Message-ID: <48A59FAC.7050605@keyaccess.nl>
Date: Fri, 15 Aug 2008 17:24:28 +0200
From: Rene Herman <rene.herman@keyaccess.nl>
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To: Ingo Molnar <mingo@elte.hu>
CC: Dave Airlie <airlied@gmail.com>, Shaohua Li <shaohua.li@intel.com>,
       Yinghai Lu <yhlu.kernel@gmail.com>,
       Andreas Herrmann <andreas.herrmann3@amd.com>,
       Arjan van de Ven <arjan@infradead.org>, dri-users@lists.sourceforge.net,
       Linux Kernel <linux-kernel@vger.kernel.org>,
       Suresh Siddha <suresh.b.siddha@intel.com>,
       "Pallipadi, Venkatesh" <venkatesh.pallipadi@intel.com>,
       Thomas Gleixner <tglx@linutronix.de>, "H. Peter Anvin" <hpa@zytor.com>
Subject: Re: AGP and PAT (induced?) problem (on AMD family 6)
References: <48972EA8.8040001@keyaccess.nl> <20080815142218.GC12954@elte.hu>
In-Reply-To: <20080815142218.GC12954@elte.hu>
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On 15-08-08 16:22, Ingo Molnar wrote:

> (more people Cc:-ed)

Thank you. Additional information at http://lkml.org/lkml/2008/8/6/449

> agreed - +12 seconds wait suggest some rather fundamental breakage.
> Did we go back to uncached for some critical display area that makes
> X start up (shut down) that slowly? Did we mark the BIOS uncacheable
> perhaps, causing X to execute BIOS code very slowly?

Quite a lot "uncached-minus" in those lists. I am desperately trying to 
avoid a clue about mostly anything graphics related so, "I dunno".

I haven't just disabled PAT yet (although I was about to just do so) and 
am available for testing.

Rene.
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