btrfs bork btrfs-debug-tree -R log

warning devid 10 not found already
root tree: 51400335962112 level 2
chunk tree: 51400298528768 level 2
extent tree key (EXTENT_TREE ROOT_ITEM 0) 51400350998528 level 3
device tree key (DEV_TREE ROOT_ITEM 0) 51402498801664 level 2
fs tree key (FS_TREE ROOT_ITEM 0) 51402580684800 level 3
checksum tree key (CSUM_TREE ROOT_ITEM 0) 51402599358464 level 4
data reloc tree key (DATA_RELOC_TREE ROOT_ITEM 0) 51402496454656 level 0
btrfs root backup slot 0
	tree root gen 291572 block 51402580103168
		extent root gen 291572 block 51402580127744
		chunk root gen 291539 block 51400298528768
		device root gen 291539 block 51402498801664
		csum root gen 291572 block 51402588909568
		fs root gen 291571 block 51402580684800
		5844678651904 used 16253239984128 total 8 devices
btrfs root backup slot 1
	tree root gen 291573 block 51402592247808
		extent root gen 291573 block 51402592251904
		chunk root gen 291539 block 51400298528768
		device root gen 291539 block 51402498801664
		csum root gen 291573 block 51402599358464
		fs root gen 291571 block 51402580684800
		5844678651904 used 16253239984128 total 8 devices
btrfs root backup slot 2
	tree root gen 291570 block 51402589433856
		extent root gen 291570 block 51402578415616
		chunk root gen 291539 block 51400298528768
		device root gen 291539 block 51402498801664
		csum root gen 291571 block 51402592567296
		fs root gen 291571 block 51402580684800
		5844621168640 used 16253239984128 total 8 devices
btrfs root backup slot 3
	tree root gen 291571 block 51402605244416
		extent root gen 291571 block 51402600255488
		chunk root gen 291539 block 51400298528768
		device root gen 291539 block 51402498801664
		csum root gen 291571 block 51402592567296
		fs root gen 291571 block 51402580684800
		5844678651904 used 16253239984128 total 8 devices
total bytes 16253239984128
bytes used 5844680445952
uuid 0850433e-6689-4838-bfa5-ba41ba1f150e
Btrfs v0.20-rc1-253-g7854c8b