linux-ext4 - Re: bug with large

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Date:   Tue, 27 Jul 2021 00:22:10 -0600
From:   Andreas Dilger <adilger@...ger.ca>
To:     Carlos Carvalho <carlos@...ica.ufpr.br>
Cc:     linux-ext4@...r.kernel.org
Subject: Re: bug with large_dir in 5.12.17

On Jul 22, 2021, at 8:23 AM, Carlos Carvalho <carlos@...ica.ufpr.br> wrote:
> 
> There is a bug when enabling large_dir in 5.12.17. I got this during a backup:
> 
> index full, reach max htree level :2
> Large directory feature is not enabled on this filesystem
> 
> So I unmounted, ran tune2fs -O large_dir /dev/device and mounted again. However
> this error appeared:
> 
> dx_probe:864: inode #576594294: block 144245: comm rsync: directory leaf block found instead of index block
> 
> I unmounted, ran fsck and it "salvaged" a bunch of directories. However at the
> next backup run the same errors appeared again.
> 
> This is with vanilla 5.2.17.

Hi Carlos,
are you able to reproduce this error on a new directory that did not hit
the 2-level htree limit before enabling large_dir, or did you only see this
with directories that hit the 2-level htree limit before the update?
Did you test on any newer kernels than 5.2.17?

Cheers, Andreas






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