Received: by 2002:a05:6a10:8c0a:0:0:0:0 with SMTP id go10csp1429924pxb; Mon, 22 Feb 2021 01:26:41 -0800 (PST) X-Google-Smtp-Source: ABdhPJzQKhKwWBCXd4KYfY0hLLLaaGivfp5QbBo3r/CsHjirlFbCiIovInb7JmD+dEJLs8xJbabW X-Received: by 2002:a05:6402:1d9b:: with SMTP id dk27mr6346158edb.209.1613986001650; Mon, 22 Feb 2021 01:26:41 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1613986001; cv=none; d=google.com; s=arc-20160816; b=BiMivEdbc8/wop/1c9QJPO4Gl9Sq7kr7RrVcZrVRlRkJ+6aqW9GdET2ZiQOrIrzNKM rqup9mHYqDb1TrkgUXpEfnFZ3g307OT07V3Xi3TRPVYm5ZQ14lBt8YUhxgEw0fYJp2Pc qAwVLDZuGi1wKBJwPWMHvJmMcEC6b/pE698FoA8dZUW5HDoD5STL19FEk1qeDAdyqHHX lVWaRwb8Op3/2wnrH3cWmvw7ovGDv2f8yyN9AhP6ceo8jOFzezRkVmZUjwUBuU5QFWBk iBevCIjZxf4qxygyEIZW8XHyXMTobP+miUsXnElSLCWUUID7AUnTXkTtKxPPb0c+agWf 4AsQ== 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-disposition:mime-version :references:message-id:subject:cc:to:from:date:dkim-signature; bh=kPzv+4BLBRuKuhBJEdIH/HePcme0g8FNkpnOb1T+LNM=; b=WVJBBKbLlE4onO6KPj+IhwHau+Al6M6uFUVXhQO819WNM+9efv137dXgrwQ4EPt+/i vDqEP4SZgww8I0oyPvfcZ6fenWE6lF0AmJwAFeUz8KYhm1LeE2VHUwi8bnukHSQA+UEw 7U0SxhUt9hvXcxiRIwxiN2WEGXpvos9tDbXVQLVxWn7Dvl7nOJGrz4uKKYzq+lN98L3+ 1KLfkEAmXa3MBQB/UC71EM2eIGexFVEtdboGOJh3ow8JtVRUz5WMUaiTbSxD+a61OIEz FRj7prtzWqY3j0plypA7q86Qt2k2gfWEZEIBNxuL3EWuHZYgj7SnO8GAYJTE969AJ6wH M2sw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@alien8.de header.s=dkim header.b=JcRAIR15; 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 i13si12189825ejo.460.2021.02.22.01.26.19; Mon, 22 Feb 2021 01:26:41 -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=JcRAIR15; 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 S230164AbhBVJYs (ORCPT + 99 others); Mon, 22 Feb 2021 04:24:48 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49958 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229915AbhBVJYr (ORCPT ); Mon, 22 Feb 2021 04:24:47 -0500 Received: from mail.skyhub.de (mail.skyhub.de [IPv6:2a01:4f8:190:11c2::b:1457]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9FE5EC061574; Mon, 22 Feb 2021 01:24:06 -0800 (PST) Received: from zn.tnic (p200300ec2f040200a034b7f44a0c99a8.dip0.t-ipconnect.de [IPv6:2003:ec:2f04:200:a034:b7f4:4a0c:99a8]) (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 6D11F1EC025A; Mon, 22 Feb 2021 10:24:04 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1613985844; 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=kPzv+4BLBRuKuhBJEdIH/HePcme0g8FNkpnOb1T+LNM=; b=JcRAIR15gSS+1EnjWjbeyu1yGqwQoXfao3U6a/CCrHoH5237m89Js63VHINWkgWvMhkdIP bzhOKsBXdl7lgU1xiQA6IcC9+A1RcZmkPTtuB3Q8OT+5Z9dtXMReidUXFvmiUaQrSJd8cu jlEPuKV9xi9nJB4bSAECvJtNEGpysOg= Date: Mon, 22 Feb 2021 10:24:03 +0100 From: Borislav Petkov To: Aili Yao Cc: tony.luck@intel.com, mingo@redhat.com, tglx@linutronix.de, hpa@zytor.com, x86@kernel.org, linux-edac@vger.kernel.org, linux-kernel@vger.kernel.org, yangfeng1@kingsoft.com Subject: Re: [PATCH v2] x86/mce: fix wrong no-return-ip logic in do_machine_check() Message-ID: <20210222092403.GA29063@zn.tnic> References: <20210222113124.35f2d552@alex-virtual-machine> <20210222115007.75b7de9b@alex-virtual-machine> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20210222115007.75b7de9b@alex-virtual-machine> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Feb 22, 2021 at 11:50:07AM +0800, Aili Yao wrote: > From commit b2f9d678e28c ("x86/mce: Check for faults tagged in > EXTABLE_CLASS_FAULT exception table entries"), When there is a > memory MCE_AR_SEVERITY error with no return ip, What is a "no return ip" - MCG_STATUS_RIPV? How do you trigger this error? -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette