Public bug reported:

$ lsb_release -rd
No LSB modules are available.
Description:    Ubuntu 24.04.3 LTS
Release:        24.04

On upgrading from 6.14.0-29  
  Version: 6.14.0-29.29~24.04.1
to 6.14.0-32
  Version: 6.14.0-32.32~24.04.1

Users with nfs mounted home dirs started immediately experiencing lock-
ups. Generally within a few seconds the shell (tty or graphic) would
lock up and become un-responsive to keyboard. In a GUI environment the
mouse was still visible and moving, but no clicks had any effect; any
application windows frozen (generally not enough time to actually open
anything).

Machines are OK for non-nfs users - normal login is fine; and even when
the device is "locked" as above (preventing local login), remote login
is fine for non-nfs users.

Reverting to k 6.14.0-29 immediately restores normal behaviour.

Logs show some hung processes - syslog extract attached.

nfs mount options are:

infhome-pri.domain:/cs/staffhome on /var/autofs/home/home type nfs4
(rw,nosuid,nodev,relatime,vers=4.2,rsize=1047672,wsize=1047532,namlen=255,hard,proto=tcp,timeo=15,retrans=5,sec=sys,clientaddr=XX.XX.XX.XX,fsc,local_lock=none,addr=XX.XX.XX.XX)

** Affects: linux-hwe-6.14 (Ubuntu)
     Importance: Undecided
         Status: New

** Attachment added: "Sample syslog"
   https://bugs.launchpad.net/bugs/2125678/+attachment/5911584/+files/syslog

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https://bugs.launchpad.net/bugs/2125678

Title:
  Upgrade from 6.14.0-29 to 6.14.0-32 results in locked up login
  sessions on systems with nfs mounted home dirs

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