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Date: Wed, 20 Aug 2008 12:09:59 +0200
From: Ingo Molnar <mingo@elte.hu>
To: Venki Pallipadi <venkatesh.pallipadi@intel.com>
Cc: Rene Herman <rene.herman@keyaccess.nl>, Dave Airlie <airlied@gmail.com>,
       "Li, Shaohua" <shaohua.li@intel.com>,
       Yinghai Lu <yhlu.kernel@gmail.com>,
       Andreas Herrmann <andreas.herrmann3@amd.com>,
       Arjan van de Ven <arjan@infradead.org>,
       Linux Kernel <linux-kernel@vger.kernel.org>,
       "Siddha, Suresh B" <suresh.b.siddha@intel.com>,
       Thomas Gleixner <tglx@linutronix.de>, "H. Peter Anvin" <hpa@zytor.com>
Subject: Re: AGP and PAT (induced?) problem (on AMD family 6)
Message-ID: <20080820100959.GF28492@elte.hu>
References: <48972EA8.8040001@keyaccess.nl> <20080815142218.GC12954@elte.hu> <48A59FAC.7050605@keyaccess.nl> <48AA9C3B.5030309@keyaccess.nl> <20080819102633.GE6722@elte.hu> <48AAD680.7020508@keyaccess.nl> <20080819190757.GA17470@linux-os.sc.intel.com> <48AB1D62.6030406@keyaccess.nl> <20080819232801.GA24610@linux-os.sc.intel.com>
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* Venki Pallipadi <venkatesh.pallipadi@intel.com> wrote:

> Below is the patch I am testing. Let me know if this patch helps.

i've queued this fix up in tip/x86/urgent for more testing - as ~10 
seconds delays are serious enough to warrant a quick fix.

Rene, you might want to try tip/master, which has this integrated as 
well:

  http://people.redhat.com/mingo/tip.git/README

	Ingo