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Fri, 28 Feb 2025 00:57:51 +0000 Date: Fri, 28 Feb 2025 00:17:19 +0000 (UTC) From: Marian Popeanga To: linux-btrfs@vger.kernel.org Message-ID: <1212378578.3019983.1740701839353@mail.yahoo.com> Subject: BTRFS: error (device md1) in btrfs_commit_transaction:2371: errno=-5 IO failure Precedence: bulk X-Mailing-List: linux-btrfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit References: <1212378578.3019983.1740701839353.ref@mail.yahoo.com> X-Mailer: WebService/1.1.23369 YMailNodin Hi All, I am getting this error on a nas server using 4 HDD, recently after i've had disks in a raid 5 array expanded in size and the file system expanded as well. What to point out, that during the sync process when i replaced one of the disk, there was other disk which complained that there is 1 byte error (s.m.a.r.t reported it)on it which can not relocated or read. Thats 1 byte error looks to have been there before, but it never caused a problem, like that i am seeing now. That disk itself never failed during the sync and replacement of all the other disks. It just had these IO error probably related to that 1 byte error, which cause the nas to actually flag me about this problem first time. After all the 4 disks were upgraded, i did a btrfs check and there wasn't any error reported. Now, this error shows up and makes the file system read only. I've even tried a btrfs --repair but this error is still there. I am wondering if this can be fixed without having to rebuild all this file system and what can be the steps? Is there a way to know on which access this error happens ? Been trying to read all th files on the file system and they read fine, but this error still showed up. [29495.068397] BTRFS error (device md1): bdev /dev/md1 errs: wr 11, rd 5, flush 0, corrupt 0, gen 0 [29495.077392] BTRFS error (device md1): bdev /dev/md1 errs: wr 12, rd 5, flush 0, corrupt 0, gen 0 [29495.086360] BTRFS error (device md1): bdev /dev/md1 errs: wr 13, rd 5, flush 0, corrupt 0, gen 0 [29495.096714] BTRFS: error (device md1) in btrfs_commit_transaction:2371: errno=-5 IO failure (Error while writing out transaction) [29495.108649] BTRFS info (device md1): forced readonly [29495.113762] BTRFS warning (device md1): Skipping commit of aborted transaction. [29495.121259] BTRFS: error (device md1) in cleanup_transaction:1975: errno=-5 IO failure The kernel version is : 5.13.x x86_64 GNU/Linux thanks alot