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14bbf4fe5a
During testing at a recent IETF NFSv4 Bakeathon, a non-FreeBSD server was rebooted. After the reboot, the FreeBSD client sent an Open/Claim_previous with a Getattr after the Open in the same compound. The Open/Claim_previous was done to recover the Open and a Delegation for for a file. The Open succeeded, but the Getattr after the Open failed with NFSERR_DELAY. This resulted in the FreeBSD client retrying the entire RPC over and over again, until the server's recovery grace period ended. Since the Open succeeded, there was no need to retry the entire RPC. This patch modifies the NFSv4 client side recovery Open/Claim_previous RPC reply handling to deal with this case. With this patch, the Getattr reply of NFSERR_DELAY is ignored and the successful Open reply is processed. This bug will not normally affect users, since this non-FreeBSD server is not widely used (it may not even have shipped to any customers). MFC after: 1 month |
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