From mboxrd@z Thu Jan  1 00:00:00 1970
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Subject: Re: libata .sg_tablesize: why always dividing by 2 ?
Date: Thu, 28 Feb 2008 18:44:57 +1100
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To: FUJITA Tomonori <tomof@acm.org>
Cc: alan@redhat.com, liml@rtr.ca, jgarzik@pobox.com, htejun@gmail.com, James.Bottomley@HansenPartnership.com, linux-ide@vger.kernel.org, fujita.tomonori@lab.ntt.co.jp


On Thu, 2008-02-28 at 16:36 +0900, FUJITA Tomonori wrote:
> > BTW. If we -still- run out of iommu space, do we have sane
> mechanisms
> > nowadays to break things up and retry ?
> 
> About SCSI, some drivers do the right thing (retrying), some assume
> that IOMMU mapping failure never happens, some just crash. I'll take
> care about it after fixing the IOMMUs.

Thanks for doing this.

Cheers,
Ben.