Date: Thu, 18 Oct 2007 12:56:33 +0200
From: Jens Axboe <jens.axboe@oracle.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: Jeff Garzik <jeff@garzik.org>,
       Linus Torvalds <torvalds@linux-foundation.org>,
       linux-kernel@vger.kernel.org, Alan Cox <alan@lxorguk.ukuu.org.uk>
Subject: Re: [bug] ata subsystem related crash with latest -git
Message-ID: <20071018105633.GU5063@kernel.dk>
References: <471720FE.4090004@garzik.org> <20071018091706.GO5063@kernel.dk> <4717281B.6070301@garzik.org> <20071018094128.GP5063@kernel.dk> <47172FB1.5020704@garzik.org> <20071018100959.GQ5063@kernel.dk> <20071018101348.GA29296@elte.hu> <20071018101650.GR5063@kernel.dk> <20071018101739.GS5063@kernel.dk> <20071018104910.GA9658@elte.hu>
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On Thu, Oct 18 2007, Ingo Molnar wrote:
> 
> * Jens Axboe <jens.axboe@oracle.com> wrote:
> 
> > > It would always be nice. For this case I don't think it's very 
> > > interesting, if we pursue the improved sg iteration setup.
> > 
> > BTW, I think it's pretty clear that ata_sg_is_last() is broken. It's 
> > likely a one-off in the n_iter test.
> 
> fixing that would be a -stable candidate, as a potential data corruptor 
> - or is it more benign?

I think it's safe to say that it was sg chaining introduced breakage, so
it should work fine in 2.6.23.x.

-- 
Jens Axboe

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