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=-3.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 EEB46C433DB for ; Tue, 2 Feb 2021 22:12:11 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 7ADC364F7F for ; Tue, 2 Feb 2021 22:12:11 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7ADC364F7F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id BF6D66B0006; Tue, 2 Feb 2021 17:12:10 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id BA7406B006C; Tue, 2 Feb 2021 17:12:10 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id A957D6B006E; Tue, 2 Feb 2021 17:12:10 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0136.hostedemail.com [216.40.44.136]) by kanga.kvack.org (Postfix) with ESMTP id 8F9C96B0006 for ; Tue, 2 Feb 2021 17:12:10 -0500 (EST) Received: from smtpin01.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 525598249980 for ; Tue, 2 Feb 2021 22:12:10 +0000 (UTC) X-FDA: 77774726820.01.coast01_5912103275ce Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin01.hostedemail.com (Postfix) with ESMTP id 2D97610049A72 for ; Tue, 2 Feb 2021 22:12:10 +0000 (UTC) X-HE-Tag: coast01_5912103275ce X-Filterd-Recvd-Size: 3706 Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) by imf47.hostedemail.com (Postfix) with ESMTP for ; Tue, 2 Feb 2021 22:12:08 +0000 (UTC) IronPort-SDR: oUWgIAt0VMmim5LY4TbatnXb+A0LGJXlW5qTYXsMBQtbhSkmJtlaEMNB75NyL2C4FYUlxeECkT Q1dqxGSUoRGg== X-IronPort-AV: E=McAfee;i="6000,8403,9883"; a="168618393" X-IronPort-AV: E=Sophos;i="5.79,396,1602572400"; d="scan'208";a="168618393" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Feb 2021 14:12:07 -0800 IronPort-SDR: w126W91cTxhj9RDnAU3n/zMgWaUBBy6DDJyPibqCceUyqSoGT4ZpmHZyvkdqEklQvd4+cWeeUX X0kaj3ozw/aw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.79,396,1602572400"; d="scan'208";a="579200629" Received: from fmsmsx605.amr.corp.intel.com ([10.18.126.85]) by fmsmga006.fm.intel.com with ESMTP; 02 Feb 2021 14:12:07 -0800 Received: from fmsmsx612.amr.corp.intel.com (10.18.126.92) by fmsmsx605.amr.corp.intel.com (10.18.126.85) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2106.2; Tue, 2 Feb 2021 14:12:06 -0800 Received: from fmsmsx610.amr.corp.intel.com (10.18.126.90) by fmsmsx612.amr.corp.intel.com (10.18.126.92) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2106.2; Tue, 2 Feb 2021 14:12:06 -0800 Received: from fmsmsx610.amr.corp.intel.com ([10.18.126.90]) by fmsmsx610.amr.corp.intel.com ([10.18.126.90]) with mapi id 15.01.2106.002; Tue, 2 Feb 2021 14:12:06 -0800 From: "Luck, Tony" To: Borislav Petkov CC: "x86@kernel.org" , Andrew Morton , Peter Zijlstra , "Darren Hart" , Andy Lutomirski , "linux-kernel@vger.kernel.org" , "linux-edac@vger.kernel.org" , "linux-mm@kvack.org" Subject: RE: [PATCH v5] x86/mce: Avoid infinite loop for copy from user recovery Thread-Topic: [PATCH v5] x86/mce: Avoid infinite loop for copy from user recovery Thread-Index: AQHW820jWhd/BlkCukOtPpk65S5gH6o6RPEAgAA7fACAA1zygIAF1CqAgAGTOQD//8zdUIAA3A0A//+LxOA= Date: Tue, 2 Feb 2021 22:12:06 +0000 Message-ID: <6e719355ea7f472e94b5bd45105c7ebe@intel.com> References: <20210119235759.GA9970@agluck-desk2.amr.corp.intel.com> <20210120121812.GF825@zn.tnic> <20210121210959.GA10304@agluck-desk2.amr.corp.intel.com> <20210125225509.GA7149@agluck-desk2.amr.corp.intel.com> <20210126110314.GC6514@zn.tnic> <20210126223605.GA14355@agluck-desk2.amr.corp.intel.com> <20210128175735.GB2120@zn.tnic> <20210201185812.GA54867@agluck-desk2.amr.corp.intel.com> <20210202110126.GB18075@zn.tnic> <20210202210600.GF18075@zn.tnic> In-Reply-To: <20210202210600.GF18075@zn.tnic> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: dlp-product: dlpe-windows dlp-reaction: no-action dlp-version: 11.5.1.3 x-originating-ip: [10.1.200.100] Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000003, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: PiBTbyB0aGF0ICJzeXN0ZW0gaGFuZyBvciBwYW5pYyIgd2hpY2ggdGhlIHZhbGlkYXRpb24gZm9s a3MgdHJpZ2dlcmVkLA0KPiB0aGF0IGNhbm5vdCBiZSByZXByb2R1Y2VkIGFueW1vcmU/IERpZCB0 aGV5IHJ1biB0aGUgbGF0ZXN0IHZlcnNpb24gb2YNCj4gdGhlIHBhdGNoPw0KDQpJIHdpbGwgZ2V0 IHRoZSB2YWxpZGF0aW9uIGZvbGtzIHRvIHJ1biB0aGUgbGF0ZXN0IHZlcnNpb24gKGFuZCBwbGF5 IGFyb3VuZCB3aXRoDQpoeXBlcnRocmVhZGluZyBpZiB0aGV5IHNlZSBwcm9ibGVtcykuDQoNCi1U b255DQo=