em(4) problems.

Hi.

I've problems with em(4) and IPSEC/FAST_IPSEC and TCP_STREAM netperf test.
While running netperf tests between two FreeBSD machines directly connected
em0 goes down once every few minutes and I've no idea why.
Without IPSEC everything works just fine, with IPSEC/FAST_IPSEC it also
works fine but for other tests (UDP_STREAM, TCP_RR, UDP_RR).

	client# ifconfig em0
	em0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
	        options=3<RXCSUM,TXCSUM>
	        inet 192.168.50.2 netmask 0xffff0000 broadcast 192.168.255.255
	        ether 00:04:23:88:63:10
	        media: Ethernet autoselect (1000baseTX <full-duplex>)
	        status: active
	client# netstat -in
	Name    Mtu Network       Address              Ipkts Ierrs    Opkts Oerrs  Coll
	em0       0 <Link#1>      00:04:23:88:63:10        0 4852203        0     0 342995372
	em0       0 192.168.0/16  192.168.50.2       8166424     -  4852201     -     -

	server# ifconfig em0
	em0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
	        options=3<RXCSUM,TXCSUM>
	        inet 192.168.0.1 netmask 0xffff0000 broadcast 192.168.255.255
	        ether 00:0c:76:20:b9:bb
	        media: Ethernet autoselect (1000baseTX <full-duplex>)
	        status: active
	server# netstat -in
	Name    Mtu Network       Address              Ipkts Ierrs    Opkts Oerrs  Coll
	em0       0 <Link#1>      00:0c:76:20:b9:bb        0 2722131        0     0 2880618854
	em0       0 192.168.0/16  192.168.0.1       14556076     -  2722142     -     -

Any ideas?

-- 
Pawel Jakub Dawidek                       http://www.FreeBSD.org
pjd_at_FreeBSD.org                           http://garage.freebsd.pl
FreeBSD committer                         Am I Evil? Yes, I Am!