On Mon, Nov 19, 2012 at 9:39 AM, Colin Guthrie <mageia@colin.guthr.ie> wrote:
Hi,

For many, many years, I've always done a umount -l  on stale NFS mounts
(e.g. when resuming in a different location to suspending).

This has always worked, but very recently (i.e. in the last couple
weeks) this has stopped working.

Anyone know what could be up?

Blino's change to nfs-utils doesn't look like a problem.

The call that's stalling things is stat(), but this never used to be a
problem with lazy umounts in the past (not sure if it's just stat()
that's now blocking at a kernel level or of some userspace code now
calls it when in the past it did not?

If your nfs mount is dead I would expect stat to hang, so I guess it wasn't called in the past.