linux-kernel - Re: [PATCH 1/3] ide: add "ignore

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Date:	Tue, 26 May 2009 19:15:46 +0200
From:	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	Frans Pop <elendil@...net.nl>, linux-ide@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] ide: add "ignore_hpa" module parameter

On Tuesday 26 May 2009 14:53:43 Alan Cox wrote:
> > Please note that no fancy sysfs support was needed to prevent the problem:
> > both stacks (ide & libata) support HDIO_DRIVE_TASK ioctl which can be used
> > to execute commands needed to retrieve/change HPA setting.
> 
> Wrong. You need sysfs support because you may not be able to retrieve the
> HPA settings after the drive has removed them. You also need a trigger of

All information was there (kernel logs).

Moreover the default in libata is to not remove HPA settings.

I don't recommend parsing kernels logs in search of such information but
you're are stretching the reality too far to match with your arguments.
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