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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B104DC77B7A for ; Tue, 23 May 2023 14:15:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237181AbjEWOPv (ORCPT ); Tue, 23 May 2023 10:15:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53650 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237052AbjEWOPp (ORCPT ); Tue, 23 May 2023 10:15:45 -0400 Received: from lobo.ruivo.org (lobo.ruivo.org [173.14.175.98]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0D9C2E9 for ; Tue, 23 May 2023 07:15:42 -0700 (PDT) Received: by lobo.ruivo.org (Postfix, from userid 1011) id 7248252DCF; Tue, 23 May 2023 10:15:40 -0400 (EDT) Received: from jake.ruivo.org (bob.qemu.ruivo [192.168.72.19]) by lobo.ruivo.org (Postfix) with ESMTPA id 75B99527BB; Tue, 23 May 2023 10:15:23 -0400 (EDT) Received: by jake.ruivo.org (Postfix, from userid 1000) id 641BE220035; Tue, 23 May 2023 10:15:23 -0400 (EDT) Date: Tue, 23 May 2023 10:15:23 -0400 From: Aristeu Rozanski To: "Luck, Tony" Cc: Borislav Petkov , "linux-edac@vger.kernel.org" , Aristeu Rozanski Subject: Re: [PATCH] mce: prevent concurrent polling of MCE events Message-ID: <20230523141523.GL4090740@cathedrallabs.org> References: <20230515143225.GC4090740@cathedrallabs.org> <20230515145227.GGZGJHKyH9sAfToD03@fat_crate.local> <20230515183050.GJZGJ6Wsmr4Yf/H5Ps@fat_crate.local> <20230515194423.GKZGKLl+8mJiLoJAp1@fat_crate.local> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/2.2.9 (2022-11-12) Precedence: bulk List-ID: X-Mailing-List: linux-edac@vger.kernel.org On Mon, May 15, 2023 at 08:07:10PM +0000, Luck, Tony wrote: > I disabled CMCI for debugging reasons. Aristeu needs to comment on > his use case. Got an answer from them. They disable it in two lines of products (one uses IceLake, the other uses Sapphire Rapids) and in these lines they can use thresholding to signal UCNA without signaling any corrected events and it won't work with CMCI enabled. They did make Intel aware of it (maybe you heard details about it? If not I can get them in contact with you) but it's not certain if this can be fixed or not. -- Aristeu