linux-kernel - Re: ata link not reset properly

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Message-ID: <4C24C903.1070705@kernel.org>
Date:	Fri, 25 Jun 2010 17:19:31 +0200
From:	Tejun Heo <tj@...nel.org>
To:	Ortwin Glück <odi@....ch>
CC:	linux-kernel@...r.kernel.org, linux-ide@...r.kernel.org
Subject: Re: ata link not reset properly

Hello,

Patch attached, but please see below.

On 06/24/2010 09:13 AM, Ortwin Glück wrote:
> On 23.06.2010 19:31, Tejun Heo wrote:
>> Meh, it won't work.  It's failing softreset so we should be checking
>> reset try counts.  I'll try to write up something tomorrow.
> 
> I am happy to try patches. The problem shows up maybe once a month
> only, however. Interestingly it only occurs on ata2 with a IBM hdd,
> never on the first channel with a maxtor. I can also try and attach
> the dvd on the first channel and see if that makes any difference.

Problems like this definitely can depend on the specific drive.

> ata1.00: ATA-5: MAXTOR 6L020J1, A93.0500, max UDMA/133
> ata2.00: ATA-5: IC25N030ATCS04-0, CA3OA71A, max UDMA/100
> ata2.01: ATAPI: Pioneer DVD-ROM ATAPIModel DVD-115  0127, E1.27, max UDMA/33

Is it PATA?  Why do you have 2.01?  Can you please attach full boot
log?

Thanks.

-- 
tejun

View attachment "nv-last-reset.patch" of type "text/x-patch" (2113 bytes)