D5693.diff
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	Index: head/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c
	===================================================================
	--- head/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c
	+++ head/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c
	@@ -1260,8 +1260,10 @@
	return (0);
	} else if (packet->tot_data_buf_len <= MHLEN) {
	m_new = m_gethdr(M_NOWAIT, MT_DATA);
	- if (m_new == NULL)
	+ if (m_new == NULL) {
	+ if_inc_counter(ifp, IFCOUNTER_IQDROPS, 1);
	return (0);
	+ }
	memcpy(mtod(m_new, void *), packet->data,
	packet->tot_data_buf_len);
	m_new->m_pkthdr.len = m_new->m_len = packet->tot_data_buf_len;
	@@ -1281,7 +1283,7 @@

	m_new = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, size);
	if (m_new == NULL) {
	- if_printf(ifp, "alloc mbuf failed.\n");
	+ if_inc_counter(ifp, IFCOUNTER_IQDROPS, 1);
	return (0);
	}