netdev - Re: [PATCH 1/1] bonding: restrict up state in 802.3ad mode

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Message-ID: <20160107075951.GD27753@unicorn.suse.cz>
Date:	Thu, 7 Jan 2016 08:59:52 +0100
From:	Michal Kubecek <mkubecek@...e.cz>
To:	zhuyj <zyjzyj2000@...il.com>
Cc:	emil.s.tantilov@...el.com, jay.vosburgh@...onical.com,
	vfalico@...il.com, gospo@...ulusnetworks.com,
	netdev@...r.kernel.org, boris.shteinbock@...driver.com
Subject: Re: [PATCH 1/1] bonding: restrict up state in 802.3ad mode

On Thu, Jan 07, 2016 at 03:37:26PM +0800, zhuyj wrote:
> >If I read this right, whenever this state (link up but speed/duplex
> >unknown) is entered, you'll keep writing this message into kernel log
> >every miimon milliseconds until something changes. I'm not sure how long
> >a NIC can stay in such state but it might get quite annoying (even more
> >if something really goes wrong and NIC stays that way which can't be
> >completely ruled out, IMHO).
> 
> Sure, Thanks a lot. I want to confirm link_up without link_speed. It
> is not usual. So I think this only lasts for several seconds.
> It is very important to us since it can help us to find the root cause.

For debugging purposes it's fine, of course. But this looked like an
officially submitted patch so I didn't like the idea of log spamming
(even one second could result in 10-100 messages and admins certainly
would hate that).

                                                       Michal Kubecek

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