linux-kernel - Re: [PATCH] Re: Linux v2.6.22-rc3

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Message-ID: <20070608122750.7f8ae0e0@the-village.bc.nu>
Date:	Fri, 8 Jun 2007 12:27:50 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Tejun Heo <htejun@...il.com>
Cc:	Jeff Garzik <jeff@...zik.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Gregor Jasny <gjasny@...glemail.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-ide@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH] Re: Linux v2.6.22-rc3

> Upto 2.6.21, if the same condition triggers, it delays 30secs and just
> continue, so I don't think it was a worthy protection against ghost
> devices or TF malfunction.  The only protection it offers is preventing
> libata from accessing slave's status register too early.  SRST sequence
> looks like the following.

I've seen no bug where it looked like it saved something, and the only
ghost device bugs I've seen it failed to detect anyway (hence the PCMCIA
drivers own ghost detection logic)

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