On 2018年03月13日 22:49, Dirk Gouders wrote: [snip] >> >> # btrfs inspect dump-tree -b 848986112 /dev/loop0p1 >> # btrfs inspect dump-tree -b 72089600 /dev/loop0p1 > > OK. > > (This mail gets a bit long but I don't want to snip probably important > information above.) >
Feel free to snip.
As the involved tree block is not shown anywhere.
So it's not any root node corrupted.
It may be some extent tree node corrupted in this case.
While to inspect it, we need some new functionality in btrfs inspect tree.
Before that, would you please try the following patch and to see if it
helps btrfs-restore to salvage any data?
------
diff --git a/cmds-restore.c b/cmds-restore.c
index ade35f0f880f..a90379a1c7e8 100644
--- a/cmds-restore.c
+++ b/cmds-restore.c
@@ -1282,7 +1282,7 @@ static struct btrfs_root *open_fs(const char *dev,
u64 root_location,
for (i = super_mirror; i < BTRFS_SUPER_MIRROR_MAX; i++) {
bytenr = btrfs_sb_offset(i);
fs_info = open_ctree_fs_info(dev, bytenr, root_location, 0,
- OPEN_CTREE_PARTIAL);
+ OPEN_CTREE_PARTIAL |
__OPEN_CTREE_RETURN_CHUNK_ROOT);
if (fs_info)
break;
fprintf(stderr, "Could not open root, trying backup
super\n");
------
Thanks,
Qu
> # btrfs inspect dump-tree -b 848986112 /dev/loop0p1
> btrfs-progs v4.15
> checksum verify failed on 363069440 found 296FB15A wanted F0AFE59D
> checksum verify failed on 363069440 found 296FB15A wanted F0AFE59D
> checksum verify failed on 363069440 found DC09290B wanted C630FD61
> checksum verify failed on 363069440 found 296FB15A wanted F0AFE59D
> bytenr mismatch, want=363069440, have=17552567724568668829
> leaf 848986112 items 71 free space 3562 generation 9858294 owner 1
> leaf 848986112 flags 0x1(WRITTEN) backref revision 1
> fs uuid a6459a90-ebe3-4c75-97f4-5496eadcc96f
> chunk uuid 6f325a21-ce3e-4994-a638-b88ea82d504c
> item 0 key (EXTENT_TREE ROOT_ITEM 0) itemoff 15844 itemsize 439
> generation 9858294 root_dirid 0 bytenr 848789504 level 2 refs
> 1
> lastsnap 0 byte_limit 0 bytes_used 16531456 flags 0x0(none)
> uuid 00000000-0000-0000-0000-000000000000
> drop key (0 UNKNOWN.0 0) level 0
> item 1 key (DEV_TREE ROOT_ITEM 0) itemoff 15405 itemsize 439
> generation 9855433 root_dirid 0 bytenr 30408704 level 0 refs 1
> lastsnap 0 byte_limit 0 bytes_used 16384 flags 0x0(none)
> uuid 00000000-0000-0000-0000-000000000000
> drop key (0 UNKNOWN.0 0) level 0
> item 2 key (FS_TREE INODE_REF 6) itemoff 15388 itemsize 17
> index 0 namelen 7 name: default
> item 3 key (FS_TREE ROOT_ITEM 0) itemoff 14949 itemsize 439
> generation 9858293 root_dirid 256 bytenr 850509824 level 2
> refs 1
> lastsnap 263791 byte_limit 0 bytes_used 213549056 flags
> 0x0(none)
> uuid 00000000-0000-0000-0000-000000000000
> ctransid 9858293 otransid 0 stransid 0 rtransid 0
> ctime 1519807754.115000000 (2018-02-28 09:49:14)
> drop key (0 UNKNOWN.0 0) level 0
> item 4 key (FS_TREE ROOT_REF 257) itemoff 14924 itemsize 25
> root ref key dirid 258 sequence 2 name i386-pc
> item 5 key (FS_TREE ROOT_REF 258) itemoff 14896 itemsize 28
> root ref key dirid 258 sequence 3 name x86_64-efi
> item 6 key (FS_TREE ROOT_REF 259) itemoff 14875 itemsize 21
> root ref key dirid 256 sequence 3 name opt
> item 7 key (FS_TREE ROOT_REF 260) itemoff 14854 itemsize 21
> root ref key dirid 256 sequence 4 name srv
> item 8 key (FS_TREE ROOT_REF 261) itemoff 14833 itemsize 21
> root ref key dirid 256 sequence 5 name tmp
> item 9 key (FS_TREE ROOT_REF 262) itemoff 14810 itemsize 23
> root ref key dirid 259 sequence 2 name local
> item 10 key (FS_TREE ROOT_REF 263) itemoff 14787 itemsize 23
> root ref key dirid 260 sequence 2 name crash
> item 11 key (FS_TREE ROOT_REF 264) itemoff 14762 itemsize 25
> root ref key dirid 261 sequence 2 name mailman
> item 12 key (FS_TREE ROOT_REF 265) itemoff 14739 itemsize 23
> root ref key dirid 261 sequence 3 name named
> item 13 key (FS_TREE ROOT_REF 266) itemoff 14716 itemsize 23
> root ref key dirid 261 sequence 4 name pgsql
> item 14 key (FS_TREE ROOT_REF 267) itemoff 14695 itemsize 21
> root ref key dirid 260 sequence 4 name log
> item 15 key (FS_TREE ROOT_REF 268) itemoff 14674 itemsize 21
> root ref key dirid 260 sequence 5 name opt
> item 16 key (FS_TREE ROOT_REF 269) itemoff 14651 itemsize 23
> root ref key dirid 260 sequence 6 name spool
> item 17 key (FS_TREE ROOT_REF 270) itemoff 14630 itemsize 21
> root ref key dirid 260 sequence 7 name tmp
> item 18 key (FS_TREE ROOT_REF 275) itemoff 14602 itemsize 28
> root ref key dirid 256 sequence 22 name .snapshots
> item 19 key (ROOT_TREE_DIR INODE_ITEM 0) itemoff 14442 itemsize 160
> generation 3 transid 0 size 0 nbytes 16384
> block group 0 mode 40755 links 1 uid 0 gid 0 rdev 0
> sequence 0 flags 0x0(none)
> atime 1446716178.0 (2015-11-05 10:36:18)
> ctime 1446716178.0 (2015-11-05 10:36:18)
> mtime 1446716178.0 (2015-11-05 10:36:18)
> otime 0.0 (1970-01-01 01:00:00)
> item 20 key (ROOT_TREE_DIR INODE_REF 6) itemoff 14430 itemsize 12
> index 0 namelen 2 name: ..
> item 21 key (ROOT_TREE_DIR DIR_ITEM 2378154706) itemoff 14393
> itemsize 37
> location key (FS_TREE ROOT_ITEM -1) type DIR
> transid 0 data_len 0 name_len 7
> name: default
> item 22 key (CSUM_TREE ROOT_ITEM 0) itemoff 13954 itemsize 439
> generation 9855436 root_dirid 0 bytenr 75300864 level 2 refs 1
> lastsnap 0 byte_limit 0 bytes_used 9895936 flags 0x0(none)
> uuid 00000000-0000-0000-0000-000000000000
> drop key (0 UNKNOWN.0 0) level 0
> item 23 key (UUID_TREE ROOT_ITEM 0) itemoff 13515 itemsize 439
> generation 263946 root_dirid 0 bytenr 212353024 level 0 refs 1
> lastsnap 0 byte_limit 0 bytes_used 16384 flags 0x0(none)
> uuid 450142b8-aff3-7043-946f-07f2297053de
> drop key (0 UNKNOWN.0 0) level 0
> item 24 key (256 INODE_ITEM 0) itemoff 13355 itemsize 160
> generation 0 transid 9858294 size 0 nbytes 61294247936
> block group 0 mode 100600 links 1 uid 0 gid 0 rdev 0
> sequence 27 flags
> 0x3915b(NODATASUM|NODATACOW|NOCOMPRESS|PREALLOC)
> atime 0.0 (1970-01-01 01:00:00)
> ctime 1474991460.474000000 (2016-09-27 17:51:00)
> mtime 0.0 (1970-01-01 01:00:00)
> otime 0.0 (1970-01-01 01:00:00)
> item 25 key (257 ROOT_ITEM 0) itemoff 12916 itemsize 439
> generation 9855434 root_dirid 256 bytenr 48955392 level 1
> refs 1
> lastsnap 0 byte_limit 0 bytes_used 524288 flags 0x0(none)
> uuid 9eedce31-5bef-bf4a-a25b-bdf0b0801397
> ctransid 9855434 otransid 6 stransid 0 rtransid 0
> ctime 1519632969.856000000 (2018-02-26 09:16:09)
> otime 1446716178.880000000 (2015-11-05 10:36:18)
> drop key (0 UNKNOWN.0 0) level 0
> item 26 key (257 ROOT_BACKREF 5) itemoff 12891 itemsize 25
> root backref key dirid 258 sequence 2 name i386-pc
> item 27 key (258 ROOT_ITEM 0) itemoff 12452 itemsize 439
> generation 9855434 root_dirid 256 bytenr 48660480 level 0
> refs 1
> lastsnap 0 byte_limit 0 bytes_used 16384 flags 0x0(none)
> uuid 2419d0ab-9fa7-414d-a0d4-9df016ea2dfb
> ctransid 9855434 otransid 7 stransid 0 rtransid 0
> ctime 1519632969.789000000 (2018-02-26 09:16:09)
> otime 1446716178.932000000 (2015-11-05 10:36:18)
> drop key (0 UNKNOWN.0 0) level 0
> item 28 key (258 ROOT_BACKREF 5) itemoff 12424 itemsize 28
> root backref key dirid 258 sequence 3 name x86_64-efi
> item 29 key (259 ROOT_ITEM 0) itemoff 11985 itemsize 439
> generation 9855434 root_dirid 256 bytenr 47218688 level 0
> refs 1
> lastsnap 0 byte_limit 0 bytes_used 16384 flags 0x0(none)
> uuid ee509c20-1869-4a40-88bf-55bb7fa9f155
> ctransid 9855434 otransid 8 stransid 0 rtransid 0
> ctime 1519632969.589000000 (2018-02-26 09:16:09)
> otime 1446716178.988000000 (2015-11-05 10:36:18)
> drop key (0 UNKNOWN.0 0) level 0
> item 30 key (259 ROOT_BACKREF 5) itemoff 11964 itemsize 21
> root backref key dirid 256 sequence 3 name opt
> item 31 key (260 ROOT_ITEM 0) itemoff 11525 itemsize 439
> generation 9855434 root_dirid 256 bytenr 47071232 level 1
> refs 1
> lastsnap 0 byte_limit 0 bytes_used 2244608 flags 0x0(none)
> uuid 34b5a192-fba4-d14f-9fc7-86f4826479c7
> ctransid 9855434 otransid 9 stransid 0 rtransid 0
> ctime 1519632969.481000000 (2018-02-26 09:16:09)
> otime 1446716179.40000000 (2015-11-05 10:36:19)
> drop key (0 UNKNOWN.0 0) level 0
> item 32 key (260 ROOT_BACKREF 5) itemoff 11504 itemsize 21
> root backref key dirid 256 sequence 4 name srv
> item 33 key (261 ROOT_ITEM 0) itemoff 11065 itemsize 439
> generation 9858293 root_dirid 256 bytenr 851296256 level 1
> refs 1
> lastsnap 0 byte_limit 0 bytes_used 49152 flags 0x0(none)
> uuid 0b5abe51-1fdf-924f-9606-6c784177e94f
> ctransid 9858293 otransid 10 stransid 0 rtransid 0
> ctime 1519807748.323000000 (2018-02-28 09:49:08)
> otime 1446716179.92000000 (2015-11-05 10:36:19)
> drop key (0 UNKNOWN.0 0) level 0
> item 34 key (261 ROOT_BACKREF 5) itemoff 11044 itemsize 21
> root backref key dirid 256 sequence 5 name tmp
> item 35 key (262 ROOT_ITEM 0) itemoff 10605 itemsize 439
> generation 9855434 root_dirid 256 bytenr 46940160 level 0
> refs 1
> lastsnap 0 byte_limit 0 bytes_used 16384 flags 0x0(none)
> uuid 98b4c35b-18fb-7947-8471-d651ca5f5e0f
> ctransid 9855434 otransid 11 stransid 0 rtransid 0
> ctime 1519632969.228000000 (2018-02-26 09:16:09)
> otime 1446716179.140000000 (2015-11-05 10:36:19)
> drop key (0 UNKNOWN.0 0) level 0
> item 36 key (262 ROOT_BACKREF 5) itemoff 10582 itemsize 23
> root backref key dirid 259 sequence 2 name local
> item 37 key (263 ROOT_ITEM 0) itemoff 10143 itemsize 439
> generation 9855434 root_dirid 256 bytenr 46891008 level 0
> refs 1
> lastsnap 0 byte_limit 0 bytes_used 16384 flags 0x0(none)
> uuid 5645bb42-8c99-0d47-8129-a2ca05f51fe2
> ctransid 9855434 otransid 12 stransid 0 rtransid 0
> ctime 1519632969.226000000 (2018-02-26 09:16:09)
> otime 1446716179.196000000 (2015-11-05 10:36:19)
> drop key (0 UNKNOWN.0 0) level 0
> item 38 key (263 ROOT_BACKREF 5) itemoff 10120 itemsize 23
> root backref key dirid 260 sequence 2 name crash
> item 39 key (264 ROOT_ITEM 0) itemoff 9681 itemsize 439
> generation 9855434 root_dirid 256 bytenr 46776320 level 0
> refs 1
> lastsnap 0 byte_limit 0 bytes_used 16384 flags 0x0(none)
> uuid ffd3602c-e9c5-4a45-adb7-91ffc602ddfe
> ctransid 9855434 otransid 13 stransid 0 rtransid 0
> ctime 1519632969.207000000 (2018-02-26 09:16:09)
> otime 1446716179.240000000 (2015-11-05 10:36:19)
> drop key (0 UNKNOWN.0 0) level 0
> item 40 key (264 ROOT_BACKREF 5) itemoff 9656 itemsize 25
> root backref key dirid 261 sequence 2 name mailman
> item 41 key (265 ROOT_ITEM 0) itemoff 9217 itemsize 439
> generation 9855434 root_dirid 256 bytenr 46645248 level 0
> refs 1
> lastsnap 0 byte_limit 0 bytes_used 16384 flags 0x0(none)
> uuid 921707e6-ca55-c64b-ae92-151f72877eb7
> ctransid 9855434 otransid 14 stransid 0 rtransid 0
> ctime 1519632969.43000000 (2018-02-26 09:16:09)
> otime 1446716179.292000000 (2015-11-05 10:36:19)
> drop key (0 UNKNOWN.0 0) level 0
> item 42 key (265 ROOT_BACKREF 5) itemoff 9194 itemsize 23
> root backref key dirid 261 sequence 3 name named
> item 43 key (266 ROOT_ITEM 0) itemoff 8755 itemsize 439
> generation 9855434 root_dirid 256 bytenr 46497792 level 0
> refs 1
> lastsnap 0 byte_limit 0 bytes_used 16384 flags 0x0(none)
> uuid c5088517-54c8-0e48-b117-d83eb265d310
> ctransid 9855434 otransid 15 stransid 0 rtransid 0
> ctime 1519632968.681000000 (2018-02-26 09:16:08)
> otime 1446716179.348000000 (2015-11-05 10:36:19)
> drop key (0 UNKNOWN.0 0) level 0
> item 44 key (266 ROOT_BACKREF 5) itemoff 8732 itemsize 23
> root backref key dirid 261 sequence 4 name pgsql
> item 45 key (267 ROOT_ITEM 0) itemoff 8293 itemsize 439
> generation 9858293 root_dirid 256 bytenr 850477056 level 1
> refs 1
> lastsnap 0 byte_limit 0 bytes_used 720896 flags 0x0(none)
> uuid 4bdce6a2-7c29-e34f-9093-069814030702
> ctransid 9858293 otransid 16 stransid 0 rtransid 0
> ctime 1519807753.828000000 (2018-02-28 09:49:13)
> otime 1446716179.392000000 (2015-11-05 10:36:19)
> drop key (0 UNKNOWN.0 0) level 0
> item 46 key (267 ROOT_BACKREF 5) itemoff 8272 itemsize 21
> root backref key dirid 260 sequence 4 name log
> item 47 key (268 ROOT_ITEM 0) itemoff 7833 itemsize 439
> generation 9855434 root_dirid 256 bytenr 46202880 level 0
> refs 1
> lastsnap 0 byte_limit 0 bytes_used 16384 flags 0x0(none)
> uuid 0ccd97bc-ec14-8741-b9a4-4759a53da090
> ctransid 9855434 otransid 17 stransid 0 rtransid 0
> ctime 1519632968.203000000 (2018-02-26 09:16:08)
> otime 1446716179.436000000 (2015-11-05 10:36:19)
> drop key (0 UNKNOWN.0 0) level 0
> item 48 key (268 ROOT_BACKREF 5) itemoff 7812 itemsize 21
> root backref key dirid 260 sequence 5 name opt
> item 49 key (269 ROOT_ITEM 0) itemoff 7373 itemsize 439
> generation 9858288 root_dirid 256 bytenr 847282176 level 1
> refs 1
> lastsnap 0 byte_limit 0 bytes_used 49152 flags 0x0(none)
> uuid c9ae2b48-c019-4743-acdf-bd2920044351
> ctransid 9858288 otransid 18 stransid 0 rtransid 0
> ctime 1519807501.838000000 (2018-02-28 09:45:01)
> otime 1446716179.472000000 (2015-11-05 10:36:19)
> drop key (0 UNKNOWN.0 0) level 0
> item 50 key (269 ROOT_BACKREF 5) itemoff 7350 itemsize 23
> root backref key dirid 260 sequence 6 name spool
> item 51 key (270 ROOT_ITEM 0) itemoff 6911 itemsize 439
> generation 9858274 root_dirid 256 bytenr 844120064 level 2
> refs 1
> lastsnap 0 byte_limit 0 bytes_used 24772608 flags 0x0(none)
> uuid edf076de-cdfe-4147-80a5-c10b801b8bd1
> ctransid 9858274 otransid 19 stransid 0 rtransid 0
> ctime 1519806635.707000000 (2018-02-28 09:30:35)
> otime 1446716179.516000000 (2015-11-05 10:36:19)
> drop key (0 UNKNOWN.0 0) level 0
> item 52 key (270 ROOT_BACKREF 5) itemoff 6890 itemsize 21
> root backref key dirid 260 sequence 7 name tmp
> item 53 key (271 INODE_ITEM 0) itemoff 6730 itemsize 160
> generation 0 transid 9855436 size 0 nbytes 27693678592
> block group 0 mode 100600 links 1 uid 0 gid 0 rdev 0
> sequence 27 flags
> 0x19cab(NODATASUM|NODATACOW|NOCOMPRESS|PREALLOC)
> atime 0.0 (1970-01-01 01:00:00)
> ctime 1474990771.256000000 (2016-09-27 17:39:31)
> mtime 0.0 (1970-01-01 01:00:00)
> otime 0.0 (1970-01-01 01:00:00)
> item 54 key (272 INODE_ITEM 0) itemoff 6570 itemsize 160
> generation 0 transid 273541 size 0 nbytes 7124811776
> block group 0 mode 100600 links 1 uid 0 gid 0 rdev 0
> sequence 27 flags
> 0x6a2b(NODATASUM|NODATACOW|NOCOMPRESS|PREALLOC)
> atime 0.0 (1970-01-01 01:00:00)
> ctime 1459940562.293000000 (2016-04-06 13:02:42)
> mtime 0.0 (1970-01-01 01:00:00)
> otime 0.0 (1970-01-01 01:00:00)
> item 55 key (273 INODE_ITEM 0) itemoff 6410 itemsize 160
> generation 0 transid 9728190 size 0 nbytes 8831369216
> block group 0 mode 100600 links 1 uid 0 gid 0 rdev 0
> sequence 27 flags
> 0x8399(NODATASUM|NODATACOW|NOCOMPRESS|PREALLOC)
> atime 0.0 (1970-01-01 01:00:00)
> ctime 1474991460.474000000 (2016-09-27 17:51:00)
> mtime 0.0 (1970-01-01 01:00:00)
> otime 0.0 (1970-01-01 01:00:00)
> item 56 key (274 INODE_ITEM 0) itemoff 6250 itemsize 160
> generation 0 transid 9855436 size 0 nbytes 44692144128
> block group 0 mode 100600 links 1 uid 0 gid 0 rdev 0
> sequence 27 flags
> 0x299f7(NODATASUM|NODATACOW|NOCOMPRESS|PREALLOC)
> atime 0.0 (1970-01-01 01:00:00)
> ctime 1474990707.660000000 (2016-09-27 17:38:27)
> mtime 0.0 (1970-01-01 01:00:00)
> otime 0.0 (1970-01-01 01:00:00)
> item 57 key (275 ROOT_ITEM 0) itemoff 5811 itemsize 439
> generation 9858273 root_dirid 256 bytenr 842039296 level 1
> refs 1
> lastsnap 0 byte_limit 0 bytes_used 49152 flags 0x0(none)
> uuid bb3970e5-bb33-8b4c-a15e-634d3d943ce4
> ctransid 9858273 otransid 39 stransid 0 rtransid 0
> ctime 1519806602.240000000 (2018-02-28 09:30:02)
> otime 1446716730.796000000 (2015-11-05 10:45:30)
> drop key (0 UNKNOWN.0 0) level 0
> item 58 key (275 ROOT_BACKREF 5) itemoff 5783 itemsize 28
> root backref key dirid 256 sequence 22 name .snapshots
> item 59 key (275 ROOT_REF 346) itemoff 5757 itemsize 26
> root ref key dirid 634 sequence 2 name snapshot
> item 60 key (275 ROOT_REF 349) itemoff 5731 itemsize 26
> root ref key dirid 640 sequence 2 name snapshot
> item 61 key (275 ROOT_REF 374) itemoff 5705 itemsize 26
> root ref key dirid 775 sequence 2 name snapshot
> item 62 key (275 ROOT_REF 375) itemoff 5679 itemsize 26
> root ref key dirid 779 sequence 2 name snapshot
> item 63 key (275 ROOT_REF 376) itemoff 5653 itemsize 26
> root ref key dirid 784 sequence 2 name snapshot
> item 64 key (275 ROOT_REF 377) itemoff 5627 itemsize 26
> root ref key dirid 788 sequence 2 name snapshot
> item 65 key (275 ROOT_REF 378) itemoff 5601 itemsize 26
> root ref key dirid 793 sequence 2 name snapshot
> item 66 key (275 ROOT_REF 379) itemoff 5575 itemsize 26
> root ref key dirid 797 sequence 2 name snapshot
> item 67 key (275 ROOT_REF 380) itemoff 5549 itemsize 26
> root ref key dirid 803 sequence 2 name snapshot
> item 68 key (275 ROOT_REF 381) itemoff 5523 itemsize 26
> root ref key dirid 808 sequence 2 name snapshot
> item 69 key (275 ROOT_REF 382) itemoff 5497 itemsize 26
> root ref key dirid 816 sequence 2 name snapshot
> item 70 key (276 INODE_ITEM 0) itemoff 5337 itemsize 160
> generation 0 transid 9691852 size 0 nbytes 1272446976
> block group 0 mode 100600 links 1 uid 0 gid 0 rdev 0
> sequence 27 flags
> 0x12f6(NODATASUM|NODATACOW|NOCOMPRESS|PREALLOC)
> atime 0.0 (1970-01-01 01:00:00)
> ctime 1474991095.943000000 (2016-09-27 17:44:55)
> mtime 0.0 (1970-01-01 01:00:00)
> otime 0.0 (1970-01-01 01:00:00)
>
> # btrfs inspect dump-tree -b 72089600 /dev/loop0p1
> btrfs-progs v4.15
> checksum verify failed on 363069440 found 296FB15A wanted F0AFE59D
> checksum verify failed on 363069440 found 296FB15A wanted F0AFE59D
> checksum verify failed on 363069440 found DC09290B wanted C630FD61
> checksum verify failed on 363069440 found 296FB15A wanted F0AFE59D
> bytenr mismatch, want=363069440, have=17552567724568668829
> leaf 72089600 items 35 free space 9005 generation 9728190 owner 1
> leaf 72089600 flags 0x1(WRITTEN) backref revision 1
> fs uuid a6459a90-ebe3-4c75-97f4-5496eadcc96f
> chunk uuid 6f325a21-ce3e-4994-a638-b88ea82d504c
> item 0 key (346 ROOT_ITEM 18671) itemoff 15844 itemsize 439
> generation 18672 root_dirid 256 bytenr 1066942464 level 2
> refs 1
> lastsnap 18671 byte_limit 0 bytes_used 194658304 flags
> 0x1(RDONLY)
> uuid cb7deeb6-0cc1-f84a-9327-727fd2744eed
> ctransid 18671 otransid 18671 stransid 0 rtransid 0
> ctime 1447754576.356000000 (2015-11-17 11:02:56)
> otime 1447754576.972000000 (2015-11-17 11:02:56)
> drop key (0 UNKNOWN.0 0) level 0
> item 1 key (346 ROOT_BACKREF 275) itemoff 15818 itemsize 26
> root backref key dirid 634 sequence 2 name snapshot
> item 2 key (347 INODE_ITEM 0) itemoff 15658 itemsize 160
> generation 0 transid 9691911 size 0 nbytes 1610350592
> block group 0 mode 100600 links 1 uid 0 gid 0 rdev 0
> sequence 27 flags
> 0x17ff(NODATASUM|NODATACOW|NOCOMPRESS|PREALLOC)
> atime 0.0 (1970-01-01 01:00:00)
> ctime 1474990707.660000000 (2016-09-27 17:38:27)
> mtime 0.0 (1970-01-01 01:00:00)
> otime 0.0 (1970-01-01 01:00:00)
> item 3 key (348 INODE_ITEM 0) itemoff 15498 itemsize 160
> generation 0 transid 297737 size 0 nbytes 2159542272
> block group 0 mode 100600 links 1 uid 0 gid 0 rdev 0
> sequence 27 flags
> 0x202e(NODATASUM|NODATACOW|NOCOMPRESS|PREALLOC)
> atime 0.0 (1970-01-01 01:00:00)
> ctime 1474991460.474000000 (2016-09-27 17:51:00)
> mtime 0.0 (1970-01-01 01:00:00)
> otime 0.0 (1970-01-01 01:00:00)
> item 4 key (349 ROOT_ITEM 18769) itemoff 15059 itemsize 439
> generation 18770 root_dirid 256 bytenr 964427776 level 2 refs
> 1
> lastsnap 18769 byte_limit 0 bytes_used 205062144 flags
> 0x1(RDONLY)
> uuid 979db73c-6233-3d49-adfe-41df7945174a
> ctransid 18769 otransid 18769 stransid 0 rtransid 0
> ctime 1447757948.615000000 (2015-11-17 11:59:08)
> otime 1447757948.651000000 (2015-11-17 11:59:08)
> drop key (0 UNKNOWN.0 0) level 0
> item 5 key (349 ROOT_BACKREF 275) itemoff 15033 itemsize 26
> root backref key dirid 640 sequence 2 name snapshot
> item 6 key (351 INODE_ITEM 0) itemoff 14873 itemsize 160
> generation 0 transid 9728190 size 0 nbytes 1013121024
> block group 0 mode 100600 links 1 uid 0 gid 0 rdev 0
> sequence 27 flags
> 0x1421(NODATASUM|NODATACOW|NOCOMPRESS|PREALLOC)
> atime 0.0 (1970-01-01 01:00:00)
> ctime 1474991195.376000000 (2016-09-27 17:46:35)
> mtime 0.0 (1970-01-01 01:00:00)
> otime 0.0 (1970-01-01 01:00:00)
> item 7 key (374 ROOT_ITEM 29547) itemoff 14434 itemsize 439
> generation 29547 root_dirid 256 bytenr 870629376 level 2 refs
> 1
> lastsnap 29547 byte_limit 0 bytes_used 213336064 flags
> 0x1(RDONLY)
> uuid 54ec24e0-01e5-b143-ad02-e79cb0109047
> ctransid 29547 otransid 29547 stransid 0 rtransid 0
> ctime 1448377634.207000000 (2015-11-24 16:07:14)
> otime 1448377634.265000000 (2015-11-24 16:07:14)
> drop key (0 UNKNOWN.0 0) level 0
> item 8 key (374 ROOT_BACKREF 275) itemoff 14408 itemsize 26
> root backref key dirid 775 sequence 2 name snapshot
> item 9 key (375 ROOT_ITEM 29550) itemoff 13969 itemsize 439
> generation 29550 root_dirid 256 bytenr 882671616 level 2 refs
> 1
> lastsnap 29550 byte_limit 0 bytes_used 213352448 flags
> 0x1(RDONLY)
> uuid 0266a5f7-1043-af44-b81e-92a879169e1e
> ctransid 29550 otransid 29550 stransid 0 rtransid 0
> ctime 1448377708.259000000 (2015-11-24 16:08:28)
> otime 1448377708.785000000 (2015-11-24 16:08:28)
> drop key (0 UNKNOWN.0 0) level 0
> item 10 key (375 ROOT_BACKREF 275) itemoff 13943 itemsize 26
> root backref key dirid 779 sequence 2 name snapshot
> item 11 key (376 ROOT_ITEM 30944) itemoff 13504 itemsize 439
> generation 30944 root_dirid 256 bytenr 470810624 level 2 refs
> 1
> lastsnap 30944 byte_limit 0 bytes_used 213352448 flags
> 0x1(RDONLY)
> uuid 8e1c7595-8eed-8e43-b267-a54f89b586dc
> ctransid 30892 otransid 30944 stransid 0 rtransid 0
> ctime 1448456402.3000000 (2015-11-25 14:00:02)
> otime 1448459396.15000000 (2015-11-25 14:49:56)
> drop key (0 UNKNOWN.0 0) level 0
> item 12 key (376 ROOT_BACKREF 275) itemoff 13478 itemsize 26
> root backref key dirid 784 sequence 2 name snapshot
> item 13 key (377 ROOT_ITEM 30960) itemoff 13039 itemsize 439
> generation 30960 root_dirid 256 bytenr 491372544 level 2 refs
> 1
> lastsnap 30960 byte_limit 0 bytes_used 213352448 flags
> 0x1(RDONLY)
> uuid 9a515eda-2a4c-bd47-894b-6ddf8e714f55
> ctransid 30960 otransid 30960 stransid 0 rtransid 0
> ctime 1448459878.906000000 (2015-11-25 14:57:58)
> otime 1448459881.717000000 (2015-11-25 14:58:01)
> drop key (0 UNKNOWN.0 0) level 0
> item 14 key (377 ROOT_BACKREF 275) itemoff 13013 itemsize 26
> root backref key dirid 788 sequence 2 name snapshot
> item 15 key (378 ROOT_ITEM 227145) itemoff 12574 itemsize 439
> generation 227145 root_dirid 256 bytenr 874496000 level 2
> refs 1
> lastsnap 227145 byte_limit 0 bytes_used 213401600 flags
> 0x1(RDONLY)
> uuid 471c2b44-6b45-f744-8612-654effab326c
> ctransid 227145 otransid 227145 stransid 0 rtransid 0
> ctime 1459930839.575000000 (2016-04-06 10:20:39)
> otime 1459930839.671000000 (2016-04-06 10:20:39)
> drop key (0 UNKNOWN.0 0) level 0
> item 16 key (378 ROOT_BACKREF 275) itemoff 12548 itemsize 26
> root backref key dirid 793 sequence 2 name snapshot
> item 17 key (379 ROOT_ITEM 227148) itemoff 12109 itemsize 439
> generation 227148 root_dirid 256 bytenr 874561536 level 2
> refs 1
> lastsnap 227148 byte_limit 0 bytes_used 213401600 flags
> 0x1(RDONLY)
> uuid 356acc7b-459e-f644-a4b9-ab1fa30736a0
> ctransid 227148 otransid 227148 stransid 0 rtransid 0
> ctime 1459930925.758000000 (2016-04-06 10:22:05)
> otime 1459930925.763000000 (2016-04-06 10:22:05)
> drop key (0 UNKNOWN.0 0) level 0
> item 18 key (379 ROOT_BACKREF 275) itemoff 12083 itemsize 26
> root backref key dirid 797 sequence 2 name snapshot
> item 19 key (380 ROOT_ITEM 227149) itemoff 11644 itemsize 439
> generation 227150 root_dirid 256 bytenr 886030336 level 2
> refs 1
> lastsnap 227149 byte_limit 0 bytes_used 213450752 flags
> 0x1(RDONLY)
> uuid 82cfac93-56f1-104b-87e7-b61a6c759404
> ctransid 227149 otransid 227149 stransid 0 rtransid 0
> ctime 1459930939.604000000 (2016-04-06 10:22:19)
> otime 1459930939.772000000 (2016-04-06 10:22:19)
> drop key (0 UNKNOWN.0 0) level 0
> item 20 key (380 ROOT_BACKREF 275) itemoff 11618 itemsize 26
> root backref key dirid 803 sequence 2 name snapshot
> item 21 key (381 ROOT_ITEM 227173) itemoff 11179 itemsize 439
> generation 227173 root_dirid 256 bytenr 992591872 level 2
> refs 1
> lastsnap 227173 byte_limit 0 bytes_used 213450752 flags
> 0x1(RDONLY)
> uuid 74988136-529e-0d4c-aade-25560036171e
> ctransid 227173 otransid 227173 stransid 0 rtransid 0
> ctime 1459931730.628000000 (2016-04-06 10:35:30)
> otime 1459931731.184000000 (2016-04-06 10:35:31)
> drop key (0 UNKNOWN.0 0) level 0
> item 22 key (381 ROOT_BACKREF 275) itemoff 11153 itemsize 26
> root backref key dirid 808 sequence 2 name snapshot
> item 23 key (382 ROOT_ITEM 253660) itemoff 10714 itemsize 439
> generation 253660 root_dirid 256 bytenr 947126272 level 2
> refs 1
> lastsnap 253660 byte_limit 0 bytes_used 213745664 flags
> 0x1(RDONLY)
> uuid 7b1631e5-fe02-5044-ab0d-23405434db50
> ctransid 253660 otransid 253660 stransid 0 rtransid 0
> ctime 1459940654.929000000 (2016-04-06 13:04:14)
> otime 1459940654.932000000 (2016-04-06 13:04:14)
> drop key (0 UNKNOWN.0 0) level 0
> item 24 key (382 ROOT_BACKREF 275) itemoff 10688 itemsize 26
> root backref key dirid 816 sequence 2 name snapshot
> item 25 key (FREE_SPACE UNTYPED 29360128) itemoff 10647 itemsize 41
> location key (256 INODE_ITEM 0)
> cache generation 269825 entries 21 bitmaps 8
> item 26 key (FREE_SPACE UNTYPED 1103101952) itemoff 10606 itemsize 41
> location key (271 INODE_ITEM 0)
> cache generation 269716 entries 4 bitmaps 0
> item 27 key (FREE_SPACE UNTYPED 2176843776) itemoff 10565 itemsize 41
> location key (272 INODE_ITEM 0)
> cache generation 253653 entries 2 bitmaps 0
> item 28 key (FREE_SPACE UNTYPED 3250585600) itemoff 10524 itemsize 41
> location key (273 INODE_ITEM 0)
> cache generation 269825 entries 3 bitmaps 0
> item 29 key (FREE_SPACE UNTYPED 4324327424) itemoff 10483 itemsize 41
> location key (274 INODE_ITEM 0)
> cache generation 269714 entries 4 bitmaps 0
> item 30 key (FREE_SPACE UNTYPED 5398069248) itemoff 10442 itemsize 41
> location key (276 INODE_ITEM 0)
> cache generation 269775 entries 6 bitmaps 0
> item 31 key (FREE_SPACE UNTYPED 6471811072) itemoff 10401 itemsize 41
> location key (347 INODE_ITEM 0)
> cache generation 269714 entries 12 bitmaps 0
> item 32 key (FREE_SPACE UNTYPED 7545552896) itemoff 10360 itemsize 41
> location key (348 INODE_ITEM 0)
> cache generation 269825 entries 31 bitmaps 0
> item 33 key (FREE_SPACE UNTYPED 8619294720) itemoff 10319 itemsize 41
> location key (351 INODE_ITEM 0)
> cache generation 269820 entries 34 bitmaps 0
> item 34 key (DATA_RELOC_TREE ROOT_ITEM 0) itemoff 9880 itemsize 439
> generation 4 root_dirid 256 bytenr 29442048 level 0 refs 1
> lastsnap 0 byte_limit 0 bytes_used 16384 flags 0x0(none)
> uuid 00000000-0000-0000-0000-000000000000
> drop key (0 UNKNOWN.0 0) level 0
>
> Thanks,
>
> Dirk
> --
> To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in
> the body of a message to majord...@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
>
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