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Bug#435594: compiz-kde: kde-window-decorator segfault in destructor



Marcus Better wrote:
> Package: compiz-kde
> Version: 0.5.0.dfsg-2
> Severity: normal
>
> kde-window-decorator segfaulted after running for some hours.
>   

I talked to some KDE guys, it's not clear whether the bug is in
kde-window-decorator or in a KDE/QT lib. The same backtrace has been
reported multiple times:
    https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/129801
    http://www.mail-archive.com/compiz@lists.freedesktop.org/msg00741.html
    http://bugs.kde.org/show_bug.cgi?id=143419
without any reply (apart from KDE guys saying that they don't care since
they don't maintain kde-window-decorator)

I will forward this bug in upstream compiz bugzilla, but I'd like to see
it reproduced with compiz 0.5.2 first (might be uploaded to unstable soon).

Brice


> [KCrash handler]
> #5  0x00002b2da2101e96 in QObject::parent (this=0x1)
>     at ../include/qobject.h:154
> #6  0x00002b2da21025ff in QWidget::parentWidget (this=0x1, sameWindow=false)
>     at ../include/qwidget.h:878
> #7  0x00002b2da220e90b in ~QWidget (this=0x741660) at kernel/qwidget.cpp:946
> #8  0x00002b2da226e595 in ~QButton (this=0x741660) at widgets/qbutton.cpp:410
> #9  0x00002b2da3a23e51 in ~PlastikButton (this=0x1)
>     at /build/buildd/kdebase-3.5.7/./kwin/clients/plastik/plastikbutton.cpp:60
> #10 0x00002b2d9edb9c50 in ~KCommonDecoration (this=0x76fdd0)
>     at /build/buildd/kdebase-3.5.7/./kwin/lib/kcommondecoration.cpp:55
> #11 0x00002b2da3a26abe in ~PlastikClient (this=0x76fdd0)
>     at /build/buildd/kdebase-3.5.7/./kwin/clients/plastik/plastikclient.cpp:52
> #12 0x0000000000416261 in ?? ()
> #13 0x000000000040dcc5 in ?? ()
> #14 0x000000000040bd48 in ?? ()
> #15 0x00002b2da21d44ee in QObject::activate_signal (this=0x679a70, 
>     clist=0x728900, o=0x7fff0cc1f6a0) at kernel/qobject.cpp:2356
> #16 0x00002b2d9ea1b913 in KWinModule::windowRemoved (
>     this=<value optimized out>, t0=44040599) at ./kwinmodule.moc:185
> #17 0x00002b2d9ea2073a in KWinModulePrivate::removeClient (this=0x679b90, 
>     w=44040599)
>     at /build/buildd/kdelibs-3.5.7.dfsg.1/./kdecore/kwinmodule.cpp:331
> #18 0x00002b2d9ea0f17d in NETRootInfo::update (this=0x679c58, 
>     dirty_props=<value optimized out>)
>     at /build/buildd/kdelibs-3.5.7.dfsg.1/./kdecore/netwm.cpp:2183
> #19 0x00002b2d9ea0f547 in NETRootInfo::event (this=0x679c58, 
>     event=0x7fff0cc20070, properties=0x7fff0cc1fa00, properties_size=5)
>     at /build/buildd/kdelibs-3.5.7.dfsg.1/./kdecore/netwm.cpp:2106
> #20 0x00002b2d9ea21cf5 in KWinModulePrivate::x11Event (this=0x679b90, 
>     ev=0x7fff0cc20070)
>     at /build/buildd/kdelibs-3.5.7.dfsg.1/./kdecore/kwinmodule.cpp:211
> #21 0x00002b2d9eabcaf8 in KApplication::x11EventFilter (this=0x6289b0, 
>     _event=0x7fff0cc20070)
>     at /build/buildd/kdelibs-3.5.7.dfsg.1/./kdecore/kapplication.cpp:1651
> #22 0x000000000040e2f5 in ?? ()
> #23 0x00002b2da20efb5a in qt_x11EventFilter (ev=0x7fff0cc20070)
>     at kernel/qapplication_x11.cpp:387
> #24 0x00002b2da20ff186 in QApplication::x11ProcessEvent (this=0x6289b0, 
>     event=0x7fff0cc20070) at kernel/qapplication_x11.cpp:3343
> #25 0x00002b2da211593f in QEventLoop::processEvents (this=0x65b6c0, flags=4)
>     at kernel/qeventloop_x11.cpp:192
> #26 0x00002b2da2188e27 in QEventLoop::enterLoop (this=0x65b6c0)
>     at kernel/qeventloop.cpp:198
> #27 0x00002b2da2188c2f in QEventLoop::exec (this=0x65b6c0)
>     at kernel/qeventloop.cpp:145
> #28 0x00002b2da2171324 in QApplication::exec (this=0x6289b0)
>     at kernel/qapplication.cpp:2758
> #29 0x000000000040caa3 in ?? ()
> #30 0x00002b2da1825b04 in __libc_start_main () from /lib/libc.so.6
> #31 0x000000000040b9f9 in ?? ()
> #32 0x00007fff0cc20508 in ?? ()
> #33 0x0000000000000000 in ?? ()
>   




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