Using the new linux-imx6-3.14.79-2-armv7h.pkg.tar.xz package, proc-fs-nfsd.mount unit (which is a dependency of nfs-server.service) fails with following error. Using nfs-utils 2.1.1-3 version.
$this->bbcode_second_pass_code('', '
systemd[1]: Failed to mount NFSD configuration filesystem.
systemd[1]: proc-fs-nfsd.mount: Mount process exited, code=exited status=32
kernel: nfsd: Unknown symbol vfs_test_lock (err -22)
kernel: nfsd: no symbol version for vfs_test_lock
kernel: nfsd: Unknown symbol vfs_fsync_range (err -22)
kernel: nfsd: no symbol version for vfs_fsync_range
')
Downgrading the package to linux-imx6-3.14.79-1-armv7h.pkg.tar.xz fixes the error.