Application: kwin (4.10.2)
KDE Platform Version: 4.10.3
Qt Version: 4.8.2
Operating System: Linux 3.5.0-28-generic x86_64
Distribution: Ubuntu 12.04.2 LTS

-- Information about the crash:
- What I was doing when the application crashed:
When Kwin crashed, I was moving Audacity from one window to another.

The crash can be reproduced sometimes.

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f3eab1357c0 (LWP 2278))]

Thread 3 (Thread 0x7f3e87de8700 (LWP 2297)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f3ea71fd222 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f3ea71fd259 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f3ea679b764 in ?? () from /usr/lib/nvidia-current-updates/libGL.so.1
#4  0x00007f3e9e92fe9a in start_thread (arg=0x7f3e87de8700) at pthread_create.c:308
#5  0x00007f3eaa93dccd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f3e8c9d3700 (LWP 2724)):
#0  0x00007f3eaa937033 in select () at ../sysdeps/unix/syscall-template.S:82
#1  0x00007f3ea5c6e866 in qt_safe_select (nfds=15, fdread=0x7f3e88000af8, fdwrite=0x7f3e88000d90, fdexcept=0x7f3e88001028, orig_timeout=<optimized out>) at kernel/qcore_unix.cpp:83
#2  0x00007f3ea5c73cb2 in QEventDispatcherUNIXPrivate::doSelect (this=0x7f3e88000940, flags=..., timeout=0x0) at kernel/qeventdispatcher_unix.cpp:223
#3  0x00007f3ea5c741a3 in QEventDispatcherUNIX::processEvents (this=0x7f3e88000920, flags=...) at kernel/qeventdispatcher_unix.cpp:926
#4  0x00007f3ea5c40e62 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f3ea5c410b7 in QEventLoop::exec (this=0x7f3e8c9d2cd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f3ea5b40077 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f3ea5c20b6f in QInotifyFileSystemWatcherEngine::run (this=0x1d4b9e0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f3ea5b4309b in QThreadPrivate::start (arg=0x1d4b9e0) at thread/qthread_unix.cpp:307
#9  0x00007f3ea679b764 in ?? () from /usr/lib/nvidia-current-updates/libGL.so.1
#10 0x00007f3e9e92fe9a in start_thread (arg=0x7f3e8c9d3700) at pthread_create.c:308
#11 0x00007f3eaa93dccd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f3eab1357c0 (LWP 2278)):
[KCrash Handler]
#6  0x0000000000000000 in ?? ()
#7  0x00007f3ea5c54cb2 in QObject::property (this=0x3282570, name=0x7f3ea90edda1 "geometry") at kernel/qobject.cpp:3741
#8  0x00007f3ea90dc80d in KWin::EffectWindow::geometry (this=<optimized out>) at ../../../kwin/libkwineffects/kwineffects.cpp:662
#9  0x00007f3e8467aaf6 in setActive (active=<optimized out>, this=0x1937080) at ../../../kwin/effects/desktopgrid/desktopgrid.cpp:1051
#10 KWin::DesktopGridEffect::setActive (this=0x1937080, active=<optimized out>) at ../../../kwin/effects/desktopgrid/desktopgrid.cpp:1034
#11 0x00007f3e8467ba7c in KWin::DesktopGridEffect::windowInputMouseEvent (this=0x1937080, e=<optimized out>) at ../../../kwin/effects/desktopgrid/desktopgrid.cpp:646
#12 0x00007f3eaacea51f in KWin::EffectsHandlerImpl::checkInputWindowEvent (this=<optimized out>, e=0x7fff888f6e60) at ../../kwin/effects.cpp:1069
#13 0x00007f3eaac7e06b in KWin::Workspace::workspaceEvent (this=0x113fad0, e=0x7fff888f6e60) at ../../kwin/events.cpp:252
#14 0x00007f3eaac6fb08 in KWin::Application::x11EventFilter (this=0x7fff888f7130, e=0x7fff888f6e60) at ../../kwin/main.cpp:362
#15 0x00007f3ea5032aa5 in qt_x11EventFilter (ev=0x7fff888f6e60) at kernel/qapplication_x11.cpp:441
#16 qt_x11EventFilter (ev=0x7fff888f6e60) at kernel/qapplication_x11.cpp:429
#17 0x00007f3ea5041eb8 in QApplication::x11ProcessEvent (this=0x7fff888f7130, event=0x7fff888f6e60) at kernel/qapplication_x11.cpp:3444
#18 0x00007f3ea506caba in QEventDispatcherX11::processEvents (this=0xf04ad0, flags=...) at kernel/qeventdispatcher_x11.cpp:132
#19 0x00007f3ea5c40e62 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#20 0x00007f3ea5c410b7 in QEventLoop::exec (this=0x7fff888f70b0, flags=...) at kernel/qeventloop.cpp:204
#21 0x00007f3ea5c46407 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#22 0x00007f3eaac7217b in kdemain (argc=<optimized out>, argv=<optimized out>) at ../../kwin/main.cpp:537
#23 0x00007f3eaa86b76d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fff888f7828, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff888f7818) at libc-start.c:226
#24 0x0000000000400671 in _start ()

This bug may be a duplicate of or related to bug 311505.

Possible duplicates by query: bug 311505.

Reported using DrKonqi