D45326.id139859.diff
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	diff --git a/sys/riscv/riscv/pmap.c b/sys/riscv/riscv/pmap.c
	--- a/sys/riscv/riscv/pmap.c
	+++ b/sys/riscv/riscv/pmap.c
	@@ -2911,14 +2911,13 @@
	u_int flags, int8_t psind)
	{
	struct rwlock *lock;
	- pd_entry_t l1, l2, l2e;
	+ pd_entry_t *l2, l2e;
	pt_entry_t new_l3, orig_l3;
	pt_entry_t *l3;
	pv_entry_t pv;
	- vm_paddr_t opa, pa, l2_pa, l3_pa;
	- vm_page_t mpte, om, l2_m, l3_m;
	- pt_entry_t entry;
	- pn_t l2_pn, l3_pn, pn;
	+ vm_paddr_t opa, pa;
	+ vm_page_t mpte, om;
	+ pn_t pn;
	int rv;
	bool nosleep;

	@@ -2990,39 +2989,7 @@
	}
	l3 = pmap_l3(pmap, va);
	} else {
	- l3 = pmap_l3(pmap, va);
	- /* TODO: This is not optimal, but should mostly work */
	- if (l3 == NULL) {
	- if (l2 == NULL) {
	- l2_m = vm_page_alloc_noobj(VM_ALLOC_WIRED \|
	- VM_ALLOC_ZERO);
	- if (l2_m == NULL)
	- panic("pmap_enter: l2 pte_m == NULL");
	-
	- l2_pa = VM_PAGE_TO_PHYS(l2_m);
	- l2_pn = (l2_pa / PAGE_SIZE);
	-
	- l1 = pmap_l1(pmap, va);
	- entry = (PTE_V);
	- entry \|= (l2_pn << PTE_PPN0_S);
	- pmap_store(l1, entry);
	- pmap_distribute_l1(pmap, pmap_l1_index(va), entry);
	- l2 = pmap_l1_to_l2(l1, va);
	- }
	-
	- l3_m = vm_page_alloc_noobj(VM_ALLOC_WIRED \|
	- VM_ALLOC_ZERO);
	- if (l3_m == NULL)
	- panic("pmap_enter: l3 pte_m == NULL");
	-
	- l3_pa = VM_PAGE_TO_PHYS(l3_m);
	- l3_pn = (l3_pa / PAGE_SIZE);
	- entry = (PTE_V);
	- entry \|= (l3_pn << PTE_PPN0_S);
	- pmap_store(l2, entry);
	- l3 = pmap_l2_to_l3(l2, va);
	- }
	- pmap_invalidate_page(pmap, va);
	+ panic("pmap_enter: missing L3 table for kernel va %#lx", va);
	}

	orig_l3 = pmap_load(l3);