[  673.935288] btrfs: device fsid 7cf95491-8ec6-48a2-b4c4-4b80650d169a devid 1 transid 48438 /dev/sda4
[  673.935894] btrfs: enabling auto recovery
[  673.935902] btrfs: disk space caching is enabled
[  673.937904] btrfs bad tree block start 0 325877760
[  673.937989] btrfs bad tree block start 0 325877760
[  673.938067] btrfs bad tree block start 0 325091328
[  673.938074] btrfs: failed to read tree root on sda4
[  673.938149] btrfs bad tree block start 0 323764224
[  673.938157] btrfs: failed to read tree root on sda4
[  673.938250] btrfs bad tree block start 0 322895872
[  673.938257] btrfs: failed to read tree root on sda4
[  673.968438] btrfs: open_ctree failed