kernel 5.13.x and nfs

Hi *, just a hint. There seems to be a problem with kernel 5.13.x and nfs (at least v4). Using this kernel, nfs v4 mounts won't succeed any longer - they are just hanging. I found https://lkml.org/lkml/2021/6/29/218, but no solution. Switching back to 5.12.x solves the problem. Bye. Michael.