Application: kwin (4.4.1 (KDE 4.4.1))
KDE Platform Version: 4.4.1 (KDE 4.4.1)
Qt Version: 4.6.2
Operating System: Linux 2.6.32-16-generic x86_64
Distribution: Ubuntu lucid (development branch)

-- Information about the crash:
Kwin SUGBUS'es in threading library after style change.

 -- Backtrace:
Application: KWin (kwin), signal: Bus error
The current source language is "auto; currently asm".
[Current thread is 1 (Thread 0x7fb376081820 (LWP 1584))]

Thread 2 (Thread 0x7fb354f1f710 (LWP 1588)):
#0  0x00007fb371580a3d in __pthread_mutex_unlock_usercnt (mutex=0xf10c78) at pthread_mutex_unlock.c:52
#1  __pthread_mutex_unlock (mutex=0xf10c78) at pthread_mutex_unlock.c:290
#2  0x00007fb36a60179d in g_main_context_check () from /lib/libglib-2.0.so.0
#3  0x00007fb36a60200b in ?? () from /lib/libglib-2.0.so.0
#4  0x00007fb36a6024bc in g_main_context_iteration () from /lib/libglib-2.0.so.0
#5  0x00007fb37192a4d6 in QEventDispatcherGlib::processEvents (this=0xf13ab0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:414
#6  0x00007fb3718ff902 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#7  0x00007fb3718ffcdc in QEventLoop::exec (this=0x7fb354f1ecf0, flags=) at kernel/qeventloop.cpp:201
#8  0x00007fb371809d69 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:487
#9  0x00007fb3718e0118 in QInotifyFileSystemWatcherEngine::run (this=0xf0fe80) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007fb37180c785 in QThreadPrivate::start (arg=0xf0fe80) at thread/qthread_unix.cpp:248
#11 0x00007fb37157c9ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#12 0x00007fb375a0938d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fb376081820 (LWP 1584)):
[KCrash Handler]
#5  0x00007fb37558c7b0 in KPixmapCache::Private::mmapFile (this=0x9ef410, filename=..., info=0x9ef460, newsize=33656832) at ../../kdeui/util/kpixmapcache.cpp:491
#6  0x00007fb37558e0b4 in KPixmapCache::Private::mmapFiles (this=0x9ef410) at ../../kdeui/util/kpixmapcache.cpp:419
#7  0x00007fb37558ded3 in KPixmapCache::Private::init (this=0x9ef410) at ../../kdeui/util/kpixmapcache.cpp:1061
#8  0x00007fb37558f94d in KPixmapCache::discard (this=0x9e7650) at ../../kdeui/util/kpixmapcache.cpp:1279
#9  0x00007fb375590038 in KPixmapCache::deleteCache (name=...) at ../../kdeui/util/kpixmapcache.cpp:1255
#10 0x00007fb374fa9add in Plasma::ThemePrivate::discardCache (this=0xa05df0) at ../../plasma/theme.cpp:221
#11 0x00007fb374fad13b in Plasma::ThemePrivate::setThemeName (this=0xa05df0, tempThemeName=<value optimized out>, writeSettings=<value optimized out>) at ../../plasma/theme.cpp:377
#12 0x00007fb374fae41b in Plasma::Theme::settingsChanged (this=0x9a46c0) at ../../plasma/theme.cpp:338
#13 0x00007fb374fae76f in Plasma::ThemePrivate::settingsFileChanged (this=0xa05df0, file=<value optimized out>) at ../../plasma/theme.cpp:332
#14 0x00007fb374fae936 in Plasma::Theme::qt_metacall (this=0x9a46c0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff92fb3340) at ./theme.moc:110
#15 0x00007fb371913dbf in QMetaObject::activate (sender=0xa05b60, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x7fb3759fb07d) at kernel/qobject.cpp:3293
#16 0x00007fb3703bc285 in KDirWatch::created (this=0x1523460, _t1=<value optimized out>) at ./kdirwatch.moc:106
#17 0x00007fb3703bca60 in KDirWatch::setCreated (this=0xa05b60, _file=...) at ../../kio/kio/kdirwatch.cpp:1786
#18 0x00007fb3703bcbb1 in KDirWatch::qt_metacall (this=0xa05b60, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0xf70f20) at ./kdirwatch.moc:85
#19 0x00007fb371910cc9 in QObject::event (this=0xa05b60, e=0xed8320) at kernel/qobject.cpp:1248
#20 0x00007fb37204d22c in QApplicationPrivate::notify_helper (this=0x73ad10, receiver=0xa05b60, e=0xed8320) at kernel/qapplication.cpp:4300
#21 0x00007fb3720536fb in QApplication::notify (this=0x7fff92fb3e50, receiver=0xa05b60, e=0xed8320) at kernel/qapplication.cpp:4183
#22 0x00007fb37550d506 in KApplication::notify (this=0x7fff92fb3e50, receiver=0xa05b60, event=0xed8320) at ../../kdeui/kernel/kapplication.cpp:302
#23 0x00007fb371900fdc in QCoreApplication::notifyInternal (this=0x7fff92fb3e50, receiver=0xa05b60, event=0xed8320) at kernel/qcoreapplication.cpp:704
#24 0x00007fb371903757 in QCoreApplication::sendEvent (receiver=0x0, event_type=<value optimized out>, data=0x727fa0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#25 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=<value optimized out>, data=0x727fa0) at kernel/qcoreapplication.cpp:1345
#26 0x00007fb37192a943 in QCoreApplication::sendPostedEvents (s=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#27 postEventSourceDispatch (s=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:276
#28 0x00007fb36a5fe492 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#29 0x00007fb36a602308 in ?? () from /lib/libglib-2.0.so.0
#30 0x00007fb36a6024bc in g_main_context_iteration () from /lib/libglib-2.0.so.0
#31 0x00007fb37192a483 in QEventDispatcherGlib::processEvents (this=0x73aca0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:412
#32 0x00007fb3720fd21e in QGuiEventDispatcherGlib::processEvents (this=0x1523460, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#33 0x00007fb3718ff902 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#34 0x00007fb3718ffcdc in QEventLoop::exec (this=0x7fff92fb3d90, flags=) at kernel/qeventloop.cpp:201
#35 0x00007fb371903a1b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#36 0x00007fb375cf372e in kdemain (argc=<value optimized out>, argv=<value optimized out>) at ../../kwin/main.cpp:526
#37 0x00007fb375941c4d in __libc_start_main (main=<value optimized out>, argc=<value optimized out>, ubp_av=<value optimized out>, init=<value optimized out>, fini=<value optimized out>, 
    rtld_fini=<value optimized out>, stack_end=0x7fff92fb4358) at libc-start.c:226
#38 0x00000000004006b9 in _start ()
The current source language is "auto; currently c".
The current source language is "auto; currently asm".

Possible duplicates by query: bug 230119, bug 230103, bug 229868, bug 229726, bug 229372.

Reported using DrKonqi