Application: kwin (4.11.8)
KDE Platform Version: 4.12.4
Qt Version: 4.8.6
Operating System: Linux 3.14.2-200.fc20.x86_64 x86_64
Distribution (Platform): Fedora RPMs

-- Information about the crash:
- What I was doing when the application crashed:
Booted the system after updates applied.   
- Unusual behavior I noticed:
Restarting Kwin such as alt-shift-f12 causes crash every time.

-- Backtrace:
Application: KWin (kwin), signal: Aborted
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7ff84aaa1900 (LWP 5848))]

Thread 2 (Thread 0x7ff83fab2700 (LWP 5878)):
#0  0x00000039d180bd20 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x000000341ab8ef2b in QTWTF::TCMalloc_PageHeap::scavengerThread() () from /lib64/libQtScript.so.4
#2  0x000000341ab8ef69 in QTWTF::TCMalloc_PageHeap::runScavengerThread(void*) () from /lib64/libQtScript.so.4
#3  0x00000039d1807f33 in start_thread () from /lib64/libpthread.so.0
#4  0x00000039d10f4ded in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7ff84aaa1900 (LWP 5848)):
[KCrash Handler]
#5  0x00000039d1035c39 in raise () from /lib64/libc.so.6
#6  0x00000039d1037348 in abort () from /lib64/libc.so.6
#7  0x00000039d102eb96 in __assert_fail_base () from /lib64/libc.so.6
#8  0x00000039d102ec42 in __assert_fail () from /lib64/libc.so.6
#9  0x00007ff83d2965b5 in brw_get_graphics_reset_status () from /usr/lib64/dri/i965_dri.so
#10 0x00007ff83d0158b0 in _mesa_GetGraphicsResetStatusARB () from /usr/lib64/dri/i965_dri.so
#11 0x000000341d0e28b9 in KWin::SceneOpenGL::paint(QRegion, QList<KWin::Toplevel*>) () from /lib64/libkdeinit4_kwin.so
#12 0x000000341d0c65db in KWin::Compositor::performCompositing() () from /lib64/libkdeinit4_kwin.so
#13 0x000000341d0c799f in KWin::Compositor::slotCompositingOptionsInitialized() () from /lib64/libkdeinit4_kwin.so
#14 0x000000341d04c18d in KWin::Compositor::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) [clone .part.73] () from /lib64/libkdeinit4_kwin.so
#15 0x000000341199b938 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /lib64/libQtCore.so.4
#16 0x000000341186c840 in QFutureWatcherBase::event(QEvent*) () from /lib64/libQtCore.so.4
#17 0x0000003417fcaebc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQtGui.so.4
#18 0x0000003417fd1825 in QApplication::notify(QObject*, QEvent*) () from /lib64/libQtGui.so.4
#19 0x000000341464ab0a in KApplication::notify(QObject*, QEvent*) () from /lib64/libkdeui.so.5
#20 0x0000003411986ebd in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /lib64/libQtCore.so.4
#21 0x000000341198a0d5 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib64/libQtCore.so.4
#22 0x000000341806d52c in QEventDispatcherX11::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtGui.so.4
#23 0x000000341198595f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#24 0x0000003411985cad in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#25 0x000000341198b399 in QCoreApplication::exec() () from /lib64/libQtCore.so.4
#26 0x000000341d07e411 in kdemain () from /lib64/libkdeinit4_kwin.so
#27 0x00000039d1021d65 in __libc_start_main () from /lib64/libc.so.6
#28 0x0000000000400a01 in _start ()

The reporter indicates this bug may be a duplicate of or related to bug 333088.

Possible duplicates by query: bug 334237, bug 334219, bug 334117, bug 333088, bug 332970.

Reported using DrKonqi