linux-kernel - Re: kernel BUG at drivers/scsi/aic7xxx/aic79xx

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Date:	Sun, 09 Mar 2008 19:32:14 +0300
From:	Michael Tokarev <mjt@....msk.ru>
To:	James Bottomley <James.Bottomley@...senPartnership.com>
CC:	FUJITA Tomonori <tomof@....org>, linux-kernel@...r.kernel.org,
	linux-scsi@...r.kernel.org, fujita.tomonori@....ntt.co.jp
Subject: Re: kernel BUG at drivers/scsi/aic7xxx/aic79xx_osm.c:1490!

James Bottomley wrote:
[]
>> (which doesn't look like a good thing, provided this
>> machine has 6Gb of memory...)
> 
> That's the root cause then.
> 
> There's a bug in the generic implementation of dma_get_required_mask(),
> a fix for which is below, if you could try it (still with the debugging
> patches to make sure it's working).

With the 2 patches applied:

DEBUG: RETURNED REQUIRED MASK 1ffffffff
DEBUG: SET 39 BIT ADDRESSING

I'm running the tests now.  But for some reason I
think it will be ok... ;)

Thanks!

/mjt
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