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List:       kde-core-devel
Subject:    Re: hostname() used in KApplication::launcher (fwd)
From:       Stephan Kulow <coolo () kde ! org>
Date:       2000-07-18 22:32:52
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David Faure wrote:
> 
> On Wed, 19 Jul 2000, Christopher Molnar wrote:
> > kdmdesktop generates a core dump.
> ... because of the abort() I made you add in KApplication:dcopClient.
> 
> > [root@thebox /root]# gdb kdmdesktop core
> > (gdb) bt
> > #0  0x40c05091 in kill () from /lib/libc.so.6
> > #1  0x40c04d79 in raise () from /lib/libc.so.6
> > #2  0x40c064f0 in abort () from /lib/libc.so.6
> > #3  0x4039128c in KApplication::dcopClient (this=0xbffff6d4) at
> > kapp.cpp:356
> > #4  0x40045c81 in KSycoca::KSycoca () from /usr/lib/libksycoca.so.3
> > #5  0x40046243 in KSycoca::self () from /usr/lib/libksycoca.so.3
> > #6  0x400488d0 in KSycocaFactory::KSycocaFactory ()
> >    from /usr/lib/libksycoca.so.3
> > #7  0x4006348f in KImageIOFactory::KImageIOFactory ()
> >    from /usr/lib/libksycoca.so.3
> > #8  0x40080de8 in KImageIOFactory::self () from /usr/lib/libksycoca.so.3
> > #9  0x40064388 in KImageIO::registerFormats () from
> > /usr/lib/libksycoca.so.3
> > #10 0x804b8eb in KCmdLineArgs::init () at kcmdlineargs.cpp:116
> > #11 0x0 in ?? ()
> > (gdb)
> 
> Here's the problem. kdmconfig, which runs before any user is logged in,
> needs to be able to display background images. For that, it uses KBackgroundRenderer,
> which in turns needs KSycoca for its image support, which in turn tries to register
> to DCOP. Those last two step make no sense when no user is logged in - which
> is the case for kdmdesktop.
> 
> Should kdmdesktop simply not use KImageIO ? All in all, the image formats we need
> are all in Qt now... Someone points me to somebody using an EPS file for the background
> behind his login manager :-)))
> 
> This would mean, a flag in KBackgroundRenderer, or letting kdesktop and kcmbackground
> do the registration themselves, instead of it being done in KBackground[Renderer, AFAIK].
> 
> I don't see any other solution - except running a dcopserver as root which would really
> not be a good solution.
> 
> Does anyone know if kdm actually calls kdmdesktop by itself ? kdm doesn't
> seem to work when kdmdesktop crashes, and that's not good.
> 
kdmdesktop is called by the init scripts, kdm should work fine without
though

Greetings, Stephan

-- 
... but you ain't had mine

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