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MFC: Fix a bug in pmap_protect() in the PAE case where it could look up the

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wrong vm_page_t associated with a pte.

Approved by:	re (kensmith)
This commit is contained in:
jhb 2005-08-04 16:41:25 +00:00
parent 4cb10a2e72
commit 28b017aabc
1 changed files with 2 additions and 2 deletions
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4
sys/i386/i386/pmap.c
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@ -1810,14 +1810,14 @@ retry:
if (pbits & PG_MANAGED) {
m = NULL;
if (pbits & PG_A) {
m = PHYS_TO_VM_PAGE(pbits);
m = PHYS_TO_VM_PAGE(*pte);
vm_page_flag_set(m, PG_REFERENCED);
pbits &= ~PG_A;
}
if ((pbits & PG_M) != 0 &&
pmap_track_modified(sva)) {
if (m == NULL)
m = PHYS_TO_VM_PAGE(pbits);
m = PHYS_TO_VM_PAGE(*pte);
vm_page_dirty(m);
}
}