Here's a proposed patch for this problem:
Index: src/sys/i386/i386/pmap.c
===================================================================
RCS file: /x/freebsd/src/sys/i386/i386/pmap.c,v
retrieving revision 1.376
diff -u -r1.376 pmap.c
--- src/sys/i386/i386/pmap.c 3 Dec 2002 04:00:42 -0000 1.376
+++ src/sys/i386/i386/pmap.c 13 Dec 2002 02:54:44 -0000
@@ -3300,7 +3300,7 @@
{
pt_entry_t *ptep, pte;
vm_page_t m;
- int val = 0;
+ int refd, val = 0;
ptep = pmap_pte(pmap, addr);
if (ptep == 0) {
@@ -3337,9 +3337,17 @@
/*
* Referenced by someone
*/
- else if ((m->flags & PG_REFERENCED) || pmap_ts_referenced(m)) {
+ else if (m->flags & PG_REFERENCED) {
val |= MINCORE_REFERENCED_OTHER;
vm_page_flag_set(m, PG_REFERENCED);
+ } else {
+ vm_page_lock_queues();
+ refd = pmap_ts_referenced(m);
+ vm_page_unlock_queues();
+ if (refd) {
+ val |= MINCORE_REFERENCED_OTHER;
+ vm_page_flag_set(m, PG_REFERENCED);
+ }
}
}
return val;
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