Index: sys/vm/vm_radix.c
===================================================================
--- sys/vm/vm_radix.c	(revision 229659)
+++ sys/vm/vm_radix.c	(working copy)
@@ -56,6 +56,9 @@
 
 CTASSERT(sizeof(struct vm_radix_node) < PAGE_SIZE);
 
+#undef KTR_VM
+#define	KTR_VM	KTR_FLO
+
 static uma_zone_t vm_radix_node_zone;
 
 #ifndef UMA_MD_SMALL_ALLOC
Index: sys/sys/ktr.h
===================================================================
--- sys/sys/ktr.h	(revision 229659)
+++ sys/sys/ktr.h	(working copy)
@@ -75,6 +75,7 @@
 #define	KTR_INET6	0x10000000		/* IPv6 stack */
 #define	KTR_SCHED	0x20000000		/* Machine parsed sched info. */
 #define	KTR_BUF		0x40000000		/* Buffer cache */
+#define	KTR_FLO		0x80000000		/* test */
 #define	KTR_ALL		0x7fffffff
 
 /* Trace classes to compile in */