diff --git a/sys/amd64/amd64/pmap.c b/sys/amd64/amd64/pmap.c index 4542612c2e98..f95cb4da85cd 100644 --- a/sys/amd64/amd64/pmap.c +++ b/sys/amd64/amd64/pmap.c @@ -4298,7 +4298,7 @@ reclaim_pv_chunk_domain(pmap_t locked_pmap, struct rwlock **lockp, int domain) struct spglist free; uint64_t inuse; int bit, field, freed; - bool start_di; + bool start_di, restart; PMAP_LOCK_ASSERT(locked_pmap, MA_OWNED); KASSERT(lockp != NULL, ("reclaim_pv_chunk: lockp is NULL")); @@ -4343,6 +4343,7 @@ reclaim_pv_chunk_domain(pmap_t locked_pmap, struct rwlock **lockp, int domain) * corresponding pmap is locked. */ if (pmap != next_pmap) { + restart = false; reclaim_pv_chunk_leave_pmap(pmap, locked_pmap, start_di); pmap = next_pmap; @@ -4353,13 +4354,13 @@ reclaim_pv_chunk_domain(pmap_t locked_pmap, struct rwlock **lockp, int domain) if (start_di) pmap_delayed_invl_start(); mtx_lock(&pvc->pvc_lock); - continue; + restart = true; } else if (pmap != locked_pmap) { if (PMAP_TRYLOCK(pmap)) { if (start_di) pmap_delayed_invl_start(); mtx_lock(&pvc->pvc_lock); - continue; + restart = true; } else { pmap = NULL; /* pmap is not locked */ mtx_lock(&pvc->pvc_lock); @@ -4375,6 +4376,8 @@ reclaim_pv_chunk_domain(pmap_t locked_pmap, struct rwlock **lockp, int domain) PG_A = pmap_accessed_bit(pmap); PG_M = pmap_modified_bit(pmap); PG_RW = pmap_rw_bit(pmap); + if (restart) + continue; } /*