Dear BTRFS community, I've a raid 1 setup on two luks encrypted drives for 4 years that serves me as btrbk backup target from an other computer. There is a lot of ro snaptshots on it. I've mistakenly launched a balance on it which was extremely slow and tried to cancelled it. After two days of cancelling without results, I decided to power off the computer. After the reboot, even with the skip_balance mount option, the mounting is endless, no error in the kernel message and it never mounts. What I have done so far: - mount the volume with the ro option (fast to mount, data OK). - scrub in ro mode, no error found - btrfs check In the extent check there is plenty of errors like this : => ref mismatch on [9404816285696 32768] extent item 6, found 5 incorrect local backref count on 9404816285696 parent 5712684302336 owner 0 offset 0 found 0 wanted 1 back 0x55f371ee1ad0 backref disk bytenr does not match extent record, bytenr=9404816285696, ref bytenr=0 backpointer mismatch on [9404816285696 32768] <= No errors in other checks, though checking "quota groups" is very slow. What should I do ? btrfs check --repair ? btrfs check --init-extent-tree ? btrfs --clear-space-cache ? Will the "init extent tree" option break btrfs receive with old snapshot parents ? Best regards, Pepie34
