K 10
svn:author
V 8
rmacklem
K 8
svn:date
V 27
2022-07-29T17:09:17.428778Z
K 7
svn:log
V 864
nfscl: Fix setting of nfsess_defunct for nfscl_hasexpired()

Commit a7bb120f8b87 added a printf for the case where recovery
has not marked the session defunct by setting nfsess_defunct
to 1.  It turns out that nfscl_hasexpired() calls
nfsrpc_setclient() directly, without setting nfsess_defunct.
This patch replaces the printf with code that sets
nfsess_defunct to 1 to handle this case.

If SIGTERM is issued to a process when it is doing I/O on
an "intr" mount, the NFSv4 server may reply NFSERR_BADSTATEID,
due to the Open being prematurely closed.
This can result in a call to nfscl_hasexpired() to do a
recovery.

This would explain at least one hang described in the PR.

PR: 260011
MFC after:	2 weeks

(cherry picked from commit be7b87de16ffbabb81989e13a4b19a178e3ab8ee)

Git Hash:   c6e56b2a89ea54b4861a622772b86d04076499f3
Git Author: rmacklem@FreeBSD.org
END