From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from plane.gmane.org ([80.91.229.3]:38876 "EHLO plane.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754724AbbBOVBX (ORCPT ); Sun, 15 Feb 2015 16:01:23 -0500 Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1YN6Jd-0001KD-Ln for linux-btrfs@vger.kernel.org; Sun, 15 Feb 2015 22:01:21 +0100 Received: from p4ff58ced.dip0.t-ipconnect.de ([79.245.140.237]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sun, 15 Feb 2015 22:01:21 +0100 Received: from holger.hoffstaette by p4ff58ced.dip0.t-ipconnect.de with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sun, 15 Feb 2015 22:01:21 +0100 To: linux-btrfs@vger.kernel.org From: Holger =?iso-8859-1?q?Hoffst=E4tte?= Subject: Suddenly cannot change metadata profile any longer Date: Sun, 15 Feb 2015 21:01:07 +0000 (UTC) Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-btrfs-owner@vger.kernel.org List-ID: Here's a new one (with kernel 3.18.7++): $btrfs --version Btrfs v3.18.2 (also tried 3.19-rc2) $mount /dev/sdf1 /mnt/usb $btrfs filesystem df /mnt/usb Data, single: total=8.00MiB, used=256.00KiB System, single: total=32.00MiB, used=16.00KiB Metadata, single: total=1.00GiB, used=112.00KiB GlobalReserve, single: total=16.00MiB, used=0.00B Note: metadata=single - done right after mkfs for the initial balance. $btrfs balance start -mconvert=dup /mnt/usb Done, had to relocate 2 out of 3 chunks root>btrfs filesystem df /mnt/usb Data, single: total=8.00MiB, used=512.00KiB System, single: total=32.00MiB, used=16.00KiB Metadata, single: total=1.00GiB, used=192.00KiB GlobalReserve, single: total=16.00MiB, used=0.00B Wait, what? Still single? This used to work, but somehow no longer does (verified on another filesystem). If it's dup, it stays dup; if it's single, it stays single. What works is the very first balance after the mkfs - it successfully changes from the initial default dup to single, but subsequent balances don't work. They also don't really fail. Any ideas what might have caused this? Must have been a recent patch. Holger