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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5E4ACC433EF for ; Tue, 9 Nov 2021 19:48:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 369D261175 for ; Tue, 9 Nov 2021 19:48:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230455AbhKITvG (ORCPT ); Tue, 9 Nov 2021 14:51:06 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45078 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230136AbhKITvG (ORCPT ); Tue, 9 Nov 2021 14:51:06 -0500 Received: from mail.skyhub.de (mail.skyhub.de [IPv6:2a01:4f8:190:11c2::b:1457]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 32F15C061764; Tue, 9 Nov 2021 11:48:20 -0800 (PST) Received: from zn.tnic (p200300ec2f18aa00db849a68730b2e8f.dip0.t-ipconnect.de [IPv6:2003:ec:2f18:aa00:db84:9a68:730b:2e8f]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.skyhub.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id F34671EC0532; Tue, 9 Nov 2021 20:48:17 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1636487298; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:in-reply-to:in-reply-to: references:references; bh=zfZ2iWFL4Fzq+K7vcXar31juA1wrp691cgDQW8C2NpI=; b=OG0YGadcoZVaT0jFItmVtrUGplmifxcdLzCX5IjNQ9C6zMyshN5iBmlv0GNmBLUsFqk2Wx PxLWpZ3Wz+aFpXwPDbCzJFqaDAKS3BkqXk9oBinAzcM7WdyFBF0wk5K2T6rMeX/1EEZ8S/ dHH90AK+SKAuS8LFdqZYWObw2bhFpDQ= Date: Tue, 9 Nov 2021 20:48:11 +0100 From: Borislav Petkov To: "Luck, Tony" Cc: Zhaolong Zhang , "x86@kernel.org" , "linux-edac@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "Paul E . McKenney" Subject: Re: [PATCH] x86/mce: drop cpu_missing since we have more capable mce_missing_cpus Message-ID: References: <572d793c.f2e.17cede4cbf0.Coremail.zhangzl2013@126.com> <20211108082832.142436-1-zhangzl2013@126.com> <4d526023.3cde.17cff097bab.Coremail.zhangzl2013@126.com> <4a77f582.4434.17cff975224.Coremail.zhangzl2013@126.com> <776fad3d.3369.17d03d2c2ba.Coremail.zhangzl2013@126.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-edac@vger.kernel.org On Tue, Nov 09, 2021 at 04:06:48PM +0000, Luck, Tony wrote: > Just a note that skipping the mce_panic() here isn't going to help > much. With some CPUs stuck not responding to #MC the system is going > to lock up or crash for other timeouts in the next few seconds. Yeh, I spent a couple of minutes today staring at this ->tolerant thing and wondering why we need it at all. I wouldn't mind ripping it altogether unless you're using it for testing or so. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette