Application: kwin (4.11.9)
KDE Platform Version: 4.11.5
Qt Version: 4.8.5
Operating System: Linux 3.11.10-7-desktop x86_64
Distribution: "openSUSE 13.1 (Bottle) (x86_64)"

-- Information about the crash:
trying to set desktop, activity and position settings for different applications.

The crash can be reproduced sometimes.

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fa19a0f4880 (LWP 24682))]

Thread 2 (Thread 0x7fa178f47700 (LWP 24706)):
#0  0x00007fa19383c0af in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fa198aa88cb in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x7fa198da6f00 <QTWTF::pageheap_memory>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007fa198aa8909 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007fa1938380db in start_thread () from /lib64/libpthread.so.0
#4  0x00007fa1998b790d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7fa19a0f4880 (LWP 24682)):
[KCrash Handler]
#6  0x0000000100000011 in ?? ()
#7  0x00007fa1995c1126 in KDecorationPlugins::destroyPreviousPlugin (this=this@entry=0x2443bf0) at /usr/src/debug/kde-workspace-4.11.9/kwin/libkdecorations/kdecoration_plugins_p.cpp:277
#8  0x00007fa199bdefc4 in KWin::Workspace::slotReconfigure (this=0x248f9a0) at /usr/src/debug/kde-workspace-4.11.9/kwin/workspace.cpp:820
#9  0x00007fa199bdf25d in KWin::Workspace::qt_static_metacall (_o=0x248f9a0, _id=1, _a=0x27d4c40, _c=<optimized out>) at /usr/src/debug/kde-workspace-4.11.9/build/kwin/workspace.moc:271
#10 0x00007fa193be4d68 in QMetaObject::activate (sender=0x248fad0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3556
#11 0x00007fa193be8f31 in QObject::event (this=0x248fad0, e=<optimized out>) at kernel/qobject.cpp:1165
#12 0x00007fa192d4d8ac in QApplicationPrivate::notify_helper (this=this@entry=0x22fd810, receiver=receiver@entry=0x248fad0, e=e@entry=0x7fff90acff00) at kernel/qapplication.cpp:4562
#13 0x00007fa192d53e70 in QApplication::notify (this=this@entry=0x7fff90ad03d0, receiver=receiver@entry=0x248fad0, e=e@entry=0x7fff90acff00) at kernel/qapplication.cpp:4348
#14 0x00007fa1984f518a in KApplication::notify (this=0x7fff90ad03d0, receiver=0x248fad0, event=0x7fff90acff00) at /usr/src/debug/kdelibs-4.11.5/kdeui/kernel/kapplication.cpp:311
#15 0x00007fa193bd10ad in QCoreApplication::notifyInternal (this=0x7fff90ad03d0, receiver=0x248fad0, event=0x7fff90acff00) at kernel/qcoreapplication.cpp:949
#16 0x00007fa193c0083c in sendEvent (event=<optimized out>, receiver=<optimized out>) at kernel/qcoreapplication.h:231
#17 QTimerInfoList::activateTimers (this=0x22fe278) at kernel/qeventdispatcher_unix.cpp:636
#18 0x00007fa193c00ef0 in QEventDispatcherUNIX::activateTimers (this=this@entry=0x2286a70) at kernel/qeventdispatcher_unix.cpp:893
#19 0x00007fa193c01860 in QEventDispatcherUNIX::processEvents (this=this@entry=0x2286a70, flags=...) at kernel/qeventdispatcher_unix.cpp:955
#20 0x00007fa192deb256 in QEventDispatcherX11::processEvents (this=0x2286a70, flags=...) at kernel/qeventdispatcher_x11.cpp:152
#21 0x00007fa193bcfd0f in QEventLoop::processEvents (this=this@entry=0x7fff90ad0240, flags=...) at kernel/qeventloop.cpp:149
#22 0x00007fa193bd0005 in QEventLoop::exec (this=this@entry=0x7fff90ad0240, flags=...) at kernel/qeventloop.cpp:204
#23 0x00007fa193bd513b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1221
#24 0x00007fa192d4c06c in QApplication::exec () at kernel/qapplication.cpp:3823
#25 0x00007fa199bff186 in kdemain (argc=3, argv=0x7fff90ad0518) at /usr/src/debug/kde-workspace-4.11.9/kwin/main.cpp:597
#26 0x00007fa1997f1be5 in __libc_start_main () from /lib64/libc.so.6
#27 0x0000000000400761 in _start () at ../sysdeps/x86_64/start.S:122

Possible duplicates by query: bug 329501.

Reported using DrKonqi