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[2.202.217.216]) by smtp.gmail.com with ESMTPSA id g9sm17720299wru.7.2020.05.13.05.16.28 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 13 May 2020 05:16:28 -0700 (PDT) To: linux-btrfs@vger.kernel.org From: =?UTF-8?Q?Ren=c3=a9_Fricke-M=c3=bcller?= Subject: Error when using btrfs subvolume snapshot & send | receive Message-ID: <57021127-01ea-6533-6de6-56c4f22c4a5b@gmail.com> Date: Wed, 13 May 2020 14:16:27 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.7.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Content-Language: en-US Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org Hello, I have some trouble using btrfs snapshots on Ubuntu 19.10. I am creating snapshots of my /-subvolume and use send | receive for incremental transferring. Sometimes I get errors like "ERROR: cannot open /media/Backup/OS/snapshots/snap_2020-05-13_11:39/o13170-19818-0: No such file or directory" When I look deeper with the -v option, it seems like btrfs is creating a folder or something, moves it and then tries to rename the original folder. The error occures on different devices, but only when I make snapshots of the root of my os subvolume. The error occures only from time to time (perhaps every 5th to 15th snapshot) the only solution to send a new snapshot complete and then send incremental snapshots. I tried different kernels: Currently I am using 5.3.0-51-generic on one device but also tried 5.5 and 5.6.11. I found this topic on github, where some people have the same errors. (but I am using an own script, not that program) https://github.com/digint/btrbk/issues/223 Can you confirm this error and/or help me? Kind Regards René