K 10
svn:author
V 8
rmacklem
K 8
svn:date
V 27
2017-04-11T20:28:15.323865Z
K 7
svn:log
V 627
During a server crash recovery, fix the NFSv4.1 client for a NFSERR_BADSESSION
during recovery.

If the NFSv4.1 client gets a NFSv4.1 NFSERR_BADSESSION reply to an Open/Lock
operation while recovering from the server crash/reboot, allow the opens
to be retained for a subsequent recovery attempt. Since NFSv4.1 servers
should only reply NFSERR_BADSESSION after a crash/reboot that has lost
state, this case should almost never happen.
However, for the AmazonEFS file service, this has been observed when
the client does a fresh TCP connection for RPCs.

Reported by:	cperciva
Tested by:	cperciva
PR:		216088
MFC after:	2 weeks

END