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Date:      Fri, 14 Apr 2017 13:41:31 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-net@FreeBSD.org
Subject:   [Bug 218653] Intel e1000 network link drops under high network load
Message-ID:  <bug-218653-2472-sY3NswfZzR@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-218653-2472@https.bugs.freebsd.org/bugzilla/>
References:  <bug-218653-2472@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D218653

--- Comment #1 from nn <freebsd@t.lastninja.net> ---
Further investigation and it happens during any kind of network load activi=
ty,
usually when traffic goes beyond 10Mbps.

So this happen when using portsnap, pkg install, etc.

I have also disabled tso4 and vlanhwtso. I think it made things a little mo=
re
bearable but the issue still persists.


# ifconfig em0
em0: flags=3D8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
=20=20=20=20=20=20=20
options=3D209b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,WOL_MAGIC>
        ether 00:30:48:8b:55:de
        inet 104.149.6.19 netmask 0xfffffff0 broadcast 104.149.6.31=20
        nd6 options=3D29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
        media: Ethernet autoselect (1000baseT <full-duplex>)
        status: active


[root@armakuni ~]# netstat -I em0
Name    Mtu Network       Address              Ipkts Ierrs Idrop    Opkts O=
errs
 Coll
em0    1500 <Link#1>      00:30:48:8b:55:de    88189   476     0    49789  =
   5
    0
em0       - 104.x.x.16/ xxx.xxx                86581     -     -    50046  =
   -
    -

--=20
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