On Tue, 16 Mar 1999, Kevin Sullivan wrote:

> On Tue, 16 Mar 1999 10:05:45 MST, "Michael L. Hitch" says
> >  The 5000/240 uses the IOASIC SCSI normally, and the problem appears to
> >only be in the TurboChannel-option SCSI that the 5000/200 has.  It's
> >possibl that the problem may show up on the TC-option card on the other
> >systems, but not too many people are using the TC-option card when they
> >have the IOASIC SCSI.  [The IOASIC SCSI will use DMA directly to memory,
> >while all the TC-option SCSI cards have to copy data to/from the on-card
> >memory buffer.]
> 
> This machine has 2 additional TC SCSI cards.  So you're saying I should be
> worried?

  Only if you plan on using the TC SCSI cards, AND only if the problem is
not directly related to the 5000/200 design.

> Is there a fix for this problem (in -current, maybe)?

  No, I have not yet been able to duplicate this problem on the 5000/200 I
have, so have not been able to debug it.  If I can get the machine moved
into my office and hooked up to some of the disks I have there, then I
might be able to reproduce the problem.  If I can reproduce the problem,
then I'm quite certain I can fix it (or at least work around it).

Michael