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

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Date:	Thu, 18 Oct 2007 16:16:25 +0200
From:	Benny Halevy <bhalevy@...asas.com>
To:	Jens Axboe <jens.axboe@...cle.com>
CC:	David Miller <davem@...emloft.net>, torvalds@...ux-foundation.org,
	fujita.tomonori@....ntt.co.jp, mingo@...e.hu,
	linux-kernel@...r.kernel.org, jgarzik@...ox.com,
	alan@...rguk.ukuu.org.uk, tomof@....org
Subject: Re: [bug] ata subsystem related crash with latest -git

On Oct. 18, 2007, 16:05 +0200, Jens Axboe <jens.axboe@...cle.com> wrote:
> On Thu, Oct 18 2007, Jens Axboe wrote:
>> On Thu, Oct 18 2007, Benny Halevy wrote:
>>>>  	return sg;
>>>>  }
>>>> @@ -83,6 +96,9 @@ static inline struct scatterlist *sg_last(struct scatterlist *sgl,
>>>>  		ret = sg;
>>>>  
>>>>  #endif
>>>> +#ifdef CONFIG_DEBUG_SG
>>>> +	BUG_ON(sgl[0].sg_magic != SG_MAGIC);
>>> can it also do BUG_ON(!sg_is_last(sg))?
>> That would make sense, definitely. I'll add that.
> 
>         BUG_ON(!sg_is_last(ret));
> 
> it should be, not sg. That's what I merged.
> 
right. of course.
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