From patchwork Fri Nov 22 10:28:03 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 11257857 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D8C43109A for ; Fri, 22 Nov 2019 11:26:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B8E8C2071C for ; Fri, 22 Nov 2019 11:26:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1574421968; bh=youHC11LHjAs4CWKcmpmT/pWr3+p84Nsi0dY0gcXfR8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=wqUvrDR0I0qQPeM/5E2aX/5mHJv+i2fLLrY1aix8qvgzvR2uG58sZpKfVXQfxh7BL Q7PG/i7WiaYSpIURqaRR+vW3hVm1RFnQwQjtlpyBI6GHQj2r2KcFnSvcY5HBl1ZocS 3KT+b6J++sYQY/6FMIiXGKq9VYRW6XPZiHgogprY= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727574AbfKVKfF (ORCPT ); Fri, 22 Nov 2019 05:35:05 -0500 Received: from mail.kernel.org ([198.145.29.99]:60748 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727561AbfKVKfD (ORCPT ); Fri, 22 Nov 2019 05:35:03 -0500 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 739E920656; Fri, 22 Nov 2019 10:35:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1574418903; bh=youHC11LHjAs4CWKcmpmT/pWr3+p84Nsi0dY0gcXfR8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=hoU7WGjH17D45ooH8DLm04fTYQHUfddQ86bi7+wOFZNiyk7Jdaf0AQs/ZALwI3iqe JmbjtKXFx5+cJAgxmzDkZyxp3D2ziUn+ElTQ6FZZAXu1ZFqvmI54FnOuGC94kdIBhM G4k8zNQkpoM05vEZkhEUFVgdEDdTdqVxi9mv7SGg= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Justin Ernst , Borislav Petkov , Russ Anderson , Mauro Carvalho Chehab , linux-edac@vger.kernel.org, Sasha Levin Subject: [PATCH 4.4 092/159] EDAC: Raise the maximum number of memory controllers Date: Fri, 22 Nov 2019 11:28:03 +0100 Message-Id: <20191122100813.313867059@linuxfoundation.org> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20191122100704.194776704@linuxfoundation.org> References: <20191122100704.194776704@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: linux-edac-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-edac@vger.kernel.org From: Justin Ernst [ Upstream commit 6b58859419554fb824e09cfdd73151a195473cbc ] We observe an oops in the skx_edac module during boot: EDAC MC0: Giving out device to module skx_edac controller Skylake Socket#0 IMC#0 EDAC MC1: Giving out device to module skx_edac controller Skylake Socket#0 IMC#1 EDAC MC2: Giving out device to module skx_edac controller Skylake Socket#1 IMC#0 ... EDAC MC13: Giving out device to module skx_edac controller Skylake Socket#0 IMC#1 EDAC MC14: Giving out device to module skx_edac controller Skylake Socket#1 IMC#0 EDAC MC15: Giving out device to module skx_edac controller Skylake Socket#1 IMC#1 Too many memory controllers: 16 EDAC MC: Removed device 0 for skx_edac Skylake Socket#0 IMC#0 We observe there are two memory controllers per socket, with a limit of 16. Raise the maximum number of memory controllers from 16 to 2 * MAX_NUMNODES (1024). [ bp: This is just a band-aid fix until we've sorted out the whole issue with the bus_type association and handling in EDAC and can get rid of this arbitrary limit. ] Signed-off-by: Justin Ernst Signed-off-by: Borislav Petkov Acked-by: Russ Anderson Cc: Mauro Carvalho Chehab Cc: linux-edac@vger.kernel.org Link: https://lkml.kernel.org/r/20180925143449.284634-1-justin.ernst@hpe.com Signed-off-by: Sasha Levin --- include/linux/edac.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/include/linux/edac.h b/include/linux/edac.h index 4fe67b853de04..9bb4f3311e137 100644 --- a/include/linux/edac.h +++ b/include/linux/edac.h @@ -17,6 +17,7 @@ #include #include #include +#include struct device; @@ -778,6 +779,6 @@ struct mem_ctl_info { /* * Maximum number of memory controllers in the coherent fabric. */ -#define EDAC_MAX_MCS 16 +#define EDAC_MAX_MCS 2 * MAX_NUMNODES #endif