From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Luck, Tony" Subject: Re: [PATCH v6 1/2] acpi: apei: Rename ghes_severity() to ghes_cper_severity() Date: Tue, 22 May 2018 11:45:33 -0700 Message-ID: <20180522184532.GA4360@agluck-desk> References: <20180521135003.32459-1-mr.nuke.me@gmail.com> <20180521135003.32459-2-mr.nuke.me@gmail.com> <53d0ba88-6929-a7cf-6c3e-4ca389f7249a@gmail.com> <20180522135015.GF5512@pd.tnic> <0b758a1c-90e3-6f76-4f83-1e22c8fc9cd6@gmail.com> <20180522145426.GG5512@pd.tnic> <20180522175742.GA3543@agluck-desk> <5dc58180-d3c0-a9f0-282f-4be433c94052@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <5dc58180-d3c0-a9f0-282f-4be433c94052@gmail.com> Sender: linux-kernel-owner@vger.kernel.org To: "Alex G." Cc: "Rafael J. Wysocki" , Borislav Petkov , alex_gagniuc@dellteam.com, austin_bolen@dell.com, shyam_iyer@dell.com, "Rafael J. Wysocki" , Len Brown , Tyler Baicar , Will Deacon , James Morse , Shiju Jose , "Jonathan (Zhixiong) Zhang" , Dongjiu Geng , ACPI Devel Maling List , Linux Kernel Mailing List List-Id: linux-acpi@vger.kernel.org On Tue, May 22, 2018 at 01:19:34PM -0500, Alex G. wrote: > Firmware started passing "fatal" GHES headers with the explicit intent of > crashing an OS. At the same time, we've learnt how to handle these errors in > a number of cases. With DPC (coming soon to firmware-first) the error is > contained, and a non-issue. Perhaps DPC is the change that you need to emphasize as to why things are different now, so we can change the default Linux behavior. With the h/w guaranteeing that corrupt data is contained, we should be safe to disregard BIOS indications of "fatal" problems that could be anything and might show up in unknown ways some time later if we keep running. -Tony