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=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, LOTS_OF_MONEY,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham 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 7487CC63798 for ; Wed, 18 Nov 2020 15:16:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 24BE724763 for ; Wed, 18 Nov 2020 15:16:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727265AbgKRPQG (ORCPT ); Wed, 18 Nov 2020 10:16:06 -0500 Received: from mga12.intel.com ([192.55.52.136]:8044 "EHLO mga12.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725943AbgKRPQF (ORCPT ); Wed, 18 Nov 2020 10:16:05 -0500 IronPort-SDR: HYv+NxmuI3Dz4yzt6kBd0qUlAe06yEp/sydXK6TufaB/vjVlU/N/tAfU5oa8C6d72dclTo/eDL 1RKBYjGs8PlA== X-IronPort-AV: E=McAfee;i="6000,8403,9808"; a="150399368" X-IronPort-AV: E=Sophos;i="5.77,486,1596524400"; d="scan'208";a="150399368" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Nov 2020 07:16:05 -0800 IronPort-SDR: FhT7lQxgVb3O+FEWaDT+DGgvl5M7rYr2Jw/7nkzcwdHVSZZFiGNSsXSFvavNBSBPlWoMCVPaHZ TOaOPvn+1F2A== X-IronPort-AV: E=Sophos;i="5.77,486,1596524400"; d="scan'208";a="359492116" Received: from paolonig001.ir.intel.com ([163.33.183.93]) by fmsmga004-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Nov 2020 07:16:03 -0800 From: Gabriele Paoloni To: tony.luck@intel.com, bp@alien8.de, tglx@linutronix.de, mingo@redhat.com, x86@kernel.org, hpa@zytor.com, linux-edac@vger.kernel.org, linux-kernel@vger.kernel.org Cc: gabriele.paoloni@intel.com, linux-safety@lists.elisa.tech Subject: [PATCH 3/4] x86/mce: for LMCE panic only if mca_cfg.tolerant < 3 Date: Wed, 18 Nov 2020 15:15:51 +0000 Message-Id: <20201118151552.1412-4-gabriele.paoloni@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201118151552.1412-1-gabriele.paoloni@intel.com> References: <20201118151552.1412-1-gabriele.paoloni@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Right now for LMCE if no_way_out is set mce_panic() is called regardless of mca_cfg.tolerant. This is not correct as if mca_cfg.tolerant = 3 we should never panic. Signed-off-by: Gabriele Paoloni Reviewed-by: Tony Luck --- arch/x86/kernel/cpu/mce/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kernel/cpu/mce/core.c b/arch/x86/kernel/cpu/mce/core.c index e025ff04438f..d16cbb05b09c 100644 --- a/arch/x86/kernel/cpu/mce/core.c +++ b/arch/x86/kernel/cpu/mce/core.c @@ -1367,7 +1367,7 @@ noinstr void do_machine_check(struct pt_regs *regs) * to see it will clear it. */ if (lmce) { - if (no_way_out) + if (no_way_out && mca_cfg.tolerant < 3) mce_panic("Fatal local machine check", &m, msg); } else { order = mce_start(&no_way_out); -- 2.20.1 --------------------------------------------------------------------- INTEL CORPORATION ITALIA S.p.A. con unico socio Sede: Milanofiori Palazzo E 4 CAP 20094 Assago (MI) Capitale Sociale Euro 104.000,00 interamente versato Partita I.V.A. e Codice Fiscale 04236760155 Repertorio Economico Amministrativo n. 997124 Registro delle Imprese di Milano nr. 183983/5281/33 Soggetta ad attivita' di direzione e coordinamento di INTEL CORPORATION, USA This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies.