Application: kwin (4.5.1 (KDE 4.5.1))
KDE Platform Version: 4.5.1 (KDE 4.5.1)
Qt Version: 4.7.0
Operating System: Linux 2.6.34.6-47.fc13.x86_64 x86_64
Distribution (Platform): Fedora RPMs

-- Information about the crash:
- What I was doing when the application crashed:

Resumed from a suspend to ram and first desktop effects were disabled, then kwin crashed. Has happened a few times but not reliably reproducible.

The crash can be reproduced some of the time.

-- Backtrace:
Application: KWin (kwin), signal: Aborted
82	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[KCrash Handler]
#6  0x00000030dda329a5 in raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#7  0x00000030dda34185 in abort () at abort.c:92
#8  0x00000030dda6fd5b in __libc_message (do_abort=2, fmt=0x30ddb438f8 "*** glibc detected *** %s: %s: 0x%s ***\n") at ../sysdeps/unix/sysv/linux/libc_fatal.c:186
#9  0x00000030dda75676 in malloc_printerr (action=3, str=0x30ddb43bf0 "free(): invalid next size (fast)", ptr=<value optimized out>) at malloc.c:6283
#10 0x00007f7cfbf41a39 in Oxygen::WidgetStateEngine::unregisterWidget(QObject*) () from /usr/lib64/kde4/plugins/styles/oxygen.so
#11 0x00007f7cfbf3eb08 in Oxygen::WidgetStateEngine::qt_metacall (this=0x225aa10, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0x7fff18f514a0)
    at /usr/src/debug/kdebase-workspace-4.5.1/x86_64-redhat-linux-gnu/kstyles/oxygen/oxygenwidgetstateengine.moc:73
#12 0x0000003366f6e097 in QMetaObject::activate (sender=0x3a40de0, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x7fff18f514a0) at kernel/qobject.cpp:3272
#13 0x0000003366f6e5ef in QObject::destroyed (this=<value optimized out>, _t1=0x3a40de0) at .moc/release-shared/moc_qobject.cpp:149
#14 0x0000003366f6e7e7 in QObject::~QObject (this=0x3a40de0, __in_chrg=<value optimized out>) at kernel/qobject.cpp:842
#15 0x000000336880275d in QWidget::~QWidget (this=0x3a40de0, __in_chrg=<value optimized out>) at kernel/qwidget.cpp:1580
#16 0x00007f7cf5f1e439 in Oxygen::Button::~Button (this=0x3a40de0, __in_chrg=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.5.1/kwin/clients/oxygen/oxygenbutton.cpp:83
#17 0x00000031d3814210 in KCommonDecoration::~KCommonDecoration (this=0x7b8dab0, __in_chrg=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.5.1/kwin/lib/kcommondecoration.cpp:65
#18 0x00007f7cf5f24829 in Oxygen::Client::~Client (this=0x7b8dab0, __in_chrg=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.5.1/kwin/clients/oxygen/oxygenclient.cpp:97
#19 0x00000031d3815f3d in KCommonDecorationWrapper::~KCommonDecorationWrapper (this=0x3c6b980, __in_chrg=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.1/kwin/lib/kcommondecoration_p.cpp:43
#20 0x00000031d3815f59 in KCommonDecorationWrapper::~KCommonDecorationWrapper (this=0x3c6b980, __in_chrg=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.1/kwin/lib/kcommondecoration_p.cpp:44
#21 0x00000031d443f565 in KWin::Client::destroyDecoration (this=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.5.1/kwin/client.cpp:377
#22 0x00000031d44407f0 in KWin::Client::releaseWindow (this=0x4781b50, on_shutdown=false) at /usr/src/debug/kdebase-workspace-4.5.1/kwin/client.cpp:246
#23 0x00000031d446dfbb in KWin::Client::windowEvent (this=0x4781b50, e=0x7fff18f51f40) at /usr/src/debug/kdebase-workspace-4.5.1/kwin/events.cpp:655
#24 0x00000031d446f06b in KWin::Workspace::workspaceEvent (this=0x2224120, e=0x7fff18f51f40) at /usr/src/debug/kdebase-workspace-4.5.1/kwin/events.cpp:321
#25 0x00000031d444d608 in KWin::Application::x11EventFilter (this=0x7fff18f52180, e=0x7fff18f51f40) at /usr/src/debug/kdebase-workspace-4.5.1/kwin/main.cpp:363
#26 0x000000336881bae1 in qt_x11EventFilter (ev=0x7fff18f51f40) at kernel/qapplication_x11.cpp:408
#27 0x000000336882afb0 in QApplication::x11ProcessEvent (this=0x7fff18f52180, event=0x7fff18f51f40) at kernel/qapplication_x11.cpp:3248
#28 0x000000336885506f in QEventDispatcherX11::processEvents (this=0x2188fa0, flags=...) at kernel/qeventdispatcher_x11.cpp:132
#29 0x0000003366f56782 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#30 0x0000003366f56a5c in QEventLoop::exec (this=0x7fff18f520c0, flags=...) at kernel/qeventloop.cpp:201
#31 0x0000003366f5b1d9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#32 0x00000031d444f8e6 in kdemain (argc=<value optimized out>, argv=0x7fff18f52180) at /usr/src/debug/kdebase-workspace-4.5.1/kwin/main.cpp:531
#33 0x00000030dda1ec5d in __libc_start_main (main=0x400900 <main(int, char**)>, argc=3, ubp_av=0x7fff18f52778, init=<value optimized out>, fini=<value optimized out>, 
    rtld_fini=<value optimized out>, stack_end=0x7fff18f52768) at libc-start.c:226
#34 0x0000000000400839 in _start ()

Possible duplicates by query: bug 247827.

Reported using DrKonqi