linux-kernel - Re: [Regression] commit 8a4aeec8d(libata/ahci: accommodate tag ordered controllers)

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Message-ID: <CAPcyv4icNZU9s7zLYYcrFrNA_9qk4W1je42KKG+ETWqdoQu_kg@mail.gmail.com>
Date:	Thu, 5 Jun 2014 06:12:31 -0700
From:	Dan Williams <dan.j.williams@...el.com>
To:	Ming Lei <ming.lei@...onical.com>
Cc:	Tejun Heo <tj@...nel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [Regression] commit 8a4aeec8d(libata/ahci: accommodate tag
 ordered controllers)

On Thu, Jun 5, 2014 at 1:53 AM, Ming Lei <ming.lei@...onical.com> wrote:
> Hi Dan and Tejun,
>
> Looks the commit 8a4aeec8d(libata/ahci: accommodate tag ordered
> controllers) causes below sata failure[1] on APM AHCI controller.
>
> And the error does disappear after reverting the commit.

Can you give some more details about the workload and the disk?  What
is the APM AHCI?
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