Hallöchen!

A "btrfs check /dev/" on a single disk yields myriads of

ref mismatch on [1996106940416 16384] extent item 1, found 0
backref 1996106940416 parent 1996052905984 not referenced back 0x559457b248c0
incorrect global backref count on 1996106940416 found 1 wanted 0
backpointer mismatch on [1996106940416 16384]
owner ref check failed [1996106940416 16384]
…
ERROR: errors found in extent allocation tree or chunk allocation

Should I try to --repair this?

Tschö,
Torsten.

-- 
Torsten Bronger