On Tue, Aug 07, 2012 at 10:36:31AM -0400, Bryan Schumaker wrote: > Your stack trace is showing v4 calls on the failing box, those > definitely shouldn't be happening if you're using v3. Can you double > check /etc/fstab and /proc/mounts on a working kernel to be sure? So the bug is probably (for whatever reason) that the nfs4 path is called for an nfs3 mount :) Anyway, I attach /proc/mounts and /etc/fstab from that box running a v3.5-rc5 kernel (where it works). Joerg