linux-kernel - Re: [PATCH] x86_32: trim memory by updating e820 v3

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Message-ID: <4815DE0C.6000802@googlemail.com>
Date:	Mon, 28 Apr 2008 16:24:12 +0200
From:	Gabriel C <nix.or.die@...glemail.com>
To:	Mika Fischer <mika.fischer@...pnet.de>
CC:	Ingo Molnar <mingo@...e.hu>, Yinghai Lu <yhlu.kernel@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Jesse Barnes <jesse.barnes@...el.com>, balajirrao@...il.com,
	Andi Kleen <andi@...stfloor.org>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH] x86_32: trim memory by updating e820 v3

Mika Fischer wrote:
> Hi Ingo,
> 
> I'm having the same problem.
> 
> Ingo Molnar schrieb:
>> excellent. So just to make sure: this box never had proper graphics 
>> under Linux (under no previous kernel), due to the way the BIOS has set 
>> up the MTRR's, right?
> 
> Well, not quite. X still works fine, but since the video memory is
> overlapped by two of the existing MTRRs, X cannot add a write-combining
> range for the video memory. That makes X rather slow especially if you
> use DRI for Compiz etc.

Well you are lucky then :) 

Yeah X 'worked' but it worked as slow as with vesa video driver here.

Also starting something like supertuxkart made it crash or I got a black screen :(

The only game I managed to start ( without X to crash ) without that patch was supertux but is was slow as hell.
However I'm not a gamer but I need X to work right.


> Regards,
>  Mika
> 


Gabriel
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