diff --git a/sys/arm/arm/pmap.c b/sys/arm/arm/pmap.c index cbd6c21638bc..c2b2ec0eefda 100644 --- a/sys/arm/arm/pmap.c +++ b/sys/arm/arm/pmap.c @@ -3124,7 +3124,19 @@ pmap_remove_all(vm_page_t m) if (flush == FALSE && (pv->pv_pmap == curpm || pv->pv_pmap == pmap_kernel())) flush = TRUE; + PMAP_LOCK(pv->pv_pmap); + /* + * Cached contents were written-back in pmap_remove_write(), + * but we still have to invalidate the cache entry to make + * sure stale data are not retrieved when another page will be + * mapped under this virtual address. + */ + if (pmap_is_current(pv->pv_pmap)) { + cpu_dcache_inv_range(pv->pv_va, PAGE_SIZE); + cpu_l2cache_inv_range(pv->pv_va, PAGE_SIZE); + } + l2b = pmap_get_l2_bucket(pv->pv_pmap, pv->pv_va); KASSERT(l2b != NULL, ("No l2 bucket")); ptep = &l2b->l2b_kva[l2pte_index(pv->pv_va)];