PHCC[1]:

I had commented the #ifdef INVARIANTS checks out to make sure I ran this
code in all kernels and forgot to comment the #ifdefs back in before I
committed.

Spotted by:	bmilekic

[1] PHCC = Pointy Hat Correction Commit

sys/kern/kern_malloc.c

@@ -167,7 +167,7 @@ malloc(size, type, flags)
 #endif
 	register struct malloc_type *ksp = type;
 
-/* #ifdef INVARIANTS */
+#ifdef INVARIANTS
 	/*
 	 * To make sure that WAITOK or NOWAIT is set, but not more than
 	 * one, and check against the API botches that are common.
@@ -183,7 +183,7 @@ malloc(size, type, flags)
 			once++;
 		}
 	}
-/* #endif */
+#endif
 #if 0
 	if (size == 0)
 		Debugger("zero size malloc");

sys/kern/subr_mbuf.c

@@ -614,7 +614,7 @@ mb_alloc(struct mb_lstmngr *mb_list, int how, short type, short persist,
 	struct mb_bucket *bucket;
 	void *m;
 
-/* #ifdef INVARIANTS */
+#ifdef INVARIANTS
 	int flags;
 	
 	flags = how & (M_WAITOK | M_NOWAIT | M_DONTWAIT | M_TRYWAIT);
@@ -627,7 +627,7 @@ mb_alloc(struct mb_lstmngr *mb_list, int how, short type, short persist,
 			how = M_TRYWAIT;
 		}
 	}
-/* #endif */
+#endif
 
 	m = NULL;
 	if ((persist & MBP_PERSISTENT) != 0) {