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Date:      Thu, 26 Aug 2010 14:27:57 -0700
From:      Jeremy Chadwick <freebsd@jdc.parodius.com>
To:        Philipp Wuensche <cryx-freebsd@h3q.com>
Cc:        PYUN YongHyeon <pyunyh@gmail.com>, freebsd-stable@freebsd.org, Jack Vogel <jfvogel@gmail.com>
Subject:   Re: Crashes on X7SPE-HF with em
Message-ID:  <20100826212757.GA3391@icarus.home.lan>
In-Reply-To: <4C76A226.5070302@h3q.com>
References:  <4C744DC4.3070100@h3q.com> <201008250109.o7P19uEp046002@lava.sentex.ca> <4C76A226.5070302@h3q.com>

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On Thu, Aug 26, 2010 at 07:19:34PM +0200, Philipp Wuensche wrote:
> Mike Tancsa wrote:
> > At 06:55 PM 8/24/2010, Philipp Wuensche wrote:
> >> Hi,
> >>
> >> I'm having trouble with a system on a Supermicro X7SPE-HF, it crashes
> >> about once a day. I haven't found a way to trigger this yet.
> >>
> >> The system has a bunch of VLANs on em1, it does routing between them.
> >>
> >> Currently its running 8-STABLE but it happend with 8.1-RELEASE too.
> > 
> > I dont think its the same problem you are seeing, but the patch in
> > <http://lists.freebsd.org/pipermail/freebsd-stable/2010-August/058296.html>http://lists.freebsd.org/pipermail/freebsd-stable/2010-August/058296.html
> > 
> > might be worth a try.
> 
> Didn't help, crashed again but differently.
> 
> I'm getting a lot of "discard frame w/o packet header" on the em devices
> too.
> 
> I now disabled TSO, RX- and TXCSUM on the device to see if the problems
> comes from this direction.

CC'ing Jack Vogel of Intel and Yong-Hyeon PYUN who might have some
ideas.  OP's backtrace is here:

http://lists.freebsd.org/pipermail/freebsd-stable/2010-August/058425.html

Philipp, can you please provide the following output?

* dmesg | egrep 'em[0-9]'
* uname -a         (you can XXX out the machine name if need be)
* pciconf -lvc     (only include the em(4) items please)
* vmstat -i

Thanks.

-- 
| Jeremy Chadwick                                   jdc@parodius.com |
| Parodius Networking                       http://www.parodius.com/ |
| UNIX Systems Administrator                  Mountain View, CA, USA |
| Making life hard for others since 1977.              PGP: 4BD6C0CB |




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