Received: by 2002:a05:6a10:2785:0:0:0:0 with SMTP id ia5csp228633pxb; Wed, 13 Jan 2021 02:02:34 -0800 (PST) X-Google-Smtp-Source: ABdhPJxZfFS5j3G0BqekbbX3X1nMNYpc2uuF7LTUVTVL5hJbijdEApVTI0xnDabBJu+LoNHtIpoJ X-Received: by 2002:a05:6402:41:: with SMTP id f1mr1117540edu.286.1610532154027; Wed, 13 Jan 2021 02:02:34 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1610532154; cv=none; d=google.com; s=arc-20160816; b=qXCwylbfx46CLIDDiqDE4OUZSw6KgUHqJ42eelpsmafji2Mh/cJXjWpAduwxYkgwxa e1ye5tf2gt9kPqyGnc10tdF/1pHJuoaxeUbeykxQEc50YMqYQ8xwdMoRvyL/5Otmfgwb DaHOtjCxIqVbsM6wMwvNl2zzldFREPIHaM6mcQcUoNOL+JRv8tl1DVrIZfEen4E7MT+R klcazloxr0rVTjZ3cxVuEOXNUTFaBRPNU0zMprN1LWWGRDuaquzF1uLXCAykeRANBDoO xGKrfNx0KFfzu8Gfayu+sr3AwVg98S9k+XmAeOzPQ5fKujnKNvT4A94+VVDLHrAi9uBS GzyQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-transfer-encoding :content-disposition:mime-version:references:message-id:subject:cc :to:from:date:dkim-signature; bh=bwXUgqm+T5Hm2apmjjzcl3Q/EJPSeMebtTylU7D0IPM=; b=L0SrMFS5WQ3u069dM6w37LXV9ZXJee0bdlrenIol7ujw3xN7rmo/m7adjVJl8up+E5 bySq3yt/YkD1Mgy/VjmwwhcfNG2X6QduNOI3Orni0iwdwRJxmuxneKNGCeHAR1HhZ8tk G/EbiOAGIR635hKXeUqEINyQOAdZ4bZhovZixFi5KJM+K9P2XHoKdvwMaLO/zQfZVJ/E bYG9qOrDJ1aiDV1I+ekR7d3q/KjhZJy75l2uckX4IX8tc6fH4QfvruaqpiTbhNs2SC4V cpSf7bNy6uWk69lsBJWhxiZiImqo1eSHyQb/EpyzBbuRAORUi1eWQtOvj+2a3d2/nyK9 PI2A== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@alien8.de header.s=dkim header.b="S/AxnRkx"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=alien8.de Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id i1si706249eds.174.2021.01.13.02.02.10; Wed, 13 Jan 2021 02:02:34 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@alien8.de header.s=dkim header.b="S/AxnRkx"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=alien8.de Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726899AbhAMKA7 (ORCPT + 99 others); Wed, 13 Jan 2021 05:00:59 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35690 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726381AbhAMKA7 (ORCPT ); Wed, 13 Jan 2021 05:00:59 -0500 Received: from mail.skyhub.de (mail.skyhub.de [IPv6:2a01:4f8:190:11c2::b:1457]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F00B7C061575; Wed, 13 Jan 2021 02:00:18 -0800 (PST) Received: from zn.tnic (p200300ec2f0b5c00b2d62b1c55c494d5.dip0.t-ipconnect.de [IPv6:2003:ec:2f0b:5c00:b2d6:2b1c:55c4:94d5]) (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 5EB081EC0373; Wed, 13 Jan 2021 11:00:16 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1610532016; 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:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=bwXUgqm+T5Hm2apmjjzcl3Q/EJPSeMebtTylU7D0IPM=; b=S/AxnRkx4uD8Hpul/XNm2pKELEPL/XjKvGveGL9E3vtrrLbdwA5CT039hEQIp3oA1ZRC3k fBvXcAixZ7vIqoYufjd7oTdYPH0ZSiM8fDN4pouBzhxgkXfqR8K/yJ3MtGq1OlyCov7Mjh 0aR8aCpYVr9aw9K23eq0XvSkA4Yxgj4= Date: Wed, 13 Jan 2021 11:00:09 +0100 From: Borislav Petkov To: Andy Lutomirski Cc: "Luck, Tony" , Andy Lutomirski , X86 ML , Andrew Morton , Peter Zijlstra , Darren Hart , LKML , linux-edac , Linux-MM Subject: Re: [PATCH v2 1/3] x86/mce: Avoid infinite loop for copy from user recovery Message-ID: <20210113100009.GA16960@zn.tnic> References: <20210113015053.GA21587@agluck-desk2.amr.corp.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jan 12, 2021 at 08:15:46PM -0800, Andy Lutomirski wrote: > So I’m sort of at a loss as to what we can do. I think you guys have veered off into the weeds with this. The current solution - modulo error messages not destined for humans :) - is not soo bad, considering the whole MCA trainwreck. Or am I missing something completely unacceptable? -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette