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Date:      Tue, 27 Mar 2001 18:08:58 -0500
From:      "Deepak Jain" <deepak@ai.net>
To:        "Jonathan Lemon" <jlemon@flugsvamp.com>, <net@FreeBSD.ORG>
Subject:   RE: FW: Network lockups on fxp0?
Message-ID:  <MLEFIJIDEIDHLFKGNEILOEEMCFAA.deepak@ai.net>
In-Reply-To: <200103272253.f2RMrfG52107@prism.flugsvamp.com>

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I know ifconfig up/down does not solve the problem. That was the first thing
tried.

No pattern detected at the network traffic or application level, though
machines have been known to go down simultaneously (same minute/second)
though they service unrelated tasks.

No flow control setting changes have been made. I didn't know fast ethernet
had reliable flow control.

Thanks for the insight,

Deepak Jain
AiNET

-----Original Message-----
From: owner-freebsd-net@FreeBSD.ORG
[mailto:owner-freebsd-net@FreeBSD.ORG]On Behalf Of Jonathan Lemon
Sent: Tuesday, March 27, 2001 5:54 PM
To: deepak@ai.net; net@FreeBSD.ORG
Subject: Re: FW: Network lockups on fxp0?


In article <MLEFIJIDEIDHLFKGNEILGEEHCFAA.deepak@ai.net> you write:
>>fxp0: SCB timeout
>>fxp0: DMA timeout
>>(repeating)

SCB timeout comes about because the chip is refusing to accept
any more commands; in this case, it probably is wedged.  Is there
any pattern to this?  Do you happen to have hardware flowcontrol
enabled?  Does an ifconfig up/down fix the problem?
--
Jonathan

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