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 2.6.32.9-70.fc12.x86_64 x86_64
Distribution: "Fedora release 12 (Constantine)"

-- Information about the crash:
when my battery was empty kwin desactivated composition but when I connected my portable to the sector composition hasn't reenabled and in the desktop configuration window I saw that the composition was enabled so i desactivated it and kwin crached

 -- Backtrace:
Application: KWin (kwin), signal: Bus error
82	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[KCrash Handler]
#5  0x00000031ff479100 in KPixmapCache::Private::mmapFile (this=0x1ef8d40, filename=..., info=0x1ef8da8, newsize=126341120) at /usr/src/debug/kdelibs-4.4.1/kdeui/util/kpixmapcache.cpp:491
#6  0x00000031ff47aa28 in KPixmapCache::Private::mmapFiles (this=0x1ef8d40) at /usr/src/debug/kdelibs-4.4.1/kdeui/util/kpixmapcache.cpp:424
#7  0x00000031ff479c87 in KPixmapCache::recreateCacheFiles (this=0x1eea0b0) at /usr/src/debug/kdelibs-4.4.1/kdeui/util/kpixmapcache.cpp:1247
#8  0x00000031ff47a1c0 in KPixmapCache::Private::checkFileVersion (this=0x1ef8d40, filename=...) at /usr/src/debug/kdelibs-4.4.1/kdeui/util/kpixmapcache.cpp:741
#9  0x00000031ff47a7a0 in KPixmapCache::Private::init (this=0x1ef8d40) at /usr/src/debug/kdelibs-4.4.1/kdeui/util/kpixmapcache.cpp:1052
#10 0x00000031ff47c27d in KPixmapCache::discard (this=0x1eea0b0) at /usr/src/debug/kdelibs-4.4.1/kdeui/util/kpixmapcache.cpp:1279
#11 0x00000031ff47c968 in KPixmapCache::deleteCache (name=...) at /usr/src/debug/kdelibs-4.4.1/kdeui/util/kpixmapcache.cpp:1255
#12 0x000000320439911d in Plasma::ThemePrivate::discardCache (this=0x1ec75b0) at /usr/src/debug/kdelibs-4.4.1/plasma/theme.cpp:221
#13 0x000000320439957d in Plasma::ThemePrivate::compositingChanged (this=0x1ec75b0) at /usr/src/debug/kdelibs-4.4.1/plasma/theme.cpp:213
#14 0x000000320439e702 in Plasma::Theme::qt_metacall (this=0x1f02960, _c=InvokeMetaMethod, _id=2, _a=0x7fffa0f9b4e0) at /usr/src/debug/kdelibs-4.4.1/x86_64-redhat-linux-gnu/plasma/theme.moc:108
#15 0x00000033b056a2af in QMetaObject::activate (sender=0x1eeb6a0, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x0) at kernel/qobject.cpp:3293
#16 0x00000031ff47394d in KSelectionWatcher::Private::x11Event (this=<value optimized out>, ev_P=<value optimized out>) at /usr/src/debug/kdelibs-4.4.1/kdeui/util/kmanagerselection.cpp:395
#17 0x00000031ff406036 in publicx11Event (this=<value optimized out>, _event=0x7fffa0f9bbb0) at /usr/src/debug/kdelibs-4.4.1/kdeui/kernel/kapplication.cpp:903
#18 KApplication::x11EventFilter (this=<value optimized out>, _event=0x7fffa0f9bbb0) at /usr/src/debug/kdelibs-4.4.1/kdeui/kernel/kapplication.cpp:953
#19 0x00000031fe2122f1 in qt_x11EventFilter (ev=0x7fffa0f9bbb0) at kernel/qapplication_x11.cpp:399
#20 0x00000031fe220671 in QApplication::x11ProcessEvent (this=<value optimized out>, event=0x7fffa0f9bbb0) at kernel/qapplication_x11.cpp:3231
#21 0x00000031fe249d52 in x11EventSourceDispatch (s=0x1d2e4b0, callback=<value optimized out>, user_data=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:146
#22 0x0000003a6fe3920e in g_main_dispatch (context=0x1d2d520) at gmain.c:1960
#23 IA__g_main_context_dispatch (context=0x1d2d520) at gmain.c:2513
#24 0x0000003a6fe3cbf8 in g_main_context_iterate (context=0x1d2d520, block=<value optimized out>, dispatch=<value optimized out>, self=<value optimized out>) at gmain.c:2591
#25 0x0000003a6fe3cd1a in IA__g_main_context_iteration (context=0x1d2d520, may_block=1) at gmain.c:2654
#26 0x00000033b057d063 in QEventDispatcherGlib::processEvents (this=0x1d11720, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:412
#27 0x00000031fe249a1e in QGuiEventDispatcherGlib::processEvents (this=<value optimized out>, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#28 0x00000033b0556192 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#29 0x00000033b055645c in QEventLoop::exec (this=0x7fffa0f9bee0, flags=...) at kernel/qeventloop.cpp:201
#30 0x00000033b0558749 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#31 0x00007f440632fb8c in kdemain (argc=32552480, argv=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.4.1/kwin/main.cpp:526
#32 0x000000359be1eb1d 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=<value optimized out>) at libc-start.c:226
#33 0x00000000004007a9 in _start ()

This bug may be a duplicate of or related to bug 182026.

Possible duplicates by query: bug 229868.

Reported using DrKonqi