Index: sys/kern/kern_malloc.c
===================================================================
--- sys/kern/kern_malloc.c
+++ sys/kern/kern_malloc.c
@@ -230,11 +230,6 @@
 
 static int sysctl_kern_malloc_stats(SYSCTL_HANDLER_ARGS);
 
-/*
- * time_uptime of the last malloc(9) failure (induced or real).
- */
-static time_t t_malloc_fail;
-
 #if defined(MALLOC_MAKE_FAILURES) || (MALLOC_DEBUG_MAXZONES > 1)
 static SYSCTL_NODE(_debug, OID_AUTO, malloc, CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
     "Kernel malloc debugging options");
@@ -372,13 +367,6 @@
 }
 #endif /* MALLOC_DEBUG_MAXZONES > 1 */
 
-int
-malloc_last_fail(void)
-{
-
-	return (time_uptime - t_malloc_fail);
-}
-
 /*
  * An allocation has succeeded -- update malloc type statistics for the
  * amount of bucket size.  Occurs within a critical section so that the
@@ -534,7 +522,6 @@
 		atomic_add_int(&malloc_nowait_count, 1);
 		if ((malloc_nowait_count % malloc_failure_rate) == 0) {
 			atomic_add_int(&malloc_failure_count, 1);
-			t_malloc_fail = time_uptime;
 			*vap = NULL;
 			return (EJUSTRETURN);
 		}
@@ -661,7 +648,6 @@
 	if (__predict_false(va == NULL)) {
 		KASSERT((flags & M_WAITOK) == 0,
 		    ("malloc(M_WAITOK) returned NULL"));
-		t_malloc_fail = time_uptime;
 	}
 #ifdef DEBUG_REDZONE
 	if (va != NULL)
@@ -729,7 +715,6 @@
 	if (__predict_false(va == NULL)) {
 		KASSERT((flags & M_WAITOK) == 0,
 		    ("malloc(M_WAITOK) returned NULL"));
-		t_malloc_fail = time_uptime;
 	}
 #ifdef DEBUG_REDZONE
 	if (va != NULL)
@@ -760,7 +745,6 @@
 	if (__predict_false(va == NULL)) {
 		KASSERT((flags & M_WAITOK) == 0,
 		    ("malloc(M_WAITOK) returned NULL"));
-		t_malloc_fail = time_uptime;
 	}
 #ifdef DEBUG_REDZONE
 	if (va != NULL)
@@ -790,7 +774,6 @@
 	if (__predict_false(va == NULL)) {
 		KASSERT((flags & M_WAITOK) == 0,
 		    ("malloc(M_WAITOK) returned NULL"));
-		t_malloc_fail = time_uptime;
 	}
 #ifdef DEBUG_REDZONE
 	if (va != NULL)