linux-kernel - Re: [PATCH] [REGRESSION] ovl: Handle ENOSYS when fileattr support is missing in lower/upper fs

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Date:   Thu, 26 Jan 2023 14:26:27 +0100
From:   Miklos Szeredi <miklos@...redi.hu>
To:     jkatz@...mlabs.org
Cc:     Christian Kohlschütter 
        <christian@...lschutter.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        overlayfs <linux-unionfs@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>
Subject: Re: [PATCH] [REGRESSION] ovl: Handle ENOSYS when fileattr support is
 missing in lower/upper fs

On Wed, 18 Jan 2023 at 04:41, Jonathan Katz <jkatz@...mlabs.org> wrote:

> I believe that I am still having issues occur within Ubuntu 22.10 with
> the 5.19 version of the kernel that might be associated with this
> discussion.  I apologize up front for any faux pas I make in writing
> this email.

No need to apologize.   The fix in question went into v6.0 of the
upstream kernel.  So apparently it's still missing from the distro you
are using.

> An example error from our syslog:
>
> kernel: [2702258.538549] overlayfs: failed to retrieve lower fileattr
> (8020 MeOHH2O
> RecoverySample2-20221219-A-JJL-WebinarHilic10C-TOF-TT54-Neg-1722.d/analysis.tsf,
> err=-38)

Yep, looks like the same bug.

Thanks,
Miklos