Re: [PATCH] nfsd: deal with DELEGRETURN racing with CB_RECALL

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I should probably state what I'm currently chasing:

1.) Somehow, delegations wind up on the cl_revoked list at the server.
2.) The server continually asserts SEQ4_STATUS_RECALLABLE_STATE_REVOKED.
3.) The client for some reason doesn't have anything to give the server
    to satisfy it.

I speculate that this patch will assist in making this go away - I'm
just not 100% sure of all the conditions that result in making #1 possible.
(Enough recalls backed up on the callback slot on the same filehandle
stacking timeouts/retries and resultant path down errors to exceed lease
time?). Unfortunately this problem seems to always occur at ~1AM - and
obtaining a network capture of the problem in action has been elusive.

Thanks,

Andy

-- 
Andrew W. Elble
aweits@xxxxxxxxxxxxxxxxxx
Infrastructure Engineer, Communications Technical Lead
Rochester Institute of Technology
PGP: BFAD 8461 4CCF DC95 DA2C B0EB 965B 082E 863E C912
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