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mx.microsoft.com 1; spf=pass smtp.mailfrom=suse.com; dmarc=pass action=none header.from=suse.com; dkim=pass header.d=suse.com; arc=none Received: from BY5PR18MB3122.namprd18.prod.outlook.com (10.255.139.11) by BY5PR18MB3092.namprd18.prod.outlook.com (10.255.154.212) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2451.29; Tue, 19 Nov 2019 08:34:12 +0000 Received: from BY5PR18MB3122.namprd18.prod.outlook.com ([fe80::297d:fc41:ae2a:13d9]) by BY5PR18MB3122.namprd18.prod.outlook.com ([fe80::297d:fc41:ae2a:13d9%5]) with mapi id 15.20.2451.031; Tue, 19 Nov 2019 08:34:12 +0000 From: Michael Chang To: Daniel Kiper CC: The development of GNU GRUB , "Vladimir 'phcoder' Serbinenko" , "dave@jikos.cz" , "pmenzel@molgen.mpg.de" , "terrelln@fb.com" Subject: Re: [PATCH] btrfs: disable zstd support for i386-pc Thread-Topic: [PATCH] btrfs: disable zstd support for i386-pc Thread-Index: AQHVk7oyIbCUx3tbMUWvt7qXiTPxAKd+hYgAgAEWtICACV+HAIABf5eAgAGw0QCABhSUAA== Date: Tue, 19 Nov 2019 08:34:12 +0000 Message-ID: <20191119083404.GA7871@mazu> References: <20191105091949.29559-1-mchang@suse.com> <20191107115235.pxkvffcohbsho443@tomti.i.net-space.pl> <20191113110050.omph6xptgsc2ppe2@tomti.i.net-space.pl> <20191114095345.GA3688@mazu> <20191115114252.z5xxticja274cluq@tomti.i.net-space.pl> In-Reply-To: <20191115114252.z5xxticja274cluq@tomti.i.net-space.pl> Accept-Language: zh-TW, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: HK2PR04CA0043.apcprd04.prod.outlook.com (2603:1096:202:14::11) To BY5PR18MB3122.namprd18.prod.outlook.com (2603:10b6:a03:1af::11) authentication-results: spf=none (sender IP is ) smtp.mailfrom=MChang@suse.com; x-ms-exchange-messagesentrepresentingtype: 1 x-originating-ip: [60.251.47.116] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: d9d46729-04f7-45ab-ce9b-08d76ccb4113 x-ms-traffictypediagnostic: BY5PR18MB3092: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:5516; x-forefront-prvs: 022649CC2C x-forefront-antispam-report: SFV:NSPM; SFS:(10019020)(4636009)(7916004)(136003)(366004)(346002)(39860400002)(396003)(376002)(189003)(199004)(52314003)(305945005)(6916009)(6246003)(6486002)(4326008)(8676002)(11346002)(446003)(6436002)(1076003)(8936002)(256004)(478600001)(316002)(229853002)(71190400001)(71200400001)(476003)(81156014)(33716001)(386003)(80792005)(76176011)(55236004)(81166006)(102836004)(54906003)(52116002)(86362001)(66476007)(66556008)(5660300002)(26005)(486006)(66946007)(64756008)(66446008)(6506007)(3846002)(25786009)(6116002)(2906002)(6512007)(9686003)(66066001)(186003)(14454004)(7736002)(33656002)(99286004); DIR:OUT; SFP:1102; SCL:1; SRVR:BY5PR18MB3092; H:BY5PR18MB3122.namprd18.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; MX:1; A:1; received-spf: None (protection.outlook.com: suse.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: Cscm28wp8TI7Kmcb3LxMnisCC+t5p0GhmZsg41VYBjObS/DIk5zKELK9t5eP1EkUyTrG0eK0fWO+XKGfv5Ib4f4codUAi5LIRBf8D3jamyWK9lMuw1ajU5DS7bRXM+WdGVL+K8xG6itl0wk6JKaYPcS968RvxZNeXx2udoSRBujF+uUROvGnghy9mU6OROLZZtqfhKBzRh69/aeI/a5ymvavFHQ1AYfZbedswDWZhL+VdcpO0pRus09cD0WMqaKseE7macWIhLHwZfUWmhn5tkguainwRfNtyYm1cnLJ37t0tXYtuMXolQ9RNBfLfgmQrU/mfUaLPY49gqS2YroBi553sD/4z7w8KiN3yjuJonioEkqJPePLsHGHqZVxSPRNqBHRbDckzxQSSIL719xcmu7ktFzF9QITp+vvY8N/V9Pu7NcoF11OtthVQyUDFPv3 Content-Type: text/plain; charset="us-ascii" Content-ID: <056C939280E5304FB868C4EC73A89F96@namprd18.prod.outlook.com> Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-MS-Exchange-CrossTenant-Network-Message-Id: d9d46729-04f7-45ab-ce9b-08d76ccb4113 X-MS-Exchange-CrossTenant-originalarrivaltime: 19 Nov 2019 08:34:12.4621 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 856b813c-16e5-49a5-85ec-6f081e13b527 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: EwFNT+TFRXH7+VM3TGzGkZ4nC1ao85NDU7gH5egbAwpTECWipTlgsd9xTt+c0UVQ X-MS-Exchange-Transport-CrossTenantHeadersStamped: BY5PR18MB3092 X-OriginatorOrg: suse.com X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 15.124.2.85 X-BeenThere: grub-devel@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: The development of GNU GRUB List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 19 Nov 2019 08:35:48 -0000 On Fri, Nov 15, 2019 at 12:42:52PM +0100, Daniel Kiper wrote: > On Thu, Nov 14, 2019 at 09:53:54AM +0000, Michael Chang wrote: > > On Wed, Nov 13, 2019 at 12:00:50PM +0100, Daniel Kiper wrote: > > > On Thu, Nov 07, 2019 at 12:52:35PM +0100, Daniel Kiper wrote: > > > > On Wed, Nov 06, 2019 at 11:15:04AM -0800, Vladimir 'phcoder' Serbin= enko wrote: > > > > > Please don't do it this way. The right solution is to move it to = separate > > > > > module and include zstd module when needed. Not everybody uses bt= rfs > > > > > embedded area. I recommend not to use it. Using mbr gap or BBP is= the > > > > > recommended way. > > > > > > > > I will put the cat among the pigeons. Maybe we should finally stop > > > > pretending that the GRUB supports small MBR gaps. Otherwise we will > > > > be fighting with such issues endlessly. > > > > > > Bumping the thread... Nobody objects? Hmmm... > > > > I don't think we are able to give up MBR gap support, simply because no > > other way out in creating the area for bootloader embedding. However we >=20 > Nope, I do not propose that... >=20 > > should consider to correct this claim in manual. > > > > "You must ensure that the first partition starts at least 31 KiB (63 > > sectors) from the start of the disk" > > > > to reflect the fact that 31 KiB is no longer applicable and the ideal > > size should be above 1MB (or such). You should go check with your disk > > tools to find the suitable parameter to fulfill the requirement, for eg= , > > the partition alignment would mostly affect this. >=20 > Exactly! However, there are some legacy systems which do not boot if MBR > gap does not end at 63 sectors boundary. Hence, maybe we should suggest > chainloading, using e.g. SYSLINUX, in a such cases. Anyway, may I ask > you to prepare a patch for GRUB manual which describes the problem? Alright, sounds good to me. :)=20 Regards, Michael >=20 > Daniel