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Bump WITNESS_PENDLIST by MAXCPU to account for the

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pmap pvlist locks which are scaled by MAXCPU.

This allows an amd64 system to boot with MAXCPU set
to 256, which is currently FreeBSD's hard limit without
x2apic support.

Compile-tested for other arch's.

PR:	185831
Discussed with:		jhb
MFC after:	3 weeks
This commit is contained in:
Peter Grehan 2014-04-29 17:22:29 +00:00
parent 4b55d3602f
commit d6cd193e5e
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=265098
1 changed files with 1 additions and 1 deletions
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2
sys/kern/subr_witness.c
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@ -135,7 +135,7 @@ __FBSDID("$FreeBSD$");
#define WITNESS_COUNT 1536
#define WITNESS_CHILDCOUNT (WITNESS_COUNT * 4)
#define WITNESS_HASH_SIZE 251 /* Prime, gives load factor < 2 */
#define WITNESS_PENDLIST 1024
#define WITNESS_PENDLIST (1024 + MAXCPU)
/* Allocate 256 KB of stack data space */
#define WITNESS_LO_DATA_COUNT 2048