linux-kernel - Re: [patch 2/4] Expose Power Management Policy option to users

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Date:	Wed, 01 Aug 2007 03:29:18 +0900
From:	Tejun Heo <htejun@...il.com>
To:	Arjan van de Ven <arjan@...radead.org>
CC:	Jeff Garzik <jeff@...zik.org>,
	Kristen Carlson Accardi <kristen.c.accardi@...el.com>,
	James.Bottomley@...eleye.com, linux-scsi@...r.kernel.org,
	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	linux-ide@...r.kernel.org, edwintorok@...il.com, axboe@...nel.dk
Subject: Re: [patch 2/4] Expose Power Management Policy option to users

Arjan van de Ven wrote:
>> They were hardware problems.  I don't think any amount of proper
>> implementation can fix them.  I have one DVD RAM somewhere in my pile of
>> hardware which locks up solidly if any link PS mode is used and had a
> 
> and the AHCI ALPM code decides to use power savings on this device? if
> so, please give us the idents so that we can add it to the blacklist as
> the first entry... (or can buy it to check it in detail first)

Yeap, lemme check.

It's "TSSTcorpCD/DVDW SH-S183A" with firmware revision "SB01".  Wanna
check ID capability bits but 'hdparm -I /dev/sr0' is still broken and
it's already past 3 am here.  I'll report back tomorrow.

Thanks.

-- 
tejun
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