D21013.diff
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	Index: head/sys/arm64/arm64/pmap.c
	===================================================================
	--- head/sys/arm64/arm64/pmap.c
	+++ head/sys/arm64/arm64/pmap.c
	@@ -3361,7 +3361,7 @@
	CHANGE_PV_LIST_LOCK_TO_PHYS(&lock, pa);
	TAILQ_INSERT_TAIL(&m->md.pv_list, pv, pv_next);
	m->md.pv_gen++;
	- if ((new_l3 & ATTR_AP_RW_BIT) == ATTR_AP(ATTR_AP_RW))
	+ if ((new_l3 & ATTR_SW_DBM) != 0)
	vm_page_aflag_set(m, PGA_WRITEABLE);
	}

	@@ -3554,7 +3554,7 @@
	va, pmap);
	return (KERN_RESOURCE_SHORTAGE);
	}
	- if ((new_l2 & ATTR_AP_RW_BIT) == ATTR_AP(ATTR_AP_RW))
	+ if ((new_l2 & ATTR_SW_DBM) != 0)
	for (mt = m; mt < &m[L2_SIZE / PAGE_SIZE]; mt++)
	vm_page_aflag_set(mt, PGA_WRITEABLE);
	}