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Description of problem:
The 8.4 Bug 1872310 introduced a new mount option 'softreval' but it cannot be found from current man pages.
We may need this upstream patch:
commit b5381c96298d75ba66625a007e2390e2b501850d
Author: Trond Myklebust <trond.myklebust>
Date: Wed Jan 29 10:45:39 2020 -0500
manpage: Add a description of the 'softreval' / 'nosoftreval' mount option
Btw after mounting with softreval, I can't see it from the mount options list. Don't know if this is as expected.
E.g.
# mount localhost:/export_test/ /mnt_test8/ -o softreval
# nfsstat -m
/mnt_test8 from localhost:/export_test
Flags: rw,relatime,vers=4.2,rsize=262144,wsize=262144,namlen=255,hard,proto=tcp6,timeo=600,retrans=2,sec=sys,clientaddr=::1,local_lock=none,addr=::1
# nfsstat -m | grep soft
# mountstats /mnt_test8/ | grep soft
# rpm -q nfs-utils
nfs-utils-2.3.3-51.el8.x86_64
#
Version-Release number of selected component (if applicable):
nfs-utils-2.3.3-51.el8
How reproducible:
Steps to Reproduce:
1.
2.
3.
Actual results:
Expected results:
Additional info:
Have verified this man page update.
[root@yoyang-rhel-860-updates-202205230 ~]# rpm -q nfs-utils
nfs-utils-2.3.3-51.el8.x86_64
[root@yoyang-rhel-860-updates-202205230 ~]# rpm -Uvh nfs-utils-2.3.3-52.el8.x86_64.rpm
Verifying... ################################# [100%]
Preparing... ################################# [100%]
Updating / installing...
1:nfs-utils-1:2.3.3-52.el8 ################################# [ 50%]
Cleaning up / removing...
2:nfs-utils-1:2.3.3-51.el8 ################################# [100%]
[root@yoyang-rhel-860-updates-202205230 ~]# man nfs
[root@yoyang-rhel-860-updates-202205230 ~]# man nfs | grep softre
softreval / nosoftreval
It is possible to combine softreval with the soft mount option, in which case operations that cannot be served up from cache will time out and return an error after retrans
Note: the default mount option is nosoftreval which disallows fallback to cache when revalidation fails, and instead follows the behavior dictated by the hard or soft mount option.
[root@yoyang-rhel-860-updates-202205230 ~]# rpm -q nfs-utils
nfs-utils-2.3.3-52.el8.x86_64
[root@yoyang-rhel-860-updates-202205230 ~]#
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory (nfs-utils bug fix and enhancement update), and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHBA-2022:7768