From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp2 ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms11 with LMTPS id fcz9LfA8YV/HaAAA0tVLHw (envelope-from ) for ; Tue, 15 Sep 2020 22:15:12 +0000 Received: from aspmx1.migadu.com ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp2 with LMTPS id oCrHJ/A8YV86VQAAB5/wlQ (envelope-from ) for ; Tue, 15 Sep 2020 22:15:12 +0000 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by aspmx1.migadu.com (Postfix) with ESMTPS id 14D3D94060F for ; Tue, 15 Sep 2020 22:15:12 +0000 (UTC) Received: from localhost ([::1]:40546 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kIJED-0001cB-Kc for larch@yhetil.org; Tue, 15 Sep 2020 18:15:09 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:54378) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kIJE6-0001c3-K4 for bug-guix@gnu.org; Tue, 15 Sep 2020 18:15:02 -0400 Received: from debbugs.gnu.org ([209.51.188.43]:49213) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kIJE6-0007p8-AA for bug-guix@gnu.org; Tue, 15 Sep 2020 18:15:02 -0400 Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1kIJE6-00053L-5i for bug-guix@gnu.org; Tue, 15 Sep 2020 18:15:02 -0400 X-Loop: help-debbugs@gnu.org Subject: bug#43132: [GUIX SYSTEM]: Malfunction Resent-From: Mark H Weaver Original-Sender: "Debbugs-submit" Resent-CC: bug-guix@gnu.org Resent-Date: Tue, 15 Sep 2020 22:15:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 43132 X-GNU-PR-Package: guix X-GNU-PR-Keywords: To: Maxim Cournoyer , Raghav Gururajan Received: via spool by 43132-done@debbugs.gnu.org id=D43132.160020807619379 (code D ref 43132); Tue, 15 Sep 2020 22:15:02 +0000 Received: (at 43132-done) by debbugs.gnu.org; 15 Sep 2020 22:14:36 +0000 Received: from localhost ([127.0.0.1]:60759 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kIJDf-00052V-T3 for submit@debbugs.gnu.org; Tue, 15 Sep 2020 18:14:36 -0400 Received: from world.peace.net ([64.112.178.59]:42368) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kIJDc-00052F-Rb for 43132-done@debbugs.gnu.org; Tue, 15 Sep 2020 18:14:34 -0400 Received: from mhw by world.peace.net with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1kIJDU-0001F5-Dg; Tue, 15 Sep 2020 18:14:24 -0400 From: Mark H Weaver In-Reply-To: <87tuvzp3nc.fsf@gmail.com> References: <8d2d6787-6649-2089-8d5e-a43fba6041e7@disroot.org> <20200831231730.021e45f4@scratchpost.org> <87h7s6jc98.fsf@gnu.org> <87363k5r1n.fsf@gmail.com> <878sdcb1ac.fsf@gnu.org> <95c4430f-1a98-50ad-cb6a-0adb1ec6039a@disroot.org> <87tuvzp3nc.fsf@gmail.com> Date: Tue, 15 Sep 2020 18:13:07 -0400 Message-ID: <871rj2bsdt.fsf@netris.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Spam-Score: 0.0 (/) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-Spam-Score: -1.0 (-) X-BeenThere: bug-guix@gnu.org List-Id: Bug reports for GNU Guix List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: 43132-done@debbugs.gnu.org Errors-To: bug-guix-bounces+larch=yhetil.org@gnu.org Sender: "bug-Guix" X-Scanner: scn0 Authentication-Results: aspmx1.migadu.com; dkim=none; dmarc=none; spf=pass (aspmx1.migadu.com: domain of bug-guix-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=bug-guix-bounces@gnu.org X-Spam-Score: -1.01 X-TUID: I3T5oFUYLFmM Maxim Cournoyer writes: > Raghav Gururajan writes: > >>> Maxim Cournoyer skribis: >>>=20 >>>> I took Raghav to #btrfs last week, where with the help of gentle folks= a >>>> failing drive was established as the most likely culprit. >>>> >>>> In other words, Btrfs checksuming capabilities helped quickly >>>> discovering a hardware problem which might otherwise have silently >>>> caused non-recoverable damage to Raghav's data. >>>=20 >>> Good, thanks for following up! >>>=20 >>> Ludo=E2=80=99. >> >> Thank you! >> >> Yeah, seems like my disk is shot, but I am not sure. I have reinstalled >> guix with ext4, instead of btrfs, as these issues started to arise after >> migration to btrfs from ext4. So far, my system is doing well. Lets see >> how it goes. :-) > > Sounds like playing with fire to me :-). > > Ext4 won't detect bitrot (silent corruption of your drive's data). > You'll probably wake one day with a fsck that won't be able to recover > some files, or worst, a completely dead drive. > > Your backups would also contain corrupted data (garbage in, garbage > out!). For what it's worth, I wholeheartedly agree with Maxim. Btrfs did you a great service by calling attention to this problem with your drive, and it would be a shame to ignore it and switch back to ext4 where your data may instead be silently corrupted. I've been using btrfs for several years now on my x86_64 Guix system, and it has served me well. Previously, I used ext4, which would silently leave some of my files empty after crashes. I've never seen that happen with btrfs. Mark