--- src/gnu/usr.bin/gdb/kgdb/trgt_i386.c	2006/05/01 16:56:01	1.2
+++ src/gnu/usr.bin/gdb/kgdb/trgt_i386.c	2006/07/09 01:38:57	1.3
@@ -59,10 +59,9 @@ kgdb_trgt_fetch_registers(int regno __un
 		return;
 
 	/*
-	 * XXX Detect pure thread
-	 * XXX handle pure thread dumping
+	 * kt->pcb == NULL is a marker for "non-dumping kernel thread".
 	 */
-	if (kt->paddr == 0) {
+	if (kt->pcb == NULL) {
 		uintptr_t regs[5];
 		uintptr_t addr;
 		uintptr_t sp;