Re: Fwd: Read time tree block corruption detected

[Tyler Richmond <t.d.richmond@gmail.com>]

Chris, I had used the correct mountpoint in the command. I just edited
it in the email to be /mountpoint for consistency.

Qu, I'll try the repair. Fingers crossed!

On Wed, May 6, 2020 at 9:13 PM Qu Wenruo <quwenruo.btrfs@gmx.com> wrote:
>
>
>
> On 2020/5/7 上午5:54, Tyler Richmond wrote:
> > Hello,
> >
> > I looked up this error and it basically says ask a developer to
> > determine if it's a false error or not. I just started getting some
> > slow response times, and looked at the dmesg log to find a ton of
> > these errors.
> >
> > [192088.446299] BTRFS critical (device sdh): corrupt leaf: root=5
> > block=203510940835840 slot=4 ino=1311670, invalid inode generation:
> > has 18446744073709551492 expect [0, 6875827]
> > [192088.449823] BTRFS error (device sdh): block=203510940835840 read
> > time tree block corruption detected
> > [192088.459238] BTRFS critical (device sdh): corrupt leaf: root=5
> > block=203510940835840 slot=4 ino=1311670, invalid inode generation:
> > has 18446744073709551492 expect [0, 6875827]
> > [192088.462773] BTRFS error (device sdh): block=203510940835840 read
> > time tree block corruption detected
> > [192088.464711] BTRFS critical (device sdh): corrupt leaf: root=5
> > block=203510940835840 slot=4 ino=1311670, invalid inode generation:
> > has 18446744073709551492 expect [0, 6875827]
> > [192088.468457] BTRFS error (device sdh): block=203510940835840 read
> > time tree block corruption detected
> >
> > btrfs device stats, however, doesn't show any errors.
> >
> > Is there anything I should do about this, or should I just continue
> > using my array as normal?
>
> This is caused by older kernel underflow inode generation.
>
> Latest btrfs-progs can fix it, using btrfs check --repair.
>
> Or you can go safer, by manually locating the inode using its inode
> number (1311670), and copy it to some new location using previous
> working kernel, then delete the old file, copy the new one back to fix it.
>
> Thanks,
> Qu
>
> >
> > Thank you!
> >
>