From mboxrd@z Thu Jan  1 00:00:00 1970
From: James Bottomley <James.Bottomley@HansenPartnership.com>
Subject: Re: [PATCH 3/4] BUG_ON on kernel misbehavior on A100U2W driver
Date: Tue, 15 Jul 2008 10:17:47 -0500
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To: Mikulas Patocka <mpatocka@redhat.com>
Cc: torvalds@linux-foundation.org, linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org

On Tue, 2008-07-15 at 10:14 -0400, Mikulas Patocka wrote:
> With broken Sparc64 IOMMU accounting, the kernel submits larger requests 
> then allowed. Better to crash on BUG than corrupt memory. This needs to be 
> fixed in sparc64 code.

This analysis is correct ... and the reason we don't add driver work
arounds, so it really needs to be fixed in sparc, not worked around in
the driver.

James