I got the same issue which drove me crazy for weeks and months. Every so often or seldom, some (not all!) files/dirs suddendly belong to 4294967294. Causing the strangest errors out of the view for my users due to software running into permission problems where there shouldn't be any. Then after a while (a matter of hours) its gone and works again.
Setup is a host fileserver (debian wheezy) having a guest in kvm (debian jessie) which mounts via nfs4 to make the git/svn repositories accessable to the network. Users and Group are coming from LDAP. The guest has jessie despite of being production since for a while I thought I needed some feature of it.. (apache-itk AssignUserIdExpr) and I didn't downgrade it once I discorved I actually don't needed it. Previously the git/svn was XEN and I thought XEN networking hickups might be the issue for it, so I moved it all to kvm, but recently the error reappeared again. I searched now a new, the error is known to the others as well https://bugs.launchpad.net/ubuntu/+source/nfs-utils/+bug/1124250. It is supposedly fixed with this kernel patch: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0b0a84154eff56913e91df29de5c3a03a0029e38 Which is in kernel.git v3.18~17^2^2 So if jessie is not going to get 3.18 all including I definitely wish for this patch to be "backported", "forwardported", "jerrypicked" or how it is called, since it can be a real bugger to anyone who uses nfsv4 beyond trivial single user/family settings. Kind regards, Axel
