On Tue, Mar 16, 2004 at 05:59:50PM -0500, John Klos wrote:
> 
> Other people have reported observing this problem with other model VAX,
> but I do not know of anyone reporting having tested large slices on other
> controllers besides the VAXstation built-in ones.
> 
> I doubt it'd be the controller code; access to the individual slice appear
> to be wrapping around or something which ends up causing corruption, but
> other slices on the same drive are not affected. Large drives with smaller
> slices have zero problems, too.

64bits issue maybe ?
I would try:
- different compiler optimisation options (in case it's a compiler bug)
- disable the vax assembly files that can be disabled in sys/lib/libkern
  (use their C implementation).

-- 
Manuel Bouyer <bouyer@antioche.eu.org>
     NetBSD: 26 ans d'experience feront toujours la difference
--