Application: kwin (4.11.8)
KDE Platform Version: 4.12.4
Qt Version: 4.8.6
Operating System: Linux 3.14-1-amd64 x86_64
Distribution: Debian GNU/Linux unstable (sid)

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

 When starting, the effects do not work

- Unusual behavior I noticed:

to activate the effects, not work, the message appears bug

- Custom settings of the application:

The bug occurs when you enable desktop effects

The crash can be reproduced every time.

-- Backtrace:
Application: KWin (kwin), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fad8a845900 (LWP 5875))]

Thread 3 (Thread 0x7fad7ffff700 (LWP 5877)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x0000003e72f85b4b in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x0000003e72f85b89 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x0000003374008062 in start_thread (arg=0x7fad7ffff700) at pthread_create.c:312
#4  0x00000033734e5bfd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7fad84e92700 (LWP 16895)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x0000003e6847b784 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#2  0x0000003e6846f08a in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#3  0x0000003e6847b2bf in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#4  0x0000003374008062 in start_thread (arg=0x7fad84e92700) at pthread_create.c:312
#5  0x00000033734e5bfd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7fad8a845900 (LWP 5875)):
[KCrash Handler]
#5  0x00000033734353a9 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
#6  0x00000033734384c8 in __GI_abort () at abort.c:89
#7  0x000000337342e4c6 in __assert_fail_base (fmt=0x7fad89d03dce "%s%s%s:%u: %s%sLa declaraci\303\263n `%s' no se cumple.\n%n", assertion=assertion@entry=0x7facfe269b03 "brw->hw_ctx != ((void *)0)", file=file@entry=0x7facfe269ac8 "../../../../../../../src/mesa/drivers/dri/i965/brw_reset.c", line=line@entry=43, function=function@entry=0x7facfe269b20 "brw_get_graphics_reset_status") at assert.c:92
#8  0x000000337342e572 in __GI___assert_fail (assertion=0x7facfe269b03 "brw->hw_ctx != ((void *)0)", file=0x7facfe269ac8 "../../../../../../../src/mesa/drivers/dri/i965/brw_reset.c", line=43, function=0x7facfe269b20 "brw_get_graphics_reset_status") at assert.c:101
#9  0x00007facfe138c75 in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#10 0x00007facfdec03e0 in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#11 0x0000003e758dc9d9 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so
#12 0x0000003e758c1873 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so
#13 0x0000003e758c2b6f in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so
#14 0x0000003e7584b7d5 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so
#15 0x0000003e685916aa in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#16 0x0000003e6846baa8 in QFutureWatcherBase::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#17 0x0000003e6a1c86cc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#18 0x0000003e6a1cecfd in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#19 0x0000003e6b04076a in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#20 0x0000003e6857d41d in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#21 0x0000003e68580a7d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#22 0x0000003e6a266f3c in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#23 0x0000003e6857bfef in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#24 0x0000003e6857c2e5 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#25 0x0000003e68581ab9 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#26 0x0000003e7587b8d6 in kdemain () from /usr/lib/kde4/libkdeinit/libkdeinit4_kwin.so
#27 0x0000003373421b45 in __libc_start_main (main=0x4006d0, argc=1, argv=0x7fff310af468, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff310af458) at libc-start.c:287
#28 0x00000000004006fe in _start ()

Possible duplicates by query: bug 334117, bug 333638, bug 333215, bug 333088, bug 332970.

Reported using DrKonqi