Disk Problems on 11/750: errata

[Thomas J Hacker]

FYI:Errata.  Thanks!!

In article <117 at egrunix.UUCP> hacker at egrunix.UUCP (Thomas J Hacker) writes:

> > Jul 11 18:07:30 unix vmunix: mcr0: soft ecc addr 1a72 syn 73

> "addr" and the following number, "1a72", can be used to figure
> out which board was failing.  You need to know how much memory is
> on each board, and multiply the "1a72" number by 4, since the ecc
> logic looks at memory in 4-byte chunks:  (1a72*4) mod (bytes per board)
> gives you the board number which had the error.  Unfortunately I'm
> not sure how the boards are laid out in a 750.

Opps.  I just read what I wrote, and realized I meant "div" - Integer
division, not "mod":   (1a72*4) div (bytes per board).  Oh well.

-Larry Parmelee
parmelee at cs.cornell.edu


-- 
Thomas Hacker               ...Weave a circle round him thrice,
Systems Programmer             And close your eyes with holy dread, 
Oakland University	       For he on honeydew hath fed, --"Kubla Khan" 
hackertj at unix.secs.oakland.edu And drunk the milk of Paradise. -- ST Coleridge