On 16.01.20 г. 18:53 ч., Peter Luladjiev wrote: > Hello, thanks for helping, here is the output: > > btrfs check --force /dev/mapper/system-root > > Opening filesystem to check... > WARNING: filesystem mounted, continuing because of --force > Checking filesystem on /dev/mapper/system-root > UUID: 9639a3e6-cd08-4270-b4d1-d2946d2b8d2e > [1/7] checking root items > [2/7] checking extents > ref mismatch on [1497018368 4096] extent item 72057183177116417, found 1 > incorrect local backref count on 1497022464 parent 51611369472 owner 0 > offset 0 found 1 wanted 3087007745 back 0x564582174c70 > backpointer mismatch on [1497022464 4096] > ERROR: errors found in extent allocation tree or chunk allocation > [3/7] checking free space cache > [4/7] checking fs roots > [5/7] checking only csums items (without verifying data) > [6/7] checking root refs > [7/7] checking quota groups skipped (not enabled on this FS) > found 53532647424 bytes used, error(s) found > total csum bytes: 43476204 > total tree bytes: 1551368192 > total fs tree bytes: 1421295616 > total extent tree bytes: 70238208 > btree space waste bytes: 276638054 > file data blocks allocated: 331679563776 > referenced 105423634432 > Right so it seems this the only error. Just to be sure run btrfs check --mode lowmem since it provides more readable output. If this is the only error in the filesystem then btrfs check --repair --mode lowmem should be able to fix it.
