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Date:      Mon, 06 May 2002 22:55:47 +0000
From:      Paul Dlug <paul@nerdlabs.com>
To:        John Polstra <jdp@polstra.com>, stable@FreeBSD.ORG
Cc:        kendall@jedis.com
Subject:   Re: fxp0: SCB timeout
Message-ID:  <200205062255.48215.paul@nerdlabs.com>
In-Reply-To: <200205070215.g472Fmb07039@vashon.polstra.com>
References:  <000a01c1f51f$5ea50970$2501a8c0@fmepro.com> <200205070215.g472Fmb07039@vashon.polstra.com>

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> Are you running an SMP kernel?  I saw this problem the first and only
> time after I added a second CPU and switched to an SMP kernel.  That's
> not enough data points to form any conclusion.

The motherboard supports SMP but I only have a single CPU in so I disabled the 
SMP options.

> The other unusual thing that was going on when this happened to me was
> that I was really hammering the system via a gigabit NIC in one of the
> PCI slots at the time.

The PCI slots are free, I'm only using the onboard NIC's. It's not pushing 
that much traffic, it's just a webserver (and not at all heavily loaded). 

If the general consensus is that adding a PCI NIC and disabling the onboard 
will fix it, I'll go that route. But I'd rather try to understand what the 
actual problem is and hopefully get a fix for it. Does anyone have 
suggestions for further debugging?

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