Comment 88 for bug 769927

...and with the above reproducer, I can reproduce this without autofs in the mix now. Here's the details:

The server (a f15 box named salusa) has a separate filesystem mounted on /scratch that is exported with (rw,insecure,no_root_squash). It has a file in it called "foo". The server does not declare an explicit fsid=0 export, so it fakes up a pseudoroot.

On the client, I mount the filesystem:

    # mount -t nfs4 salusa:/scratch /mnt/salusa

...I'm then careful not to touch anything under /mnt/salusa. I then run the reproducer above with the following path:

    # ./forkstat /mnt/salusa/scratch/foo

...and then:

    # umount /mnt/salusa

...at that point, the BUG pops.