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In pmap_ptpage_steal(), don't traverse into the kernel portion 

of the address space.
This commit is contained in:
thorpej 2000-09-19 01:02:37 +00:00
parent 3ec253a800
commit a42b372bd6
1 changed files with 4 additions and 3 deletions
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7
sys/arch/alpha/alpha/pmap.c
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@ -1,4 +1,4 @@
/* $NetBSD: pmap.c,v 1.146 2000/09/14 17:06:52 thorpej Exp $ */
/* $NetBSD: pmap.c,v 1.147 2000/09/19 01:02:37 thorpej Exp $ */
/*-
* Copyright (c) 1998, 1999, 2000 The NetBSD Foundation, Inc.
@ -156,7 +156,7 @@
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.146 2000/09/14 17:06:52 thorpej Exp $");
__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.147 2000/09/19 01:02:37 thorpej Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -3632,7 +3632,8 @@ pmap_ptpage_steal(pmap_t pmap, int usage, paddr_t *pap)
* Have a candidate pmap. Loop through the PT pages looking
* for one we can steal.
*/
for (l1idx = 0; l1idx < NPTEPG; l1idx++) {
for (l1idx = 0;
l1idx < l1pte_index(VM_MAXUSER_ADDRESS); l1idx++) {
if (pmap_pte_v(&spmap->pm_lev1map[l1idx]) == 0)
continue;