linux-kernel - Re: [PATCH] x86/fault: speed up uffd-unit-test by 10x: rate-limit "MCE: Killing" logs

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Message-ID: <16ab2040-9d99-41b8-8b9d-39b0753533c6@nvidia.com>
Date: Tue, 7 May 2024 09:53:34 -0700
From: John Hubbard <jhubbard@...dia.com>
To: David Hildenbrand <david@...hat.com>, Andy Lutomirski <luto@...nel.org>
Cc: Dave Hansen <dave.hansen@...ux.intel.com>,
 Peter Zijlstra <peterz@...radead.org>, Thomas Gleixner <tglx@...utronix.de>,
 Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
 x86@...nel.org, "H . Peter Anvin" <hpa@...or.com>,
 LKML <linux-kernel@...r.kernel.org>, linux-mm@...ck.org,
 Peter Xu <peterx@...hat.com>, Axel Rasmussen <axelrasmussen@...gle.com>
Subject: Re: [PATCH] x86/fault: speed up uffd-unit-test by 10x: rate-limit
 "MCE: Killing" logs

On 5/7/24 9:43 AM, David Hildenbrand wrote:
> On 07.05.24 18:28, John Hubbard wrote:
>> On 5/7/24 1:13 AM, David Hildenbrand wrote:
..
>> I'd like to just do this patch almost as-is, just with a fixed up 
>> subject,
>> perhaps:
>>
>>       x86/fault: rate-limit to avoid flooding dmesg with "MCE: Killing"
>> reports
>>
>> Yes?
> 
> 
> Makes sense to me (and thanks for confirming that we don't need 
> complexity elsewhere).
> 
> I think we at least need "Fixes:" (not sure if stable is warranted as 
> well, 1b0a151c10a6d823f033023b9fdd9af72a89591b didn't CC stable).
> 
> Consider adding a link to the report in that thread.
> 
> Acked-by: David Hildenbrand <david@...hat.com>
> 

OK, there's enough changes to the commit description that I'll go ahead
and send a v2, with a new subject line, a Fixes:, your Ack, a link to
the other conversation, and maybe reword a bit based on your feedback
too.

Thanks for the review and the Ack!

thanks,
-- 
John Hubbard
NVIDIA