I'm in the middle of a projected 92TB btrfs restore to another server and kept having issues keeping the restore going past the first 200GB. I created an "Ignore" option for the loop question, mentioned in issue #59; and it's managed to restore several terabytes so far.
https://github.com/kdave/btrfs-progs/issues/59#issuecomment-497917965 https://github.com/unquietwiki/btrfs-progs/commit/6f4959237077b8fc95339167ecdd07241c8db937 -- Michael Adams https://unquietwiki.com/
