Hmmm, yep, that could be...

I'll move the KFQSA around a bit, closer to the CPU. Maybe it helps.

Faint hope: there are no jumpers on the controller for this? 

ms

Anders Magnusson wrote:
> 
> >
> > Oh, i forgott:
> >
> > With cache disabled, it runs for days without problems.
> > I currently compile a kernel with D-cache disabled and I-Cache enabled.
> > If my theory (uncontrolled cacheing of controller status data) is right,
> > this could help...
> >
> Actually, this seems really strange. The cache on VAXen cannot be flushed
> or invalidated or so, it just has a snoop cache, so the only thing that
> can be done with the CPU cache is to turn it on or off.
> It seems more likely that some cache invalid line in your Q-bus is
> broken, that could cause cache-related problems.
> 
> -- Ragge

-- 
Michael Schneider                       email: ms@silke.rt.schwaben.de
Germany                                  http://www.vaxcluster.de

            People disagree with me.  I just ignore them.
                         (Linus Torvalds)