Lynn Boger c2ed4eda69 unix: fix TestSchedSetaffinity for smt settings ...

If a system has the ability to disable some cores, as on
ppc64 with the ppc64_cpu command, then TestSchedSetaffinity will
fail if the CPUset passed to Setaffinity includes one that has
been disabled.

This adds a check to use values from the oldMask, which are the valid
cores returned from Getaffinity, to pass to Setaffinity.

Fixes golang/go#27875

Change-Id: I9656f41867afc18e0eaedc4bdef5f75e137a1fcd
Reviewed-on: https://go-review.googlesource.com/137675
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

2018-09-26 16:07:41 +00:00

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