linux-kernel - Re: [uml-devel] [RFC] UML kernel & rootfs bundle with every kernel release ?

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Message-ID: <4612E802.7000302@nagafix.co.uk>
Date:	Wed, 04 Apr 2007 00:49:22 +0100
From:	Antoine Martin <antoine@...afix.co.uk>
To:	Antoine Martin <antoine@...afix.co.uk>
CC:	Jeff Dike <jdike@...toit.com>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Blaisorblade <blaisorblade@...oo.it>, devzero@....de,
	user-mode-linux-devel@...ts.sourceforge.net,
	linux-kernel@...r.kernel.org, kraxel@...e.de
Subject: Re: [uml-devel] [RFC] UML kernel & rootfs bundle with every kernel
 release ?

Antoine Martin wrote:
> Jeff Dike wrote:
>> On Mon, Apr 02, 2007 at 01:22:00PM +0200, Geert Uytterhoeven wrote:
>>> There are patches floating around for a UML frame buffer device.
>>> Gerd Kraxel^H^H^H^H^H^HHoffmann did one using plain X11, which worked
>>> great when I gave it a try.
>>>
>>> I suggest taking a look at Gerd's patches. IIRC, he posted them to lkml
>>> last year.
>>
>> I have Gerd's patch sitting in my tree, but it's never really worked
>> for me, so I haven't pushed it.
> Yep, I tried them and it didn't work for me either, I'll try again though.
I did try again, and I found this patch:
http://dl.bytesex.org/patches/uml-2.6.11/uml-x11-fb
Which applied (2 rejects by hand), but failed with
"Mapping memory: Cannot allocate memory"
in mmap64:
os_map_memory [...]
   at arch/um/os-Linux/process.c:164

and this one:
http://www.suse.de/~kraxel/uml/patches/2.6.18-rc4/uml-x11-fb
which applied cleanly, but is not letting me set the option - Kconfig is 
beyond me:

arch/um/Kconfig:144:warning: 'select' used by config symbol 'X11_FB' 
refer to undefined symbol 'FB_CFB_FILLRECT'
arch/um/Kconfig:145:warning: 'select' used by config symbol 'X11_FB' 
refer to undefined symbol 'FB_CFB_COPYAREA'
arch/um/Kconfig:146:warning: 'select' used by config symbol 'X11_FB' 
refer to undefined symbol 'FB_CFB_IMAGEBLIT'

So that's a non-starter for me...

Antoine
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