PERFORCE change 28515 for review

[Peter Wemm]

http://perforce.freebsd.org/chv.cgi?CH=28515

Change 28515 by peter at peter_daintree on 2003/04/08 02:27:28

	fork works better when the entire address space isn't read-only

Affected files ...

.. //depot/projects/hammer/sys/x86_64/x86_64/pmap.c#20 edit

Differences ...

==== //depot/projects/hammer/sys/x86_64/x86_64/pmap.c#20 (text+ko) ====

@@ -1084,9 +1084,9 @@
 	for (i = 0; i < NPGPTD; i++) {
 		pa = VM_PAGE_TO_PHYS(ptdpg[i]);
 		pmap->pm_pdir[PTDPTDI + i] = pa | PG_V | PG_RW | PG_A | PG_M;
-		pmap->pm_pdp[i] = pa | PG_V;
+		pmap->pm_pdp[i] = pa | PG_RW | PG_V;
 	}
-	pmap->pm_pml4[0] = VM_PAGE_TO_PHYS(pdppg) | PG_V;
+	pmap->pm_pml4[0] = VM_PAGE_TO_PHYS(pdppg) | PG_RW | PG_V;
 
 	pmap->pm_active = 0;
 	TAILQ_INIT(&pmap->pm_pvlist);