On 2019/7/29 下午9:02, Swâmi Petaramesh wrote:
> Le 29/07/2019 à 14:32, Swâmi Petaramesh a écrit :
>>
>> Today, same machine, but this time my external BTRFS (over LUKS) backup
>> USB HDD went corrupt the same.
>
> btrfs check reports as follows :
>
> # btrfs check /dev/mapper/luks-UUID
> Opening filesystem to check...
> Checking filesystem on /dev/mapper/luks-UUID
> UUID: ---Something---
> [1/7] checking root items
> [2/7] checking extents
> parent transid verify failed on 2137144377344 wanted 7684 found 7499
> parent transid verify failed on 2137144377344 wanted 7684 found 7499
> parent transid verify failed on 2137144377344 wanted 7684 found 7499
This means btrfs metadata CoW is broken.
Did the system went through some power loss?
If not, then it's btrfs or lower layer causing the problem.
Did you have any btrfs without LUKS?
Thanks,
Qu
> Ignoring transid failure
> leaf parent key incorrect 2137144377344
> bad block 2137144377344
> ERROR: errors found in extent allocation tree or chunk allocation
> [3/7] checking free space cache
> [4/7] checking fs roots
>
> (Still running)
>
> ॐ
>
