Comment 11 for bug 2060217

So mount v4 returns 32 (probably means EPIPE) but v3 returns 0.

ubuntu@nfs:~$ sudo strace -e mount mount localhost:/home /mnt/nfs_home -o vers=4
mount.nfs: mount system call failed for /mnt/nfs_home
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1830, si_uid=0, si_status=32, si_utime=0, si_stime=0} ---
+++ exited with 32 +++

ubuntu@nfs:~$ sudo strace -e mount mount localhost:/home /mnt/nfs_home -o vers=3
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=1850, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
+++ exited with 0 +++

Could I know the kernel version which use for below test? Seems it was tested on 20240302.
https://autopkgtest.ubuntu.com/results/autopkgtest-noble/noble/s390x/n/nfs-utils/20240302_020943_bf464@/log.gz

And I tried with mainline/v6.8 kernel which has the same issue.