On Sep 7, 2016, at 10:35 AM, Trond Myklebust wrote:
>> You can do umount -f and then unmount does work on the second try,
>> this also results in the following dmesg message:
>> [155381.995368] NFS: nfs4_reclaim_open_state: unhandled error -5
>>
>> I don't know this code well enough to take my own stab at a fix, but I can
>> help testing if needed.
>
> I did send out a set of patches a week ago that addresses an issue in this area, and I know of a couple more holes that need to be plugged.
I tried the tip of your testing branch (hash 05c974669ecec510a85d8534099bb75404e82c41)
and the problem is still there, though possibly a bit harder to trigger.
Bye,
Oleg--
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