Firefox cache entries directory prevents rw mounting due to corrupt leaf. No way to fix this unmounted.

* Firefox cache entries directory prevents rw mounting due to corrupt leaf. No way to fix this unmounted.
@ 2018-12-22 18:12 Jesse Emeth
  2018-12-23  0:51 ` Qu Wenruo
  0 siblings, 1 reply; 8+ messages in thread
From: Jesse Emeth @ 2018-12-22 18:12 UTC (permalink / raw)
  To: linux-btrfs

BTRFS /@/ with home as subvolume results in Firefox cache entries
corrupt leaf that in turn prevents rw mounting.
BTRFS Standard Repair Tools are unsuccessful to fix what seems a small
localised error to a non critical directory.
I could not find any BTRFS type tool to remove just that directory
without the volume mounted rw.
And there is the catch 22 of not being able to mount it ro while the
"corrupt leaf" error occurs.
Initially btrfs rescue zero-log gave rw access.
I could not delete the "entries" directory associated with the Firefox
cache "entries" directory.
I was permitted to rename it so I renamed "entries" as "broken-inode-455338"
The system shortly thereafter set itself again to ro. Since then rw
mount is not possible.

The steps at https://lists.opensuse.org/opensuse/2017-02/msg00930.html
were attempted to repair the system.
There Richard Brown said "can we please bury the nonsense that btrfs
is lacking when it comes to repair and recovery tools"
I say hell no!
As a user there seems to be a lack of granular ability to remove
corrupt entries.
There also seems to be no way of denying a subvolume (eg: in this case
"home") from consideration when mounting the main volume.
Or to remove a subvolume from the main volume.
If there was, I could remove the "home" subvolume and recreate just that.
So in this example it seems a very small and trivial error of a cache
dir trashes the entire btrfs subvolume.

What suggestions exist to prevent such problems occuring again other
than separating out all subvolumes onto separate partitions or LVM's?
And are there any tools available to manually repair a problem like I
am experiencing with "entries" dir.

Thankyou

Relevant logs and settings are below as sent to bugzilla
(https://bugzilla.kernel.org/show_bug.cgi?id=202041)

---------------------------------
# Note: block 537133056 inode 455338 is the entries dir of the cache
directories for firefox
/home/USER/.cache/mozilla/firefox/PROFILENAME/cache2/entries
# I was unable to delete the broken dir, but managed to rename
./entries to ./broken-inode-455338 and to create a new empty ./entries
dir
# Then was able to initiate scrub etc
# But it later failed again that day. There was no way I could
ascertain to remove the broken inode.
# Mounted ro, the ./broken-inode-455338 dir can be opened but appears empty
# It becomes problematic seemingly only when volume is mounted rw

---------------------------------
localhost:/ # mount -t btrfs -o ro
UUID=133e69bd-65d0-4af6-8a4b-5d2ddd6fefb5 /mnt/sda7
---------------------------------
localhost:/ # uname -a
Linux localhost.localdomain 4.18.13-1-default #1 SMP PREEMPT Wed Oct
10 18:47:28 UTC 2018 (c434d5c) x86_64 x86_64 x86_64 GNU/Linux
---------------------------------
localhost:/ #   btrfs --version
btrfs-progs v4.17.1
---------------------------------
localhost:/ #   btrfs fi show
Label: 'pt_osa1'  uuid: 133e69bd-65d0-4af6-8a4b-5d2ddd6fefb5
    Total devices 2 FS bytes used 30.23GiB
    devid    1 size 97.66GiB used 39.03GiB path /dev/sda7
    devid    2 size 97.66GiB used 39.03GiB path /dev/sdb7
---------------------------------
localhost:/ # btrfs fi df /mnt/sda7
Data, RAID1: total=37.00GiB, used=29.46GiB
System, RAID1: total=32.00MiB, used=16.00KiB
Metadata, RAID1: total=2.00GiB, used=787.94MiB
GlobalReserve, single: total=82.91MiB, used=0.00B
---------------------------------
localhost:/ # mount -t btrfs -o ro
UUID=133e69bd-65d0-4af6-8a4b-5d2ddd6fefb5 /mnt/sda7
[Thu Dec 20 02:29:52 2018] BTRFS info (device sda7): disk space
caching is enabled
[Thu Dec 20 02:29:52 2018] BTRFS info (device sda7): has skinny extents
[Thu Dec 20 02:35:12 2018] BTRFS info (device sda7): disk space
caching is enabled
[Thu Dec 20 02:35:12 2018] BTRFS info (device sda7): has skinny extents
---------------------------------
# Note: Mounting ro as above works without any error. Attempts to
mount rw fails...
localhost:/ # mount -t btrfs -o rw
UUID=133e69bd-65d0-4af6-8a4b-5d2ddd6fefb5 /mnt/sda7
mount: /mnt/sda7: wrong fs type, bad option, bad superblock on
/dev/sda7, missing codepage or helper program, or other error.
[Thu Dec 20 02:36:06 2018] BTRFS info (device sda7): disk space
caching is enabled
[Thu Dec 20 02:36:06 2018] BTRFS info (device sda7): has skinny extents
[Thu Dec 20 02:36:25 2018] BTRFS critical (device sda7): corrupt leaf:
root=263 block=537133056 slot=98 ino=455338, name hash mismatch with
key, have 0x000000007dd7ffcb expect 0x00000000dfc274ff
[Thu Dec 20 02:36:25 2018] BTRFS: error (device sda7) in
merge_reloc_roots:2466: errno=-5 IO failure
[Thu Dec 20 02:36:25 2018] BTRFS warning (device sda7): failed to
recover relocation: -30
[Thu Dec 20 02:36:25 2018] BTRFS error (device sda7): cleaner
transaction attach returned -30
[Thu Dec 20 02:36:25 2018] BTRFS error (device sda7): open_ctree failed
---------------------------------
# Immediately after failing rw mount, attempts to mount ro results in
no errors recorded...
mount -t btrfs -o subvol=@/home,ro
UUID=133e69bd-65d0-4af6-8a4b-5d2ddd6fefb5 /mnt/sda7/home
[Thu Dec 20 02:46:36 2018] BTRFS info (device sda7): disk space
caching is enabled
[Thu Dec 20 02:46:36 2018] BTRFS info (device sda7): has skinny extents
---------------------------------
# Note: block 537133056 inode 455338 is the entries dir of the cache
directories for firefox
/home/USER/.cache/mozilla/firefox/PROFILENAME/cache2/entries
btrfs inspect-internal dump-tree -b 537133056 /dev/sda7
btrfs-progs v4.17.1
leaf 537133056 items 107 free space 6118 generation 40120 owner 263
leaf 537133056 flags 0x1(WRITTEN) backref revision 1
fs uuid 133e69bd-65d0-4af6-8a4b-5d2ddd6fefb5
chunk uuid 4cab7492-6459-4bda-8703-dcc6a81e622b
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        location key (728604 INODE_ITEM 0) type FILE
        transid 39422 data_len 0 name_len 40
        name: 757BF61AFEB83742183033A093C37DD30872A312
    item 71 key (455338 DIR_ITEM 3686024358) itemoff 11243 itemsize 70
        location key (685064 INODE_ITEM 0) type FILE
        transid 36975 data_len 0 name_len 40
        name: 1609D27BED5901460B635A8216B01CF2CDAF2026
    item 72 key (455338 DIR_ITEM 3686235831) itemoff 11173 itemsize 70
        location key (722181 INODE_ITEM 0) type FILE
        transid 39120 data_len 0 name_len 40
        name: 80DCED3DD26B94C02333319BDB926BEAE098CE92
    item 73 key (455338 DIR_ITEM 3686322830) itemoff 11103 itemsize 70
        location key (719166 INODE_ITEM 0) type FILE
        transid 39005 data_len 0 name_len 40
        name: B0518CA181298747E191183A9D5D151F18BE977C
    item 74 key (455338 DIR_ITEM 3687033727) itemoff 11033 itemsize 70
        location key (720132 INODE_ITEM 0) type FILE
        transid 39028 data_len 0 name_len 40
        name: B003849A4BBBBA0E10A4D41EC27BFBD9A113BF13
    item 75 key (455338 DIR_ITEM 3687167174) itemoff 10963 itemsize 70
        location key (695892 INODE_ITEM 0) type FILE
        transid 37735 data_len 0 name_len 40
        name: 1B74B4425F854DAD1AA02E6D3202B4697E770716
    item 76 key (455338 DIR_ITEM 3693689369) itemoff 10893 itemsize 70
        location key (737971 INODE_ITEM 0) type FILE
        transid 39662 data_len 0 name_len 40
        name: F722EBDED3D4E1D8D028753455AC5CA8013FF059
    item 77 key (455338 DIR_ITEM 3695370307) itemoff 10823 itemsize 70
        location key (727391 INODE_ITEM 0) type FILE
        transid 39365 data_len 0 name_len 40
        name: C5F6A9DBF0F81A13E1453C367DD193A369B9E20F
    item 78 key (455338 DIR_ITEM 3695472464) itemoff 10753 itemsize 70
        location key (745532 INODE_ITEM 0) type FILE
        transid 39940 data_len 0 name_len 40
        name: A59BB01F7C4DA74929E2F8207D99D2E7F70CBE16
    item 79 key (455338 DIR_ITEM 3697884434) itemoff 10683 itemsize 70
        location key (737773 INODE_ITEM 0) type FILE
        transid 39656 data_len 0 name_len 40
        name: C6B70A61FA7B5FC6403FD2A1803C5C6FE28EC156
    item 80 key (455338 DIR_ITEM 3700659568) itemoff 10613 itemsize 70
        location key (721890 INODE_ITEM 0) type FILE
        transid 39119 data_len 0 name_len 40
        name: 60DD9D127CF4D59E27972FAFF57B63E326A010ED
    item 81 key (455338 DIR_ITEM 3701461322) itemoff 10543 itemsize 70
        location key (743657 INODE_ITEM 0) type FILE
        transid 39904 data_len 0 name_len 40
        name: 1EDE36E65181CD92DEC34281EEF08FCEC0541745
    item 82 key (455338 DIR_ITEM 3702531124) itemoff 10473 itemsize 70
        location key (714153 INODE_ITEM 0) type FILE
        transid 38907 data_len 0 name_len 40
        name: 7EF6235586E1FEE458EF2C3560F690ACF00D64A3
    item 83 key (455338 DIR_ITEM 3709878314) itemoff 10403 itemsize 70
        location key (748270 INODE_ITEM 0) type FILE
        transid 40120 data_len 0 name_len 40
        name: 5CCACDD44241E3EBEEA33570219B0F19F91D10CC
    item 84 key (455338 DIR_ITEM 3711939545) itemoff 10333 itemsize 70
        location key (718030 INODE_ITEM 0) type FILE
        transid 38973 data_len 0 name_len 40
        name: 55BFCF28726B22E68AAF2C393B4CF5D2DF8397E2
    item 85 key (455338 DIR_ITEM 3714383304) itemoff 10263 itemsize 70
        location key (708140 INODE_ITEM 0) type FILE
        transid 38357 data_len 0 name_len 40
        name: 50CD01B20F1AFEDC318FEB46A467557A2878B9CC
    item 86 key (455338 DIR_ITEM 3717994042) itemoff 10193 itemsize 70
        location key (722031 INODE_ITEM 0) type FILE
        transid 39119 data_len 0 name_len 40
        name: C6C8588E91B54622066E8462DA69681505C0EF32
    item 87 key (455338 DIR_ITEM 3720066625) itemoff 10123 itemsize 70
        location key (721870 INODE_ITEM 0) type FILE
        transid 39119 data_len 0 name_len 40
        name: 7ED965594B3BF9BA68AAB6EAE62490E28B9A7277
    item 88 key (455338 DIR_ITEM 3720757208) itemoff 10053 itemsize 70
        location key (740718 INODE_ITEM 0) type FILE
        transid 39757 data_len 0 name_len 40
        name: 067B3AA0A501EC22CC7E87D4AEFDD5F6C140C938
    item 89 key (455338 DIR_ITEM 3721224365) itemoff 9983 itemsize 70
        location key (736920 INODE_ITEM 0) type FILE
        transid 39651 data_len 0 name_len 40
        name: EC355701D5BAF931F6D0D3F1F4B64891227BFBDE
    item 90 key (455338 DIR_ITEM 3728042486) itemoff 9913 itemsize 70
        location key (691232 INODE_ITEM 0) type FILE
        transid 37527 data_len 0 name_len 40
        name: 2430E27DEC60EEDD6B26F9BBD890B03097AE141D
    item 91 key (455338 DIR_ITEM 3728903590) itemoff 9843 itemsize 70
        location key (747885 INODE_ITEM 0) type FILE
        transid 40082 data_len 0 name_len 40
        name: 898EA51F7C37A05B570675AD499423BF2D1BC6D0
    item 92 key (455338 DIR_ITEM 3734264028) itemoff 9773 itemsize 70
        location key (722185 INODE_ITEM 0) type FILE
        transid 39120 data_len 0 name_len 40
        name: 24469A256D4FE3814D33B6975D49E3A28EF16EC9
    item 93 key (455338 DIR_ITEM 3738964685) itemoff 9703 itemsize 70
        location key (685067 INODE_ITEM 0) type FILE
        transid 36975 data_len 0 name_len 40
        name: 044D06846635A0CF7C9E32ABD4AFE5EEDAFDB5CD
    item 94 key (455338 DIR_ITEM 3748117366) itemoff 9633 itemsize 70
        location key (692538 INODE_ITEM 0) type FILE
        transid 37622 data_len 0 name_len 40
        name: 860CBC7964C9F41AAB9A0BFDAA57DBCB01163779
    item 95 key (455338 DIR_ITEM 3749145932) itemoff 9563 itemsize 70
        location key (728144 INODE_ITEM 0) type FILE
        transid 39404 data_len 0 name_len 40
        name: 5E3F61D6678EDD6BBDBD9F16E5871D825357F695
    item 96 key (455338 DIR_ITEM 3750982353) itemoff 9493 itemsize 70
        location key (721315 INODE_ITEM 0) type FILE
        transid 39117 data_len 0 name_len 40
        name: FCE0F0D3C3A3D1DF147BCC410EC03235BECF877E
    item 97 key (455338 DIR_ITEM 3751215179) itemoff 9423 itemsize 70
        location key (675576 INODE_ITEM 0) type FILE
        transid 36353 data_len 0 name_len 40
        name: 79606EABD028C5A6DFC0AA2F60B06EB61FFF5CDA
    item 98 key (455338 DIR_ITEM 3754063103) itemoff 9353 itemsize 70
        location key (463979 INODE_ITEM 0) type FILE
        transid 25552 data_len 0 name_len 40
        name: 648C5FC8D5C2BB828ED86E44DD9E5FB3A6430332
    item 99 key (455338 DIR_ITEM 3759476008) itemoff 9283 itemsize 70
        location key (695411 INODE_ITEM 0) type FILE
        transid 37702 data_len 0 name_len 40
        name: EA0D80B3AC2EB5A79D44A9E36279688B4F4F4571
    item 100 key (455338 DIR_ITEM 3760671333) itemoff 9213 itemsize 70
        location key (742035 INODE_ITEM 0) type FILE
        transid 39862 data_len 0 name_len 40
        name: 3ACDD6CB0A6CB9AA9C9D9F6EA2AA3339963B7A9C
    item 101 key (455338 DIR_ITEM 3769483178) itemoff 9143 itemsize 70
        location key (570869 INODE_ITEM 0) type FILE
        transid 30187 data_len 0 name_len 40
        name: 85A9CF3B7F369C806A0D8768216748C516DD0844
    item 102 key (455338 DIR_ITEM 3770386312) itemoff 9073 itemsize 70
        location key (463983 INODE_ITEM 0) type FILE
        transid 25552 data_len 0 name_len 40
        name: 088AFB851C028D9E256D0B7C68348F277FC77557
    item 103 key (455338 DIR_ITEM 3770577855) itemoff 9003 itemsize 70
        location key (746148 INODE_ITEM 0) type FILE
        transid 39955 data_len 0 name_len 40
        name: 02D103922E00747EE0CA600BAB1DBB820E19945F
    item 104 key (455338 DIR_ITEM 3774765965) itemoff 8933 itemsize 70
        location key (728088 INODE_ITEM 0) type FILE
        transid 39396 data_len 0 name_len 40
        name: 9DCEAF9793EA0EF13D1967FDD3CDCA1DE361106F
    item 105 key (455338 DIR_ITEM 3776729019) itemoff 8863 itemsize 70
        location key (699983 INODE_ITEM 0) type FILE
        transid 37906 data_len 0 name_len 40
        name: A48EC9DA3C204DF9C124C10C231D1D478BFB6BFA
    item 106 key (455338 DIR_ITEM 3781356904) itemoff 8793 itemsize 70
        location key (610716 INODE_ITEM 0) type FILE
        transid 32073 data_len 0 name_len 40
        name: 8B37E9EF2812C5B70E7B0FF7EBCB317B4323BD8A
---------------------------------
localhost:/ # btrfs inspect-internal dump-super /dev/sda7
superblock: bytenr=65536, device=/dev/sda7
---------------------------------------------------------
csum_type        0 (crc32c)
csum_size        4
csum            0x9c238f67 [match]
bytenr            65536
flags            0x1
            ( WRITTEN )
magic            _BHRfS_M [match]
fsid            133e69bd-65d0-4af6-8a4b-5d2ddd6fefb5
label            pt_osa1
generation        429428
root            31473664
sys_array_size        129
chunk_root_generation    429386
root_level        1
chunk_root        154484604928
chunk_root_level    0
log_root        0
log_root_transid    0
log_root_level        0
total_bytes        209715200000
bytes_used        32460804096
sectorsize        4096
nodesize        16384
leafsize (deprecated)        16384
stripesize        4096
root_dir        6
num_devices        2
compat_flags        0x0
compat_ro_flags        0x0
incompat_flags        0x17b
            ( MIXED_BACKREF |
              DEFAULT_SUBVOL |
              COMPRESS_LZO |
              COMPRESS_ZSTD |
              BIG_METADATA |
              EXTENDED_IREF |
              SKINNY_METADATA )
cache_generation    429428
uuid_tree_generation    363
dev_item.uuid        f8bfb24e-353d-43fa-8d37-c2f61d966f32
dev_item.fsid        133e69bd-65d0-4af6-8a4b-5d2ddd6fefb5 [match]
dev_item.type        0
dev_item.total_bytes    104857600000
dev_item.bytes_used    41909485568
dev_item.io_align    0
dev_item.io_width    0
dev_item.sector_size    0
dev_item.devid        1
dev_item.dev_group    0
dev_item.seek_speed    0
dev_item.bandwidth    0
dev_item.generation    0
---------------------------------
localhost:/ # mount | grep '/mnt/sda7'; blkid | grep
'133e69bd-65d0-4af6-8a4b-5d2ddd6fefb5'; btrfs inspect-internal
inode-resolve 455338 /mnt/sda7
/dev/sda7 on /mnt/sda7 type btrfs
(ro,relatime,space_cache,subvolid=260,subvol=/@/.snapshots/1/snapshot)
/dev/sda7: LABEL="pt_osa1" UUID="133e69bd-65d0-4af6-8a4b-5d2ddd6fefb5"
UUID_SUB="f8bfb24e-353d-43fa-8d37-c2f61d966f32" TYPE="btrfs"
PTTYPE="dos" PARTLABEL="pt_osa1"
PARTUUID="738e830b-3c58-4ce2-97f4-8e7503b92dce"
/dev/sdb7: LABEL="pt_osa1" UUID="133e69bd-65d0-4af6-8a4b-5d2ddd6fefb5"
UUID_SUB="a11e8a7a-5fd2-4f9b-a9cc-b051b211bcbb" TYPE="btrfs"
PTTYPE="dos" PARTLABEL="pt_osb1"
PARTUUID="738e830b-3c58-4ce2-97f4-8e7503b92dce"
ERROR: ino paths ioctl: No such file or directory
---------------------------------
localhost:/ # btrfs su li /mnt/sda7
ID 258 gen 253 top level 5 path @
ID 259 gen 428546 top level 258 path @/.snapshots
ID 260 gen 428625 top level 259 path @/.snapshots/1/snapshot
ID 263 gen 429383 top level 258 path @/home
ID 264 gen 429288 top level 258 path @/opt
ID 265 gen 11660 top level 258 path @/srv
ID 266 gen 429332 top level 258 path @/tmp
ID 267 gen 429177 top level 258 path @/usr/local
ID 268 gen 429365 top level 258 path @/var
ID 269 gen 427718 top level 258 path @/root
ID 307 gen 24177 top level 259 path @/.snapshots/6/snapshot
ID 308 gen 24177 top level 259 path @/.snapshots/7/snapshot
ID 309 gen 24177 top level 259 path @/.snapshots/8/snapshot
ID 311 gen 24177 top level 259 path @/.snapshots/9/snapshot
ID 320 gen 24220 top level 259 path @/.snapshots/16/snapshot
ID 321 gen 24220 top level 259 path @/.snapshots/17/snapshot
ID 330 gen 27036 top level 259 path @/.snapshots/24/snapshot
ID 331 gen 27077 top level 259 path @/.snapshots/25/snapshot
ID 353 gen 73635 top level 259 path @/.snapshots/46/snapshot
ID 354 gen 73635 top level 259 path @/.snapshots/47/snapshot
ID 355 gen 73635 top level 259 path @/.snapshots/48/snapshot
ID 356 gen 73635 top level 259 path @/.snapshots/49/snapshot
ID 358 gen 176335 top level 259 path @/.snapshots/50/snapshot
ID 359 gen 176335 top level 259 path @/.snapshots/51/snapshot
ID 361 gen 176335 top level 259 path @/.snapshots/52/snapshot
ID 362 gen 176335 top level 259 path @/.snapshots/53/snapshot
ID 363 gen 176335 top level 259 path @/.snapshots/54/snapshot
ID 364 gen 176335 top level 259 path @/.snapshots/55/snapshot
---------------------------------
#cat /etc/fstab
UUID=133e69bd-65d0-4af6-8a4b-5d2ddd6fefb5 / btrfs compress=lzo,rw,noatime 0 0
UUID=133e69bd-65d0-4af6-8a4b-5d2ddd6fefb5 /.snapshots btrfs
subvol=@/.snapshots,compress=lzo 0 0
#UUID=133e69bd-65d0-4af6-8a4b-5d2ddd6fefb5 /boot btrfs
subvol=@/boot,rw,noatime 0 0
#UUID=133e69bd-65d0-4af6-8a4b-5d2ddd6fefb5 /boot/grub2/i386-pc btrfs
subvol=@/boot/grub2/i386-pc,rw,noatime 0 0
#UUID=133e69bd-65d0-4af6-8a4b-5d2ddd6fefb5 /boot/grub2/x86_64-efi
btrfs subvol=@/boot/grub2/x86_64-efi,rw,noatime 0 0
UUID=133e69bd-65d0-4af6-8a4b-5d2ddd6fefb5 /home btrfs
subvol=@/home,compress=lzo,rw,noatime 0 0
UUID=133e69bd-65d0-4af6-8a4b-5d2ddd6fefb5 /opt btrfs
subvol=@/opt,compress=lzo,rw,noatime 0 0
UUID=133e69bd-65d0-4af6-8a4b-5d2ddd6fefb5 /root btrfs
subvol=@/root,compress=lzo,rw,noatime 0 0
UUID=133e69bd-65d0-4af6-8a4b-5d2ddd6fefb5 /srv btrfs
subvol=@/srv,compress=lzo,rw,noatime 0 0
UUID=133e69bd-65d0-4af6-8a4b-5d2ddd6fefb5 /tmp btrfs
subvol=@/tmp,compress=lzo,rw,noatime 0 0
UUID=133e69bd-65d0-4af6-8a4b-5d2ddd6fefb5 /usr/local btrfs
subvol=@/usr/local,compress=lzo,rw,noatime 0 0
UUID=133e69bd-65d0-4af6-8a4b-5d2ddd6fefb5 /var btrfs
subvol=@/var,compress=lzo,rw,noatime 0 0
UUID=9471d962-1890-4624-9d89-2356bd5f0269 swap swap defaults 0 0
-----------------------------------
#btrfs check --readonly /dev/sda7 2>&1 | tee
/mnt/archive01/--RepairBTRFS/btrfs-check-sda7-20181221.txt
[1/7] checking root items
[2/7] checking extents
[3/7] checking free space cache
[4/7] checking fs roots
ERROR: DIR_ITEM[455338 3754063103] name
648C5FC8D5C2BB828ED86E44DD9E5FB3A643033276b6353640.first-shutdown.jsonlz4D19A0BCFCB.20181103140737858.wpsnda%202%20Questions%20Answered%20Lavaughn%20being%20a%20Nazi%20SS_20181029_1033.html0actor_20180213_20181028.html-25-17-.png=907-24%2011-57-47%7D.html
namelen 40 filetype 1 mismatch with its hash, wanted 3754063103 have
2111307723
root 263 inode 455338 errors 10, odd dir item
    unresolved ref dir 455338 index 0 namelen 40 name
648C5FC8D5C2BB828ED86E44DD9E5FB3A6430332 filetype 1 errors 6, no dir
index, no inode ref
    unresolved ref dir 455338 index 5857 namelen 40 name
648C5FC8D5C2CB828ED86E44DD9E5FB3A6430332 filetype 1 errors 1, no dir
item
relocroot 263 inode 455338 errors 10, odd dir item
    unresolved ref dir 455338 index 0 namelen 40 name
648C5FC8D5C2BB828ED86E44DD9E5FB3A6430332 filetype 1 errors 6, no dir
index, no inode ref
    unresolved ref dir 455338 index 5857 namelen 40 name
648C5FC8D5C2CB828ED86E44DD9E5FB3A6430332 filetype 1 errors 1, no dir
item
ERROR: errors found in fs roots
Opening filesystem to check...
Checking filesystem on /dev/sda7
UUID: 133e69bd-65d0-4af6-8a4b-5d2ddd6fefb5
found 32460804096 bytes used, error(s) found
total csum bytes: 28059520
total tree bytes: 826228736
total fs tree bytes: 739164160
total extent tree bytes: 48562176
btree space waste bytes: 171226092
file data blocks allocated: 41388740608
 referenced 47772729344
-----------------------------------
localhost:/home/linux # mount -t btrfs -o
subvol=@/home,rw,usebackuproot
UUID=133e69bd-65d0-4af6-8a4b-5d2ddd6fefb5 /mnt/sda7-home
mount: /mnt/sda7-home: wrong fs type, bad option, bad superblock on
/dev/sdb7, missing codepage or helper program, or other error.
[Sat Dec 22 12:20:36 2018] BTRFS info (device sda7): trying to use
backup root at mount time
[Sat Dec 22 12:20:36 2018] BTRFS info (device sda7): disk space
caching is enabled
[Sat Dec 22 12:20:36 2018] BTRFS info (device sda7): has skinny extents
[Sat Dec 22 12:20:55 2018] BTRFS critical (device sda7): corrupt leaf:
root=263 block=537133056 slot=98 ino=455338, name hash mismatch with
key, have 0x000000007dd7ffcb expect 0x00000000dfc274ff
[Sat Dec 22 12:20:55 2018] BTRFS critical (device sda7): corrupt leaf:
root=263 block=537133056 slot=98 ino=455338, name hash mismatch with
key, have 0x000000007dd7ffcb expect 0x00000000dfc274ff
[Sat Dec 22 12:20:55 2018] BTRFS: error (device sda7) in
merge_reloc_roots:2425: errno=-5 IO failure
[Sat Dec 22 12:20:55 2018] BTRFS warning (device sda7): failed to
recover relocation: -30
[Sat Dec 22 12:20:55 2018] BTRFS error (device sda7): cleaner
transaction attach returned -30
[Sat Dec 22 12:20:55 2018] BTRFS error (device sda7): open_ctree failed
-----------------------------------
localhost:/home/linux # mount -t btrfs -o subvol=@,rw,usebackuproot
UUID=133e69bd-65d0-4af6-8a4b-5d2ddd6fefb5 /mnt/sda7
mount: /mnt/sda7: wrong fs type, bad option, bad superblock on
/dev/sdb7, missing codepage or helper program, or other error
[Sat Dec 22 12:22:11 2018] BTRFS info (device sda7): trying to use
backup root at mount time
[Sat Dec 22 12:22:11 2018] BTRFS info (device sda7): disk space
caching is enabled
[Sat Dec 22 12:22:11 2018] BTRFS info (device sda7): has skinny extents
[Sat Dec 22 12:22:29 2018] BTRFS critical (device sda7): corrupt leaf:
root=263 block=537133056 slot=98 ino=455338, name hash mismatch with
key, have 0x000000007dd7ffcb expect 0x00000000dfc274ff
[Sat Dec 22 12:22:29 2018] BTRFS critical (device sda7): corrupt leaf:
root=263 block=537133056 slot=98 ino=455338, name hash mismatch with
key, have 0x000000007dd7ffcb expect 0x00000000dfc274ff
[Sat Dec 22 12:22:29 2018] BTRFS: error (device sda7) in
merge_reloc_roots:2425: errno=-5 IO failure
[Sat Dec 22 12:22:29 2018] BTRFS warning (device sda7): failed to
recover relocation: -30
[Sat Dec 22 12:22:29 2018] BTRFS error (device sda7): cleaner
transaction attach returned -30
[Sat Dec 22 12:22:29 2018] BTRFS error (device sda7): open_ctree failed
-----------------------------------
localhost:/home/linux # btrfs rescue super-recover /dev/sda7
All supers are valid, no need to recover
-----------------------------------
localhost:/home/linux # btrfs rescue zero-log /dev/sda7
Clearing log on /dev/sda7, previous log_root 0, level 0
localhost:/home/linux # btrfs rescue zero-log /dev/sdb7
Clearing log on /dev/sdb7, previous log_root 0, level 0
-----------------------------------
localhost:/home/linux # btrfs rescue chunk-recover /dev/sda7
Scanning: DONE in dev0, DONE in dev1
We are going to rebuild the chunk tree on disk, it might destroy the
old metadata on the disk, Are you sure? [y/N]: y
Chunk tree recovered successfully
-----------------------------------
localhost:/home/linux # btrfs check --repair /dev/sda7 2>&1 | tee
/mnt/archive01/--RepairBTRFS/btrfs-check-sda7-repair-20181222.txt
[1/7] checking root items
Fixed 0 roots.
[2/7] checking extents
[3/7] checking free space cache
[4/7] checking fs roots
ERROR: DIR_ITEM[455338 3754063103] name
648C5FC8D5C2BB828ED86E44DD9E5FB3A643033276b6353640.first-shutdown.jsonlz4D19A0BCFCB.20181103140737858.wpsnda%202%20Questions%20Answered%20Lavaughn%20being%20a%20Nazi%20SS_20181029_1033.html0actor_20180213_20181028.html-25-17-.png=907-24%2011-57-47%7D.html
namelen 40 filetype 1 mismatch with its hash, wanted 3754063103 have
2111307723
root 263 inode 455338 errors 10, odd dir item
    unresolved ref dir 455338 index 0 namelen 40 name
648C5FC8D5C2BB828ED86E44DD9E5FB3A6430332 filetype 1 errors 6, no dir
index, no inode ref
    unresolved ref dir 455338 index 5857 namelen 40 name
648C5FC8D5C2CB828ED86E44DD9E5FB3A6430332 filetype 1 errors 1, no dir
item
relocroot 263 inode 455338 errors 10, odd dir item
    unresolved ref dir 455338 index 0 namelen 40 name
648C5FC8D5C2BB828ED86E44DD9E5FB3A6430332 filetype 1 errors 6, no dir
index, no inode ref
    unresolved ref dir 455338 index 5857 namelen 40 name
648C5FC8D5C2CB828ED86E44DD9E5FB3A6430332 filetype 1 errors 1, no dir
item
ERROR: errors found in fs roots
enabling repair mode
Opening filesystem to check...
Checking filesystem on /dev/sda7
UUID: 133e69bd-65d0-4af6-8a4b-5d2ddd6fefb5
No device size related problem found
cache and super generation don't match, space cache will be invalidated
found 32460181504 bytes used, error(s) found
total csum bytes: 28059520
total tree bytes: 826392576
total fs tree bytes: 739328000
total extent tree bytes: 48562176
btree space waste bytes: 171278836
file data blocks allocated: 41415008256
 referenced 47803871232
-----------------------------------

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