D18720.diff
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	Index: head/sys/riscv/riscv/pmap.c
	===================================================================
	--- head/sys/riscv/riscv/pmap.c
	+++ head/sys/riscv/riscv/pmap.c
	@@ -1297,17 +1297,13 @@
	("pmap_release: pmap resident count %ld != 0",
	pmap->pm_stats.resident_count));

	- m = PHYS_TO_VM_PAGE(DMAP_TO_PHYS((vm_offset_t)pmap->pm_l1));
	- vm_page_unwire_noq(m);
	- vm_page_free_zero(m);
	-
	- /* Remove pmap from the allpmaps list */
	mtx_lock(&allpmaps_lock);
	LIST_REMOVE(pmap, pm_list);
	mtx_unlock(&allpmaps_lock);

	- /* Remove kernel pagetables */
	- bzero(pmap->pm_l1, PAGE_SIZE);
	+ m = PHYS_TO_VM_PAGE(DMAP_TO_PHYS((vm_offset_t)pmap->pm_l1));
	+ vm_page_unwire_noq(m);
	+ vm_page_free(m);
	}

	#if 0