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Disable the smallest UMA bucket size on 32-bit platforms.

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With r357314, sizeof(struct uma_bucket) grew to 16 bytes on 32-bit
platforms, so BUCKET_SIZE(4) is 0.  This resulted in the creation of a
bucket zone for buckets with zero capacity.  A more general fix is
planned, but for now this bandaid allows 32-bit platforms to boot again.

PR:		243837
Discussed with:	jeff
Reported by:	pho, Jenkins via lwhsu
Tested by:	pho
Sponsored by:	The FreeBSD Foundation
This commit is contained in:
Mark Johnston 2020-02-03 19:29:02 +00:00
parent 35beedae40
commit 36cb95c736
1 changed files with 2 additions and 0 deletions
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2
sys/vm/uma_core.c
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@ -239,7 +239,9 @@ struct uma_bucket_zone {
#define BUCKET_MIN BUCKET_SIZE(4)
struct uma_bucket_zone bucket_zones[] = {
#ifndef __ILP32__
{ NULL, "4 Bucket", BUCKET_SIZE(4), 4096 },
#endif
{ NULL, "6 Bucket", BUCKET_SIZE(6), 3072 },
{ NULL, "8 Bucket", BUCKET_SIZE(8), 2048 },
{ NULL, "12 Bucket", BUCKET_SIZE(12), 1536 },