Index: sys/sys/vmmeter.h
===================================================================
--- sys/sys/vmmeter.h
+++ sys/sys/vmmeter.h
@@ -46,15 +46,15 @@
 	int16_t	t_pw;		/* jobs in page wait */
 	int16_t	t_sl;		/* jobs sleeping in core */
 	int16_t	t_sw;		/* swapped out runnable/short block jobs */
-	int32_t	t_vm;		/* total virtual memory */
-	int32_t	t_avm;		/* active virtual memory */
+	uint64_t	t_vm;		/* total virtual memory */
+	uint64_t	t_avm;		/* active virtual memory */
 	int32_t	t_rm;		/* total real memory in use */
 	int32_t	t_arm;		/* active real memory */
-	int32_t	t_vmshr;	/* shared virtual memory */
-	int32_t	t_avmshr;	/* active shared virtual memory */
+	uint64_t	t_vmshr;	/* shared virtual memory */
+	uint64_t	t_avmshr;	/* active shared virtual memory */
 	int32_t	t_rmshr;	/* shared real memory */
 	int32_t	t_armshr;	/* active shared real memory */
-	int32_t	t_free;		/* free memory pages */
+	uint32_t	t_free;		/* free memory pages */
 };
 
 #if defined(_KERNEL) || defined(_WANT_VMMETER)
Index: sys/vm/vm_meter.c
===================================================================
--- sys/vm/vm_meter.c
+++ sys/vm/vm_meter.c
@@ -152,10 +152,32 @@
 	return (obj->ref_count > obj->shadow_count);
 }
 
+#if defined(COMPAT_FREEBSD11)
+struct vmtotal11 {
+	int16_t	t_rq;
+	int16_t	t_dw;
+	int16_t	t_pw;
+	int16_t	t_sl;
+	int16_t	t_sw;
+	int32_t	t_vm;
+	int32_t	t_avm;
+	int32_t	t_rm;
+	int32_t	t_arm;
+	int32_t	t_vmshr;
+	int32_t	t_avmshr;
+	int32_t	t_rmshr;
+	int32_t	t_armshr;
+	int32_t	t_free;
+};
+#endif
+
 static int
 vmtotal(SYSCTL_HANDLER_ARGS)
 {
 	struct vmtotal total;
+#if defined(COMPAT_FREEBSD11)
+	struct vmtotal11 total11;
+#endif
 	vm_object_t object;
 	struct proc *p;
 	struct thread *td;
@@ -253,6 +275,29 @@
 	}
 	mtx_unlock(&vm_object_list_mtx);
 	total.t_free = vm_cnt.v_free_count;
+#if defined(COMPAT_FREEBSD11)
+	if (req->oldlen == sizeof(total11)) {
+		bzero(&total11, sizeof(total11));
+
+		total11.t_rq = total.t_rq;
+		total11.t_dw = total.t_dw;
+		total11.t_pw = total.t_pw;
+		total11.t_sl = total.t_sl;
+		total11.t_sw = total.t_sw;
+		total11.t_vm = total.t_vm;	/* trucate */
+		total11.t_avm = total.t_avm;	/* trucate */
+		total11.t_rm = total.t_rm;
+		total11.t_arm = total.t_arm;
+		total11.t_vmshr = total.t_vmshr;	/* truncate */
+		total11.t_avmshr = total.t_avmshr;	/* truncate */
+		total11.t_rmshr = total.t_rmshr;
+		total11.t_armshr = total.t_armshr;
+		total11.t_free = total.t_free;		/* trucate */
+
+		return (sysctl_handle_opaque(oidp, &total11, sizeof(total11),
+		    req));
+	}
+#endif
 	return (sysctl_handle_opaque(oidp, &total, sizeof(total), req));
 }