Application: kwin (4.5.1 (KDE 4.5.1))
KDE Platform Version: 4.5.1 (KDE 4.5.1)
Qt Version: 4.7.0
Operating System: Linux 2.6.35-22-generic x86_64
Distribution: Ubuntu maverick (development branch)

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

I have activated the desktop effects. This worked, but every time I choose some additional effects from the list, kwin chrashes.

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fc070f47780 (LWP 1502))]

Thread 2 (Thread 0x7fc05313b710 (LWP 1503)):
#0  0x00007fc0707ba2c3 in select () at ../sysdeps/unix/syscall-template.S:82
#1  0x00007fc06d09476e in qt_safe_select (nfds=14, fdread=0x1651460, fdwrite=0x16516f8, fdexcept=0x1651990, orig_timeout=0x0) at kernel/qcore_unix.cpp:82
#2  0x00007fc06d099beb in QEventDispatcherUNIXPrivate::doSelect (this=0x16512a0, flags=<value optimized out>, timeout=<value optimized out>) at kernel/qeventdispatcher_unix.cpp:219
#3  0x00007fc06d09a81b in QEventDispatcherUNIX::processEvents (this=0x1650a70, flags=) at kernel/qeventdispatcher_unix.cpp:919
#4  0x00007fc06d069a02 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#5  0x00007fc06d069dec in QEventLoop::exec (this=0x7fc05313ad90, flags=) at kernel/qeventloop.cpp:201
#6  0x00007fc06cf742fd in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:490
#7  0x00007fc06d0495f8 in QInotifyFileSystemWatcherEngine::run (this=0x1650080) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fc06cf7727e in QThreadPrivate::start (arg=0x1650080) at thread/qthread_unix.cpp:266
#9  0x00007fc06ccec971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#10 0x00007fc0707c192d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fc070f47780 (LWP 1502)):
[KCrash Handler]
#6  0x00007fc06e54edd6 in ?? () from /usr/lib/mesa/libGL.so.1
#7  0x00007fc06e5281b4 in ?? () from /usr/lib/mesa/libGL.so.1
#8  0x00007fc070b24021 in KWin::SceneOpenGL::waitSync (this=<value optimized out>) at ../../kwin/scene_opengl.cpp:787
#9  0x00007fc070b28530 in KWin::SceneOpenGL::flushBuffer (this=0x167d010, mask=0, damage=) at ../../kwin/scene_opengl.cpp:836
#10 0x00007fc070b29477 in KWin::SceneOpenGL::paint (this=0x167d010, damage=<value optimized out>, toplevels=<value optimized out>) at ../../kwin/scene_opengl.cpp:767
#11 0x00007fc070b13287 in KWin::Workspace::performCompositing (this=<value optimized out>) at ../../kwin/composite.cpp:454
#12 0x00007fc070a947dd in KWin::Workspace::qt_metacall (this=0x147a670, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffba505ca0) at ./workspace.moc:583
#13 0x00007fc06d082b27 in QMetaObject::activate (sender=0x147ab38, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x7fffba505820) at kernel/qobject.cpp:3280
#14 0x00007fc06d07c8f9 in QObject::event (this=0x147ab38, e=0x0) at kernel/qobject.cpp:1183
#15 0x00007fc06c1b4fdc in QApplicationPrivate::notify_helper (this=0x13e1e30, receiver=0x147ab38, e=0x7fffba5063f0) at kernel/qapplication.cpp:4396
#16 0x00007fc06c1baaed in QApplication::notify (this=0x7fffba5067e0, receiver=0x147ab38, e=0x7fffba5063f0) at kernel/qapplication.cpp:4277
#17 0x00007fc0702bd156 in KApplication::notify (this=0x7fffba5067e0, receiver=0x147ab38, event=0x7fffba5063f0) at ../../kdeui/kernel/kapplication.cpp:310
#18 0x00007fc06d06acdc in QCoreApplication::notifyInternal (this=0x7fffba5067e0, receiver=0x147ab38, event=0x7fffba5063f0) at kernel/qcoreapplication.cpp:732
#19 0x00007fc06d09a6f2 in sendEvent (this=0x13e2840) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#20 QTimerInfoList::activateTimers (this=0x13e2840) at kernel/qeventdispatcher_unix.cpp:602
#21 0x00007fc06d09a82c in QEventDispatcherUNIX::processEvents (this=0x13bf6e0, flags=) at kernel/qeventdispatcher_unix.cpp:923
#22 0x00007fc06c268c4f in QEventDispatcherX11::processEvents (this=<value optimized out>, flags=) at kernel/qeventdispatcher_x11.cpp:152
#23 0x00007fc06d069a02 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#24 0x00007fc06d069dec in QEventLoop::exec (this=0x7fffba506720, flags=) at kernel/qeventloop.cpp:201
#25 0x00007fc06d06debb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#26 0x00007fc070ab0f7d in kdemain (argc=<value optimized out>, argv=<value optimized out>) at ../../kwin/main.cpp:531
#27 0x00007fc0706f9d8e in __libc_start_main (main=<value optimized out>, argc=<value optimized out>, ubp_av=<value optimized out>, init=<value optimized out>, fini=<value optimized out>, rtld_fini=<value optimized out>, stack_end=0x7fffba506de8) at libc-start.c:226
#28 0x0000000000400669 in _start ()

This bug may be a duplicate of or related to bug 241325.

Possible duplicates by query: bug 251467, bug 251170, bug 250844, bug 249159, bug 247408.

Reported using DrKonqi