Re: Fwd: Read time tree block corruption detected

[Qu Wenruo <quwenruo.btrfs@gmx.com>]

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>> BTRFS critical (device sda2): corrupt leaf: root=294 block=1169152675840
>> slot=1 ino=915987, invalid inode generation: has 18446744073709551492
>> expect [0, 5852829]
>> BTRFS error (device sda2): block=1169152675840 read time tree block
>> corruption detected
>>
>> So how do I repair this? Am I doing something wrong?
> 
> Please provide the following dump:
> btrfs ins dump-tree -b 1169152675840 /dev/sda2
> 
> Feel free to remove the filenames in the dump.
> 
> And 'btrfs check /dev/sda2' output after the repair.
> 
> As a workaround, you can use older kernel (v5.2 at most) to temporary
> ignore the problem.
> 
> Thanks,
> Qu
> 
>>
>>>>> THanks,
>>>>> Qu
>>>>>>> Thanks,
>>>>>>> Qu
>>>>>>>
>>>>>>>> Linux = 5.6.0-1032-oem

Wait, it's just v5.6??

Then that means, the error message can be wrong. Both transid and inode
generation error could be output as "inode generation error".

And to repair inode transid, the repair ability is not yet merged into
upstream btrfs-progs.

You can use the out-of-tree branch to repair it:
https://github.com/adam900710/btrfs-progs/tree/inode_transid

I'm afraid you have to build the btrfs-progs in liveUSB environment to
repair it...

I need to re-push the branch to make it into upstream.

Thanks,
Qu


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