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]
Date:	Tue, 11 Dec 2012 03:03:13 +0100
From:	Andi Kleen <andi@...stfloor.org>
To:	Simon Jeons <simon.jeons@...il.com>
Cc:	Andi Kleen <andi@...stfloor.org>, Xishi Qiu <qiuxishi@...wei.com>,
	Wanpeng Li <liwanp@...ux.vnet.ibm.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	WuJianguo <wujianguo@...wei.com>,
	Liujiang <jiang.liu@...wei.com>, Vyacheslav.Dubeyko@...wei.com,
	Borislav Petkov <bp@...en8.de>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org, wency@...fujitsu.com
Subject: Re: [PATCH V2] MCE: fix an error of mce_bad_pages statistics

> IIUC, soft offlining will isolate and migrate hwpoisoned page, and this
> page will not be accessed by memory management subsystem until unpoison,
> correct?

No, soft offlining can still allow accesses for some time. It'll never kill
anything.

Hard tries much harder and will kill.

In some cases (unshrinkable kernel allocation) they end up doing the same
because there isn't any other alternative though. However these are
expected to only apply to a small percentage of pages in a typical
system.

-Andi
--
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/

Powered by blists - more mailing lists