On 11/19/2012 08:55 AM, Pascal Terjan wrote:


On Mon, Nov 19, 2012 at 9:39 AM, Colin Guthrie <[email protected] <mailto:[email protected]>> wrote:


    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.
Somebody bobbled, fix available. See https://bugzilla.redhat.com/show_bug.cgi?id=866303

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