Index: db_trace.c
===================================================================
RCS file: /cvsroot/src/sys/arch/mips/mips/db_trace.c,v
retrieving revision 1.45
diff -p -u -r1.45 db_trace.c
--- db_trace.c	17 Aug 2020 04:15:34 -0000	1.45
+++ db_trace.c	26 Sep 2020 04:56:43 -0000
@@ -142,8 +142,6 @@ db_stack_trace_print(db_expr_t addr, boo
 {
 #ifndef DDB_TRACE
 	struct pcb *pcb;
-	struct proc p;
-	struct lwp l;
 	const char *cp = modif;
 	char c;
 	bool lwpaddr = false;
@@ -174,27 +172,42 @@ db_stack_trace_print(db_expr_t addr, boo
 	}
 
 	if (lwpaddr) {
-		db_read_bytes(addr, sizeof(l), (char *)&l);
-		db_read_bytes((db_addr_t)l.l_proc, sizeof(p), (char *)&p);
-		(*pr)("pid %d.%d ", p.p_pid, l.l_lid);
+#ifdef _KERNEL
+		struct lwp *l;
+
+		l = (struct lwp *)(intptr_t)addr;
+		(*pr)("pid %d.%d ", l->l_proc->p_pid, l->l_lid);
+		pcb = lwp_getpcb(l);
+#else
+		struct proc pstore;
+		struct lwp lstore;
+
+		db_read_bytes(addr, sizeof(lstore), (char *)&lstore);
+		db_read_bytes((db_addr_t)lstore.l_proc, sizeof(pstore), 
+		    (char *)&pstore);
+		(*pr)("pid %d.%d ", pstore.p_pid, lstore.l_lid);
+		pcb = lwp_getpcb(&lstore);
+#endif
 	} else {
 		/* "trace/t" */
 
 		(*pr)("pid %d ", (int)addr);
 #ifdef _KERNEL
-		struct proc *p2 = proc_find_raw(addr);
-		if (p2 == NULL) {
+		struct lwp *l;
+		struct proc *p = proc_find_raw(addr);
+
+		if (p == NULL) {
 			(*pr)("not found\n");
 			return;
 		}	
-		l = *LIST_FIRST(&p2->p_lwps); /* XXX NJWLWP */
+		l = LIST_FIRST(&p->p_lwps); /* XXX NJWLWP */
+		pcb = lwp_getpcb(l);
 #else
 		(*pr)("no proc_find_raw() in crash\n");
 		return;
 #endif
 	}
 
-	pcb = lwp_getpcb(&l);
 	(*pr)("at %p\n", pcb);
 
 #ifdef _KERNEL