Re: [PATCH 2.6.13-rc7 2/2] completely disable cpu_exclusive scheddomain

From: Nick Piggin
Date: Thu Aug 25 2005 - 20:32:48 EST


Paul Jackson wrote:
At the suggestion of Nick Piggin and Dinakar, totally disable
the facility to allow cpu_exclusive cpusets to define dynamic
sched domains in Linux 2.6.13, in order to avoid problems
first reported by John Hawkes (corrupt sched data structures
and kernel oops).

This has been built for ppc64, i386, ia64, x86_64, sparc, alpha.
It has been built, booted and tested for cpuset functionality
on an SN2 (ia64).

Dinakar or Nick - could you verify that it for sure does avoid
the problems Hawkes reported. Hawkes is out of town, and I don't
have the recipe to reproduce what he found.


Thanks Paul, I was never able to reproduce the problem, but
I'm sure Dinakar should be able to test.

Acked-by: Nick Piggin <npiggin@xxxxxxx>

--
SUSE Labs, Novell Inc.

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