[200809.885307] datto: block device is already being traced: -22
[200809.886917] datto: error setting up base block device: -22
[200809.888380] datto: error setting up tracer as active snapshot: -22
[200809.889929] datto: error during setup ioctl handler: -22
Ubuntu 20.04.4 LTS; Kernel 5.4.0-105-generic x86_64
dmesg
reference: https://forums.urbackup.org/t/datto-block-device-is-already-being-traced/9915