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D6728.id17309.diff
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Index: sys/amd64/amd64/pmap.c
===================================================================
--- sys/amd64/amd64/pmap.c
+++ sys/amd64/amd64/pmap.c
@@ -3947,12 +3947,14 @@
while ((pv = TAILQ_FIRST(&m->md.pv_list)) != NULL) {
pmap = PV_PMAP(pv);
if (!PMAP_TRYLOCK(pmap)) {
- pvh_gen = pvh->pv_gen;
+ if ((m->flags & PG_FICTITIOUS) == 0)
+ pvh_gen = pvh->pv_gen;
md_gen = m->md.pv_gen;
rw_wunlock(lock);
PMAP_LOCK(pmap);
rw_wlock(lock);
- if (pvh_gen != pvh->pv_gen || md_gen != m->md.pv_gen) {
+ if (((m->flags & PG_FICTITIOUS) == 0 &&
+ pvh_gen != pvh->pv_gen) || md_gen != m->md.pv_gen) {
rw_wunlock(lock);
PMAP_UNLOCK(pmap);
goto retry;
@@ -5775,13 +5777,14 @@
TAILQ_FOREACH(pv, &m->md.pv_list, pv_next) {
pmap = PV_PMAP(pv);
if (!PMAP_TRYLOCK(pmap)) {
- pvh_gen = pvh->pv_gen;
+ if ((m->flags & PG_FICTITIOUS) == 0)
+ pvh_gen = pvh->pv_gen;
md_gen = m->md.pv_gen;
rw_wunlock(lock);
PMAP_LOCK(pmap);
rw_wlock(lock);
- if (pvh_gen != pvh->pv_gen ||
- md_gen != m->md.pv_gen) {
+ if (((m->flags & PG_FICTITIOUS) == 0 &&
+ pvh_gen != pvh->pv_gen) || md_gen != m->md.pv_gen) {
PMAP_UNLOCK(pmap);
rw_wunlock(lock);
goto retry_pv_loop;
@@ -5985,12 +5988,14 @@
pvf = pv;
pmap = PV_PMAP(pv);
if (!PMAP_TRYLOCK(pmap)) {
- pvh_gen = pvh->pv_gen;
+ if ((m->flags & PG_FICTITIOUS) == 0)
+ pvh_gen = pvh->pv_gen;
md_gen = m->md.pv_gen;
rw_wunlock(lock);
PMAP_LOCK(pmap);
rw_wlock(lock);
- if (pvh_gen != pvh->pv_gen || md_gen != m->md.pv_gen) {
+ if (((m->flags & PG_FICTITIOUS) == 0 &&
+ pvh_gen != pvh->pv_gen) || md_gen != m->md.pv_gen) {
PMAP_UNLOCK(pmap);
goto retry;
}
@@ -6248,11 +6253,13 @@
pmap = PV_PMAP(pv);
if (!PMAP_TRYLOCK(pmap)) {
md_gen = m->md.pv_gen;
- pvh_gen = pvh->pv_gen;
+ if ((m->flags & PG_FICTITIOUS) == 0)
+ pvh_gen = pvh->pv_gen;
rw_wunlock(lock);
PMAP_LOCK(pmap);
rw_wlock(lock);
- if (pvh_gen != pvh->pv_gen || md_gen != m->md.pv_gen) {
+ if (((m->flags & PG_FICTITIOUS) == 0 &&
+ pvh_gen != pvh->pv_gen) || md_gen != m->md.pv_gen) {
PMAP_UNLOCK(pmap);
goto restart;
}

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