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 10.10

-- Information about the crash:
- Custom settings of the application:
I had disabled the window border of Google Chrome before, through Special Application Settings. When i noticed that no border was shown on a Gmail popup window (containing an email message) i wanted to enable the border on this window. Then Kwin chrashed.

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f097cd9a780 (LWP 1651))]

Thread 2 (Thread 0x7f095da01710 (LWP 1675)):
#0  0x00007f097c6012c3 in select () at ../sysdeps/unix/syscall-template.S:82
#1  0x00007f0978edb76e in qt_safe_select (nfds=18, fdread=0x2905960, fdwrite=0x2905bf8, fdexcept=0x2905e90, orig_timeout=0x0) at kernel/qcore_unix.cpp:82
#2  0x00007f0978ee0beb in QEventDispatcherUNIXPrivate::doSelect (this=0x29057a0, flags=<value optimized out>, timeout=<value optimized out>) at kernel/qeventdispatcher_unix.cpp:219
#3  0x00007f0978ee181b in QEventDispatcherUNIX::processEvents (this=0x28f4fb0, flags=) at kernel/qeventdispatcher_unix.cpp:919
#4  0x00007f0978eb0a02 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#5  0x00007f0978eb0dec in QEventLoop::exec (this=0x7f095da00d90, flags=) at kernel/qeventloop.cpp:201
#6  0x00007f0978dbb2fd in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:490
#7  0x00007f0978e905f8 in QInotifyFileSystemWatcherEngine::run (this=0x29046e0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f0978dbe27e in QThreadPrivate::start (arg=0x29046e0) at thread/qthread_unix.cpp:266
#9  0x00007f0978b33971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#10 0x00007f097c60892d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f097cd9a780 (LWP 1651)):
[KCrash Handler]
#6  detach (this=0x0, index=0, pos=...) at /usr/include/qt4/QtCore/qlist.h:126
#7  operator[] (this=0x0, index=0, pos=...) at /usr/include/qt4/QtCore/qlist.h:464
#8  KWin::ClientGroup::displayClientMenu (this=0x0, index=0, pos=...) at ../../kwin/clientgroup.cpp:245
#9  0x00007f0964defe39 in Oxygen::Client::mousePressEvent (this=0x5b544d0, event=0x7fff4c8e5260) at ../../../../kwin/clients/oxygen/oxygenclient.cpp:1484
#10 0x00007f0964df0080 in Oxygen::Client::eventFilter (this=0x5b544d0, object=0x574dc60, event=0x7fff4c8e5260) at ../../../../kwin/clients/oxygen/oxygenclient.cpp:1275
#11 0x00007f0978eb1507 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<value optimized out>, receiver=0x574dc60, event=0x7fff4c8e5260) at kernel/qcoreapplication.cpp:847
#12 0x00007f0977ffbfac in QApplicationPrivate::notify_helper (this=0x1a71f30, receiver=0x574dc60, e=0x7fff4c8e5260) at kernel/qapplication.cpp:4392
#13 0x00007f097800230e in QApplication::notify (this=0x7fff4c8e5dd0, receiver=0x574dc60, e=0x7fff4c8e5260) at kernel/qapplication.cpp:3959
#14 0x00007f097c104156 in KApplication::notify (this=0x7fff4c8e5dd0, receiver=0x574dc60, event=0x7fff4c8e5260) at ../../kdeui/kernel/kapplication.cpp:310
#15 0x00007f0978eb1cdc in QCoreApplication::notifyInternal (this=0x7fff4c8e5dd0, receiver=0x574dc60, event=0x7fff4c8e5260) at kernel/qcoreapplication.cpp:732
#16 0x00007f0978000dbe in sendEvent (receiver=0x574dc60, event=0x7fff4c8e5260, alienWidget=0x0, nativeWidget=0x574dc60, buttonDown=<value optimized out>, lastMouseReceiver=<value optimized out>, spontaneous=true) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#17 QApplicationPrivate::sendMouseEvent (receiver=0x574dc60, event=0x7fff4c8e5260, alienWidget=0x0, nativeWidget=0x574dc60, buttonDown=<value optimized out>, lastMouseReceiver=<value optimized out>, spontaneous=true) at kernel/qapplication.cpp:3058
#18 0x00007f0978084345 in QETWidget::translateMouseEvent (this=0x574dc60, event=<value optimized out>) at kernel/qapplication_x11.cpp:4403
#19 0x00007f0978082c5c in QApplication::x11ProcessEvent (this=<value optimized out>, event=0x7fff4c8e5b90) at kernel/qapplication_x11.cpp:3536
#20 0x00007f09780afb6f in QEventDispatcherX11::processEvents (this=<value optimized out>, flags=) at kernel/qeventdispatcher_x11.cpp:132
#21 0x00007f0978eb0a02 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#22 0x00007f0978eb0dec in QEventLoop::exec (this=0x7fff4c8e5d10, flags=) at kernel/qeventloop.cpp:201
#23 0x00007f0978eb4ebb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#24 0x00007f097c8f7f9d in kdemain (argc=<value optimized out>, argv=<value optimized out>) at ../../kwin/main.cpp:531
#25 0x00007f097c540d8e 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=0x7fff4c8e63d8) at libc-start.c:226
#26 0x0000000000400669 in _start ()

Possible duplicates by query: bug 251388, bug 237045, bug 235870, bug 222813.

Reported using DrKonqi