linux-kernel - RE: [EXTERNAL] Re: [PATCH] EDAC: update edac printk wrappers to use printk

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Date:   Wed, 5 May 2021 23:13:30 +0000
From:   "Luck, Tony" <tony.luck@...el.com>
To:     Tyler Hicks <tyhicks@...ux.microsoft.com>,
        Borislav Petkov <bp@...en8.de>
CC:     wangglei <wangglei@...il.com>,
        "Lei Wang (DPLAT)" <Wang.Lei@...rosoft.com>,
        "mchehab@...nel.org" <mchehab@...nel.org>,
        "james.morse@....com" <james.morse@....com>,
        "rric@...nel.org" <rric@...nel.org>,
        "linux-edac@...r.kernel.org" <linux-edac@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Hang Li <hangl@...rosoft.com>,
        Brandon Waller <bwaller@...rosoft.com>
Subject: RE: [EXTERNAL] Re: [PATCH] EDAC: update edac printk wrappers to use
 printk_ratelimited.

>> What is your situation? ARM?
>
> Yes, though I'm not sure if those additional features are
> important/useful enough for us to generalize that driver. The main
> motivation here was just to prevent storage/network from being flooded
> by obviously-bad nodes that haven't been offlined yet. :) 
>
> Lei and others on cc will need to evaluate porting cec.c and what it
> will gain them. Thanks again.

Tyler,

You might also look at the x86 "storm" detection code (tl;dr version
"If error interrupts are coming too fast, turn off the interrupts and poll").

-Tony