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[141.255.38.110]) by smtp.gmail.com with ESMTPSA id r2sm5069175ejc.78.2021.05.30.14.30.01 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 30 May 2021 14:30:01 -0700 (PDT) From: auxsvr@gmail.com To: linux-btrfs@vger.kernel.org Subject: Write time tree block corruption detected Date: Mon, 31 May 2021 00:30:00 +0300 Message-ID: <1861574.PYKUYFuaPT@localhost.localdomain> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org Hello, On linux 5.3.18-lp152.75-default (openSUSE 15.2), I got the following error message: [33573.070335] BTRFS critical (device sda2): corrupt leaf: root=3 block=531135201280 slot=0 devid=1 invalid bytes used: have 64503152640 expect [0, 64424509440] [33573.070338] BTRFS error (device sda2): block=531135201280 write time tree block corruption detected [33573.071909] BTRFS: error (device sda2) in btrfs_commit_transaction:2264: errno=-5 IO failure (Error while writing out transaction) [33573.071911] BTRFS info (device sda2): forced readonly [33573.071913] BTRFS warning (device sda2): Skipping commit of aborted transaction. [33573.071915] BTRFS: error (device sda2) in cleanup_transaction:1823: errno=-5 IO failure [33573.071917] BTRFS info (device sda2): delayed_refs has NO entry [33577.283856] BTRFS info (device sda2): delayed_refs has NO entry Probably related is that the filesystem had less than 1 GiB free when this occurred. Rebooting and deleting some files seemed to have resolved it for a while, until: [ 5201.020901] BTRFS critical (device sda2): corrupt leaf: root=3 block=536671682560 slot=0 devid=1 invalid bytes used: have 64503152640 expect [0, 64424509440] [ 5201.020904] BTRFS error (device sda2): block=536671682560 write time tree block corruption detected [ 5201.022983] BTRFS: error (device sda2) in btrfs_commit_transaction:2264: errno=-5 IO failure (Error while writing out transaction) [ 5201.022985] BTRFS info (device sda2): forced readonly [ 5201.022987] BTRFS warning (device sda2): Skipping commit of aborted transaction. [ 5201.022988] BTRFS: error (device sda2) in cleanup_transaction:1823: errno=-5 IO failure [ 5201.022991] BTRFS info (device sda2): delayed_refs has NO entry [ 5201.023071] BTRFS info (device sda2): delayed_refs has NO entry after a successful scrub and balance. This time df reports 8.8GiB free, but: # btrfs fi df / Data, single: total=55.98GiB, used=47.18GiB System, single: total=32.00MiB, used=16.00KiB Metadata, single: total=2.00GiB, used=1.01GiB GlobalReserve, single: total=512.00MiB, used=0.00B # btrfs fi show / Label: none uuid: 44c67fa4-e2c4-4da5-9d07-98959ff77bc4 Total devices 1 FS bytes used 48.19GiB devid 1 size 60.00GiB used 60.07GiB path /dev/sda2 60.07GiB used out of 60.00GiB! I recall that this is what I saw the first time too, so it might be related to the cause. Is there anything I can do to ensure that the filesystem is not further damaged and that the issue is resolved? Regards, Petros