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uma: fix zone domain overlaying pcpu cache with disabled cpus

Description

uma: fix zone domain overlaying pcpu cache with disabled cpus

UMA zone structures have two arrays at the end which are sized according
to the machine: an array of CPU count length, and an array of NUMA
domain count length. The CPU counting was wrong in the case where some
CPUs are disabled (when mp_ncpus != mp_maxid + 1), and this caused the
second array to be overlaid with the first.

Reported by: olivier
Reviewed by: jeff, markj
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D23318

Details

Committed
rlibbyJan 23 2020, 4:56 AM
Reviewer
jeff
Differential Revision
D23318: uma: fix zone domain overlaying pcpu cache with disabled cpus
Parents
rS357018: uma: report leaks more accurately
Branches
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