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mount_nfs.8: Update BUGS section for NFSv4.1/4.2

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If the "intr" and/or "soft" mount options are used for
NFSv4 mounts, the protocol can be broken when the
operation returns without waiting for the RPC reply.
The likelyhood of failure increases for NFSv4.1/4.2
mounts, since the session slot will be broken when
an RPC reply is not processed.

This is mentioned in the BUGS section of "man mount_nfs",
but there was no specific mention of the session slot
problem.  This patch adds a sentence for this case.

PR: 260011

(cherry picked from commit aba7a81ab7)
This commit is contained in:
Rick Macklem 2022-07-03 13:37:23 -07:00
parent b9ba9906b8
commit 9fe17b520a
1 changed files with 4 additions and 1 deletions
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5
sbin/mount_nfs/mount_nfs.8
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@ -28,7 +28,7 @@
.\" @(#)mount_nfs.8 8.3 (Berkeley) 3/29/95
.\" $FreeBSD$
.\"
.Dd January 11, 2022
.Dd July 2, 2022
.Dt MOUNT_NFS 8
.Os
.Sh NAME
@ -662,5 +662,8 @@ enforced by the server, the options
and
.Cm soft
cannot be safely used.
For NFSv4 minor version 1 or 2 mounts, these options may
also result
in hung mount points, due to corruption of session slots.
.Cm hard
nfsv4 mounts are strongly recommended.