Bug 355103

Application: kwin_x11 (5.4.2)

Qt Version: 5.4.2
Operating System: Linux 4.2.0-17-generic x86_64
Distribution: Ubuntu 15.10

-- Information about the crash:
- What I was doing when the application crashed:
attached hdmi monitor, it was on wrong side so i used system settings to switch sceen location. everything crashed, on reboot the bug report came up

-- 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 0x7f7899338880 (LWP 1313))]

Thread 3 (Thread 0x7f786ffff700 (LWP 1377)):
#0  0x00007f7898e1c743 in select () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f789746d90f in qt_safe_select (nfds=14, fdread=fdread@entry=0x7f7868000a98, fdwrite=fdwrite@entry=0x7f7868000d28, fdexcept=fdexcept@entry=0x7f7868000fb8, orig_timeout=orig_timeout@entry=0x0) at kernel/qcore_unix.cpp:75
#2  0x00007f789746f40e in QEventDispatcherUNIX::select (timeout=0x0, exceptfds=0x7f7868000fb8, writefds=0x7f7868000d28, readfds=0x7f7868000a98, nfds=<optimized out>, this=0x7f78680008e0) at kernel/qeventdispatcher_unix.cpp:320
#3  QEventDispatcherUNIXPrivate::doSelect (this=this@entry=0x7f7868000900, flags=..., flags@entry=..., timeout=timeout@entry=0x0) at kernel/qeventdispatcher_unix.cpp:196
#4  0x00007f789746f93e in QEventDispatcherUNIX::processEvents (this=0x7f78680008e0, flags=...) at kernel/qeventdispatcher_unix.cpp:607
#5  0x00007f789741875a in QEventLoop::exec (this=this@entry=0x7f786fffed20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f78972363d4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f7891da4f85 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f789723b2be in QThreadPrivate::start (arg=0x16d07c0) at thread/qthread_unix.cpp:337
#9  0x00007f789845e6aa in start_thread (arg=0x7f786ffff700) at pthread_create.c:333
#10 0x00007f7898e25eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f786e2fc700 (LWP 1388)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f78963cb114 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007f78963cb159 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007f789845e6aa in start_thread (arg=0x7f786e2fc700) at pthread_create.c:333
#4  0x00007f7898e25eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f7899338880 (LWP 1313)):
[KCrash Handler]
#6  __memcpy_sse2_unaligned () at ../sysdeps/x86_64/multiarch/memcpy-sse2-unaligned.S:35
#7  0x00007f7892c30856 in KWin::GLVertexBuffer::setData (this=this@entry=0x1649150, vertexCount=6, dim=dim@entry=2, vertices=0x1c31678, texcoords=texcoords@entry=0x0) at ../../libkwineffects/kwinglutils.cpp:2236
#8  0x00007f78989d68cd in KWin::SceneOpenGL2::doPaintBackground (this=<optimized out>, vertices=...) at ../scene_opengl.cpp:1129
#9  0x00007f78989dafe5 in KWin::SceneOpenGL::paintBackground (this=this@entry=0x15ee510, region=...) at ../scene_opengl.cpp:822
#10 0x00007f78989c48c5 in KWin::Scene::paintSimpleScreen (this=this@entry=0x15ee510, orig_mask=orig_mask@entry=8, region=...) at ../scene.cpp:371
#11 0x00007f78989d60a3 in KWin::SceneOpenGL2::paintSimpleScreen (this=this@entry=0x15ee510, mask=mask@entry=8, region=...) at ../scene_opengl.cpp:1095
#12 0x00007f78989bf6b4 in KWin::Scene::finalPaintScreen (this=0x15ee510, mask=mask@entry=8, region=..., data=...) at ../scene.cpp:201
#13 0x00007f78989f8e5f in KWin::EffectsHandlerImpl::paintScreen (this=0x15ca950, mask=mask@entry=8, region=..., data=...) at ../effects.cpp:415
#14 0x00007f78969d352f in KWin::Effect::paintScreen (this=this@entry=0x17c3e80, mask=mask@entry=8, region=..., data=...) at ../../libkwineffects/kwineffects.cpp:535
#15 0x00007f78989f8e0a in KWin::EffectsHandlerImpl::paintScreen (this=0x15ca950, mask=mask@entry=8, region=..., data=...) at ../effects.cpp:412
#16 0x00007f78969d352f in KWin::Effect::paintScreen (this=this@entry=0x17c7690, mask=mask@entry=8, region=..., data=...) at ../../libkwineffects/kwineffects.cpp:535
#17 0x00007f78989f8e0a in KWin::EffectsHandlerImpl::paintScreen (this=0x15ca950, mask=mask@entry=8, region=..., data=...) at ../effects.cpp:412
#18 0x00007f78969d352f in KWin::Effect::paintScreen (this=this@entry=0x16c78f0, mask=mask@entry=8, region=..., data=...) at ../../libkwineffects/kwineffects.cpp:535
#19 0x00007f78989f8e0a in KWin::EffectsHandlerImpl::paintScreen (this=0x15ca950, mask=8, region=..., data=...) at ../effects.cpp:412
#20 0x00007f78989bf32a in KWin::Scene::paintScreen (this=this@entry=0x15ee510, mask=mask@entry=0x7ffd4ec7adb0, damage=..., repaint=..., updateRegion=updateRegion@entry=0x7ffd4ec7ad80, validRegion=validRegion@entry=0x7ffd4ec7ad90) at ../scene.cpp:151
#21 0x00007f78989dba98 in KWin::SceneOpenGL::paint (this=0x15ee510, damage=..., toplevels=...) at ../scene_opengl.cpp:740
#22 0x00007f78989b71a3 in KWin::Compositor::performCompositing (this=0x1577670) at ../composite.cpp:712
#23 0x00007f789744c603 in QObject::event (this=0x1577670, e=<optimized out>) at kernel/qobject.cpp:1267
#24 0x00007f7897ce8b8c in QApplicationPrivate::notify_helper (this=this@entry=0x142ab00, receiver=receiver@entry=0x1577670, e=e@entry=0x7ffd4ec7b1d0) at kernel/qapplication.cpp:3720
#25 0x00007f7897cee230 in QApplication::notify (this=0x7ffd4ec7b400, receiver=0x1577670, e=0x7ffd4ec7b1d0) at kernel/qapplication.cpp:3503
#26 0x00007f789741af1b in QCoreApplication::notifyInternal (this=0x7ffd4ec7b400, receiver=0x1577670, event=event@entry=0x7ffd4ec7b1d0) at kernel/qcoreapplication.cpp:935
#27 0x00007f789747109d in QCoreApplication::sendEvent (event=0x7ffd4ec7b1d0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:228
#28 QTimerInfoList::activateTimers (this=0x1479538) at kernel/qtimerinfo_unix.cpp:635
#29 0x00007f789746ee40 in QEventDispatcherUNIX::activateTimers (this=this@entry=0x146edc0) at kernel/qeventdispatcher_unix.cpp:549
#30 0x00007f789746f8b6 in QEventDispatcherUNIX::processEvents (this=0x146edc0, flags=flags@entry=...) at kernel/qeventdispatcher_unix.cpp:611
#31 0x00007f788111505d in QUnixEventDispatcherQPA::processEvents (this=<optimized out>, flags=...) at eventdispatchers/qunixeventdispatcher.cpp:62
#32 0x00007f789741875a in QEventLoop::exec (this=this@entry=0x7ffd4ec7b320, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#33 0x00007f78974202cc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#34 0x00007f789773500c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1510
#35 0x00007f7897ce5025 in QApplication::exec () at kernel/qapplication.cpp:2956
#36 0x00007f78990ee4c4 in kdemain (argc=1, argv=0x7ffd4ec7b568) at ../main_x11.cpp:303
#37 0x00007f7898d3fa40 in __libc_start_main (main=0x4007a0 <main(int, char**)>, argc=3, argv=0x7ffd4ec7b568, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffd4ec7b558) at libc-start.c:289
#38 0x00000000004007d9 in _start ()

Possible duplicates by query: bug 352423, bug 350872, bug 350076, bug 348873, bug 345191.

Reported using DrKonqi