Tom Hunt wrote on 2016/01/07 19:02 -0700:
Does the sudden end means a segfault?
The sudden end means an end. The program terminated without any
further output or error indication.
And what's the output of btrfs-debug-tree /dev/mapper/rootvol_1 -b 6210223521792?
[root@archiso ~]# btrfs-debug-tree /dev/mapper/rootvol_1 -b 6210223521792
bad key ordering 49 50
leaf 6210223521792 items 123 free space 55 generation 257371 owner 1
fs uuid 91f7e058-1142-4036-b1f7-4f64163dc8ae
chunk uuid 6abf465c-c677-4879-a4ca-d632e43e01e4
item 0 key (7302 INODE_ITEM 0) itemoff 16123 itemsize 160
inode generation 37573 transid 37573 size 262144 nbytes 1048576
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 1 key (7302 EXTENT_DATA 0) itemoff 16070 itemsize 53
extent data disk byte 7564439363584 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 2 key (7303 INODE_ITEM 0) itemoff 15910 itemsize 160
inode generation 37573 transid 37573 size 262144 nbytes 786432
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 3 key (7303 EXTENT_DATA 0) itemoff 15857 itemsize 53
extent data disk byte 7564439662592 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 4 key (7304 INODE_ITEM 0) itemoff 15697 itemsize 160
inode generation 36550 transid 36550 size 262144 nbytes 262144
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 5 key (7304 EXTENT_DATA 0) itemoff 15644 itemsize 53
extent data disk byte 7517322158080 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 6 key (7305 INODE_ITEM 0) itemoff 15484 itemsize 160
inode generation 37573 transid 37573 size 262144 nbytes 524288
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 7 key (7305 EXTENT_DATA 0) itemoff 15431 itemsize 53
extent data disk byte 7564439941120 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 8 key (7306 INODE_ITEM 0) itemoff 15271 itemsize 160
inode generation 37573 transid 37573 size 262144 nbytes 786432
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 9 key (7306 EXTENT_DATA 0) itemoff 15218 itemsize 53
extent data disk byte 7564440219648 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 10 key (7307 INODE_ITEM 0) itemoff 15058 itemsize 160
inode generation 37576 transid 37576 size 262144 nbytes 1310720
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 11 key (7307 EXTENT_DATA 0) itemoff 15005 itemsize 53
extent data disk byte 7564425949184 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 12 key (7308 INODE_ITEM 0) itemoff 14845 itemsize 160
inode generation 36586 transid 36586 size 262144 nbytes 262144
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 13 key (7308 EXTENT_DATA 0) itemoff 14792 itemsize 53
extent data disk byte 7355300618240 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 14 key (7309 INODE_ITEM 0) itemoff 14632 itemsize 160
inode generation 257365 transid 257365 size 262144
nbytes 11781537792
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 15 key (7309 EXTENT_DATA 0) itemoff 14579 itemsize 53
extent data disk byte 7770707218432 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 16 key (7310 INODE_ITEM 0) itemoff 14419 itemsize 160
inode generation 37590 transid 37590 size 262144 nbytes 786432
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 17 key (7310 EXTENT_DATA 0) itemoff 14366 itemsize 53
extent data disk byte 7569787527168 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 18 key (7311 INODE_ITEM 0) itemoff 14206 itemsize 160
inode generation 37591 transid 37591 size 262144 nbytes 1048576
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 19 key (7311 EXTENT_DATA 0) itemoff 14153 itemsize 53
extent data disk byte 7569797865472 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 20 key (7312 INODE_ITEM 0) itemoff 13993 itemsize 160
inode generation 36625 transid 36625 size 262144 nbytes 262144
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 21 key (7312 EXTENT_DATA 0) itemoff 13940 itemsize 53
extent data disk byte 7517400543232 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 22 key (7313 INODE_ITEM 0) itemoff 13780 itemsize 160
inode generation 36634 transid 36634 size 262144 nbytes 262144
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 23 key (7313 EXTENT_DATA 0) itemoff 13727 itemsize 53
extent data disk byte 7531318194176 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 24 key (7314 INODE_ITEM 0) itemoff 13567 itemsize 160
inode generation 239734 transid 239734 size 262144
nbytes 2359558144
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 25 key (7314 EXTENT_DATA 0) itemoff 13514 itemsize 53
extent data disk byte 8005861564416 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 26 key (7315 INODE_ITEM 0) itemoff 13354 itemsize 160
inode generation 36652 transid 36652 size 262144 nbytes 262144
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 27 key (7315 EXTENT_DATA 0) itemoff 13301 itemsize 53
extent data disk byte 4990757240832 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 28 key (7316 INODE_ITEM 0) itemoff 13141 itemsize 160
inode generation 36661 transid 36661 size 262144 nbytes 262144
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 29 key (7316 EXTENT_DATA 0) itemoff 13088 itemsize 53
extent data disk byte 7066322538496 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 30 key (7317 INODE_ITEM 0) itemoff 12928 itemsize 160
inode generation 36672 transid 36672 size 262144 nbytes 262144
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 31 key (7317 EXTENT_DATA 0) itemoff 12875 itemsize 53
extent data disk byte 7278922661888 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 32 key (7318 INODE_ITEM 0) itemoff 12715 itemsize 160
inode generation 36682 transid 36682 size 262144 nbytes 262144
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 33 key (7318 EXTENT_DATA 0) itemoff 12662 itemsize 53
extent data disk byte 7313284538368 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 34 key (7319 INODE_ITEM 0) itemoff 12502 itemsize 160
inode generation 36692 transid 36692 size 262144 nbytes 262144
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 35 key (7319 EXTENT_DATA 0) itemoff 12449 itemsize 53
extent data disk byte 7184434880512 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 36 key (7320 INODE_ITEM 0) itemoff 12289 itemsize 160
inode generation 36702 transid 36702 size 262144 nbytes 262144
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 37 key (7320 EXTENT_DATA 0) itemoff 12236 itemsize 53
extent data disk byte 7518426820608 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 38 key (7321 INODE_ITEM 0) itemoff 12076 itemsize 160
inode generation 36711 transid 36711 size 262144 nbytes 262144
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 39 key (7321 EXTENT_DATA 0) itemoff 12023 itemsize 53
extent data disk byte 7372338782208 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 40 key (7322 INODE_ITEM 0) itemoff 11863 itemsize 160
inode generation 36720 transid 36720 size 262144 nbytes 262144
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 41 key (7322 EXTENT_DATA 0) itemoff 11810 itemsize 53
extent data disk byte 7526872854528 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 42 key (7323 INODE_ITEM 0) itemoff 11650 itemsize 160
inode generation 36729 transid 36729 size 262144 nbytes 262144
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 43 key (7323 EXTENT_DATA 0) itemoff 11597 itemsize 53
extent data disk byte 4990756978688 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 44 key (7324 INODE_ITEM 0) itemoff 11437 itemsize 160
inode generation 36739 transid 36739 size 262144 nbytes 262144
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 45 key (7324 EXTENT_DATA 0) itemoff 11384 itemsize 53
extent data disk byte 7520553996288 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 46 key (7325 INODE_ITEM 0) itemoff 11224 itemsize 160
inode generation 36749 transid 36749 size 262144 nbytes 262144
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 47 key (7325 EXTENT_DATA 0) itemoff 11171 itemsize 53
extent data disk byte 7531508781056 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 48 key (7326 INODE_ITEM 0) itemoff 11011 itemsize 160
inode generation 251050 transid 251050 size 262144
nbytes 8435793920
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 49 key (7326 EXTENT_DATA 0) itemoff 10958 itemsize 53
extent data disk byte 7747063099392 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 50 key (7327 INODE_ITEM 0) itemoff 10798 itemsize 160
inode generation 36767 transid 36767 size 262144 nbytes 262144
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 51 key (7327 EXTENT_DATA 0) itemoff 10745 itemsize 53
extent data disk byte 7517323468800 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 52 key (7328 INODE_ITEM 0) itemoff 10585 itemsize 160
inode generation 36777 transid 36777 size 262144 nbytes 262144
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 53 key (7328 EXTENT_DATA 0) itemoff 10532 itemsize 53
extent data disk byte 7529166970880 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 54 key (7329 INODE_ITEM 0) itemoff 10372 itemsize 160
inode generation 40097 transid 40097 size 262144 nbytes 82313216
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 55 key (7329 EXTENT_DATA 0) itemoff 10319 itemsize 53
extent data disk byte 7370190655488 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 56 key (3234 INODE_ITEM 0) itemoff 10159 itemsize 160
inode generation 36795 transid 36795 size 262144 nbytes 262144
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 57 key (7346 EXTENT_DATA 0) itemoff 10106 itemsize 53
extent data disk byte 7521490550784 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
Item 56 and 57 are corrupted.
Their inode number should be 7330, but they are not.
If the output is valid, especially for the owner, then it means your
free space cache is damaged, but that's a very small problem though.
item 58 key (7331 INODE_ITEM 0) itemoff 9946 itemsize 160
inode generation 36804 transid 36804 size 262144 nbytes 262144
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 59 key (7331 EXTENT_DATA 0) itemoff 9893 itemsize 53
extent data disk byte 7526874955776 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 60 key (7332 INODE_ITEM 0) itemoff 9733 itemsize 160
inode generation 257363 transid 257363 size 262144
nbytes 13501202432
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 61 key (7332 EXTENT_DATA 0) itemoff 9680 itemsize 53
extent data disk byte 7747053572096 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 62 key (7333 INODE_ITEM 0) itemoff 9520 itemsize 160
inode generation 257371 transid 257371 size 262144
nbytes 16589520896
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 63 key (7333 EXTENT_DATA 0) itemoff 9467 itemsize 53
extent data disk byte 7775023665152 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 64 key (7334 INODE_ITEM 0) itemoff 9307 itemsize 160
inode generation 239755 transid 239755 size 262144
nbytes 13442482176
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 65 key (7334 EXTENT_DATA 0) itemoff 9254 itemsize 53
extent data disk byte 7896225873920 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 66 key (7335 INODE_ITEM 0) itemoff 9094 itemsize 160
inode generation 239755 transid 239755 size 262144
nbytes 1324613632
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 67 key (7335 EXTENT_DATA 0) itemoff 9041 itemsize 53
extent data disk byte 7896226185216 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 68 key (7336 INODE_ITEM 0) itemoff 8881 itemsize 160
inode generation 240953 transid 240953 size 262144
nbytes 3632529408
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 69 key (7336 EXTENT_DATA 0) itemoff 8828 itemsize 53
extent data disk byte 5919597350912 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 70 key (7337 INODE_ITEM 0) itemoff 8668 itemsize 160
inode generation 243010 transid 243010 size 262144
nbytes 2379481088
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 71 key (7337 EXTENT_DATA 0) itemoff 8615 itemsize 53
extent data disk byte 5918852136960 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 72 key (7338 INODE_ITEM 0) itemoff 8455 itemsize 160
inode generation 79477 transid 79477 size 262144 nbytes 24117248
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 73 key (7338 EXTENT_DATA 0) itemoff 8402 itemsize 53
extent data disk byte 7715922624512 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 74 key (7339 INODE_ITEM 0) itemoff 8242 itemsize 160
inode generation 81958 transid 81958 size 262144 nbytes 78381056
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 75 key (7339 EXTENT_DATA 0) itemoff 8189 itemsize 53
extent data disk byte 7721189564416 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 76 key (7340 INODE_ITEM 0) itemoff 8029 itemsize 160
inode generation 83591 transid 83591 size 262144
nbytes 165150720
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 77 key (7340 EXTENT_DATA 0) itemoff 7976 itemsize 53
extent data disk byte 7744960389120 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 78 key (7341 INODE_ITEM 0) itemoff 7816 itemsize 160
inode generation 47076 transid 47076 size 262144 nbytes 262144
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 79 key (7341 EXTENT_DATA 0) itemoff 7763 itemsize 53
extent data disk byte 7518415810560 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 80 key (7342 INODE_ITEM 0) itemoff 7603 itemsize 160
inode generation 47085 transid 47085 size 262144 nbytes 1048576
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 81 key (7342 EXTENT_DATA 0) itemoff 7550 itemsize 53
extent data disk byte 7532088664064 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 82 key (7343 INODE_ITEM 0) itemoff 7390 itemsize 160
inode generation 47077 transid 47077 size 262144 nbytes 262144
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 83 key (7343 EXTENT_DATA 0) itemoff 7337 itemsize 53
extent data disk byte 7517316259840 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 84 key (7344 INODE_ITEM 0) itemoff 7177 itemsize 160
inode generation 47196 transid 47196 size 262144 nbytes 22282240
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 85 key (7344 EXTENT_DATA 0) itemoff 7124 itemsize 53
extent data disk byte 6878509641728 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 86 key (7345 INODE_ITEM 0) itemoff 6964 itemsize 160
inode generation 47078 transid 47078 size 262144 nbytes 262144
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 87 key (7345 EXTENT_DATA 0) itemoff 6911 itemsize 53
extent data disk byte 7517369085952 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 88 key (7346 INODE_ITEM 0) itemoff 6751 itemsize 160
inode generation 47235 transid 47235 size 262144 nbytes 23592960
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 89 key (7346 EXTENT_DATA 0) itemoff 6698 itemsize 53
extent data disk byte 6878511214592 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 90 key (7347 INODE_ITEM 0) itemoff 6538 itemsize 160
inode generation 47078 transid 47078 size 262144 nbytes 262144
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 91 key (7347 EXTENT_DATA 0) itemoff 6485 itemsize 53
extent data disk byte 7520553472000 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 92 key (7348 INODE_ITEM 0) itemoff 6325 itemsize 160
inode generation 47228 transid 47228 size 262144 nbytes 22020096
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 93 key (7348 EXTENT_DATA 0) itemoff 6272 itemsize 53
extent data disk byte 6878522159104 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 94 key (7349 INODE_ITEM 0) itemoff 6112 itemsize 160
inode generation 47078 transid 47078 size 262144 nbytes 262144
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 95 key (7349 EXTENT_DATA 0) itemoff 6059 itemsize 53
extent data disk byte 7531921424384 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 96 key (7350 INODE_ITEM 0) itemoff 5899 itemsize 160
inode generation 47181 transid 47181 size 262144 nbytes 13631488
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 97 key (7350 EXTENT_DATA 0) itemoff 5846 itemsize 53
extent data disk byte 6878515281920 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 98 key (7351 INODE_ITEM 0) itemoff 5686 itemsize 160
inode generation 47078 transid 47078 size 262144 nbytes 262144
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 99 key (7351 EXTENT_DATA 0) itemoff 5633 itemsize 53
extent data disk byte 7538744426496 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 100 key (7352 INODE_ITEM 0) itemoff 5473 itemsize 160
inode generation 47183 transid 47183 size 262144 nbytes 11796480
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 101 key (7352 EXTENT_DATA 0) itemoff 5420 itemsize 53
extent data disk byte 6878518218752 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 102 key (7353 INODE_ITEM 0) itemoff 5260 itemsize 160
inode generation 47078 transid 47078 size 262144 nbytes 262144
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 103 key (7353 EXTENT_DATA 0) itemoff 5207 itemsize 53
extent data disk byte 7540909154304 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 104 key (7354 INODE_ITEM 0) itemoff 5047 itemsize 160
inode generation 47196 transid 47196 size 262144 nbytes 15466496
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 105 key (7354 EXTENT_DATA 0) itemoff 4994 itemsize 53
extent data disk byte 6878513303552 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 106 key (7355 INODE_ITEM 0) itemoff 4834 itemsize 160
inode generation 47078 transid 47078 size 262144 nbytes 262144
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 107 key (7355 EXTENT_DATA 0) itemoff 4781 itemsize 53
extent data disk byte 7564487045120 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 108 key (7356 INODE_ITEM 0) itemoff 4621 itemsize 160
inode generation 47210 transid 47210 size 262144 nbytes 19660800
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 109 key (7356 EXTENT_DATA 0) itemoff 4568 itemsize 53
extent data disk byte 6878541139968 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 110 key (7357 INODE_ITEM 0) itemoff 4408 itemsize 160
inode generation 47079 transid 47079 size 262144 nbytes 262144
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 111 key (7357 EXTENT_DATA 0) itemoff 4355 itemsize 53
extent data disk byte 7538756612096 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 112 key (7358 INODE_ITEM 0) itemoff 4195 itemsize 160
inode generation 47079 transid 47079 size 262144 nbytes 262144
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 113 key (7358 EXTENT_DATA 0) itemoff 4142 itemsize 53
extent data disk byte 7582721437696 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 114 key (7359 INODE_ITEM 0) itemoff 3982 itemsize 160
inode generation 82232 transid 82232 size 262144 nbytes 44564480
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 115 key (7359 EXTENT_DATA 0) itemoff 3929 itemsize 53
extent data disk byte 7724558057472 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 116 key (7360 INODE_ITEM 0) itemoff 3769 itemsize 160
inode generation 47080 transid 47080 size 262144 nbytes 262144
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 117 key (7360 EXTENT_DATA 0) itemoff 3716 itemsize 53
extent data disk byte 4658994225152 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 118 key (7361 INODE_ITEM 0) itemoff 3556 itemsize 160
inode generation 47080 transid 47080 size 262144 nbytes 262144
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 119 key (7361 EXTENT_DATA 0) itemoff 3503 itemsize 53
extent data disk byte 6905566703616 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 120 key (7362 INODE_ITEM 0) itemoff 3343 itemsize 160
inode generation 79539 transid 79539 size 262144 nbytes 38535168
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
item 121 key (7362 EXTENT_DATA 0) itemoff 3290 itemsize 53
extent data disk byte 7720056217600 nr 262144
extent data offset 0 nr 262144 ram 262144
extent compression 0
item 122 key (7363 INODE_ITEM 0) itemoff 3130 itemsize 160
inode generation 47080 transid 47080 size 262144 nbytes 262144
block group 0 mode 100600 links 1 uid 0 gid 0
rdev 0 flags 0x1b
If btrfs-debug-tree can still output things like below, and the leaf's owner is still 2, I'd recommend to run btrfsck --init-extent-tree, which should has a good chance to fix it.
Although even in that case, I'm not 100% sure if it will work, or do more damage...
Would it be a sensible precaution to unplug one disk and attempt
recovery on a single one? If I understand correctly, all the data
should be available on either. This disk is quite significant to me,
and the other option is restoring from a week-old backup; annoying, if
not fatal.
You can try this method.
But after that, *NEVER* put all the two devices online *TOGETHER*.
Thanks,
Qu
For the record, I've also already bought new disks and will be
operating with those going forward, so a transfer of data will be
necessary in any case. (There was the possibility of hardware damage
from a flood a little while ago, and even if this is unrelated, I'm
paranoid about this volume.)
On Thu, Jan 7, 2016 at 6:48 PM, Qu Wenruo <quwenruo@xxxxxxxxxxxxxx> wrote:
Tom Hunt wrote on 2016/01/07 18:43 -0700:
I had done this already, but somehow forgot to include it. (Internet
suggests 'btrfs check' is synonym for 'btrfsck'; if this is not the
case, please advise.)
[root@archiso ~]# btrfs check /dev/mapper/rootvol_1
bad key ordering 49 50
Checking filesystem on /dev/mapper/rootvol_1
UUID: 91f7e058-1142-4036-b1f7-4f64163dc8ae
checking extents
bad key ordering 55 56
bad block 6210223521792
Errors found in extent allocation tree or chunk allocation
bad key ordering 55 56
Does the sudden end means a segfault?
And the other:
[root@archiso ~]# btrfs-debug-tree /dev/mapper/rootvol_1 -b 6210228551680
bad key ordering 49 50
leaf 6210228551680 items 195 free space 244 generation 257371 owner 2
That's extent tree, not a big problem as the whole extent tree can be easily
rebuilt.
And what's the output of btrfs-debug-tree /dev/mapper/rootvol_1 -b
6210223521792?
If btrfs-debug-tree can still output things like below, and the leaf's owner
is still 2, I'd recommend to run btrfsck --init-extent-tree, which should
has a good chance to fix it.
Although even in that case, I'm not 100% sure if it will work, or do more
damage...
Thanks,
Qu
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chunk uuid 6abf465c-c677-4879-a4ca-d632e43e01e4
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On Wed, Jan 6, 2016 at 11:02 PM, Qu Wenruo <quwenruo@xxxxxxxxxxxxxx>
wrote:
Did you tried btrfsck without --repair?
And would you please paste the output of the following command?
# btrfs-debug-tree <YOUR_DEVICE> -b 6210228551680
Thanks,
Qu
Tom Hunt wrote on 2016/01/06 22:16 -0700:
Some things I missed:
[root@archiso ~]# uname -a
Linux archiso 4.2.5-1-ARCH #1 SMP PREEMPT Tue Oct 27 08:13:28 CET 2015
x86_64 GNU/Linux
[root@archiso ~]# btrfs --version
btrfs-progs v4.3.1
[root@archiso ~]# btrfs fi show
Label: none uuid: 91f7e058-1142-4036-b1f7-4f64163dc8ae
Total devices 2 FS bytes used 3.84TiB
devid 1 size 5.45TiB used 3.86TiB path
/dev/mapper/rootvol_1
devid 2 size 5.45TiB used 3.86TiB path
/dev/mapper/rootvol_2
This is a liveUSB, but the machine that was running was also an
up-to-date
Arch.
On Wed, Jan 6, 2016 at 9:02 PM, Tom Hunt <tomdicksonhunt@xxxxxxxxx>
wrote:
I've got a two-disk RAID1 btrfs volume, which crashed for no apparent
reason and was corrupt on next boot. Relevant command runs and
outputs:
[root@archiso ~]# mount -osubvol=.,ro,recovery /dev/mapper/rootvol_1
mnt
mount: wrong fs type, bad option, bad superblock on
/dev/mapper/rootvol_1,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so.
[ 372.665800] Btrfs loaded
[ 372.666481] BTRFS: device fsid 91f7e058-1142-4036-b1f7-4f64163dc8ae
devid 1 transid 257371 /dev/dm-4
[ 389.339860] BTRFS: device fsid 91f7e058-1142-4036-b1f7-4f64163dc8ae
devid 2 transid 257371 /dev/dm-5
[ 781.695931] BTRFS info (device dm-5): enabling auto recovery
[ 781.695933] BTRFS info (device dm-5): disk space caching is enabled
[ 781.695934] BTRFS: has skinny extents
[ 781.776198] BTRFS: bdev /dev/mapper/rootvol_2 errs: wr 0, rd 0,
flush 0, corrupt 10, gen 426
[ 791.982552] BTRFS critical (device dm-5): corrupt leaf, bad key
order: block=6210228551680,root=1, slot=49
[ 791.982836] BTRFS critical (device dm-5): corrupt leaf, bad key
order: block=6210228551680,root=1, slot=49
[ 791.982862] BTRFS: Failed to read block groups: -5
[ 792.030513] BTRFS: open_ctree failed
[root@archiso ~]# btrfs restore -D /dev/mapper/rootvol_1
/root/tmp_data | tee data_mnt/tom/restore_list.txt
bad key ordering 49 50
Error searching -1
Error searching /root/tmp_data/home
This is a dry-run, no files are going to be restored
We have looped trying to restore files in
/exherbo/root/squashfs-root/usr/bin too many times to be making
progress, stopping
We have looped trying to restore files in
/exherbo/root/squashfs-root/usr/share/man/man1 too many times to be
making progress, stopping
We have looped trying to restore files in
/exherbo/root/squashfs-root/usr/share/man/man3 too many times to be
making progress, stopping
We have looped trying to restore files in
/exherbo/usr/x86_64-pc-linux-gnu/bin too many times to be making
progress, stopping
We have looped trying to restore files in
/exherbo/usr/x86_64-pc-linux-gnu/include/firefox/mozilla/dom too many
times to be making progress, stopping
We have looped trying to restore files in
/exherbo/usr/x86_64-pc-linux-gnu/include/firefox too many times to be
making progress, stopping
We have looped trying to restore files in
/exherbo/usr/x86_64-pc-linux-gnu/lib/python3.5/test/__pycache__ too
many times to be making progress, stopping
We have looped trying to restore files in
/exherbo/usr/x86_64-pc-linux-gnu/lib/python2.7/test too many times to
be making progress, stopping
We have looped trying to restore files in
/exherbo/usr/x86_64-pc-linux-gnu/lib/debug/usr/x86_64-pc-linux-gnu/bin
too many times to be making progress, stopping
We have looped trying to restore files in /exherbo/usr/share/man/man3
too many times to be making progress, stopping
We have looped trying to restore files in /exherbo/usr/share/man/man1
too many times to be making progress, stopping
We have looped trying to restore files in
/exherbo/usr/share/idl/firefox too many times to be making progress,
stopping
[root@archiso ~]# btrfs restore -v -l /dev/mapper/rootvol_1
bad key ordering 49 50
tree key (EXTENT_TREE ROOT_ITEM 0) 6210219163648 level 2
tree key (DEV_TREE ROOT_ITEM 0) 3792640000000 level 1
tree key (FS_TREE ROOT_ITEM 0) 3792595566592 level 0
tree key (CSUM_TREE ROOT_ITEM 0) 6210220048384 level 3
tree key (UUID_TREE ROOT_ITEM 0) 3792855105536 level 0
tree key (257 ROOT_ITEM 0) 3792551755776 level 2
tree key (258 ROOT_ITEM 0) 6210218557440 level 2
tree key (3785 ROOT_ITEM 0) 7588191682560 level 0
tree key (3786 ROOT_ITEM 0) 7588191633408 level 0
tree key (7565 ROOT_ITEM 0) 6210221588480 level 2
tree key (7566 ROOT_ITEM 0) 4055721377792 level 0
tree key (7567 ROOT_ITEM 101377) 3792849616896 level 2
tree key (DATA_RELOC_TREE ROOT_ITEM 0) 3792520544256 level 0
Any help available? I tried using btrfs-restore previously on a
different machine with only one of the disks plugged in, and it at
least showed some files, though the 'Error searching -1' still showed
up. (The /home subvolume is the only one I really care about;
everything else is nice-to-have.)
--
Tom Hunt
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