linux-kernel - Re: 2.6.32.2 SATA link detect failed, 2.6.32.1 works fine

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Message-ID: <51f3faa70912211708j200ab584wa835ffe50981415e@mail.gmail.com>
Date:	Mon, 21 Dec 2009 19:08:56 -0600
From:	Robert Hancock <hancockrwd@...il.com>
To:	fengxiangjun <fengxiangjun@...soft.com>
Cc:	linux-kernel@...r.kernel.org, linux-ide@...r.kernel.org,
	Tejun Heo <tj@...nel.org>
Subject: Re: 2.6.32.2 SATA link detect failed, 2.6.32.1 works fine

On Mon, Dec 21, 2009 at 7:02 PM, fengxiangjun <fengxiangjun@...soft.com> wrote:
>
> Yeah, running 2.6.32.1 now, no problem.
>
> dmesg shows:
>
> ata1.00: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
>
> When booting 2.6.32.2 with the same config, I get
>
> ata1.00: SATA link down (SStatus 0 SControl 301)
>
> Weird.

CCing linux-ide and Tejun. Could be some kind of timing difference
triggering the problem, perhaps?

>
> On Mon, 21 Dec 2009, Robert Hancock wrote:
>
>> On 12/21/2009 05:12 AM, fengxiangjun wrote:
>> >
>> > Hi,
>> >
>> > after upgrading to 2.6.32.2,
>> > with the attached config,
>> > kernel booting always(just tried 10+ times) failed at:
>> >
>> > ata1.00: SATA link down (SStatus 0 SControl 301)
>> > ...
>> > VFS: Cannot open root device ...
>>
>> There were no libata changes in 2.6.32.2 that should have affected this. Are
>> you sure the .config is unchanged? Have you rechecked that 2.6.31.1 still
>> works?
>>
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