linux-kernel - Re: [PATCH] ovl: change error message to info for empty lowerdir

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Date: Tue, 28 May 2024 11:54:51 +0100
From: Eric Curtin <ecurtin@...hat.com>
To: Miklos Szeredi <miklos@...redi.hu>
Cc: "open list:OVERLAY FILESYSTEM" <linux-unionfs@...r.kernel.org>, Alexander Larsson <alexl@...hat.com>, 
	Wei Wang <weiwang@...hat.com>, Amir Goldstein <amir73il@...il.com>, 
	open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] ovl: change error message to info for empty lowerdir

On Tue, 28 May 2024 at 11:34, Miklos Szeredi <miklos@...redi.hu> wrote:
>
> On Tue, 28 May 2024 at 11:03, Eric Curtin <ecurtin@...hat.com> wrote:
> >
> > In some deployments, an empty lowerdir is not considered an error.
>
> I don't think this can be triggered in upstream kernel and can be
> removed completely.

True... Just switched to Fedora Rawhide and instead we just see this one:

pr_err("cannot append lower layer");

>
> Or do you have a reproducer?

Run one of these vms:

https://github.com/osbuild/bootc-image-builder

And on boot:

sudo bootc switch quay.io/fedora/fedora-bootc:rawhide && sudo reboot

is the reproducer that is closest to upstream

Is mise le meas/Regards,

Eric Curtin

>
> Thanks,
> Miklos
>