linux-kernel - Re: [PATCH 09/10] MCE: run through processors with more severe problems first

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Date:	Fri, 10 Jun 2011 13:49:47 -0700
From:	Tony Luck <tony.luck@...el.com>
To:	Hidetoshi Seto <seto.hidetoshi@...fujitsu.com>
Cc:	Ingo Molnar <mingo@...e.hu>, Borislav Petkov <bp@...64.org>,
	linux-kernel@...r.kernel.org, "Huang, Ying" <ying.huang@...el.com>,
	Avi Kivity <avi@...hat.com>
Subject: Re: [PATCH 09/10] MCE: run through processors with more severe
 problems first

2011/6/10 Hidetoshi Seto <seto.hidetoshi@...fujitsu.com>:
> Well, I agree about the point that reordering is required to handle
> shared banks.

Thanks (and thanks for taking the time to look at all of this series
to provide such good feedback)

> I think it is better to put this change in early of the series.

Several of the early parts are position independent w.r.t. each
other - I'm not sure if there is some strong benefit to having
them in any particular order.

> I don't like to have multiple cpumasks here, notably one is just an
> inversion of another...

I wasn't completely thrilled with the way this turned out either.

> How about using severity-leveling?
> Pick cpus with PANIC level first, then AR, AO ...

That sounds like I need even more masks (or lists).

> Or how about checking rip in each mces_seen?

This is equivalent to what I did - but I think the code
will be cleaner. I'll give it a try.

-Tony
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