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amd64: loose constraints on the APs dpcpu and nmi/dbg stack allocations.

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Use DOMAINSET_PREF() instead of DOMAINSET_FIXED(), to gracefully
fallback in case of memory-less domain.

Reported and tested by:	bcran
Reviewed by:	markj
Sponsored by:	The FreeBSD Foundation
This commit is contained in:
Konstantin Belousov 2019-08-25 21:01:40 +00:00
parent 46213cc528
commit c6a810919b
1 changed files with 3 additions and 3 deletions

6
sys/amd64/amd64/mp_machdep.c

@ -483,10 +483,10 @@ native_start_all_aps(void)
M_ZERO);
mce_stack = (char *)kmem_malloc(PAGE_SIZE, M_WAITOK | M_ZERO);
nmi_stack = (char *)kmem_malloc_domainset(
DOMAINSET_FIXED(domain), PAGE_SIZE, M_WAITOK | M_ZERO);
DOMAINSET_PREF(domain), PAGE_SIZE, M_WAITOK | M_ZERO);
dbg_stack = (char *)kmem_malloc_domainset(
DOMAINSET_FIXED(domain), PAGE_SIZE, M_WAITOK | M_ZERO);
dpcpu = (void *)kmem_malloc_domainset(DOMAINSET_FIXED(domain),
DOMAINSET_PREF(domain), PAGE_SIZE, M_WAITOK | M_ZERO);
dpcpu = (void *)kmem_malloc_domainset(DOMAINSET_PREF(domain),
DPCPU_SIZE, M_WAITOK | M_ZERO);
bootSTK = (char *)bootstacks[cpu] +