Index: netinet/ip_carp.c
===================================================================
RCS file: /cvs/src/sys/netinet/ip_carp.c,v
retrieving revision 1.286
diff -u -p -r1.286 ip_carp.c
--- netinet/ip_carp.c	21 Jan 2016 11:23:48 -0000	1.286
+++ netinet/ip_carp.c	21 Feb 2016 11:56:17 -0000
@@ -1429,7 +1429,7 @@ carp_input(struct ifnet *ifp0, struct mb
 			if (!(sc->sc_if.if_flags & IFF_UP))
 				continue;
 
-			m0 = m_copym2(m, 0, M_COPYALL, M_DONTWAIT);
+			m0 = m_dup_pkt(m, ETHER_ALIGN, M_DONTWAIT);
 			if (m0 == NULL)
 				continue;
 
Index: sys/mbuf.h
===================================================================
RCS file: /cvs/src/sys/sys/mbuf.h,v
retrieving revision 1.207
diff -u -p -r1.207 mbuf.h
--- sys/mbuf.h	31 Jan 2016 00:18:07 -0000	1.207
+++ sys/mbuf.h	21 Feb 2016 11:56:17 -0000
@@ -447,6 +447,7 @@ void	m_cat(struct mbuf *, struct mbuf *)
 struct mbuf *m_devget(char *, int, int);
 int	m_apply(struct mbuf *, int, int,
 	    int (*)(caddr_t, caddr_t, unsigned int), caddr_t);
+struct mbuf *m_dup_pkt(struct mbuf *, unsigned int, int);
 int	m_dup_pkthdr(struct mbuf *, struct mbuf *, int);
 
 /* Packet tag routines */
Index: kern/uipc_mbuf.c
===================================================================
RCS file: /cvs/src/sys/kern/uipc_mbuf.c,v
retrieving revision 1.218
diff -u -p -r1.218 uipc_mbuf.c
--- kern/uipc_mbuf.c	31 Jan 2016 00:18:07 -0000	1.218
+++ kern/uipc_mbuf.c	21 Feb 2016 11:56:17 -0000
@@ -1213,6 +1213,40 @@ m_dup_pkthdr(struct mbuf *to, struct mbu
 	return (0);
 }
 
+struct mbuf *
+m_dup_pkt(struct mbuf *m0, unsigned int adj, int wait)
+{
+	struct mbuf *m;
+	int len;
+
+	len = m0->m_pkthdr.len + adj;
+	if (len > MAXMCLBYTES) /* XXX */
+		return (NULL);
+
+	m = m_get(m0->m_type, wait);
+	if (m == NULL)
+		return (NULL);
+
+	if (m_dup_pkthdr(m, m0, wait) != 0)
+		goto fail;
+
+	if (len > MHLEN) {
+		MCLGETI(m, len, NULL, wait);
+		if (!ISSET(m->m_flags, M_EXT))
+			goto fail;
+	}
+
+	m->m_len = m->m_pkthdr.len = len;
+	m_adj(m, adj);
+	m_copydata(m0, 0, m0->m_pkthdr.len, mtod(m, caddr_t));
+
+	return (m);
+
+fail:
+	m_freem(m);
+	return (NULL);
+}
+
 #ifdef DDB
 void
 m_print(void *v,