Re: [PATCH 2/5] NFS: Request a directory delegation on ACCESS, CREATE, and UNLINK

[Jon Hunter <jonathanh@nvidia.com>]

Hi Anna,

On 04/11/2025 15:06, Anna Schumaker wrote:
> From: Anna Schumaker <anna.schumaker@oracle.com>
> 
> This patch adds a new flag: NFS_INO_REQ_DIR_DELEG to signal that a
> directory wants to request a directory delegation the next time it does
> a GETATTR. I have the client request a directory delegation when doing
> an access, create, or unlink call since these calls indicate that a user
> is working with a directory.
> 
> Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com>


We use NFS for boot testing our boards and once this commit landed in 
-next a lot of them, but no all, started failing to boot. Bisect is 
pointing to this change.

We have a custom init script that runs to mount the rootfs and I see 
that it displays ...

[   10.238091] Run /init as init process
[   10.266026] ERROR: mounting debugfs fail...
[   10.286535] Root device found: nfs
[   10.300342] Ethernet interface: eth0
[   10.313920] IP Address: 192.168.99.2
[   10.382738] Rootfs mounted over nfs
[   10.416010] Switching from initrd to actual rootfs

Its odd it fails to mount the debugfs. There are no particular errors 
that are shown but it never boots up completely. I am unable to cleanly 
revert this due to other dependencies, but if you have any suggestions 
for me to try, please let me know.

Jon

-- 
nvpublic