From mboxrd@z Thu Jan  1 00:00:00 1970
From: ron minnich <rminnich@lanl.gov>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] struct problems
In-Reply-To: <000a01c3165c$eaeeb2a0$d3944251@SOMA>
Message-ID: <Pine.LNX.4.44.0305091422180.11075-100000@maxroach.lanl.gov>
MIME-Version: 1.0
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Date: Fri,  9 May 2003 14:22:43 -0600
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On Thu, 8 May 2003, boyd, rounin wrote:

> it's worse than that, a 32 bit int access on a 16 bit device register _may_
> get 'optimised' into an 'extract field' instruction which then causes a kernel
> mode fault.  iirc the 8th Ed TU16 driver ... 750/780 porting issue.

yes, the whole bitfield thing is a total botch when it cames to real
hardware. Truly bad things happen.

ron