linux-kernel - Re: [rfc] suppress excessive AER output

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Message-ID: <CAC=cRTM_CZfstvbpdCRrLV-VH0VC=u6r10L+Ox2G4LWomXVauA@mail.gmail.com>
Date:	Thu, 4 Aug 2011 14:45:01 +0800
From:	huang ying <huang.ying.caritas@...il.com>
To:	Dave Jones <davej@...hat.com>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	tom.l.nguyen@...el.com, yanmin.zhang@...el.com
Subject: Re: [rfc] suppress excessive AER output

On Thu, Aug 4, 2011 at 6:34 AM, Dave Jones <davej@...hat.com> wrote:
> I have a machine that has developed some kind of problem with
> its onboard ethernet.  It still boots, but spewed almost 1.5G of text
> (2381585 instances of the warning below) before we realised what
> was going on, and blacklisted the igb driver.
>
> Is it worth logging every single error when we're flooding like this ?
> It seems unlikely that we'll find useful information in amongst that much data
> that wasn't already in the first 100 instances.
>
> I picked 100 in the (untested) example patch below arbitarily, but the exact
> value could be smaller, or slightly bigger..
>
> could we do something like this maybe ?

Why not use __ratelimit to implement this feature?

Best Regards,
Huang Ying
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