Received: by 10.192.165.156 with SMTP id m28csp563154imm; Wed, 11 Apr 2018 03:53:02 -0700 (PDT) X-Google-Smtp-Source: AIpwx4+T5glsLh0boYSEPjqQaATr3SzUgrJi4wbJKxh3U45TdEf7RDCbBkINZs2Et/fn8R0xdHnW X-Received: by 10.167.129.136 with SMTP id g8mr3597115pfi.19.1523443982034; Wed, 11 Apr 2018 03:53:02 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1523443981; cv=none; d=google.com; s=arc-20160816; b=R243QLHFeJiWU/U/1kn1X7YLfDnbieMVSUv9KG4CU8DBA6wVAkaNKeAzZ1nHcfYsnM YQL33UdImqE0IszC8OOhAN4sgeinR8UO7IxiIk62paUlPJm+oJyw4rFaEzbg5EIh9SbR Xt6VXBbexgw4frWL/S5QU3atDzC9XHyG3WF8bYj+vBnK7ufA2gMnUNgnGHs8VD/iDcym H1WBuYsTJkE3js/H6nf5jE3kvGcAjccpP2LOCcd45BfPzgS7xmNbuWCaDrqCIwVGJo/f kclYMdkVqq25Tzu3SfjQk/J/RcMdL62HHFPd2kh1I2uR4krb2FhJj4Kz1Y5BDP28S2+B P+jw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:content-disposition :mime-version:message-id:subject:cc:to:from:date :arc-authentication-results; bh=x9k+zl4gI9x+tm+va4m8CS8/m28xlJ2y4WWeDx+yS6Q=; b=RB0+GbN8HktWTWi/mAdW07IypvbSCRvQ9IfwG9pYmSziRQNKb8+3BAelhxRs1RHFHR NZTwm3+ETtiPgwO0x9gaWpY0ZH330nLa13Cq+obGlb5ObW2/8SvHUZGyFF31CkSgw0ae fyb3DuIaMPChPKD/XrNh5AHZpw4YND0CK8pUxJCFKlghyIEpzQixwz3HLSnMM45Atv04 amcy7C4E7HU/BQpVgXKizzGa01hcJLJletdtMRTyLhqFGhRVv0f9JwyncJgPb/sF20bp VaUzP8J8Xr0ZdJTah8HFoqANfM18+6NrpYIjZBxj0DZtzFjS1OEnFBvYin88SHwbv8KB Zafg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id x74si675503pfi.371.2018.04.11.03.52.25; Wed, 11 Apr 2018 03:53:01 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752923AbeDKKsi (ORCPT + 99 others); Wed, 11 Apr 2018 06:48:38 -0400 Received: from mx2.suse.de ([195.135.220.15]:39602 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752896AbeDKKse (ORCPT ); Wed, 11 Apr 2018 06:48:34 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay1.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 95849AE95; Wed, 11 Apr 2018 10:48:32 +0000 (UTC) Date: Wed, 11 Apr 2018 12:48:32 +0200 From: Michal Hocko To: Ganapatrao Kulkarni Cc: Tony Luck , "Rafael J. Wysocki" , tiantao6@huawei.com, LKML , linux-acpi@vger.kernel.org Subject: fd3e45436660 ("ACPI / NUMA: ia64: Parse all entries of SRAT memory affinity table") Message-ID: <20180411104832.GF23400@dhcp22.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, my attention was brought to the %subj commit and either I am missing something or the patch is quite dubious. What is it actually trying to fix? If a BIOS/FW provides more memblocks than the limit then we would get misleading numa topology (numactl -H output) but is the situation much better with it applied? Numa init code will refuse to init more memblocks than the limit and falls back to dummy_numa_init (AFAICS) which will break the topology again and numactl -H will have a misleading output anyway. So why is the patch an improvement at all? -- Michal Hocko SUSE Labs