Fix yet for paging algorithm in MIPS Ultrix?

George Robbins grr at cbmvax.commodore.com
Thu Oct 18 21:17:20 AEST 1990


In article <4777 at tahoe.unr.edu> malc at unrvax.unr.edu (Malcolm L. Carlock) writes:
> A few months ago there was some discussion in this group about a bug
> in the paging algorithm of the MIPS version of Ultrix.  Reports were
> that the bug tended with a frequency that varied more or less inversely
> with the amount of memory in the machine.  Word also was that the bug
> seemed to be fairly well-known, but the DEC wasn't moving very fast toward
> acknowledging it.

I don't know if DEC has every really acknowledged or explained the problem,
however a patch was made available for Ultrix 3.1/3.1a that was supposed to
have fixed the problem.  The patch did not appear appropriate for 3.1c, and
I don't know if same problem exists in 3.1c/3.1d. I'd assume that it is
fixed in 4.0.

Maybe you'll get a response from one of the people who applied the patch.

I'd also suggest checking with the support center...

-- 
George Robbins - now working for,     uucp:   {uunet|pyramid|rutgers}!cbmvax!grr
but no way officially representing:   domain: grr at cbmvax.commodore.com
Commodore, Engineering Department     phone:  215-431-9349 (only by moonlite)



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