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=-0.7 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED 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 E50DAC2BA83 for ; Thu, 13 Feb 2020 16:05:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BC6D021734 for ; Thu, 13 Feb 2020 16:05:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=amacapital-net.20150623.gappssmtp.com header.i=@amacapital-net.20150623.gappssmtp.com header.b="vN9o+Q3y" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730136AbgBMQFP (ORCPT ); Thu, 13 Feb 2020 11:05:15 -0500 Received: from mail-pg1-f194.google.com ([209.85.215.194]:34035 "EHLO mail-pg1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388260AbgBMQFN (ORCPT ); Thu, 13 Feb 2020 11:05:13 -0500 Received: by mail-pg1-f194.google.com with SMTP id j4so3346378pgi.1 for ; Thu, 13 Feb 2020 08:05:12 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amacapital-net.20150623.gappssmtp.com; s=20150623; h=content-transfer-encoding:from:mime-version:subject:date:message-id :references:cc:in-reply-to:to; bh=Nw7URh+UMCPI53aY8KronYHaSIRJakz2tA+QVeHRq24=; b=vN9o+Q3ylXls7dbXZf7pb/BIPUAI8Rq7Vvzs+fg7G1A1zZ0N40p1LKY63k5fzF8dE/ SUM+YiJ9jqaU/EER7RCFRbv+4s5Dl+QygoZOI0MFB4v6UYZ09sSYMuLr0IWHzE/o1FPm 8oK92WL0KjzSl4FX/VGKfQ58yvvzeV/A0n6ChZ9Pf48ydntQl2k3DZ7/ffrpC2IJUEJb f1ec9bn9QARh8hezJM8WiEBIvFtcYq7OIdfUvK2JDNR2ZwV0+QUDK8XqMNwZWlTpBzGR edXS6d7DKgctWboMSFvd3oIPwmZeo+q81rh28UocbZhWsx+6w5ryC1WhQgKKqTZ7i/78 hU+Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:content-transfer-encoding:from:mime-version :subject:date:message-id:references:cc:in-reply-to:to; bh=Nw7URh+UMCPI53aY8KronYHaSIRJakz2tA+QVeHRq24=; b=oVHWscS63MbjVV2C0/FWOItsyG67pXb5+dEML5XtPrVqRvkQl3u0OzaWEwPgVEzLWZ 2gBZHsjzpHArUQgE88/keqHvKzo0Y0YcbkPVjM7z4PFmqSqUzdwGf0IBARkVB5/2BzUA YVE2RKyGnzx2xXY8Q5KZkNHay/XZkmSqVI9pNNsBqPXU/fu0FdpCTDDNZWkDttrnX84Z mgCxAg19+aikwHptz4VUhqyhP2ax/Zd6frTZzeXrYk12TXJhcQHbl4Ysyu6QVgsJixYC 1P2/ylsJUGsSXdLtKJaHM5UCKR9gh+8j1W6GR4QtSV2sZd+lHzOBfL+rzLP6AIEvTLpo 5bUQ== X-Gm-Message-State: APjAAAX0x6Eo+L4TCyDQUroNeIcWRGkY+r4u22tEfR3A9O6efdMNaaJB PFN5P3MHm2Sr2RKOtDjK5DV5KFb0LZQ= X-Google-Smtp-Source: APXvYqwoar8rBWSpiup3MdH7P5BbX7a3Za05ctuYjG7lmMKzNxPXx+gxROipIcVYQPWoBdY6rSms4w== X-Received: by 2002:a62:b60b:: with SMTP id j11mr14757776pff.255.1581609911677; Thu, 13 Feb 2020 08:05:11 -0800 (PST) Received: from ?IPv6:2601:646:c200:1ef2:4e4:2fae:ba85:17b7? ([2601:646:c200:1ef2:4e4:2fae:ba85:17b7]) by smtp.gmail.com with ESMTPSA id 70sm3544667pgd.28.2020.02.13.08.05.10 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 13 Feb 2020 08:05:10 -0800 (PST) Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable From: Andy Lutomirski Mime-Version: 1.0 (1.0) Subject: Re: [RFC PATCH 0/5] New way to track mce notifier chain actions Date: Thu, 13 Feb 2020 08:05:09 -0800 Message-Id: References: <20200213060949.GA31799@zn.tnic> Cc: "Luck, Tony" , X86 ML , LKML In-Reply-To: <20200213060949.GA31799@zn.tnic> To: Borislav Petkov X-Mailer: iPhone Mail (17D50) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > On Feb 12, 2020, at 10:09 PM, Borislav Petkov wrote: >=20 > =EF=BB=BFOn Wed, Feb 12, 2020 at 09:52:39PM -0800, Andy Lutomirski wrote: >> I HATE notifier chains for exceptions, and I REALLY HATE NOTIFY_STOP. >> I don't suppose we could rig something up so that they are simply >> notifiers (for MCE and, eventually, for everything) and just outright >> prevent them from modifying the processing? >=20 > As in: they all get executed unconditionally and there's no NOTIFY_STOP > and if they're not interested in the notification, they simply return > early? >=20 > Hohumm, sounds nicer. >=20 Exactly :) > --=20 > Regards/Gruss, > Boris. >=20 > https://people.kernel.org/tglx/notes-about-netiquette