From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx206.postini.com [74.125.245.206]) by kanga.kvack.org (Postfix) with SMTP id 77C2C6B0031 for ; Mon, 16 Sep 2013 18:10:29 -0400 (EDT) Date: Mon, 16 Sep 2013 18:09:57 -0400 From: Naoya Horiguchi Message-ID: <1379369397-ld8lbcn-mutt-n-horiguchi@ah.jp.nec.com> In-Reply-To: <3908561D78D1C84285E8C5FCA982C28F31CFD2D6@ORSMSX106.amr.corp.intel.com> References: <1379202839-23939-1-git-send-email-liwanp@linux.vnet.ibm.com> <20130915001352.GQ18242@two.firstfloor.org> <3908561D78D1C84285E8C5FCA982C28F31CFD2D6@ORSMSX106.amr.corp.intel.com> Subject: Re: [RESEND PATCH v2 1/4] mm/hwpoison: fix traverse hugetlbfs page to avoid printk flood Mime-Version: 1.0 Content-Type: text/plain; charset=iso-2022-jp Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: owner-linux-mm@kvack.org List-ID: To: "Luck, Tony" Cc: Andi Kleen , Wanpeng Li , Andrew Morton , "Wu, Fengguang" , "gong.chen@linux.intel.com" , "linux-mm@kvack.org" , "linux-kernel@vger.kernel.org" On Mon, Sep 16, 2013 at 09:50:06PM +0000, Luck, Tony wrote: > This is good - but the real solution is to stop poisoning entire huge pages ... they should > be broken into 4K pages and just one 4K page should be poisoned. > > Naoya Horiguchi: I thought that you were looking at this problem some months ago. Any progress? Sorry, I have no meaningful progress on this. Splitting hugepages is not a trivial operation, and introduce more complexity on hugetlbfs code. I don't hit on any usecase of it rather than memory failure, so I'm not sure that it's worth doing now. Thanks, Naoya Horiguchi -- 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