linux-kernel - Re: [PATCH 4] mce: acpi/apei: Add a sysctl to control page offlining on firmware report

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Message-ID: <20130703144641.GC13951@pd.tnic>
Date:	Wed, 3 Jul 2013 16:46:42 +0200
From:	Borislav Petkov <bp@...en8.de>
To:	"Naveen N. Rao" <naveen.n.rao@...ux.vnet.ibm.com>
Cc:	tony.luck@...el.com, ananth@...ibm.com, masbock@...ux.vnet.ibm.com,
	lcm@...ux.vnet.ibm.com, linux-kernel@...r.kernel.org,
	linux-acpi@...r.kernel.org, ying.huang@...el.com
Subject: Re: [PATCH 4] mce: acpi/apei: Add a sysctl to control page offlining
 on firmware report

On Tue, Jul 02, 2013 at 06:24:00PM +0530, Naveen N. Rao wrote:
> I am adding another patch here to disable page offlining in case the firmware
> starts acting up.
> 
> Thanks,
> Naveen
> 
> --
> 
> Add a sysctl memory_failure_soft_offline to control what is done on receipt of
> firmware ghes notification for a corrected error. By default, kernel tries
> to soft-offline the page immediately. If set to 0, no action is taken.

What is the rationale for that? Are we adding it just in case, as a
chicken bit or do you have a specific case?

If the second, we'd love to hear about it in the commit message. :)

Thanks.

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
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