Re: btrfs check: backref lost, mismatch with its hash -- can't repair

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On 2018年01月25日 04:41, ^m'e wrote:
> And here it is:
> 
> --------------------------------------------
> # ./btrfs-debug-tree.static -t 1385 /dev/sdb3 | grep -C 20 30039322 |

In fact, that's only dump tree 1385.
Now we also need the dump of tree 257.

Thanks,
Qu

> tee /mnt/custom/rescue/btrfs-recovery/btrfs-debug.30039322.2.log
>         location key (30037910 INODE_ITEM 0) type DIR
>         transid 136248 data_len 0 name_len 3
>         name: bam
>     item 52 key (30037720 DIR_ITEM 508462201) itemoff 14104 itemsize 40
>         location key (30039832 INODE_ITEM 0) type DIR
>         transid 136248 data_len 0 name_len 10
>         name: suse-build
>     item 53 key (30037720 DIR_ITEM 541125215) itemoff 14070 itemsize 34
>         location key (30038354 INODE_ITEM 0) type DIR
>         transid 136248 data_len 0 name_len 4
>         name: cram
>     item 54 key (30037720 DIR_ITEM 543235706) itemoff 14035 itemsize 35
>         location key (30039133 INODE_ITEM 0) type DIR
>         transid 136248 data_len 0 name_len 5
>         name: lsuio
>     item 55 key (30037720 DIR_ITEM 586823170) itemoff 14000 itemsize 35
>         location key (30038846 INODE_ITEM 0) type DIR
>         transid 136248 data_len 0 name_len 5
>         name: geany
>     item 56 key (30037720 DIR_ITEM 603413733) itemoff 13938 itemsize 62
>         location key (30039322 INODE_ITEM 0) type DIR
>         transid 136248 data_len 0 name_len 32
>         name: obs-service-download_src_package
>     item 57 key (30037720 DIR_ITEM 623694194) itemoff 13903 itemsize 35
>         location key (30038092 INODE_ITEM 0) type DIR
>         transid 136248 data_len 0 name_len 5
>         name: byacc
>     item 58 key (30037720 DIR_ITEM 637448305) itemoff 13868 itemsize 35
>         location key (43374420 INODE_ITEM 0) type DIR
>         transid 200308 data_len 0 name_len 5
>         name: vpuml
>     item 59 key (30037720 DIR_ITEM 660989717) itemoff 13828 itemsize 40
>         location key (30038283 INODE_ITEM 0) type DIR
>         transid 136248 data_len 0 name_len 10
>         name: comparator
>     item 60 key (30037720 DIR_ITEM 666000672) itemoff 13782 itemsize 46
>         location key (30039257 INODE_ITEM 0) type DIR
>         transid 136248 data_len 0 name_len 16
>         name: molecule-plugins
>     item 61 key (30037720 DIR_ITEM 679217690) itemoff 13749 itemsize 33
>         location key (36281336 INODE_ITEM 0) type DIR
> --
>         location key (30039292 INODE_ITEM 0) type DIR
>         transid 136248 data_len 0 name_len 15
>         name: nvidia-cuda-sdk
>     item 73 key (30037720 DIR_INDEX 238) itemoff 13448 itemsize 49
>         location key (30039299 INODE_ITEM 0) type DIR
>         transid 136248 data_len 0 name_len 19
>         name: nvidia-cuda-toolkit
>     item 74 key (30037720 DIR_INDEX 239) itemoff 13411 itemsize 37
>         location key (30039309 INODE_ITEM 0) type DIR
>         transid 136248 data_len 0 name_len 7
>         name: objconv
>     item 75 key (30037720 DIR_INDEX 240) itemoff 13361 itemsize 50
>         location key (30039314 INODE_ITEM 0) type DIR
>         transid 136248 data_len 0 name_len 20
>         name: obs-service-cpanspec
>     item 76 key (30037720 DIR_INDEX 241) itemoff 13305 itemsize 56
>         location key (30039318 INODE_ITEM 0) type DIR
>         transid 136248 data_len 0 name_len 26
>         name: obs-service-download_files
>     item 77 key (30037720 DIR_INDEX 242) itemoff 13243 itemsize 62
>         location key (30039322 INODE_ITEM 0) type DIR
>         transid 136248 data_len 0 name_len 32
>         name: obs-service-download_src_package
>     item 78 key (30037720 DIR_INDEX 243) itemoff 13189 itemsize 54
>         location key (30039326 INODE_ITEM 0) type DIR
>         transid 136248 data_len 0 name_len 24
>         name: obs-service-download_url
>     item 79 key (30037720 DIR_INDEX 244) itemoff 13135 itemsize 54
>         location key (30039330 INODE_ITEM 0) type DIR
>         transid 136248 data_len 0 name_len 24
>         name: obs-service-extract_file
>     item 80 key (30037720 DIR_INDEX 245) itemoff 13077 itemsize 58
>         location key (30039334 INODE_ITEM 0) type DIR
>         transid 136248 data_len 0 name_len 28
>         name: obs-service-format_spec_file
>     item 81 key (30037720 DIR_INDEX 246) itemoff 13007 itemsize 70
>         location key (30039338 INODE_ITEM 0) type DIR
>         transid 136248 data_len 0 name_len 40
>         name: obs-service-generator_driver_update_disk
>     item 82 key (30037720 DIR_INDEX 247) itemoff 12953 itemsize 54
>         location key (30039342 INODE_ITEM 0) type DIR
> --
>         mtime 1504685599.188061317 (2017-09-06 08:13:19)
>         otime 1504685599.188061317 (2017-09-06 08:13:19)
>     item 73 key (30039320 INODE_REF 30039318) itemoff 5278 itemsize 22
>         index 3 namelen 12 name: metadata.xml
>     item 74 key (30039320 EXTENT_DATA 0) itemoff 4809 itemsize 469
>         generation 136248 type 0 (inline)
>         inline extent data size 448 ram_bytes 448 compression 0 (none)
>     item 75 key (30039321 INODE_ITEM 0) itemoff 4649 itemsize 160
>         generation 136248 transid 202216 size 213 nbytes 213
>         block group 0 mode 100644 links 1 uid 250 gid 250 rdev 0
>         sequence 0 flags 0xb(none)
>         atime 1504685599.188061317 (2017-09-06 08:13:19)
>         ctime 1512818139.540278499 (2017-12-09 11:15:39)
>         mtime 1504685599.188061317 (2017-09-06 08:13:19)
>         otime 1504685599.188061317 (2017-09-06 08:13:19)
>     item 76 key (30039321 INODE_REF 30039318) itemoff 4597 itemsize 52
>         index 4 namelen 42 name: obs-service-download_files-20130716.ebuild
>     item 77 key (30039321 EXTENT_DATA 0) itemoff 4363 itemsize 234
>         generation 136248 type 0 (inline)
>         inline extent data size 213 ram_bytes 213 compression 0 (none)
>     item 78 key (30039322 INODE_ITEM 0) itemoff 4203 itemsize 160
>         generation 136248 transid 229515 size 152 nbytes 0
>         block group 0 mode 40755 links 1 uid 250 gid 250 rdev 0
>         sequence 0 flags 0xf(none)
>         atime 1504685599.188061317 (2017-09-06 08:13:19)
>         ctime 1516557882.551679697 (2018-01-21 18:04:42)
>         mtime 1516557882.551679697 (2018-01-21 18:04:42)
>         otime 1504685599.188061317 (2017-09-06 08:13:19)
>     item 79 key (30039322 INODE_REF 30037720) itemoff 4161 itemsize 42
>         index 242 namelen 32 name: obs-service-download_src_package
>     item 80 key (30039322 DIR_ITEM 1076301169) itemoff 4083 itemsize 78
>         location key (30039325 INODE_ITEM 0) type FILE
>         transid 136248 data_len 0 name_len 48
>         name: obs-service-download_src_package-20130318.ebuild
>     item 81 key (30039322 DIR_ITEM 2438219243) itemoff 4041 itemsize 42
>         location key (0 UNKNOWN.0 0) type FILE
>         transid 136192 data_len 0 name_len 12
>         name: metadata.xml
>     item 82 key (30039322 DIR_ITEM 4007295565) itemoff 4003 itemsize 38
>         location key (47302013 INODE_ITEM 0) type FILE
>         transid 3377699720527872 data_len 0 name_len 8
>         name: Manifest
>     item 83 key (30039322 DIR_INDEX 3) itemoff 3961 itemsize 42
>         location key (30039324 INODE_ITEM 0) type FILE
>         transid 136248 data_len 0 name_len 12
>         name: metadata.xml
>     item 84 key (30039322 DIR_INDEX 4) itemoff 3883 itemsize 78
>         location key (30039325 INODE_ITEM 0) type FILE
>         transid 136248 data_len 0 name_len 48
>         name: obs-service-download_src_package-20130318.ebuild
>     item 85 key (30039322 DIR_INDEX 5) itemoff 3845 itemsize 38
>         location key (47302013 INODE_ITEM 0) type FILE
>         transid 3861419965563273305 data_len 0 name_len 8
>         name: Manifest
>     item 86 key (30039323 INODE_ITEM 0) itemoff 3685 itemsize 160
>         generation 136248 transid 202216 size 782 nbytes 782
>         block group 0 mode 100644 links 0 uid 250 gid 250 rdev 0
>         sequence 0 flags 0xb(none)
>         atime 1504685599.188061317 (2017-09-06 08:13:19)
>         ctime 1512818139.540278499 (2017-12-09 11:15:39)
>         mtime 1504685599.188061317 (2017-09-06 08:13:19)
>         otime 1504685599.188061317 (2017-09-06 08:13:19)
>     item 87 key (30039323 EXTENT_DATA 0) itemoff 2882 itemsize 803
>         generation 136248 type 0 (inline)
>         inline extent data size 782 ram_bytes 782 compression 0 (none)
>     item 88 key (30039324 INODE_ITEM 0) itemoff 2722 itemsize 160
>         generation 136248 transid 202216 size 448 nbytes 448
>         block group 0 mode 100644 links 1 uid 250 gid 250 rdev 0
>         sequence 0 flags 0xb(none)
>         atime 1504685599.188061317 (2017-09-06 08:13:19)
>         ctime 1512818139.540278499 (2017-12-09 11:15:39)
>         mtime 1504685599.188061317 (2017-09-06 08:13:19)
>         otime 1504685599.188061317 (2017-09-06 08:13:19)
>     item 89 key (30039324 INODE_REF 30039322) itemoff 2700 itemsize 22
>         index 3 namelen 12 name: metadata.xml
> leaf 36701356032 items 44 free space 8701 generation 202216 owner 257
> leaf 36701356032 flags 0x1(WRITTEN) backref revision 1
> fs uuid de1723e2-150c-4448-bb36-be14d7d96093
> chunk uuid 443a227c-4f87-419a-b89a-3f5714eea403
>     item 0 key (30039324 EXTENT_DATA 0) itemoff 15814 itemsize 469
>         generation 136248 type 0 (inline)
>         inline extent data size 448 ram_bytes 448 compression 0 (none)
>     item 1 key (30039325 INODE_ITEM 0) itemoff 15654 itemsize 160
>         generation 136248 transid 202216 size 213 nbytes 213
>         block group 0 mode 100644 links 1 uid 250 gid 250 rdev 0
>         sequence 0 flags 0xb(none)
>         atime 1504685599.188061317 (2017-09-06 08:13:19)
>         ctime 1512818139.540278499 (2017-12-09 11:15:39)
>         mtime 1504685599.188061317 (2017-09-06 08:13:19)
>         otime 1504685599.188061317 (2017-09-06 08:13:19)
>     item 2 key (30039325 INODE_REF 30039322) itemoff 15596 itemsize 58
>         index 4 namelen 48 name:
> obs-service-download_src_package-20130318.ebuild
>     item 3 key (30039325 EXTENT_DATA 0) itemoff 15362 itemsize 234
>         generation 136248 type 0 (inline)
>         inline extent data size 213 ram_bytes 213 compression 0 (none)
>     item 4 key (30039326 INODE_ITEM 0) itemoff 15202 itemsize 160
>         generation 136248 transid 202216 size 120 nbytes 0
>         block group 0 mode 40755 links 1 uid 250 gid 250 rdev 0
>         sequence 0 flags 0xe(none)
>         atime 1504685599.188061317 (2017-09-06 08:13:19)
>         ctime 1512818139.541278502 (2017-12-09 11:15:39)
>         mtime 1504685599.188061317 (2017-09-06 08:13:19)
>         otime 1504685599.188061317 (2017-09-06 08:13:19)
>     item 5 key (30039326 INODE_REF 30037720) itemoff 15168 itemsize 34
>         index 243 namelen 24 name: obs-service-download_url
>     item 6 key (30039326 DIR_ITEM 1441374077) itemoff 15098 itemsize 70
>         location key (30039329 INODE_ITEM 0) type FILE
>         transid 136248 data_len 0 name_len 40
>         name: obs-service-download_url-20130318.ebuild
>     item 7 key (30039326 DIR_ITEM 2438219243) itemoff 15056 itemsize 42
>         location key (30039328 INODE_ITEM 0) type FILE
> --
>         generation 229515 transid 229515 size 26 nbytes 26
>         block group 0 mode 100644 links 1 uid 250 gid 250 rdev 0
>         sequence 0 flags 0x2(none)
>         atime 1516557882.505679580 (2018-01-21 18:04:42)
>         ctime 1516557882.505679580 (2018-01-21 18:04:42)
>         mtime 1516557882.505679580 (2018-01-21 18:04:42)
>         otime 1516557882.505679580 (2018-01-21 18:04:42)
>     item 61 key (47302010 INODE_REF 30002892) itemoff 11503 itemsize 14
>         index 1798 namelen 4 name: HEAD
>     item 62 key (47302010 EXTENT_DATA 0) itemoff 11456 itemsize 47
>         generation 229515 type 0 (inline)
>         inline extent data size 26 ram_bytes 26 compression 0 (none)
>     item 63 key (47302013 INODE_ITEM 0) itemoff 11296 itemsize 160
>         generation 229515 transid 229516 size 782 nbytes 782
>         block group 0 mode 100644 links 1 uid 250 gid 250 rdev 0
>         sequence 0 flags 0x0(none)
>         atime 1516557882.551679697 (2018-01-21 18:04:42)
>         ctime 1516557882.551679697 (2018-01-21 18:04:42)
>         mtime 1516557882.551679697 (2018-01-21 18:04:42)
>         otime 1516557882.551679697 (2018-01-21 18:04:42)
>     item 64 key (47302013 INODE_REF 30039322) itemoff 11278 itemsize 18
>         index 5 namelen 8 name: Manifest
> leaf 186518913024 items 86 free space 3119 generation 229516 owner 257
> leaf 186518913024 flags 0x1(WRITTEN) backref revision 1
> fs uuid de1723e2-150c-4448-bb36-be14d7d96093
> chunk uuid 443a227c-4f87-419a-b89a-3f5714eea403
>     item 0 key (47302013 EXTENT_DATA 0) itemoff 15480 itemsize 803
>         generation 229516 type 0 (inline)
>         inline extent data size 782 ram_bytes 782 compression 0 (none)
>     item 1 key (47302018 INODE_ITEM 0) itemoff 15320 itemsize 160
>         generation 229515 transid 229515 size 41 nbytes 41
>         block group 0 mode 100644 links 1 uid 250 gid 250 rdev 0
>         sequence 0 flags 0x2(none)
>         atime 1516557883.180681304 (2018-01-21 18:04:43)
>         ctime 1516557883.180681304 (2018-01-21 18:04:43)
>         mtime 1516557883.180681304 (2018-01-21 18:04:43)
>         otime 1516557883.180681304 (2018-01-21 18:04:43)
>     item 2 key (47302018 INODE_REF 30002892) itemoff 15301 itemsize 19
>         index 1801 namelen 9 name: ORIG_HEAD
>     item 3 key (47302018 EXTENT_DATA 0) itemoff 15239 itemsize 62
>         generation 229515 type 0 (inline)
> --------------------------------------------
> 

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