hello.
generation_errs appears on / partition
[root@s-nas-003 ~]# btrfs device stats /
[/dev/sda3].write_io_errs 0
[/dev/sda3].read_io_errs 0
[/dev/sda3].flush_io_errs 0
[/dev/sda3].corruption_errs 0
[/dev/sda3].generation_errs 5
in /var/log/messages:
Jul 29 22:08:20 s-nas-003 kernel: BTRFS error (device sda3): parent transid verify failed on 714555392 wanted 1796 found 24
after starting scrub new messages in /var/log/messages:
Jul 30 00:39:19 s-nas-003 kernel: BTRFS warning (device sda3): checksum/header error at logical 714555392 on dev /dev/sda3, sector 1412000: metadata leaf (level 0) in tree 258
Jul 30 00:39:19 s-nas-003 kernel: BTRFS warning (device sda3): checksum/header error at logical 714555392 on dev /dev/sda3, sector 1412000: metadata leaf (level 0) in tree 258
Jul 30 00:39:19 s-nas-003 kernel: BTRFS error (device sda3): bdev /dev/sda3 errs: wr 0, rd 0, flush 0, corrupt 0, gen 1
Jul 30 00:39:19 s-nas-003 kernel: BTRFS error (device sda3): unable to fixup (regular) error at logical 714555392 on dev /dev/sda3
Jul 30 00:39:19 s-nas-003 kernel: BTRFS warning (device sda3): checksum/header error at logical 714555392 on dev /dev/sda3, sector 3509152: metadata leaf (level 0) in tree 258
Jul 30 00:39:19 s-nas-003 kernel: BTRFS warning (device sda3): checksum/header error at logical 714555392 on dev /dev/sda3, sector 3509152: metadata leaf (level 0) in tree 258
Jul 30 00:39:19 s-nas-003 kernel: BTRFS error (device sda3): bdev /dev/sda3 errs: wr 0, rd 0, flush 0, corrupt 0, gen 2
Jul 30 00:39:19 s-nas-003 kernel: BTRFS warning (device sda3): checksum/header error at logical 768704512 on dev /dev/sda3, sector 3614912: metadata leaf (level 0) in tree 2
Jul 30 00:39:19 s-nas-003 kernel: BTRFS warning (device sda3): checksum/header error at logical 768704512 on dev /dev/sda3, sector 3614912: metadata leaf (level 0) in tree 2
Jul 30 00:39:19 s-nas-003 kernel: BTRFS error (device sda3): bdev /dev/sda3 errs: wr 0, rd 0, flush 0, corrupt 0, gen 3
Jul 30 00:39:19 s-nas-003 kernel: BTRFS error (device sda3): unable to fixup (regular) error at logical 714555392 on dev /dev/sda3
Jul 30 00:39:19 s-nas-003 kernel: BTRFS error (device sda3): fixed up error at logical 768704512 on dev /dev/sda3
Jul 30 00:40:01 s-nas-003 systemd: Started Session 572 of user root.
Jul 30 00:41:29 s-nas-003 kernel: BTRFS warning (device sda3): checksum/header error at logical 714555392 on dev /dev/sda3, sector 1412000: metadata leaf (level 0) in tree 258
Jul 30 00:41:29 s-nas-003 kernel: BTRFS warning (device sda3): checksum/header error at logical 714555392 on dev /dev/sda3, sector 1412000: metadata leaf (level 0) in tree 258
Jul 30 00:41:29 s-nas-003 kernel: BTRFS error (device sda3): bdev /dev/sda3 errs: wr 0, rd 0, flush 0, corrupt 0, gen 4
Jul 30 00:41:29 s-nas-003 kernel: BTRFS error (device sda3): unable to fixup (regular) error at logical 714555392 on dev /dev/sda3
Jul 30 00:41:29 s-nas-003 kernel: BTRFS warning (device sda3): checksum/header error at logical 714555392 on dev /dev/sda3, sector 3509152: metadata leaf (level 0) in tree 258
Jul 30 00:41:29 s-nas-003 kernel: BTRFS warning (device sda3): checksum/header error at logical 714555392 on dev /dev/sda3, sector 3509152: metadata leaf (level 0) in tree 258
Jul 30 00:41:29 s-nas-003 kernel: BTRFS error (device sda3): bdev /dev/sda3 errs: wr 0, rd 0, flush 0, corrupt 0, gen 5
Jul 30 00:41:29 s-nas-003 kernel: BTRFS error (device sda3): unable to fixup (regular) error at logical 714555392 on dev /dev/sda3