I'm looking at turning an old PC into a backup server / NAS. I could have been bitten by the recent regression if it had caused issue with my backup USB drive which is also using btrfs. If I am running a recent 5.1x or 5.2.x kernel on my main machine and the backup/NAS machine is running 4.19.72 (or later) I have two questions: 1. Will the difference in version be likely to cause issues? 2. If there are issues with the file system on the main machine can send/receive possibly propagate them to the backup machine thus damaging the backup? If so rsync would be safer at the expense of speed, I would assume? My motivation is that if I am using a kernel from an older series on the backup machine it I'd be less likely to be hit by any regression on the main machine and the backup machine at the same time. For context this is home use, so 2 x 6TB drives, RAID1, on the main machine. thanks, Pete
