Date: Sat, 30 Jun 2007 00:57:47 -0700
From: Andrew Morton <akpm@linux-foundation.org>
To: Dan <metalifloyd@gmail.com>
Cc: linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org
Subject: Re: PROBLEM: SATA AHCI driver significant throughput loss in
 2.6.22-rc5-g75154f40-dirty
Message-Id: <20070630005747.9bc9ba40.akpm@linux-foundation.org>
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References: <439fa30706262117u2d5553dfp8395c6ca41574a8c@mail.gmail.com>
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On Wed, 27 Jun 2007 00:17:24 -0400 Dan <metalifloyd@gmail.com> wrote:

> Something changed with the AHCI SATA driver in the latest git version.
> With 2.6.21 I get ~49MB/sec according to hdparm. Using the latest git
> version I only get ~8MB/sec. I've attached my .config and have
> included some info about my system below. Please let me know if you
> need more information or if I can help test anything.
> 
> Lenovo Thinkpad T60p

Until we know how widespread this damage is, we'd need to consider this
a blocking bug.

Are you able (as a matter of some urgency) to run a git bisection 
search to identify the offending commit?

Thanks.
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