Application: kwin (4.9.3)
KDE Platform Version: 4.9.3
Qt Version: 4.8.3
Operating System: Linux 3.5.0-20-generic x86_64
Distribution: Ubuntu 12.10

-- Information about the crash:
- What I was doing when the application crashed: I had assigned desktop grid overview to a hot corner at the top of the screeen.  I used it, removed a desktop, and kwin crashed.

-- 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 0x7f67fa1aa780 (LWP 1865))]

Thread 3 (Thread 0x7f67eb428700 (LWP 1871)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f680a14fcd7 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f680a14fd09 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f6802253e9a in start_thread (arg=0x7f67eb428700) at pthread_create.c:308
#4  0x00007f680d226cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f67f2f70700 (LWP 2319)):
#0  0x00007f680d220023 in select () at ../sysdeps/unix/syscall-template.S:82
#1  0x00007f6808ece023 in qt_safe_select (nfds=18, fdread=0x7f67ec000ac8, fdwrite=0x7f67ec000d60, fdexcept=0x7f67ec000ff8, orig_timeout=0x0) at kernel/qcore_unix.cpp:83
#2  0x00007f6808ed29e4 in QEventDispatcherUNIXPrivate::doSelect (this=this@entry=0x7f67ec000910, flags=..., timeout=0x0) at kernel/qeventdispatcher_unix.cpp:223
#3  0x00007f6808ed3572 in QEventDispatcherUNIX::processEvents (this=0x7f67ec0008f0, flags=...) at kernel/qeventdispatcher_unix.cpp:926
#4  0x00007f6808ea12bf in QEventLoop::processEvents (this=this@entry=0x7f67f2f6fdd0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f6808ea1548 in QEventLoop::exec (this=0x7f67f2f6fdd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f6808da2b10 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f6808e819af in QInotifyFileSystemWatcherEngine::run (this=0x14bc720) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f6808da5aec in QThreadPrivate::start (arg=0x14bc720) at thread/qthread_unix.cpp:338
#9  0x00007f6802253e9a in start_thread (arg=0x7f67f2f70700) at pthread_create.c:308
#10 0x00007f680d226cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f67fa1aa780 (LWP 1865)):
[KCrash Handler]
#6  0x00007f680d595791 in count (this=0x20e4a30) at /usr/include/qt4/QtCore/qvector.h:259
#7  KWin::WindowRules::checkSize (this=this@entry=0x20e4a30, arg=..., init=init@entry=false) at ../../kwin/rules.cpp:782
#8  0x00007f680d595843 in KWin::WindowRules::checkGeometry (this=0x20e4a30, rect=..., init=false) at ../../kwin/rules.cpp:778
#9  0x00007f680d584576 in KWin::Client::setGeometry (this=0x20e4850, x=0, y=0, w=1280, h=765, force=<optimized out>) at ../../kwin/geometry.cpp:1870
#10 0x00007f680d5e9e97 in KWin::TilingLayout::commit (this=<optimized out>) at ../../kwin/tiling/tilinglayout.cpp:222
#11 0x00007f680d5e90ab in createTile (c=0x22145a0, this=0x15e2790) at ../../kwin/tiling/tiling.cpp:148
#12 KWin::Tiling::createTile (this=0x15e2790, c=0x22145a0) at ../../kwin/tiling/tiling.cpp:126
#13 0x00007f6808eb7f5f in QMetaObject::activate (sender=0x15a5a10, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff89a5e5a0) at kernel/qobject.cpp:3547
#14 0x00007f680d52da12 in KWin::Workspace::clientAdded (this=this@entry=0x15a5a10, _t1=0x22145a0) at ./workspace.moc:488
#15 0x00007f680d5334e6 in KWin::Workspace::addClient (this=this@entry=0x15a5a10, c=c@entry=0x22145a0) at ../../kwin/workspace.cpp:601
#16 0x00007f680d533803 in KWin::Workspace::createClient (this=0x15a5a10, w=98566238, is_mapped=<optimized out>) at ../../kwin/workspace.cpp:574
#17 0x00007f680d560a00 in KWin::Workspace::workspaceEvent (this=0x15a5a10, e=0x7fff89a5ed00) at ../../kwin/events.cpp:359
#18 0x00007f680d552788 in KWin::Application::x11EventFilter (this=0x7fff89a5f260, e=0x7fff89a5ed00) at ../../kwin/main.cpp:362
#19 0x00007f68082b67bc in qt_x11EventFilter (ev=0x7fff89a5ed00) at kernel/qapplication_x11.cpp:441
#20 qt_x11EventFilter (ev=0x7fff89a5ed00) at kernel/qapplication_x11.cpp:429
#21 0x00007f68082c67f0 in QApplication::x11ProcessEvent (this=0x7fff89a5f260, event=0x7fff89a5ed00) at kernel/qapplication_x11.cpp:3449
#22 0x00007f68082ef9d9 in QEventDispatcherX11::processEvents (this=0x13f6ad0, flags=...) at kernel/qeventdispatcher_x11.cpp:132
#23 0x00007f6808ea12bf in QEventLoop::processEvents (this=this@entry=0x7fff89a5ef70, flags=...) at kernel/qeventloop.cpp:149
#24 0x00007f6808ea1548 in QEventLoop::exec (this=0x7fff89a5ef70, flags=...) at kernel/qeventloop.cpp:204
#25 0x00007f6808ea6708 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#26 0x00007f680d554e14 in kdemain (argc=1, argv=0x7fff89a5f3a8) at ../../kwin/main.cpp:545
#27 0x00007f680d15476d in __libc_start_main (main=0x4006a0 <main(int, char**)>, argc=1, ubp_av=0x7fff89a5f3a8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff89a5f398) at libc-start.c:226
#28 0x00000000004006d1 in _start ()

Possible duplicates by query: bug 311066.

Reported using DrKonqi