linux-kernel - Re: [PATCH] x86, MCE: Flesh out when to panic comment

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Message-ID: <CALCETrVqVX_P75vLLR6A1iBbjzMG-hHmTEUC+_hSpa9rHWcRaw@mail.gmail.com>
Date:	Mon, 26 May 2014 10:59:33 -0700
From:	Andy Lutomirski <luto@...capital.net>
To:	Borislav Petkov <bp@...en8.de>
Cc:	Jiri Kosina <jkosina@...e.cz>, "H. Peter Anvin" <hpa@...or.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Steven Rostedt <rostedt@...dmis.org>,
	Andi Kleen <andi@...stfloor.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...nel.org>,
	"Luck, Tony" <tony.luck@...el.com>
Subject: Re: [PATCH] x86, MCE: Flesh out when to panic comment

On Mon, May 26, 2014 at 10:51 AM, Borislav Petkov <bp@...en8.de> wrote:
> On Mon, May 26, 2014 at 09:47:38AM -0700, Andy Lutomirski wrote:
>> It may be worth at least pointing out that mce_severity looks at
>> whether we faulted from kernel context. I missed that the first time
>> around because mce_severity doesn't take a pt_regs pointer.
>
> Right, but next time we talk about a different aspect which isn't
> commented on in the handler, we'd have to add to it again, until we've
> rewritten the whole function in pseudo code.
>
> I think simply pointing to the function which decides the fate of the
> machine based on the MCE severity is enough - people can then go and
> stare at it, albeit with some struggle.

Fair enough.

>
> --
> Regards/Gruss,
>     Boris.
>
> Sent from a fat crate under my desk. Formatting is fine.
> --



-- 
Andy Lutomirski
AMA Capital Management, LLC
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