Subject: Re: "dribbling bit"
To: None <tls@rek.tjls.com>
From: Michael Richardson <mcr@sandelman.ottawa.on.ca>
List: tech-net
Date: 01/21/2003 12:59:56
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>>>>> "Thor" == Thor Lancelot Simon <tls@rek.tjls.com> writes:
>> My firewall has started to do:
>>
>> Jan 20 10:35:20 bud /netbsd: tlp0: receive error: dribbling bit
>> Jan 20 10:35:20 bud /netbsd: tlp0: receive error: CRC error
>> Jan 20 10:35:22 bud /netbsd: tlp0: receive error: dribbling bit
>> Jan 20 10:35:22 bud /netbsd: tlp0: receive error: CRC error
Thor> This is usually a symptom of a duplex mismatch or MII configuration
Thor> problem. Unfortunately, the various 21x4x and clones use a truly
Thor> wild variety of physical interface mechanisms and don't present a
Thor> uniform interface for configuring them; worse, some of them don't
Thor> do Nway negotiation in hardware but require a software state
Thor> machine. Our driver is a lot better than it was, but doesn't
Thor> always get it right, and with some chips it's worse than that: the
Thor> driver will somehow get out of sync after everything's worked fine
Thor> for a long time.
okay, fair enough.
a) This is a real 21143 chip.
b) this is a straight cable to a GVC ADSL modem. I can force things to
10baseT, instead of auto, if you think that may help get around nway.
] ON HUMILITY: to err is human. To moo, bovine. | firewalls [
] Michael Richardson, Sandelman Software Works, Ottawa, ON |net architect[
] mcr@sandelman.ottawa.on.ca http://www.sandelman.ottawa.on.ca/ |device driver[
] panic("Just another Debian GNU/Linux using, kernel hacking, security guy"); [
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