From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from magic.merlins.org ([209.81.13.136]:54739 "EHLO mail1.merlins.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751767AbdFUDoN (ORCPT ); Tue, 20 Jun 2017 23:44:13 -0400 Date: Tue, 20 Jun 2017 20:43:52 -0700 From: Marc MERLIN To: Chris Murphy Cc: Hugo Mills , Btrfs BTRFS Subject: Re: 4.11.3: BTRFS critical (device dm-1): unable to add free space :-17 => btrfs check --repair runs clean Message-ID: <20170621034352.GE5303@merlins.org> References: <20170620143916.GA22987@merlins.org> <20170620152354.GD7140@carfax.org.uk> <20170620152648.GB22987@merlins.org> <20170620153601.GE7140@carfax.org.uk> <20170620154429.GC22987@merlins.org> <20170620231202.GB5303@merlins.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: Sender: linux-btrfs-owner@vger.kernel.org List-ID: On Tue, Jun 20, 2017 at 09:31:42PM -0600, Chris Murphy wrote: > On Tue, Jun 20, 2017 at 5:12 PM, Marc MERLIN wrote: > > > I'm now going to remount this with nospace_cache to see if your guess about > > space_cache was correct. > > Other suggestions also welcome :) > > What results do you get with lowmem mode? It won't repair without > additional patches, but might give a dev a clue what's going on. I > regularly see normal mode check finds no problems, and lowmem mode > finds problems. Lowmem mode is a total rewrite so it's a different > implementation and can find things normal mode won't. Oh, I kind of forgot that lowmem mode looked for more things than regular mode. I will run this tonight and see what it says. Marc -- "A mouse is a device used to point at the xterm you want to type in" - A.S.R. Microsoft is to operating systems .... .... what McDonalds is to gourmet cooking Home page: http://marc.merlins.org/