[comp.sys.encore] large shared memory == crash.

rcowh@dropbear.co.rmit.oz (Warwick Heath) (11/14/89)

We have a fully configured Multimax (20 APC's) with 64Meg memory.
It is running UMAXV 2.2h so that we can fully utilise shared
memory. (as opposed to UMAX4.2).
When running large shared memory jobs ( >20-30 Megabytes shared)
we have programs that are guaranteed to cause kernal panics within
2 or 3 minutes. We have tried lots of things, playing around with
the tuneable parameters, e.g. shared mem limits, user mem limits,
to no avail. We can get rid of the problem by deconfiguring half
of the CPU boards, any configuration above 5 CPU boards will crash.
This problem has been assigned an SPR number by Encore, however
it would be nice to hear if anyone out there has experienced the
same problem/ worked out a way around it.

ta,
warwick heath.

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