From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx123.postini.com [74.125.245.123]) by kanga.kvack.org (Postfix) with SMTP id 763E76B002B for ; Mon, 10 Dec 2012 21:58:59 -0500 (EST) Date: Tue, 11 Dec 2012 03:58:57 +0100 From: Andi Kleen Subject: Re: [PATCH V2] MCE: fix an error of mce_bad_pages statistics Message-ID: <20121211025857.GX16230@one.firstfloor.org> References: <50C1AD6D.7010709@huawei.com> <20121207141102.4fda582d.akpm@linux-foundation.org> <20121210083342.GA31670@hacker.(null)> <50C5A62A.6030401@huawei.com> <1355136423.1700.2.camel@kernel.cn.ibm.com> <50C5C4A2.2070002@huawei.com> <20121210153805.GS16230@one.firstfloor.org> <50C6997C.1080702@huawei.com> <20121211024522.GA10505@localhost> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20121211024522.GA10505@localhost> Sender: owner-linux-mm@kvack.org List-ID: To: Fengguang Wu Cc: Xishi Qiu , Andi Kleen , Simon Jeons , Wanpeng Li , Andrew Morton , WuJianguo , Liujiang , Vyacheslav.Dubeyko@huawei.com, Borislav Petkov , linux-mm@kvack.org, linux-kernel@vger.kernel.org, wency@cn.fujitsu.com, Hanjun Guo > That sounds like overkill. There are not so many free pages in a > typical server system. As Fengguang said -- memory error handling is tricky. Lots of things could be done in theory, but they all have a cost in testing and maintenance. In general they are only worth doing if the situation is common and represents a significant percentage of the total pages of a relevant server workload. -Andi -- ak@linux.intel.com -- Speaking for myself only. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org