netdev - Re: Bug#614622: linux-image-2.6.37-1-686: atl2 NIC claims NO CARRIER after suspend/resume; rmmod+insmod fixes the problem

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Date:	Tue, 22 Feb 2011 20:34:52 -0500
From:	Daniel Kahn Gillmor <dkg@...thhorseman.net>
To:	Xiong Huang <Xiong.Huang@...eros.com>
CC:	Ben Hutchings <ben@...adent.org.uk>,
	Jay Cliburn <jcliburn@...il.com>,
	Chris Snook <chris.snook@...il.com>,
	Jie Yang <Jie.Yang@...eros.com>,
	"614622@...s.debian.org" <614622@...s.debian.org>,
	netdev <netdev@...r.kernel.org>
Subject: Re: Bug#614622: linux-image-2.6.37-1-686: atl2 NIC claims NO CARRIER
 after suspend/resume; rmmod+insmod fixes the problem

Hi Xiong,

On 02/22/2011 08:22 PM, Xiong Huang wrote:
> after the onboard NIC claims NO Carrier after resuming from suspend-to-RAM, how about it if unplug then re-plug the cable ?

i've tried that, and it is not sufficient to remove the NO CARRIER flag
from the output of "ip link".  I've also tried power-cycling the 10/100
miniswitch on the other end of the ethernet cable, but no luck there either.

So far, the only thing i've found that clears the NO CARRIER state is to
remove and re-insert atl2.ko.

I remain open to other suggestions.  And thanks for the speedy followup!

	--dkg

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