diff --git a/sys/netinet/ip_reass.c b/sys/netinet/ip_reass.c
--- a/sys/netinet/ip_reass.c
+++ b/sys/netinet/ip_reass.c
@@ -137,12 +137,12 @@
 #define	IP_MAXFRAGPACKETS	(imin(IP_MAXFRAGS, IPREASS_NHASH * 50))
 
 static int		maxfrags;
-static volatile u_int	nfrags;
+static u_int __exclusive_cache_line	nfrags;
 SYSCTL_INT(_net_inet_ip, OID_AUTO, maxfrags, CTLFLAG_RW,
     &maxfrags, 0,
     "Maximum number of IPv4 fragments allowed across all reassembly queues");
 SYSCTL_UINT(_net_inet_ip, OID_AUTO, curfrags, CTLFLAG_RD,
-    __DEVOLATILE(u_int *, &nfrags), 0,
+    &nfrags, 0,
     "Current number of IPv4 fragments across all reassembly queues");
 
 VNET_DEFINE_STATIC(uma_zone_t, ipq_zone);