2.6.38.3 leaking disk space of files created via NFS

[Holger Hoffstaette]

It seems that 2.6.38.3 is still having pretty severe problems with NFS.
Files that were created/written (or only read?) via NFS can be deleted
from the server (after unmounting the client), but the disk space is not
freed. More precisely it's Gentoo's /usr/portage/distfiles on ext4 and
clients save downloaded package tarballs there.

There are no stale .nfsXX files or open file handles; the disk space is
returned after a reboot of the server, which is obviously not really an
option. I do get a message about deleted orphan inodes on reboot.

Is this a known problem? Sorry if this is a bit vague but I can't
constantly reboot the server for experiments. Anyone else who can observe
this problem?

thanks,
Holger


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