I still have the xyc0 (Xylogic 451) watchdog timeout problem. 
Apparently it *does* cause data  corruption because while compiling
emacs, something (cc1, ld, etc.) would get fatal signal 11 whenever this
happened.  I took ie0 down, thinking that it might be some conflict, but
that didn't help.  It seems that the watchdog timeouts occur when there
is a *lot* of disk activity.  In such a situation, the green light for
port A on the M2361A Super Eagle would practically stay on all the time
(8 megs really isn't enough on a 4/260) and then it would suddenly go
out and all activity would cease until I get a watchdog timeout followed
by soft reset of xyc0. 

Does anybody have *any* ideas here?  Could NetBSD be responsible for
this?  I never saw these with SunOS, but I haven't really done too much
with SunOS.  

-- 
|  Boris Gjenero <bgjenero@undergrad.math.uwaterloo.ca>              |
|  Home page:  http://www.undergrad.math.uwaterloo.ca/~bgjenero/     |
|  "Luke, you're going to find that many of the truths we cling to   |
|  depend greatly on our own point of view." - Obi-Wan Kenobi, ROTJ  |