From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from resqmta-ch2-08v.sys.comcast.net ([69.252.207.40]:55159 "EHLO resqmta-ch2-08v.sys.comcast.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750978AbaJUPEZ (ORCPT ); Tue, 21 Oct 2014 11:04:25 -0400 Message-ID: <544675F7.3010808@pobox.com> Date: Tue, 21 Oct 2014 08:04:23 -0700 From: Robert White MIME-Version: 1.0 To: Cristian Falcas , linux-btrfs Subject: Re: downgrade from kernel 3.17 to 3.10 References: In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Sender: linux-btrfs-owner@vger.kernel.org List-ID: On 10/21/2014 01:13 AM, Cristian Falcas wrote: > Can I downgrade the kernel from 3.17.1 to latest 3.10 if I have a > btrfs partition formatted and used on 3.17.1? I went back from 3.17.0 to 3.16.3 when 3.17 acted flaky, and since then gone up to 3.16.5 with nice results. 3.17.2 is, I think, expected to contain the actual fixes Did you upgrade straight from 3.10 to 3.17? Going all the way back to 3.10 is probably a bad thing. There's been a lot of work since then. I'd build a new 3.16.5 and switch to that. DONT go back further, and DONT run btrfsck until the mainline and tools that fix the "read-only snapshot bug" are in your system. I think that's going to be 3.17.2 and the 3.17 btrfs tools. If you use older tools you may end up having to recreate the partition completely.