Application: kwin (4.6.2 (4.6.2))
KDE Platform Version: 4.6.2 (4.6.2)
Qt Version: 4.7.2
Operating System: Linux 2.6.38-11-generic-pae i686
Distribution: Ubuntu 11.04

-- Information about the crash:
- What I was doing when the application crashed: closing acrobat reader

- Unusual behavior I noticed:only applications open at the same time: ktorrent, jdownloader, thunderbird, skype, konsole.

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
[Current thread is 1 (Thread 0xb291f720 (LWP 1536))]

Thread 3 (Thread 0xae880b70 (LWP 1558)):
#0  0xb3869d41 in clock_gettime (clock_id=1, tp=0xae880050) at ../sysdeps/unix/clock_gettime.c:116
#1  0xb64ecdd8 in do_gettime () at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0xb65ba525 in updateCurrentTime (this=0x8628df8, flags=..., timeout=0x0) at kernel/qeventdispatcher_unix.cpp:339
#4  QEventDispatcherUNIXPrivate::doSelect (this=0x8628df8, flags=..., timeout=0x0) at kernel/qeventdispatcher_unix.cpp:182
#5  0xb65bb326 in QEventDispatcherUNIX::processEvents (this=0x862dc58, flags=...) at kernel/qeventdispatcher_unix.cpp:919
#6  0xb658a289 in QEventLoop::processEvents (this=0xae880280, flags=...) at kernel/qeventloop.cpp:149
#7  0xb658a522 in QEventLoop::exec (this=0xae880280, flags=...) at kernel/qeventloop.cpp:201
#8  0xb64942a0 in QThread::exec (this=0x85e44b8) at thread/qthread.cpp:492
#9  0xb656bfdb in QInotifyFileSystemWatcherEngine::run (this=0x85e44b8) at io/qfilesystemwatcher_inotify.cpp:248
#10 0xb6496da2 in QThreadPrivate::start (arg=0x85e44b8) at thread/qthread_unix.cpp:320
#11 0xb3927e99 in start_thread (arg=0xae880b70) at pthread_create.c:304
#12 0xb768973e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 2 (Thread 0xadeffb70 (LWP 1559)):
#0  0xb7848424 in __kernel_vsyscall ()
#1  0xb392c48c in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:169
#2  0xb76973fd in __pthread_cond_wait (cond=0xb6f2e2b0, mutex=0xb6f2e298) at forward.c:139
#3  0xb6e15817 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0xb6f291c0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#4  0xb6e15851 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0xb6f291c0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#5  0xb3927e99 in start_thread (arg=0xadeffb70) at pthread_create.c:304
#6  0xb768973e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 1 (Thread 0xb291f720 (LWP 1536)):
[KCrash Handler]
#7  KWin::CloseWindowView::hide (this=0x0) at ../../../kwin/effects/presentwindows/presentwindows.cpp:2096
#8  0xaf96d246 in KWin::PresentWindowsEffect::setHighlightedWindow (this=0x8549f90, w=0x0) at ../../../kwin/effects/presentwindows/presentwindows.cpp:1776
#9  0xaf9790d4 in KWin::PresentWindowsEffect::windowClosed (this=0x8549f90, w=0x8429a40) at ../../../kwin/effects/presentwindows/presentwindows.cpp:424
#10 0xb7811504 in KWin::EffectsHandlerImpl::windowClosed (this=0x84caff0, c=0x8429a40) at ../../kwin/effects.cpp:322
#11 0xb776fe5b in KWin::Client::releaseWindow (this=0x8983bd0, on_shutdown=false) at ../../kwin/client.cpp:238
#12 0xb779e11d in KWin::Client::unmapNotifyEvent (this=0x8983bd0, e=0xbfae45fc) at ../../kwin/events.cpp:809
#13 0xb77a1ccc in KWin::Client::windowEvent (this=0x8983bd0, e=0xbfae45fc) at ../../kwin/events.cpp:655
#14 0xb77a1f7c in KWin::Workspace::workspaceEvent (this=0x84a37b0, e=0xbfae45fc) at ../../kwin/events.cpp:309
#15 0xb777bb02 in KWin::Application::x11EventFilter (this=0xbfae47e4, e=0xbfae45fc) at ../../kwin/main.cpp:367
#16 0xb5b5ae14 in qt_x11EventFilter (ev=0xbfae45fc) at kernel/qapplication_x11.cpp:440
#17 0xb5b6c887 in QApplication::x11ProcessEvent (this=0xbfae47e4, event=0xbfae45fc) at kernel/qapplication_x11.cpp:3392
#18 0xb5b9a150 in QEventDispatcherX11::processEvents (this=0x83aba90, flags=...) at kernel/qeventdispatcher_x11.cpp:132
#19 0xb658a289 in QEventLoop::processEvents (this=0xbfae4724, flags=...) at kernel/qeventloop.cpp:149
#20 0xb658a522 in QEventLoop::exec (this=0xbfae4724, flags=...) at kernel/qeventloop.cpp:201
#21 0xb658eecc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#22 0xb5ae08e7 in QApplication::exec () at kernel/qapplication.cpp:3736
#23 0xb777e5b2 in kdemain (argc=3, argv=0xbfae4a64) at ../../kwin/main.cpp:542
#24 0x080485bb in main (argc=3, argv=0xbfae4a64) at kwin_dummy.cpp:3

Possible duplicates by query: bug 275099, bug 273279, bug 271087, bug 270872, bug 269270.

Reported using DrKonqi