Application: kwin (4.11.3)
KDE Platform Version: 4.11.3
Qt Version: 4.8.5
Operating System: Linux 3.11.6-4-desktop x86_64
Distribution: "openSUSE 13.1 (Bottle) (x86_64)"

-- Information about the crash:
- What I was doing when the application crashed:
When KWin crashed, I was changing my color theme. It was right after I started my computer. It happened to me a few other times before. When I tried to apply, none of my windows were clickable or usable or whatsoever (but I could still move my pointer around), so I waited, then got bored and went into console mode and back, and the whole screen was black, with my mouse pointer still working. So I went back into my console as root, and killed KWin with a SIGBUS to force the KDE Crash Handler to restart it and dump it. AFAIK, the debug log contains information about the real crash aswell (settings stuff).

-- Backtrace:
Application: KWin (kwin), signal: Bus error
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fb3f2e798c0 (LWP 5153))]

Thread 2 (Thread 0x7fb3d0ec7700 (LWP 5394)):
#0  0x00007fb3ec5a40af in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fb3f186b8cb in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x7fb3f1b69f00 <QTWTF::pageheap_memory>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007fb3f186b909 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007fb3ec5a00db in start_thread () from /lib64/libpthread.so.0
#4  0x00007fb3f266f90d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7fb3f2e798c0 (LWP 5153)):
[KCrash Handler]
#6  0x00007fb3f2668913 in select () from /lib64/libc.so.6
#7  0x00007fb3ec9616fb in qt_safe_select (nfds=33, fdread=0x7fff285b9fd0, fdwrite=0x7fff285ba050, fdexcept=fdexcept@entry=0x0, orig_timeout=orig_timeout@entry=0x0) at kernel/qcore_unix.cpp:83
#8  0x00007fb3ec910fc2 in select_msecs (nfds=<optimized out>, fdread=<optimized out>, fdwrite=<optimized out>, timeout=<optimized out>) at io/qprocess_unix.cpp:1008
#9  0x00007fb3ec91277a in QProcessPrivate::waitForFinished (this=this@entry=0x1484c20, msecs=msecs@entry=-1) at io/qprocess_unix.cpp:1229
#10 0x00007fb3ec8caa22 in QProcess::waitForFinished (this=this@entry=0x7fff285ba160, msecs=msecs@entry=-1) at io/qprocess.cpp:1759
#11 0x00007fb3ec8d0c67 in QProcess::execute (program=...) at io/qprocess.cpp:2176
#12 0x00007fb3f2a31800 in KWin::CompositingPrefs::detect (this=this@entry=0x7fff285ba217) at /usr/src/debug/kde-workspace-4.11.3/kwin/compositingprefs.cpp:153
#13 0x00007fb3f29ba5a1 in KWin::Options::reloadCompositingSettings (this=this@entry=0xd3d240, force=force@entry=false) at /usr/src/debug/kde-workspace-4.11.3/kwin/options.cpp:958
#14 0x00007fb3f29ba71d in KWin::Options::updateSettings (this=0xd3d240) at /usr/src/debug/kde-workspace-4.11.3/kwin/options.cpp:802
#15 0x00007fb3f2995e26 in KWin::Workspace::slotReconfigure (this=0xd7f990) at /usr/src/debug/kde-workspace-4.11.3/kwin/workspace.cpp:796
#16 0x00007fb3f299644d in KWin::Workspace::qt_static_metacall (_o=0xd7f990, _id=677093328, _a=0x7fff285ba050, _c=<optimized out>) at /usr/src/debug/kde-workspace-4.11.3/build/kwin/workspace.moc:271
#17 0x00007fb3ec94ad68 in QMetaObject::activate (sender=0xd7fac0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3556
#18 0x00007fb3ec94ef31 in QObject::event (this=0xd7fac0, e=<optimized out>) at kernel/qobject.cpp:1165
#19 0x00007fb3ebab68ac in QApplicationPrivate::notify_helper (this=this@entry=0xbe82f0, receiver=receiver@entry=0xd7fac0, e=e@entry=0x7fff285ba8e0) at kernel/qapplication.cpp:4562
#20 0x00007fb3ebabce70 in QApplication::notify (this=this@entry=0x7fff285badb0, receiver=receiver@entry=0xd7fac0, e=e@entry=0x7fff285ba8e0) at kernel/qapplication.cpp:4348
#21 0x00007fb3f12bd18a in KApplication::notify (this=0x7fff285badb0, receiver=0xd7fac0, event=0x7fff285ba8e0) at /usr/src/debug/kdelibs-4.11.3/kdeui/kernel/kapplication.cpp:311
#22 0x00007fb3ec9370ad in QCoreApplication::notifyInternal (this=0x7fff285badb0, receiver=0xd7fac0, event=0x7fff285ba8e0) at kernel/qcoreapplication.cpp:949
#23 0x00007fb3ec96683c in sendEvent (event=<optimized out>, receiver=<optimized out>) at kernel/qcoreapplication.h:231
#24 QTimerInfoList::activateTimers (this=0xbe8d58) at kernel/qeventdispatcher_unix.cpp:636
#25 0x00007fb3ec966ef0 in QEventDispatcherUNIX::activateTimers (this=this@entry=0xb28a70) at kernel/qeventdispatcher_unix.cpp:893
#26 0x00007fb3ec967860 in QEventDispatcherUNIX::processEvents (this=this@entry=0xb28a70, flags=...) at kernel/qeventdispatcher_unix.cpp:955
#27 0x00007fb3ebb54256 in QEventDispatcherX11::processEvents (this=0xb28a70, flags=...) at kernel/qeventdispatcher_x11.cpp:152
#28 0x00007fb3ec935d0f in QEventLoop::processEvents (this=this@entry=0x7fff285bac20, flags=...) at kernel/qeventloop.cpp:149
#29 0x00007fb3ec936005 in QEventLoop::exec (this=this@entry=0x7fff285bac20, flags=...) at kernel/qeventloop.cpp:204
#30 0x00007fb3ec93b13b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1221
#31 0x00007fb3ebab506c in QApplication::exec () at kernel/qapplication.cpp:3823
#32 0x00007fb3f29b6276 in kdemain (argc=1, argv=0x7fff285baef8) at /usr/src/debug/kde-workspace-4.11.3/kwin/main.cpp:597
#33 0x00007fb3f25a9be5 in __libc_start_main () from /lib64/libc.so.6
#34 0x0000000000400761 in _start () at ../sysdeps/x86_64/start.S:122

Possible duplicates by query: bug 291060.

Reported using DrKonqi