Application: kwin (4.6.00 (4.6.0))
KDE Platform Version: 4.6.00 (4.6.0)
Qt Version: 4.7.0
Operating System: Linux 2.6.35-25-generic i686
Distribution: Ubuntu 10.10

-- Information about the crash:
- What I was doing when the application crashed:
I had several files open in acrobat reader, and previews of the files opened in acrobat were shown randomly on my screen. Changing workspace or switching to console and back didn't help, so Itried to suspend and reactivate the desktop effects. That helped, but crashed kwin.

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
[Current thread is 1 (Thread 0xb78c5720 (LWP 2140))]

Thread 3 (Thread 0xb382db70 (LWP 2148)):
#0  0x00eb4131 in ?? () from /lib/libc.so.6
#1  0x00e9f37c in select () from /lib/libc.so.6
#2  0x03aad872 in qt_safe_select (nfds=17, fdread=0x9d97f40, fdwrite=0x9d98154, fdexcept=0x9d98368, orig_timeout=0x0) at kernel/qcore_unix.cpp:82
#3  0x03ab2329 in QEventDispatcherUNIX::select (this=0x9b48858, nfds=17, readfds=0x9d97f40, writefds=0x9d98154, exceptfds=0x9d98368, timeout=0x0) at kernel/qeventdispatcher_unix.cpp:632
#4  0x03ab2eac in QEventDispatcherUNIXPrivate::doSelect (this=0x9d97e48, flags=..., timeout=0x0) at kernel/qeventdispatcher_unix.cpp:219
#5  0x03ab3c25 in QEventDispatcherUNIX::processEvents (this=0x9b48858, flags=...) at kernel/qeventdispatcher_unix.cpp:919
#6  0x03a80609 in QEventLoop::processEvents (this=0xb382d280, flags=) at kernel/qeventloop.cpp:149
#7  0x03a80a8a in QEventLoop::exec (this=0xb382d280, flags=...) at kernel/qeventloop.cpp:201
#8  0x0397cb7e in QThread::exec (this=0x9c9d0c8) at thread/qthread.cpp:490
#9  0x03a5f35b in QInotifyFileSystemWatcherEngine::run (this=0x9c9d0c8) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x0397fdf9 in QThreadPrivate::start (arg=0x9c9d0c8) at thread/qthread_unix.cpp:266
#11 0x00d5bcc9 in start_thread () from /lib/libpthread.so.0
#12 0x00ea669e in clone () from /lib/libc.so.6

Thread 2 (Thread 0xb3024b70 (LWP 2149)):
#0  0x00230416 in __kernel_vsyscall ()
#1  0x00d604dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0x00eb3d9d in pthread_cond_wait () from /lib/libc.so.6
#3  0x010b9877 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x11b81a0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#4  0x010b98c1 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0x11b81a0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#5  0x00d5bcc9 in start_thread () from /lib/libpthread.so.0
#6  0x00ea669e in clone () from /lib/libc.so.6

Thread 1 (Thread 0xb78c5720 (LWP 2140)):
[KCrash Handler]
#7  ref (this=0x95db900, desktop=2, areas=) at /usr/include/qt4/QtCore/qatomic_i386.h:120
#8  QVector (this=0x95db900, desktop=2, areas=) at /usr/include/qt4/QtCore/qvector.h:118
#9  QForeachContainer (this=0x95db900, desktop=2, areas=) at /usr/include/qt4/QtCore/qglobal.h:2242
#10 KWin::Workspace::previousRestrictedMoveArea (this=0x95db900, desktop=2, areas=) at ../../kwin/geometry.cpp:331
#11 0x00c305e8 in KWin::Client::checkWorkspacePosition (this=0xa2e0058) at ../../kwin/geometry.cpp:1144
#12 0x00bbd70f in KWin::Client::updateDecoration (this=0xa2e0058, check_workspace_pos=true, force=true) at ../../kwin/client.cpp:378
#13 0x00baafed in KWin::Workspace::slotReconfigure (this=0x95db900) at ../../kwin/workspace.cpp:1121
#14 0x00bb3a40 in KWin::Workspace::qt_metacall (this=0x95db900, _c=QMetaObject::InvokeMetaMethod, _id=142, _a=0xbfa131cc) at ./workspace.moc:551
#15 0x03a878ca in QMetaObject::metacall (object=0x95db900, cl=157137152, idx=142, argv=0xbfa131cc) at kernel/qmetaobject.cpp:237
#16 0x03a9a6ad in QMetaObject::activate (sender=0x95dbacc, m=0x3bb45a4, local_signal_index=0, argv=0x20) at kernel/qobject.cpp:3280
#17 0x03aec1e7 in QTimer::timeout (this=0x95dbacc) at .moc/release-shared/moc_qtimer.cpp:134
#18 0x03aa01ce in QTimer::timerEvent (this=0x95dbacc, e=0xbfa13720) at kernel/qtimer.cpp:271
#19 0x03a94504 in QObject::event (this=0x95dbacc, e=0x94f81b8) at kernel/qobject.cpp:1183
#20 0x012e9fdc in QApplicationPrivate::notify_helper (this=0x94ebac8, receiver=0x95dbacc, e=0xbfa13720) at kernel/qapplication.cpp:4396
#21 0x012f004e in QApplication::notify (this=0xbfa13a44, receiver=0x95dbacc, e=0xbfa13720) at kernel/qapplication.cpp:3798
#22 0x00965f7a in KApplication::notify (this=0xbfa13a44, receiver=0x95dbacc, event=0xbfa13720) at ../../kdeui/kernel/kapplication.cpp:311
#23 0x00bcfd0f in KWin::Application::notify (this=0xbfa13a44, o=0x95dbacc, e=0xbfa13720) at ../../kwin/main.cpp:376
#24 0x03a81b3b in QCoreApplication::notifyInternal (this=0xbfa13a44, receiver=0x95dbacc, event=0xbfa13720) at kernel/qcoreapplication.cpp:732
#25 0x03ab3ad6 in sendEvent (this=0x94ec250) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#26 QTimerInfoList::activateTimers (this=0x94ec250) at kernel/qeventdispatcher_unix.cpp:602
#27 0x03ab3c37 in QEventDispatcherUNIX::processEvents (this=0x94cdb88, flags=...) at kernel/qeventdispatcher_unix.cpp:923
#28 0x013ad0d2 in QEventDispatcherX11::processEvents (this=0x94cdb88, flags=...) at kernel/qeventdispatcher_x11.cpp:152
#29 0x03a80609 in QEventLoop::processEvents (this=0xbfa13974, flags=) at kernel/qeventloop.cpp:149
#30 0x03a80a8a in QEventLoop::exec (this=0xbfa13974, flags=...) at kernel/qeventloop.cpp:201
#31 0x03a8500f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#32 0x012e8e07 in QApplication::exec () at kernel/qapplication.cpp:3672
#33 0x00bd2d00 in kdemain (argc=1, argv=0xbfa13cc4) at ../../kwin/main.cpp:542
#34 0x080485ab in main (argc=1, argv=0xbfa13cc4) at kwin_dummy.cpp:3

Possible duplicates by query: bug 258964, bug 253898, bug 250984, bug 247080, bug 246619.

Reported using DrKonqi