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([2a00:1370:812d:6b65:ffac:bd33:4d59:de4a]) by smtp.gmail.com with ESMTPSA id y76sm61199lff.45.2020.05.13.09.11.56 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 13 May 2020 09:11:56 -0700 (PDT) Subject: Re: Error when using btrfs subvolume snapshot & send | receive To: =?UTF-8?Q?Ren=c3=a9_Fricke-M=c3=bcller?= , linux-btrfs@vger.kernel.org References: <57021127-01ea-6533-6de6-56c4f22c4a5b@gmail.com> From: Andrei Borzenkov Autocrypt: addr=arvidjaar@gmail.com; prefer-encrypt=mutual; keydata= LS0tLS1CRUdJTiBQR1AgUFVCTElDIEtFWSBCTE9DSy0tLS0tCgptUUdpQkR4aVJ3d1JCQUMz Q045d2R3cFZFcVVHbVNvcUY4dFdWSVQ0UC9iTENTWkxraW5TWjJkcnNibEtwZEc3CngrZ3V4 d3RzK0xnSThxamYvcTVMYWgxVHdPcXpEdmpIWUoxd2JCYXV4WjAzbkR6U0xVaEQ0TXMxSXNx bEl3eVQKTHVtUXM0dmNRZHZMeGpGc0c3MGFEZ2xnVVNCb2d0YUlFc2lZWlhsNFgwajNMOWZW c3R1ejQvd1h0d0NnMWNOLwp5di9lQkMwdGtjTTFuc0pYUXJDNUF5OEQvMWFBNXFQdGljTEJw bUVCeHFrZjBFTUh1enlyRmxxVncxdFVqWitFCnAyTE1sZW04bWFsUHZmZFpLRVo3MVcxYS9Y YlJuOEZFU09wMHRVYTVHd2RvRFhnRXAxQ0pVbitXTHVyUjBLUEQKZjAxRTRqL1BISEFvQUJn cnFjT1RjSVZvTnB2MmdOaUJ5U1ZzTkd6RlhUZVkvWWQ2dlFjbGtxakJZT05HTjNyOQpSOGJX QS8wWTFqNFhLNjFxam93UmszSXk4c0JnZ00zUG1tTlJVSllncm9lcnBjQXIyYnl6NndUc2Iz VTdPelVaCjFMbGdpc2s1UXVtMFJONzdtM0kzN0ZYbEloQ21TRVk3S1pWekdOVzNibHVnTEhj ZncvSHVDQjdSMXc1cWlMV0sKSzZlQ1FITCtCWndpVThoWDNkdFRxOWQ3V2hSVzVuc1ZQRWFQ cXVkUWZNU2kvVXgxa2JRbVFXNWtjbVY1SUVKdgpjbnBsYm10dmRpQThZWEoyYVdScVlXRnlR R2R0WVdsc0xtTnZiVDZJWUFRVEVRSUFJQVVDU1hzNk5RSWJBd1lMCkNRZ0hBd0lFRlFJSUF3 UVdBZ01CQWg0QkFoZUFBQW9KRUVlaXpMcmFYZmVNTE9ZQW5qNG92cGthK21YTnpJbWUKWUNk NUxxVzV0bzhGQUo0dlA0SVcrSWM3ZVlYeENMTTcvem05WU1VVmJyUW5RVzVrY21WNUlFSnZj bnBsYm10dgpkaUE4WVhKMmFXUnFZV0Z5UUc1bGQyMWhhV3d1Y25VK2lGNEVFeEVDQUI0RkFr SXR5WkFDR3dNR0N3a0lCd01DCkF4VUNBd01XQWdFQ0hnRUNGNEFBQ2drUVI2TE11dHBkOTR4 ajhnQ2VJbThlK2U0cXhETWpRRXhGYlVMNXdNaWkKWUQwQW9LbUlCUzVIRW9wL1R5UUpkTmc2 U3Z6VmlQRGR0Q1JCYm1SeVpYa2dRbTl5ZW1WdWEyOTJJRHhoY25acApaR3BoWVhKQWJXRnBi QzV5ZFQ2SVhBUVRFUUlBSEFVQ1Bxems4QUliQXdRTEJ3TUNBeFVDQXdNV0FnRUNIZ0VDCkY0 QUFDZ2tRUjZMTXV0cGQ5NHlEdFFDZ2k5NHJoQXdTMXFqK2ZhampiRE02QmlTN0Irc0FvSi9S RG1hN0tyQTEKbkllc2JuS29MY1FMYkpZbHRDUkJibVJ5WldvZ1FtOXljMlZ1YTI5M0lEeGhj blpwWkdwaFlYSkFiV0ZwYkM1eQpkVDZJVndRVEVRSUFGd1VDUEdKSERRVUxCd29EQkFNVkF3 SURGZ0lCQWhlQUFBb0pFRWVpekxyYVhmZU1pcFlBCm9MblllRUJmOGNvV2lud3hUZThEVjBS T2J4N1NBS0RFamwzdFFxZEY3MGFQd0lPMmgvM0ZqczJjZnJRbVFXNWsKY21WcElFSnZjbnBs Ym10dmRpQThZWEoyYVdScVlXRnlRR2R0WVdsc0xtTnZiVDZJWlFRVEVRSUFKUUliQXdZTApD UWdIQXdJR0ZRZ0NDUW9MQkJZQ0F3RUNIZ0VDRjRBRkFsaVdBaVFDR1FFQUNna1FSNkxNdXRw ZDk0d0ZHd0NlCk51UW5NRHh2ZS9GbzNFdllJa0FPbit6RTIxY0FuUkNRVFhkMWhUZ2NSSGZw QXJFZC9SY2I1K1NjdVFFTkJEeGkKUnlRUUJBQ1F0TUUzM1VIZkZPQ0FwTGtpNGtMRnJJdzE1 QTVhc3VhMTBqbTVJdCtoeHpJOWpEUjkvYk5FS0RUSwpTY2lIbk03YVJVZ2dMd1R0KzZDWGtN eThhbit0VnFHTC9NdkRjNC9SS0tsWnhqMzl4UDd3VlhkdDh5MWNpWTRaCnFxWmYzdG1tU045 RGxMY1pKSU9UODJEYUpadXZyN1VKN3JMekJGYkFVaDR5UkthTm53QURCd1FBak52TXIvS0IK Y0dzVi9VdnhaU20vbWRwdlVQdGN3OXFtYnhDcnFGUW9CNlRtb1o3RjZ3cC9yTDNUa1E1VUVs UFJnc0cxMitEawo5R2dSaG5ueFRIQ0ZnTjFxVGlaTlg0WUlGcE5yZDBhdTNXL1hrbzc5TDBj NC80OXRlbjVPckZJL3BzeDUzZmhZCnZMWWZrSm5jNjJoOGhpTmVNNmtxWWEveDBCRWRkdTky Wkc2SVJnUVlFUUlBQmdVQ1BHSkhKQUFLQ1JCSG9zeTYKMmwzM2pNaGRBSjQ4UDdXRHZLTFFR NU1Lbm4yRC9USTMzN3VBL2dDZ241bW52bTRTQmN0YmhhU0JnY2tSbWdTeApmd1E9Cj1nWDEr Ci0tLS0tRU5EIFBHUCBQVUJMSUMgS0VZIEJMT0NLLS0tLS0K Message-ID: Date: Wed, 13 May 2020 19:11:55 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.7.0 MIME-Version: 1.0 In-Reply-To: <57021127-01ea-6533-6de6-56c4f22c4a5b@gmail.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org 13.05.2020 15:16, René Fricke-Müller пишет: > 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" > You did not say whether error is on source or destination side. > 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. > Still unclear whether it is send or receive. > 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 > > This describes error on destination. Such errors are indications that btrfs finds wrong base snapshot to apply changes to. Does your source subvolume has received UUID by any chance? Output of btrfs subvolume show btrfs subvolume show would be interesting. > > Can you confirm this error and/or help me? > > > Kind Regards > > René