Application: kwin (4.11.20)
KDE Platform Version: 4.14.9
Qt Version: 4.8.6
Operating System: Linux 3.16.7-32-desktop x86_64
Distribution: "openSUSE 13.2 (Harlequin) (x86_64)"

-- Information about the crash:
Was looking at an application running in wine on one desktop, and switched to another desktop.  Got notice that kwin crashed.

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f3cf497e800 (LWP 2007))]

Thread 2 (Thread 0x7f3ccffff700 (LWP 2009)):
#0  0x00007f3cedfe303f in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f3cf33ad8cb in QTWTF::TCMalloc_PageHeap::scavengerThread() (this=0x7f3cf36abf00 <QTWTF::pageheap_memory>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007f3cf33ad909 in QTWTF::TCMalloc_PageHeap::runScavengerThread(void*) (context=<optimized out>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007f3cedfdf0a4 in start_thread (arg=0x7f3ccffff700) at pthread_create.c:309
#4  0x00007f3cf41ac00d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7f3cf497e800 (LWP 2007)):
[KCrash Handler]
#6  0x00007f3cee389788 in QObject::property(char const*) const (this=0x0, name=name@entry=0x7f3cf3c9db81 "geometry") at kernel/qobject.cpp:3781
#7  0x00007f3cf3c8ca32 in KWin::EffectWindow::geometry() const (this=this@entry=0x208ff70) at /usr/src/debug/kde-workspace-4.11.20/kwin/libkwineffects/kwineffects.cpp:690
#8  0x00007f3cccef69b6 in KWin::DesktopGridEffect::setActive(bool) (this=0x1a9fda0, active=<optimized out>) at /usr/src/debug/kde-workspace-4.11.20/kwin/effects/desktopgrid/desktopgrid.cpp:1054
#9  0x00007f3cccefa541 in KWin::DesktopGridEffect::windowInputMouseEvent(QEvent*) (this=<optimized out>, e=<optimized out>) at /usr/src/debug/kde-workspace-4.11.20/kwin/effects/desktopgrid/desktopgrid.cpp:646
#10 0x00007f3cf45612ab in KWin::EffectsHandlerImpl::checkInputWindowEvent(_XEvent*) (this=<optimized out>, e=0x7ffcca26c8d0) at /usr/src/debug/kde-workspace-4.11.20/kwin/effects.cpp:1247
#11 0x00007f3cf44f7c05 in KWin::Workspace::workspaceEvent(_XEvent*) (this=0x18813f0, e=e@entry=0x7ffcca26c8d0) at /usr/src/debug/kde-workspace-4.11.20/kwin/events.cpp:113
#12 0x00007f3cf44ec8f0 in KWin::Application::x11EventFilter(_XEvent*) (this=0x7ffcca26ccc0, e=0x7ffcca26c8d0) at /usr/src/debug/kde-workspace-4.11.20/kwin/main.cpp:422
#13 0x00007f3ced55b6fc in qt_x11EventFilter(XEvent*) (ev=0x7ffcca26c8d0) at kernel/qapplication_x11.cpp:436
#14 0x00007f3ced5691f9 in QApplication::x11ProcessEvent(_XEvent*) (this=0x7ffcca26ccc0, event=event@entry=0x7ffcca26c8d0) at kernel/qapplication_x11.cpp:3365
#15 0x00007f3ced590f30 in QEventDispatcherX11::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x1693100, flags=...) at kernel/qeventdispatcher_x11.cpp:132
#16 0x00007f3cee375e6f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffcca26cb30, flags=...) at kernel/qeventloop.cpp:149
#17 0x00007f3cee376165 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffcca26cb30, flags=...) at kernel/qeventloop.cpp:204
#18 0x00007f3cee37b5b9 in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1225
#19 0x00007f3ced4f1f3c in QApplication::exec() () at kernel/qapplication.cpp:3823
#20 0x00007f3cf44ed7a3 in kdemain(int, char**) (argc=1, argv=0x7ffcca26ce08) at /usr/src/debug/kde-workspace-4.11.20/kwin/main.cpp:597
#21 0x00007f3cf40e8b05 in __libc_start_main (main=0x400730 <main(int, char**)>, argc=1, argv=0x7ffcca26ce08, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffcca26cdf8) at libc-start.c:285
#22 0x000000000040075e in _start () at ../sysdeps/x86_64/start.S:122

Possible duplicates by query: bug 319875.

Reported using DrKonqi