From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 98A70C433DF for ; Wed, 24 Jun 2020 20:57:45 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 551E72070A for ; Wed, 24 Jun 2020 20:57:45 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="bjqrym/o" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 551E72070A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=oracle.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id E056F6B0010; Wed, 24 Jun 2020 16:57:44 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id DB5906B0022; Wed, 24 Jun 2020 16:57:44 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id CA3D66B0023; Wed, 24 Jun 2020 16:57:44 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0185.hostedemail.com [216.40.44.185]) by kanga.kvack.org (Postfix) with ESMTP id AD94D6B0010 for ; Wed, 24 Jun 2020 16:57:44 -0400 (EDT) Received: from smtpin29.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id 1CB6A2DFC for ; Wed, 24 Jun 2020 20:57:44 +0000 (UTC) X-FDA: 76965316848.29.dirt08_25102a526e47 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin29.hostedemail.com (Postfix) with ESMTP id E509518086CBE for ; Wed, 24 Jun 2020 20:57:43 +0000 (UTC) X-HE-Tag: dirt08_25102a526e47 X-Filterd-Recvd-Size: 4519 Received: from userp2120.oracle.com (userp2120.oracle.com [156.151.31.85]) by imf14.hostedemail.com (Postfix) with ESMTP for ; Wed, 24 Jun 2020 20:57:43 +0000 (UTC) Received: from pps.filterd (userp2120.oracle.com [127.0.0.1]) by userp2120.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 05OKpunX185741; Wed, 24 Jun 2020 20:57:24 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=subject : to : cc : references : from : message-id : date : mime-version : in-reply-to : content-type : content-transfer-encoding; s=corp-2020-01-29; bh=ty3w8xpTnMPzIpUtbRqIPAJ/vjriMvgnVtCYrWWp+Nw=; b=bjqrym/ooenwrzyTjXESct92fVOKuaUBNskCLklrc99NYwiaNvsNLg4Lbw/IFmvxQaGe pse19I9W+rRq54B4mcw2SFOuzJPl5Y1nT9P9Kuo7S2mdR2R6QSgiQvEQq7N1lSaRMfft pBneuAnd32pGRMQGGVSD5R9eHrZAdn0GClzHoE/lRaLpW6KOiuAVJ5uZk6LGu6fEwlOm nfsF7Lib67vNbajgwo+X8ykrRVUcrDPrtwrbvJ+bdFK7FWOo5B+wDItyW1g7LOJBxhAc KNn94p9bQWwAIm4m9UgBGxSteYOy4aiFo0TyFMf8hNRudKQMYCAVwNUgXZk9h4nKFtqr gQ== Received: from aserp3020.oracle.com (aserp3020.oracle.com [141.146.126.70]) by userp2120.oracle.com with ESMTP id 31uustn581-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 24 Jun 2020 20:57:23 +0000 Received: from pps.filterd (aserp3020.oracle.com [127.0.0.1]) by aserp3020.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 05OKsABf090852; Wed, 24 Jun 2020 20:57:23 GMT Received: from userv0122.oracle.com (userv0122.oracle.com [156.151.31.75]) by aserp3020.oracle.com with ESMTP id 31uur7apw0-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 24 Jun 2020 20:57:23 +0000 Received: from abhmp0014.oracle.com (abhmp0014.oracle.com [141.146.116.20]) by userv0122.oracle.com (8.14.4/8.14.4) with ESMTP id 05OKvJV4029857; Wed, 24 Jun 2020 20:57:20 GMT Received: from [10.159.255.168] (/10.159.255.168) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 24 Jun 2020 20:57:19 +0000 Subject: Re: [RFC] Make the memory failure blast radius more precise To: David Rientjes , "Luck, Tony" , Mike Kravetz , "Dr. David Alan Gilbert" , Peter Xu , Andrea Arcangeli Cc: Matthew Wilcox , Borislav Petkov , Naoya Horiguchi , linux-edac@vger.kernel.org, linux-mm@kvack.org, linux-nvdimm@lists.01.org, "Darrick J. Wong" References: <20200623201745.GG21350@casper.infradead.org> <20200623220412.GA21232@agluck-desk2.amr.corp.intel.com> From: Jane Chu Organization: Oracle Corporation Message-ID: <19ffec14-28c7-fddc-3042-6ccb8d4e83fa@oracle.com> Date: Wed, 24 Jun 2020 13:57:17 -0700 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.9.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9662 signatures=668680 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 spamscore=0 adultscore=0 malwarescore=0 mlxscore=0 mlxlogscore=999 phishscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2006240135 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9662 signatures=668680 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxscore=0 mlxlogscore=999 cotscore=-2147483648 adultscore=0 bulkscore=0 spamscore=0 phishscore=0 suspectscore=0 priorityscore=1501 lowpriorityscore=0 clxscore=1011 impostorscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2006240135 X-Rspamd-Queue-Id: E509518086CBE X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam04 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Hi, David, On 6/23/2020 9:32 PM, David Rientjes wrote: > I don't want to hijack Matthew's thread which is primarily about DAX, but > did get intrigued by your concerns about hugetlbfs page poisoning. We can > fork the thread off here to discuss only the hugetlb application of this > if it makes sense to you or you'd like to collaborate on it as well. hugetlbfs is not supported in DAX, are you planning to add support? thanks, -jane