linux-kernel - Re: [bug] ata subsystem related crash with latest -git

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Message-ID: <20071018070538.GD5063@kernel.dk>
Date:	Thu, 18 Oct 2007 09:05:38 +0200
From:	Jens Axboe <jens.axboe@...cle.com>
To:	Jeff Garzik <jeff@...zik.org>
Cc:	Mark Lord <lkml@....ca>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	David Miller <davem@...emloft.net>,
	fujita.tomonori@....ntt.co.jp, mingo@...e.hu,
	linux-kernel@...r.kernel.org, alan@...rguk.ukuu.org.uk,
	tomof@....org
Subject: Re: [bug] ata subsystem related crash with latest -git

On Thu, Oct 18 2007, Jeff Garzik wrote:
> Mark Lord wrote:
>> Okay, mine is dying with EIP at blk_rq_map_sg+0xcb/0x160.
>> Screen photo is at http://rtr.ca/recent/2.6.23-git12-crash.jpg,
>> but the top was cut off (isn't there a new config option or patch
>> to do double-columns or scrollback or something ???.
>
> Is this a sata_mv box?  If so, could you try this patch?

If anything, that shrinks the size of the resulting request. Did this
patch make any difference to you?

Now sata_mv should not be doing this (already discussed), but as long as
it's only lowering the physical sg count then it should not cause any
bugs at least.

-- 
Jens Axboe

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