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Groups > linux.debian.kernel > #80177
| From | Salvatore Bonaccorso <carnil@debian.org> |
|---|---|
| Newsgroups | linux.debian.bugs.dist, linux.debian.kernel |
| Subject | Bug#1049885: overlayfs: cannot rename symlink if lower filesystem is NFS |
| Date | 2023-08-24 09:30 +0200 |
| Message-ID | <H6cWZ-422V-1@gated-at.bofh.it> (permalink) |
| References | <H3oUF-2gVk-5@gated-at.bofh.it> <H3oUF-2gVk-5@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Cross-posted to 2 groups.
Control: tags -1 + moreinfo
Hi Guido,
On Wed, Aug 16, 2023 at 03:34:45PM +0200, Guido Berhoerster wrote:
> Package: linux-image-6.1.0-10-amd64
> Version: 6.1.38-2
>
> rename(2) on a symlink on an overlayfs where the lower filesystem is NFS
> fails with ENXIO.
>
> It can be reproduced as follows:
>
> lower=/nfs/lower # /nfs should be an nfs mount
> mkdir -p "${lower}" /upper /work /merged
> touch "${lower}"/foo
> ln -s foo "${lower}"/bar
> mount -t overlay overlay -o lowerdir="${lower}",upperdir=/upper,workdir=/work /merged
> mv /merged/bar /merged/baz
>
> If $lower is e.g. ext4 this works. This is a regression over kernel
> 5.10 in bullseye. It affects ltsp causing booting into root fs on NFS
> to fail due to an initrd script which temporarily renames the /sbin/init
> symlink, see https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1049397
Did you check, does that affect current stable versions upstream or
mainline?
Were you able to bisect the breaking change?
In both cases, it would be great it you can report this upstream and
keep us in the loop.
Regards,
Salvatore
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Bug#1049885: overlayfs: cannot rename symlink if lower filesystem is NFS Guido Berhoerster <guido@berhoerster.name> - 2023-08-16 15:40 +0200 Processed: Re: Bug#1049885: overlayfs: cannot rename symlink if lower filesystem is NFS "Debian Bug Tracking System" <owner@bugs.debian.org> - 2023-08-24 09:30 +0200 Bug#1049885: overlayfs: cannot rename symlink if lower filesystem is NFS Salvatore Bonaccorso <carnil@debian.org> - 2023-08-24 09:30 +0200 Bug#1049885: marked as done (overlayfs: cannot rename symlink if lower filesystem is NFS) "Debian Bug Tracking System" <owner@bugs.debian.org> - 2024-08-10 14:30 +0200
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