From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753407Ab3LCDVN (ORCPT ); Mon, 2 Dec 2013 22:21:13 -0500 Received: from fgwmail6.fujitsu.co.jp ([192.51.44.36]:38201 "EHLO fgwmail6.fujitsu.co.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751739Ab3LCDVJ (ORCPT ); Mon, 2 Dec 2013 22:21:09 -0500 X-SecurityPolicyCheck: OK by SHieldMailChecker v2.0.1 X-SHieldMailCheckerPolicyVersion: FJ-ISEC-20120718-3 Message-ID: <529D4DF5.80502@jp.fujitsu.com> Date: Tue, 3 Dec 2013 12:20:21 +0900 From: Yasuaki Ishimatsu User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:17.0) Gecko/20130801 Thunderbird/17.0.8 MIME-Version: 1.0 To: Matthew Garrett CC: "linux-efi@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "matt.fleming@intel.com" , "jlee@suse.com" , "matt@console-pimps.org" , "richard@nod.at" , "cxie@redhat.com" Subject: Re: [PATCH] x86, efi: add efi_whitelist_table to use all efi variable storage References: <528C740A.6010407@jp.fujitsu.com> <1384963376.20536.3.camel@x230> <528DD3E0.3050606@jp.fujitsu.com> <1385064722.12107.1.camel@x230> <528E9EB2.3060808@jp.fujitsu.com> <1385078632.12107.3.camel@x230> <528EF87D.4050300@jp.fujitsu.com> <528EF9CE.2070305@jp.fujitsu.com> <1385142450.2884.1.camel@x230> In-Reply-To: <1385142450.2884.1.camel@x230> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-SecurityPolicyCheck-GC: OK by FENCE-Mail Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org (2013/11/23 2:47), Matthew Garrett wrote: > On Fri, 2013-11-22 at 15:29 +0900, Yasuaki Ishimatsu wrote: > >> + DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"), >> + DMI_MATCH(DMI_PRODUCT_NAME, "PRIMEQUEST"), > > Can we guarantee that no Primequests have this issue? Can we guarantee > that that no prior firmware versions have this issue? Can we guarantee > that no future firmware versions will have this issue? > Sorry for the late reply. I contacted our firmware team to confirm them. They said that current implementation, thereshold is 5KB, is strange. Currently many EFI firmwares are based on EFI Development Kit (EDK). Accoding to EDK source, gc on boot time runs when free space of nvram is less than MaximumVariableSize of QueryVariableInfo(). In my system MaximumVariableSize is 1KB. So when free space reaches less than 5KB and I reboot the system, gc does not run on boot time in my system. Threshold of gc depends on a system. So at least, 5KB threshold must be changed on each system. Thanks, Yasuaki Ishimatsu