I did run a btrfs check on a disk and I got
Checking filesystem on /dev/sdc1
UUID: 08e9f1ce-81d5-4c46-828d-5bfff1a6dd5a
checking extents
checking free space cache
checking fs roots
root 5 root dir 256 error
root 5 inode 256 errors 200, dir isize wrong
root 5 inode 18446744073709551605 errors 2001, no inode item, link count wrong
unresolved ref dir 256 index 0 namelen 25 name System Volume
Information filetype 2 errors 6, no dir index, no inode ref
ERROR: errors found in fs roots
found 406587551744 bytes used, error(s) found
total csum bytes: 395533372
total tree bytes: 1461895168
total fs tree bytes: 960806912
total extent tree bytes: 53084160
btree space waste bytes: 238263923
file data blocks allocated: 405125656576
referenced 414054232064
The disk mount perfectly with linux lite (older kernel) and also mount
with 5.0.0-37-generic
Do not work (system freeze) with 5.3.0-26-generic (do not work also with
recent other linux distrib such as MX, POP OS (System76).
btrfs version is 4.15.1
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https://bugs.launchpad.net/bugs/1860590
Title:
can't read superblock on /dev/xxxx sdc1 in my case
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