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Date:      Sun, 30 Apr 2017 01:21:55 +0200
From:      "O. Hartmann" <ohartmann@walstatt.org>
To:        AN <andy@neu.net>
Cc:        FreeBSD CURRENT <freebsd-current@freebsd.org>
Subject:   Re: DHCP/network issues
Message-ID:  <20170430012155.2f977934@thor.intern.walstatt.dynvpn.de>
In-Reply-To: <alpine.BSF.2.20.1704291905500.87985@mail.neu.net>
References:  <alpine.BSF.2.20.1703180925320.45657@mail.neu.net> <20170318152013.761c4999@thor.intern.walstatt.dynvpn.de> <alpine.BSF.2.20.1703181022190.45657@mail.neu.net> <20170318191142.083f279d@thor.intern.walstatt.dynvpn.de> <alpine.BSF.2.20.1704291905500.87985@mail.neu.net>

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Am Sat, 29 Apr 2017 19:07:06 -0400 (EDT)
AN <andy@neu.net> schrieb:

> Hi OH:
>=20
> On Sat, 18 Mar 2017, O. Hartmann wrote:
>=20
> > Date: Sat, 18 Mar 2017 19:11:42 +0100
> > From: O. Hartmann <ohartmann@walstatt.org>
> > To: AN <andy@neu.net>
> > Cc: O. Hartmann <ohartmann@walstatt.org>
> > Subject: Re: DHCP/network issues
> >=20
> > Am Sat, 18 Mar 2017 10:25:58 -0400 (EDT)
> > AN <andy@neu.net> schrieb:
> > =20
> >> Hi:
> >>
> >> On Sat, 18 Mar 2017, O. Hartmann wrote:
> >> =20
> >>> Date: Sat, 18 Mar 2017 15:20:13 +0100
> >>> From: O. Hartmann <ohartmann@walstatt.org>
> >>> To: AN <andy@neu.net>
> >>> Cc: freebsd-current@freebsd.org
> >>> Subject: Re: DHCP/network issues
> >>>
> >>> Am Sat, 18 Mar 2017 09:45:31 -0400 (EDT)
> >>> AN <andy@neu.net> schrieb:
> >>> =20
> >>>> Is anyone seeing network or DHCP issues with a recent update to
> >>>> 12-current?
> >>>>
> >>>> On new hardware
> >>>> Dual Core Celeron J1800 Bay Trail 2.4GHz, 2MB L2 Cache
> >>>> 2 Gigabit Ethernet Intel NIC ports
> >>>>
> >>>> I'm seeing the following issues:
> >>>>
> >>>> - install latest 12-current snapshot
> >>>> FreeBSD-12.0-CURRENT-amd64-20170316-r315413-memstick.img, try DHCP d=
uring
> >>>> install and it fails.  Setup networking manually and try to ping def=
ault gateway
> >>>> results in the response
> >>>> ping: sendto: Host is down =20
> >>>
> >>> Yes. Since IFLIB has been introduced, Intel NICs seem to be suffering=
 from not
> >>> working properly anymore. i217-LM, i350 and sibblings are affected fo=
r which I can
> >>> speak because we suffer the same problems here. Even if the NIC works=
, it dies
> >>> after some time under heavy I/O.
> >>> =20
> >>
> >> Thank you for the reply, I remember seeing your messages on the list a=
bout
> >> this now.  Is anyone trying to fix it, did you file a PR? =20
> >
> > I think, as you may already have read, some of the developers are aware=
 of this
> > problem. I haven't file a PR so far.
> >
> > Kind regards,
> >
> > oh
> >
> > =20
>=20
>=20
> Do you know if the problem with Intel Nic in 12-current has been fixed?
>=20
> Thanks,
>=20
> AN

Hello.

The problem still persists!! I have a Fujitsu Celsius M740, which uses a i2=
17 NIC. This
NIC freezes up while under heavy I/O.
In most cases, I can get it back online by bringing it first down and then =
up again with
ifconfig em0 down/up. But sometimes I have to reboot. I get some strange er=
rors on the
console about "RX/TX no buffer left" - I'm sorry to be not more specific, I=
'm not in the
lab at the moment where I have a more specific record of that problem. The =
i217 NIC
suffers from this problem after IFLIB has been introduced and I can trigger=
 the problem
easily whily rsyncing poudriere repository packages with the NFSv4 connecte=
d package
server.

I haven't checked on igb NICs (we also use i350 based dual-port NICs as I d=
o with some
private servers). But last time I pushed them very hard with I/O, I was abl=
e to freeze
them the same way.

I do not know whether someone is working on this, I recall having filed a P=
R on this, but
I was very unspecific, because I do not have further details and running CU=
RRENT with no
DEBUG features.

As of your question: it hasn't been fixed so far.

Kind regards,

Oliver

--=20
O. Hartmann

Ich widerspreche der Nutzung oder =C3=9Cbermittlung meiner Daten f=C3=BCr
Werbezwecke oder f=C3=BCr die Markt- oder Meinungsforschung (=C2=A7 28 Abs.=
 4 BDSG).

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