From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with archive (Exim 4.43) id 1O5lj6-0001q0-Kb for mharc-grub-devel@gnu.org; Sat, 24 Apr 2010 16:13:20 -0400 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1O5lj5-0001pu-FR for grub-devel@gnu.org; Sat, 24 Apr 2010 16:13:19 -0400 Received: from [140.186.70.92] (port=60347 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1O5lj4-0001pm-7C for grub-devel@gnu.org; Sat, 24 Apr 2010 16:13:19 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1O5liy-0001gQ-Pi for grub-devel@gnu.org; Sat, 24 Apr 2010 16:13:17 -0400 Received: from mail-bw0-f223.google.com ([209.85.218.223]:59135) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1O5liy-0001g3-FQ for grub-devel@gnu.org; Sat, 24 Apr 2010 16:13:12 -0400 Received: by bwz23 with SMTP id 23so10927961bwz.26 for ; Sat, 24 Apr 2010 13:13:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from :user-agent:mime-version:to:subject:references:in-reply-to :x-enigmail-version:content-type; bh=TeWZebtLZA+rH94KeWPJVU5b+3sU1/Cv79QHGnVMFhc=; b=sTK7NC2E/6+tcHpgCeU1mo1zroVxOPG3t9sA45ufngQz5XW5I8madoxbPFFjXacx/6 baCr5LJEfz/Ul0eWSBM8W6y77bG33L1lMd40oHsl3fiRZ+XwEznyYlyzBgx/F5mqi/ry +m426j9XS+TKJTvd9r9p/BC+uzWijV6fEXsZE= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:subject:references :in-reply-to:x-enigmail-version:content-type; b=rHTJis12i0AF1Rsf9fTfQyrOMXP+oTWq5pnQ+59CVpIW+VDEfpw/quXwiGX/AqupHl Zf3kmHMBejFYqdNgKCd3I22B/iCbhQ9wEnswvX+eb8nnMga1xxw/bzWNCHT50UGQm189 diSdPhC/H9Bx6IOtf0O/FaMCA3lAIKHFGuR3s= Received: by 10.204.131.198 with SMTP id y6mr1172006bks.4.1272139991317; Sat, 24 Apr 2010 13:13:11 -0700 (PDT) Received: from debian.bg45.phnet (39-210.2-85.cust.bluewin.ch [85.2.210.39]) by mx.google.com with ESMTPS id 14sm936018bwz.14.2010.04.24.13.13.08 (version=TLSv1/SSLv3 cipher=RC4-MD5); Sat, 24 Apr 2010 13:13:09 -0700 (PDT) Message-ID: <4BD350C4.60501@gmail.com> Date: Sat, 24 Apr 2010 22:12:52 +0200 From: =?UTF-8?B?VmxhZGltaXIgJ8+GLWNvZGVyL3BoY29kZXInIFNlcmJpbmVua28=?= User-Agent: Mozilla-Thunderbird 2.0.0.22 (X11/20091109) MIME-Version: 1.0 To: The development of GNU GRUB References: <87iq7wk74w.wl%jir@sekiba.com> <4BC73D44.6020307@gmail.com> <87ochh83jw.wl%jir@sekiba.com> In-Reply-To: <87ochh83jw.wl%jir@sekiba.com> X-Enigmail-Version: 0.95.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="------------enig8726D717673DBAFA0EB57F7B" X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 2) Subject: Re: [PATCHv3] a new filesystem module for nilfs2 X-BeenThere: grub-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: The development of GNU GRUB List-Id: The development of GNU GRUB List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 24 Apr 2010 20:13:19 -0000 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig8726D717673DBAFA0EB57F7B Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Committed. One question: + .reserved_first_sector =3D 1, This line claims that overwriting first sector of nilfs won't destroy any= data or metadata. Is it so? Jiro SEKIBA wrote: > Hi, > > Thank you very much for the comments! > I revised the patch to reflect the comments. > > =20 >> + { >> + grub_error(GRUB_ERR_BAD_FS,"btree corruption\n"); >> + return -1; >> + } >> What do you think about possible fallback to iterate over all nodes in= case of fs corruption? >> =20 > > The case that btree is corrupted, it's very hard to take any action to = recover > because it is not possible to distinguish which block has meta data > or which block has data without btree information. > > nilfs2 has ability to mount old checkpoint by specifying checkpoint num= ber. > So using old checkpoint is one of the possible fallback if all the bloc= ks > belonging to the old checkpoint is healthy. But it requires some more w= ork. > > thanks, > > regards > =20 > -----------------------------------------------------------------------= - > > > -----------------------------------------------------------------------= - > > _______________________________________________ > Grub-devel mailing list > Grub-devel@gnu.org > http://lists.gnu.org/mailman/listinfo/grub-devel --=20 Regards Vladimir '=CF=86-coder/phcoder' Serbinenko --------------enig8726D717673DBAFA0EB57F7B Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iF4EAREKAAYFAkvTUM4ACgkQNak7dOguQgmemwD/T6gS8Km0uYBLqEN4QOiwsKSP o3M6pfmPPUdl05Da21oA/1WSfbwZHU4Bx7R5jO+H1TI4XRjezceb3YYARxo0qkEJ =jZko -----END PGP SIGNATURE----- --------------enig8726D717673DBAFA0EB57F7B--