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	Index: head/sys/powerpc/aim/mmu_oea.c
	===================================================================
	--- head/sys/powerpc/aim/mmu_oea.c
	+++ head/sys/powerpc/aim/mmu_oea.c
	@@ -2108,23 +2108,26 @@
	pvo->pvo_pmap->pm_stats.wired_count--;

	/*
	+ * Remove this PVO from the PV and pmap lists.
	+ */
	+ LIST_REMOVE(pvo, pvo_vlink);
	+ RB_REMOVE(pvo_tree, &pvo->pvo_pmap->pmap_pvo, pvo);
	+
	+ /*
	* Save the REF/CHG bits into their cache if the page is managed.
	+ * Clear PGA_WRITEABLE if all mappings of the page have been removed.
	*/
	if ((pvo->pvo_vaddr & PVO_MANAGED) == PVO_MANAGED) {
	- struct vm_page *pg;
	+ struct vm_page *pg;

	pg = PHYS_TO_VM_PAGE(pvo->pvo_pte.pte.pte_lo & PTE_RPGN);
	if (pg != NULL) {
	moea_attr_save(pg, pvo->pvo_pte.pte.pte_lo &
	(PTE_REF \| PTE_CHG));
	+ if (LIST_EMPTY(&pg->md.mdpg_pvoh))
	+ vm_page_aflag_clear(pg, PGA_WRITEABLE);
	}
	}
	-
	- /*
	- * Remove this PVO from the PV and pmap lists.
	- */
	- LIST_REMOVE(pvo, pvo_vlink);
	- RB_REMOVE(pvo_tree, &pvo->pvo_pmap->pmap_pvo, pvo);

	/*
	* Remove this from the overflow list and return it to the pool