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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <51D44752.3000303@linux.vnet.ibm.com>
Date:	Wed, 03 Jul 2013 21:16:26 +0530
From:	"Naveen N. Rao" <naveen.n.rao@...ux.vnet.ibm.com>
To:	Borislav Petkov <bp@...en8.de>
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 07/03/2013 08:16 PM, Borislav Petkov wrote:
> 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. :)

Nope, this is a just-in-case thing. I think you or Tony asked to have 
this in a previous discussion so that we're covered if firmware starts 
acting up. Other than that, I'm ok if this is left out.


Thanks,
Naveen

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/