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

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On Thu, Jan 26, 2023 at 5:26 AM Miklos Szeredi <miklos@xxxxxxxxxx> wrote:
>
> On Wed, 18 Jan 2023 at 04:41, Jonathan Katz <jkatz@xxxxxxxxxxxx> 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.

Thank you for the reply! ---  I have upgraded the Kernel and it still
seems to be throwing errors.  Details follow:

Distro: Ubuntu 22.10.
Upgraded kernel using mainline (mainline --install-latest)

# uname -a
Linux instance-20220314-1510-fileserver-for-overlay
6.1.8-060108-generic #202301240742 SMP PREEMPT_DYNAMIC Tue Jan 24
08:13:53 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux

On mount I still get the following notice in syslog (representative):
Jan 30 19:11:46 instance-20220314-1510-fileserver-for-overlay kernel:
[   71.613334] overlayfs: null uuid detected in lower fs '/', falling
back to xino=off,index=off,nfs_export=off.

And on access (via samba) I still see the following errors in the
syslog (representative):
Jan 30 19:19:34 instance-20220314-1510-fileserver-for-overlay kernel:
[  539.181858] overlayfs: failed to retrieve lower fileattr (8020
MeOHH2O RecoverySample2-20221219-A-JJL-WebinarHilic10C-TOF-TT54-Neg-1722.d/Storage.mcf_idx,
err=-38)

And on the Windows client, the software still fails with the same symptomology.




>
> > 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



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