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Date:      Tue, 21 Feb 2006 11:51:11 -0000 (GMT)
From:      "Chris Howells" <howells@kde.org>
To:        "Jack Vogel" <jfvogel@gmail.com>
Cc:        freebsd-net@freebsd.org, Chris Howells <howells@kde.org>
Subject:   Re: Which motherboards work well with em(4)?
Message-ID:  <57314.192.168.0.1.1140522671.squirrel@webmail.devrandom.org.uk>
In-Reply-To: <2a41acea0602202023q1688f135ld364e907c7a6b04@mail.gmail.com>
References:  <63472.192.168.0.1.1140456976.squirrel@webmail.devrandom.org.uk>  <2a41acea0602201104v1c160788rf9db6bb5c96e7b34@mail.gmail.com>  <51496.192.168.0.1.1140464280.squirrel@webmail.devrandom.org.uk>  <2a41acea0602201749t48930ec1pbb90fb9656aa6297@mail.gmail.com>  <54431.192.168.0.1.1140488488.squirrel@webmail.devrandom.org.uk> <2a41acea0602202023q1688f135ld364e907c7a6b04@mail.gmail.com>

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Hi Jack,

On Tue, February 21, 2006 4:23 am, Jack Vogel wrote:

>> Since they are different ethernet controllers I am wondering if it could
>> be the motherboard failing to deal with the interrupts, or maybe even
>> the
>> ethernet switch. Polling appears not to help though. The switch is a
>> cheap
>> SMC EZ 5 port, I've been comtemplating getting a cheap 5 port 3Com
>> switch
>> from eBay to test.
>
> This is always a real possibility, however you have two systems with
> Intel gig nics and both are having this happen, so unless the motherboards
> are identical that seems unlikely.

The systems do have the same motherboards and processors -- Asus A7V8X-X
and a Duron 1800. The other components differ slightly, e.g. one has a
SCSI card and tape drive and more RAM, but there isn't a vast difference.
I believe they both have the most recent BIOSes.

> Hmm, so its not hanging on transmit, its on receive according to what
> you are describing? Is that consistent?

Oh yes sorry, should have clarified that. Correct, it hangs on receive,
consistently -- never ever on transmit. Though the conditions to cause it
to hang on rx are sadly somewhat unpredictable. I haven't seen the problem
really since before Christmas until recently when I've seen it quite a
lot. But then again I am transferring more data around at the moment due
to trying to recover from a hard disk failure in the 6.1-pre machine.

-- 
Cheers, Chris Howells -- howells@kde.org
Web: http://www.kde.org.uk, PGP ID: 0x33795A2C
KDE/Qt Developer: http://www.kde.org






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