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 2.6.38-8-generic x86_64
Distribution: Ubuntu 11.04

-- Information about the crash:
- What I was doing when the application crashed:
Upon opening libreoffice document it froze and when I kill it the Kwin krashed.

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f9483c577a0 (LWP 5323))]

Thread 3 (Thread 0x7f94625ed700 (LWP 5328)):
#0  0xffffffffff60017b in ?? ()
#1  0x00007f94625ecbd0 in ?? ()
#2  0x00007fffff7ff7b2 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 2 (Thread 0x7f9461dec700 (LWP 5329)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f948230b2a2 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x7f9482624180) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007f948230b2d9 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0x7f9482632254) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007f9479e87d8c in start_thread (arg=0x7f9461dec700) at pthread_create.c:304
#4  0x00007f94834ac04d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f9483c577a0 (LWP 5323)):
[KCrash Handler]
#6  QProcess::setProcessState (this=0x16d6ee0, state=QProcess::NotRunning) at io/qprocess.cpp:1753
#7  0x00007f947f81a24f in QProcessPrivate::cleanup (this=<value optimized out>) at io/qprocess.cpp:781
#8  0x00007f947f81ef89 in QProcessPrivate::_q_processDied (this=0x14d1490) at io/qprocess.cpp:1041
#9  0x00007f947f81f099 in QProcess::qt_metacall (this=0x1667d90, _c=QMetaObject::InvokeMetaMethod, _id=13, _a=0x7fffff634900) at .moc/release-shared/moc_qprocess.cpp:115
#10 0x00007f947f8905f8 in QMetaObject::activate (sender=0x10dee20, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x7fffff634900) at kernel/qobject.cpp:3287
#11 0x00007f947f8d7b7e in QSocketNotifier::activated (this=<value optimized out>, _t1=27) at .moc/release-shared/moc_qsocketnotifier.cpp:89
#12 0x00007f947f895f4b in QSocketNotifier::event (this=0x10dee20, e=0x7fffff634f90) at kernel/qsocketnotifier.cpp:317
#13 0x00007f947ec3c9e4 in QApplicationPrivate::notify_helper (this=0xacef10, receiver=0x10dee20, e=0x7fffff634f90) at kernel/qapplication.cpp:4462
#14 0x00007f947ec413aa in QApplication::notify (this=<value optimized out>, receiver=0x10dee20, e=0x7fffff634f90) at kernel/qapplication.cpp:4341
#15 0x00007f9482fa7866 in KApplication::notify (this=0x7fffff6354c0, receiver=0x10dee20, event=0x7fffff634f90) at ../../kdeui/kernel/kapplication.cpp:311
#16 0x00007f947f87b49c in QCoreApplication::notifyInternal (this=0x7fffff6354c0, receiver=0x10dee20, event=0x7fffff634f90) at kernel/qcoreapplication.cpp:731
#17 0x00007f947f8a76bb in sendEvent (this=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#18 QEventDispatcherUNIX::activateSocketNotifiers (this=<value optimized out>) at kernel/qeventdispatcher_unix.cpp:877
#19 0x00007f947f8a85b1 in QEventDispatcherUNIXPrivate::doSelect (this=<value optimized out>, flags=..., timeout=0x7fff00000000) at kernel/qeventdispatcher_unix.cpp:305
#20 0x00007f947f8a904a in QEventDispatcherUNIX::processEvents (this=0xa73340, flags=...) at kernel/qeventdispatcher_unix.cpp:919
#21 0x00007f947ece4c0c in QEventDispatcherX11::processEvents (this=0xa73340, flags=...) at kernel/qeventdispatcher_x11.cpp:152
#22 0x00007f947f87a882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#23 0x00007f947f87aabc in QEventLoop::exec (this=0x7fffff635400, flags=...) at kernel/qeventloop.cpp:201
#24 0x00007f947f87eecb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#25 0x00007f94837b31ec in kdemain (argc=<value optimized out>, argv=0x7fffff635b58) at ../../kwin/main.cpp:542
#26 0x00007f94833e4eff in __libc_start_main (main=0x400740 <main(int, char**)>, argc=3, ubp_av=0x7fffff635b58, init=<value optimized out>, fini=<value optimized out>, rtld_fini=<value optimized out>, stack_end=0x7fffff635b48) at libc-start.c:226
#27 0x0000000000400669 in _start ()

Possible duplicates by query: bug 276367, bug 264657, bug 256708, bug 251951, bug 248992.

Reported using DrKonqi