Application: kwin (4.10.3)
KDE Platform Version: 4.10.3
Qt Version: 4.8.4
Operating System: Linux 3.8.0-26-generic x86_64
Distribution: Ubuntu 13.04

-- Information about the crash:
- Custom settings of the application:
System Settings -> Task Switching -> Visualization -> Windows Wall which I have downloaded from GNHS

The crash can be reproduced every time.

-- 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 0x7ff10c04c7c0 (LWP 13065))]

Thread 3 (Thread 0x7ff0e6ffd700 (LWP 13070)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ff10815ee77 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007ff10815eea9 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007ff1076ff1b4 in ?? () from /usr/lib/nvidia-313-updates/libGL.so.1
#4  0x00007ff0ff3d0f8e in start_thread (arg=0x7ff0e6ffd700) at pthread_create.c:311
#5  0x00007ff10b86ee1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 2 (Thread 0x7ff0e5d57700 (LWP 13071)):
#0  0x00007ff10b867233 in select () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007ff106be34f3 in qt_safe_select (nfds=28, fdread=0x7ff0dc000ae8, fdwrite=0x7ff0dc000d80, fdexcept=0x7ff0dc001018, orig_timeout=0x0) at kernel/qcore_unix.cpp:83
#2  0x00007ff106be8499 in QEventDispatcherUNIXPrivate::doSelect (this=this@entry=0x7ff0dc000930, flags=..., timeout=0x0) at kernel/qeventdispatcher_unix.cpp:223
#3  0x00007ff106be8c82 in QEventDispatcherUNIX::processEvents (this=0x7ff0dc000910, flags=...) at kernel/qeventdispatcher_unix.cpp:937
#4  0x00007ff106bb638f in QEventLoop::processEvents (this=this@entry=0x7ff0e5d56cd0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007ff106bb6618 in QEventLoop::exec (this=this@entry=0x7ff0e5d56cd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007ff106ab8410 in QThread::exec (this=this@entry=0x16cec10) at thread/qthread.cpp:542
#7  0x00007ff106b97edf in QInotifyFileSystemWatcherEngine::run (this=0x16cec10) at io/qfilesystemwatcher_inotify.cpp:256
#8  0x00007ff106ababec in QThreadPrivate::start (arg=0x16cec10) at thread/qthread_unix.cpp:338
#9  0x00007ff1076ff1b4 in ?? () from /usr/lib/nvidia-313-updates/libGL.so.1
#10 0x00007ff0ff3d0f8e in start_thread (arg=0x7ff0e5d57700) at pthread_create.c:311
#11 0x00007ff10b86ee1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7ff10c04c7c0 (LWP 13065)):
[KCrash Handler]
#6  0x0000000000000090 in ?? ()
#7  0x00007ff10bba0385 in KWin::Workspace::constrainedStackingOrder (this=this@entry=0x14642c0) at ../../kwin/layers.cpp:558
#8  0x00007ff10bba0a4b in updateStackingOrder (propagate_new_clients=true, this=0x14642c0) at ../../kwin/layers.cpp:119
#9  KWin::Workspace::updateStackingOrder (this=0x14642c0, propagate_new_clients=<optimized out>) at ../../kwin/layers.cpp:112
#10 0x00007ff10bba0be0 in blockStackingUpdates (this=0x14642c0, block=<optimized out>) at ../../kwin/layers.cpp:665
#11 KWin::Workspace::blockStackingUpdates (this=this@entry=0x14642c0, block=block@entry=false) at ../../kwin/layers.cpp:657
#12 0x00007ff10bb94a2b in ~StackingUpdatesBlocker (this=<synthetic pointer>, __in_chrg=<optimized out>) at ../../kwin/workspace.h:877
#13 KWin::Client::releaseWindow (this=this@entry=0x1d67020, on_shutdown=on_shutdown@entry=false) at ../../kwin/client.cpp:318
#14 0x00007ff10bbad765 in KWin::Client::unmapNotifyEvent (this=this@entry=0x1d67020, e=e@entry=0x7fff41673da0) at ../../kwin/events.cpp:730
#15 0x00007ff10bbaf86b in KWin::Client::windowEvent (this=0x1d67020, e=e@entry=0x7fff41673da0) at ../../kwin/events.cpp:586
#16 0x00007ff10bbb0ad1 in KWin::Workspace::workspaceEvent (this=0x14642c0, e=e@entry=0x7fff41673da0) at ../../kwin/events.cpp:297
#17 0x00007ff10bba5588 in KWin::Application::x11EventFilter (this=0x7fff41674300, e=0x7fff41673da0) at ../../kwin/main.cpp:362
#18 0x00007ff105fc90cc in qt_x11EventFilter (ev=0x7fff41673da0) at kernel/qapplication_x11.cpp:441
#19 qt_x11EventFilter (ev=0x7fff41673da0) at kernel/qapplication_x11.cpp:429
#20 0x00007ff105fd7170 in QApplication::x11ProcessEvent (this=0x7fff41674300, event=event@entry=0x7fff41673da0) at kernel/qapplication_x11.cpp:3458
#21 0x00007ff106003b39 in QEventDispatcherX11::processEvents (this=0x1256ad0, flags=...) at kernel/qeventdispatcher_x11.cpp:132
#22 0x00007ff106bb638f in QEventLoop::processEvents (this=this@entry=0x7fff41674010, flags=...) at kernel/qeventloop.cpp:149
#23 0x00007ff106bb6618 in QEventLoop::exec (this=this@entry=0x7fff41674010, flags=...) at kernel/qeventloop.cpp:204
#24 0x00007ff106bbbcf6 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#25 0x00007ff105f5bffc in QApplication::exec () at kernel/qapplication.cpp:3828
#26 0x00007ff10bba504a in kdemain (argc=2, argv=0x7fff41674448) at ../../kwin/main.cpp:537
#27 0x00007ff10b796ea5 in __libc_start_main (main=0x4006d0 <main(int, char**)>, argc=2, ubp_av=0x7fff41674448, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff41674438) at libc-start.c:260
#28 0x0000000000400701 in _start ()

Possible duplicates by query: bug 320349, bug 319927, bug 319848, bug 319766, bug 319272.

Reported using DrKonqi