svn commit: r351456 - head/sys/amd64/amd64

[Konstantin Belousov]

Author: kib
Date: Sat Aug 24 15:28:40 2019
New Revision: 351456
URL: https://svnweb.freebsd.org/changeset/base/351456

Log:
  Do not constrain allocations for doublefault, boot, and mce stacks.
  
  All these stacks are used only once (doublefault, boot) or very rare
  (mce).
  
  Reviewed by:	markj
  Tested by:	pho
  Sponsored by:	The FreeBSD Foundation
  Differential revision:	https://reviews.freebsd.org/D21320

Modified:
  head/sys/amd64/amd64/mp_machdep.c

Modified: head/sys/amd64/amd64/mp_machdep.c
==============================================================================
--- head/sys/amd64/amd64/mp_machdep.c	Sat Aug 24 15:25:53 2019	(r351455)
+++ head/sys/amd64/amd64/mp_machdep.c	Sat Aug 24 15:28:40 2019	(r351456)
@@ -475,13 +475,11 @@ native_start_all_aps(void)
 			domain = acpi_pxm_get_cpu_locality(apic_id);
 #endif
 		/* allocate and set up an idle stack data page */
-		bootstacks[cpu] = (void *)kmem_malloc_domainset(
-		    DOMAINSET_FIXED(domain), kstack_pages * PAGE_SIZE,
+		bootstacks[cpu] = (void *)kmem_malloc(kstack_pages * PAGE_SIZE,
 		    M_WAITOK | M_ZERO);
-		doublefault_stack = (char *)kmem_malloc_domainset(
-		    DOMAINSET_FIXED(domain), PAGE_SIZE, M_WAITOK | M_ZERO);
-		mce_stack = (char *)kmem_malloc_domainset(
-		    DOMAINSET_FIXED(domain), PAGE_SIZE, M_WAITOK | M_ZERO);
+		doublefault_stack = (char *)kmem_malloc(PAGE_SIZE, M_WAITOK |
+		    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);
 		dbg_stack = (char *)kmem_malloc_domainset(