@entry=...) at kernel/qeventdispatcher_unix.cpp:611
#39 0x00007f85d31ba96d in QUnixEventDispatcherQPA::processEvents (this=<optimized out>, flags=...) at eventdispatchers/qunixeventdispatcher.cpp:62
#40 0x00007f85e53a93e2 in QEventLoop::exec (this=this@entry=0x7ffdacdb2300, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#41 0x00007f85e53b102c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#42 0x00007f85e56f031c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1510
#43 0x00007f85e5cb17a5 in QApplication::exec () at kernel/qapplication.cpp:2956
#44 0x00007f85e6e878c3 in kdemain (argc=1, argv=0x7ffdacdb2538) at ../main_x11.cpp:294
#45 0x00007f85e6ad9a40 in __libc_start_main (main=0x400790 <main(int, char**)>, argc=3, argv=0x7ffdacdb2538, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffdacdb2528) at libc-start.c:289
#46 0x00000000004007c9 in _start ()

Reported using DrKonqi