Hi there,
After resuming from hibernation, my system shows weirdness; the
following dmesg line alerted me:
Jan 22 08:10:33 [kernel] BTRFS critical (device sdb3): invalid dir
item name + data len: 3 + 32907
Although I can boot (root is BTRFS), (re-)mount the concerned FS,
succesfully scrub it (no error reported), I'm unable to repair... More
info (using a sysrescue with static a btrfs-progs build -- the same
installed on the main Funtoo system):
# uname -a
Linux sysresccd 4.9.60-std512-amd64 #2 SMP Thu Nov 2 17:43:13 UTC
2017 x86_64 Intel(R) Core(TM) i7-4702MQ CPU @ 2.20GHz GenuineIntel
GNU/Linux
# ./btrfs.static --version
btrfs-progs v4.14.1
# ./btrfs.static fi show
Label: 'BTR-POOL' uuid: de1723e2-150c-4448-bb36-be14d7d96093
Total devices 1 FS bytes used 97.73GiB
devid 1 size 230.35GiB used 173.04GiB path /dev/sdb3
# ./btrfs.static fi df /mnt/gentoo/
Data, single: total=167.00GiB, used=95.64GiB
System, single: total=32.00MiB, used=48.00KiB
Metadata, single: total=6.01GiB, used=2.09GiB
GlobalReserve, single: total=512.00MiB, used=0.00B
# dmesg | grep BTRFS
[14963.234135] BTRFS info (device sdb3): disk space caching is enabled
[14963.234138] BTRFS info (device sdb3): has skinny extents
[14963.261054] BTRFS info (device sdb3): detected SSD devices,
enabling SSD mode
[14963.261485] BTRFS info (device sdb3): checking UUID tree
As for check and repair attempts:
------------------------------------------8<--------------------------------------
# ./btrfs.static check -p --mode=lowmem --check-data-csum /dev/sdb3
Checking filesystem on /dev/sdb3
UUID: de1723e2-150c-4448-bb36-be14d7d96093
ERROR: data extent[1862352896 425984] backref lost
ERROR: data extent[1886453760 479232] backref lost
ERROR: data extent[1902219264 524288] backref lost
ERROR: data extent[1817378816 151552] backref lost
ERROR: data extent[1799688192 57344] backref lost
ERROR: data extent[1830277120 258048] backref lost
ERROR: data extent[2558107648 1368064] backref lost
ERROR: errors found in extent allocation tree or chunk allocation
cache and super generation don't match, space cache will be invalidated
ERROR: root 257 DIR_ITEM[30039322 4007295565] name namelen 0 filetype
0 mismatch with its hash, wanted 4007295565 have 4294967294
ERROR: root 257 INODE_ITEM[0] index 18446744073709551615 name
filetype 0 missing
ERROR: root 257 DIR_ITEM[30039322 4007295565] data_len shouldn't be 32907
ERROR: root 257 DIR_ITEM[30039322 4007295565] name namelen 3 filetype
0 mismatch with its hash, wanted 4007295565 have 987418363
ERROR: root 257 INODE_ITEM[0] index 18446744073709551615 name
filetype 0 missing
ERROR: root 1385 INODE_ITEM[0] index 18446744073709551615 name
metadata.xml filetype 1 missing
ERROR: root 1385 DIR_ITEM[30039322 4007295565] name namelen 0
filetype 0 mismatch with its hash, wanted 4007295565 have 4294967294
ERROR: root 1385 INODE_ITEM[0] index 18446744073709551615 name
filetype 0 missing
ERROR: root 1385 DIR_ITEM[30039322 4007295565] data_len shouldn't be 32907
ERROR: root 1385 DIR_ITEM[30039322 4007295565] name namelen 3
filetype 0 mismatch with its hash, wanted 4007295565 have 987418363
ERROR: root 1385 INODE_ITEM[0] index 18446744073709551615 name
filetype 0 missing
ERROR: root 1385 DIR ITEM[30039322 2] name filetype 1 missing
ERROR: root 1385 INODE REF[30039323, 30039322] name filetype 1 missing
ERROR: root 1385 DIR ITEM[30039322 3] name metadata.xml filetype 1 mismath
ERROR: root 1385 DIR ITEM[30039322 5] name Manifest filetype 1 mismath
ERROR: root 1385 INODE_ITEM[47302014] index 6 name metadata.xml
filetype 1 missing
ERROR: root 1385 INODE_ITEM[47302015] index 7 name metadata.xml
filetype 1 missing
ERROR: root 1385 DIR INODE [30039322] size 152 not equal to 163
ERROR: errors found in fs roots
found 104939749376 bytes used, error(s) found
total csum bytes: 100264520
total tree bytes: 15521644544
total fs tree bytes: 15299624960
total extent tree bytes: 88293376
btree space waste bytes: 3468278611
file data blocks allocated: 373752188928
referenced 322517573632
------------------------------------------8<--------------------------------------
------------------------------------------8<--------------------------------------
# ./btrfs.static check -p --repair /dev/sdb3
Fixed 0 roots.
enabling repair mode
Checking filesystem on /dev/sdb3
UUID: de1723e2-150c-4448-bb36-be14d7d96093
ref mismatch on [1799688192 57344] extent item 2, found 1
Incorrect local backref count on 1799688192 parent 186517012480 owner
0 offset 0 found 0 wanted 1 back 0xde7d020
Backref disk bytenr does not match extent record, bytenr=1799688192,
ref bytenr=0
backpointer mismatch on [1799688192 57344]
repair deleting extent record: key 1799688192 168 57344
adding new data backref on 1799688192 root 257 owner 47301992 offset 0 found 1
Repaired extent references for 1799688192
ref mismatch on [1817378816 151552] extent item 2, found 1
Incorrect local backref count on 1817378816 parent 186517012480 owner
0 offset 0 found 0 wanted 1 back 0xde78200
Backref disk bytenr does not match extent record, bytenr=1817378816,
ref bytenr=0
backpointer mismatch on [1817378816 151552]
repair deleting extent record: key 1817378816 168 151552
adding new data backref on 1817378816 root 257 owner 47301982 offset 0 found 1
Repaired extent references for 1817378816
ref mismatch on [1830277120 258048] extent item 2, found 1
Incorrect local backref count on 1830277120 parent 186517012480 owner
0 offset 0 found 0 wanted 1 back 0xde98c00
Backref disk bytenr does not match extent record, bytenr=1830277120,
ref bytenr=0
backpointer mismatch on [1830277120 258048]
repair deleting extent record: key 1830277120 168 258048
adding new data backref on 1830277120 root 257 owner 47302002 offset 0 found 1
Repaired extent references for 1830277120
ref mismatch on [1862352896 425984] extent item 2, found 1
Incorrect local backref count on 1862352896 parent 186517012480 owner
0 offset 0 found 0 wanted 1 back 0xddedd30
Backref disk bytenr does not match extent record, bytenr=1862352896,
ref bytenr=0
backpointer mismatch on [1862352896 425984]
repair deleting extent record: key 1862352896 168 425984
adding new data backref on 1862352896 root 257 owner 47301952 offset 0 found 1
Repaired extent references for 1862352896
ref mismatch on [1886453760 479232] extent item 2, found 1
Incorrect local backref count on 1886453760 parent 186517012480 owner
0 offset 0 found 0 wanted 1 back 0xde45b10
Backref disk bytenr does not match extent record, bytenr=1886453760,
ref bytenr=0
backpointer mismatch on [1886453760 479232]
repair deleting extent record: key 1886453760 168 479232
adding new data backref on 1886453760 root 257 owner 47301962 offset 0 found 1
Repaired extent references for 1886453760
ref mismatch on [1902219264 524288] extent item 2, found 1
Incorrect local backref count on 1902219264 parent 186517012480 owner
0 offset 0 found 0 wanted 1 back 0xde54c50
Backref disk bytenr does not match extent record, bytenr=1902219264,
ref bytenr=0
backpointer mismatch on [1902219264 524288]
repair deleting extent record: key 1902219264 168 524288
adding new data backref on 1902219264 root 257 owner 47301972 offset 0 found 1
Repaired extent references for 1902219264
ref mismatch on [2558107648 1368064] extent item 2, found 1
Incorrect local backref count on 2558107648 parent 186517012480 owner
0 offset 0 found 0 wanted 1 back 0xdefd520
Backref disk bytenr does not match extent record, bytenr=2558107648,
ref bytenr=0
backpointer mismatch on [2558107648 1368064]
repair deleting extent record: key 2558107648 168 1368064
adding new data backref on 2558107648 root 257 owner 47302009 offset 0 found 1
Repaired extent references for 2558107648
owner ref check failed [186517012480 16384]
repair deleting extent record: key 186517012480 168 16384
adding new tree backref on start 186517012480 len 16384 parent 0 root 1385
Repaired extent references for 186517012480
No device size related problem found
cache and super generation don't match, space cache will be invalidated
ERROR: DIR_ITEM[30039322 4007295565] name ]� namelen 0 filetype 0
mismatch with its hash, wanted 4007295565 have 4294967294
invalid location in dir item 0
ERROR: DIR_ITEM[30039322 4007295565] name namelen 3 filetype 0
mismatch with its hash, wanted 4007295565 have 987418363
invalid location in dir item 125
root 257 inode 30039322 errors 10, odd dir item
Failed to reset nlink for inode 18446744073709551361: No such file or directory
unresolved ref dir 30039322 index 0 namelen 0 name filetype 0
errors 6, no dir index, no inode ref
unresolved ref dir 30039322 index 0 namelen 3 name filetype 0
errors 6, no dir index, no inode ref
invalid location in dir item 0
ERROR: DIR_ITEM[30039322 4007295565] name ]� namelen 0 filetype 0
mismatch with its hash, wanted 4007295565 have 4294967294
invalid location in dir item 0
ERROR: DIR_ITEM[30039322 4007295565] name namelen 3 filetype 0
mismatch with its hash, wanted 4007295565 have 987418363
invalid location in dir item 125
Deleting bad dir index [30039322,96,2] root 1385
Deleting bad dir index [30039322,96,6] root 1385
Deleting bad dir index [30039322,96,7] root 1385
invalid dir item size
adding missing dir index/item pair for inode 30039323
invalid dir item size
ERROR: DIR_ITEM[30039322 4007295565] name ]� namelen 0 filetype 0
mismatch with its hash, wanted 4007295565 have 4294967294
invalid location in dir item 0
ERROR: DIR_ITEM[30039322 4007295565] name namelen 3 filetype 0
mismatch with its hash, wanted 4007295565 have 987418363
invalid location in dir item 125
root 257 inode 30039322 errors 10, odd dir item
Failed to reset nlink for inode 18446744073709551361: No such file or directory
unresolved ref dir 30039322 index 0 namelen 0 name filetype 0
errors 6, no dir index, no inode ref
unresolved ref dir 30039322 index 0 namelen 3 name filetype 0
errors 6, no dir index, no inode ref
ERROR: DIR_ITEM[30039322 4007295565] name ]� namelen 0 filetype 0
mismatch with its hash, wanted 4007295565 have 4294967294
invalid location in dir item 0
ERROR: DIR_ITEM[30039322 4007295565] name namelen 3 filetype 0
mismatch with its hash, wanted 4007295565 have 987418363
invalid location in dir item 125
root 257 inode 30039322 errors 10, odd dir item
Failed to reset nlink for inode 18446744073709551361: No such file or directory
unresolved ref dir 30039322 index 0 namelen 0 name filetype 0
errors 6, no dir index, no inode ref
unresolved ref dir 30039322 index 0 namelen 3 name filetype 0
errors 6, no dir index, no inode ref
ERROR: DIR_ITEM[30039322 4007295565] name ]� namelen 0 filetype 0
mismatch with its hash, wanted 4007295565 have 4294967294
invalid location in dir item 0
ERROR: DIR_ITEM[30039322 4007295565] name namelen 3 filetype 0
mismatch with its hash, wanted 4007295565 have 987418363
invalid location in dir item 125
root 257 inode 30039322 errors 10, odd dir item
....
------------------------------------------8<--------------------------------------
Note that the repair run seems stuck * looping* on the same inode
18446744073709551361, it doesn't progress (though I stopped it after
half an hour).
Please, help!
Cheers,
Marco
--
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
