linux-kernel - Re: [Patch 0/2] Exclude hwpoison page from vmcore dump

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Message-ID: <50912CFB.5000508@hitachi.com>
Date:	Wed, 31 Oct 2012 22:51:55 +0900
From:	Mitsuhiro Tanino <mitsuhiro.tanino.gm@...achi.com>
To:	Vivek Goyal <vgoyal@...hat.com>
Cc:	kexec@...ts.infradead.org, linux-kernel@...r.kernel.org,
	"Eric W. Biederman" <ebiederm@...ssion.com>
Subject: Re: [Patch 0/2] Exclude hwpoison page from vmcore dump

Hi Vivek,

(2012/10/30 23:37), Vivek Goyal wrote:
> Why to introduce this option "-p"? Until and unless there are serious
> side effects, this should be default functionality. Isn't it? Who would
> like to touch/save poisoned pages and run into MCE?

Thank you for your review of my patch.

In my understanding, hwpoison is a function which is only supported at
high end servers and most of users do not use this function.
Therefore, I think this functionality was better for option.

On the other hand, as you say, nobody wants to touch/save poisoned pages
and run into MCE, and it is desirable for users to exclude hwpoison pages
automatically. I agree with you.

I will post fixed patch without "-p" option. Please help to review it.

Subject: 
[PATCH 0/2 v2] Exclude hwpoison page from vmcore dump
[PATCH 1/2 v2] makedumpfile: Add a default action to exclude hwpoison page from vmcore
[PATCH 2/2 v2] kexec: Export PG_hwpoison flag into vmcoreinfo

Regards,
Mitshuhiro Tanino (mitsuhiro.tanino.gm@...achi.com)

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