Date: Mon, 15 Dec 1997 23:23:14 -0800 From: David Greenman <dg@root.com> To: mike@sentex.net Cc: questions@freebsd.org Subject: Re: fxp on 2.1-STABLE ? Message-ID: <199712160723.XAA02591@implode.root.com> In-Reply-To: Your message of "Mon, 15 Dec 1997 22:01:07 PST." <199712160601.WAA26956@hub.freebsd.org>
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> I was just wondering if there are any caveats using the fxp driver on > 2.1-STABLE ? Unfortunately I am unable to upgrade the machine at this time > to 2.2-STABLE, but I need more speed off the ethernet on this particular > machine. Yes, there is a rare problem caused by a bug in the 82557 chip that can cause the receiver to lock up if it gets certain types of garbage (such as might happen when a hub or switch is power cycled). The problem will also show up even without garbage when used in 10Mbps half duplex mode. I have a work around in the 2.2/3.0 version of the driver which doesn't exist in the 2.1 version. It would difficult to back-port the fix, so it hasn't been done. Wcarchive ran for 6 months with 2.1+fxp without ever having the problem show up, so I don't consider it serious. -DG David Greenman Core-team/Principal Architect, The FreeBSD Project
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