NFS issue - newnfs_request: Wrong session srvslot=1 slot=0, freeing free slot!!

From: Ganbold Tsagaankhuu <ganbold_at_gmail.com>
Date: Fri, 26 Aug 2022 02:45:32 UTC
Hi,

We are having trouble with NFS running on STABLE:

Aug 26 02:21:42 iron2 kernel: newnfs_request: Wrong session srvslot=1 slot=0
Aug 26 02:21:42 iron2 kernel: freeing free slot!!
Aug 26 02:21:43 iron2 kernel: newnfs_request: Wrong session srvslot=1 slot=0
Aug 26 02:21:43 iron2 kernel: freeing free slot!!
Aug 26 02:21:54 iron2 kernel: newnfs_request: Wrong session srvslot=1 slot=0
Aug 26 02:21:54 iron2 kernel: freeing free slot!!
Aug 26 02:21:58 iron2 kernel: newnfs_request: Wrong session srvslot=1 slot=2
Aug 26 02:21:58 iron2 kernel: retseq diff 0x1
Aug 26 02:21:58 iron2 kernel: freeing free slot!!
Aug 26 02:21:59 iron2 kernel: newnfs_request: Wrong session srvslot=1 slot=2
Aug 26 02:21:59 iron2 kernel: retseq diff 0x1
Aug 26 02:21:59 iron2 kernel: freeing free slot!!
Aug 26 02:22:12 iron2 kernel: newnfs_request: Wrong session srvslot=0 slot=2
Aug 26 02:22:12 iron2 kernel: retseq diff 0x1
Aug 26 02:22:12 iron2 kernel: freeing free slot!!
Aug 26 02:22:14 iron2 kernel: newnfs_request: Wrong session srvslot=1 slot=0
Aug 26 02:22:14 iron2 kernel: freeing free slot!!
Aug 26 02:22:15 iron2 kernel: newnfs_request: Bad session slot=1
Aug 26 02:22:15 iron2 kernel: freeing free slot!!
Aug 26 02:22:30 iron2 kernel: newnfs_request: Wrong session srvslot=1 slot=2
Aug 26 02:22:30 iron2 kernel: retseq diff 0x1
Aug 26 02:22:30 iron2 kernel: freeing free slot!!
Aug 26 02:22:31 iron2 kernel: newnfs_request: Bad session slot=1
Aug 26 02:22:31 iron2 kernel: freeing free slot!!
Aug 26 02:22:46 iron2 kernel: newnfs_request: Wrong session srvslot=1 slot=0
Aug 26 02:22:46 iron2 kernel: freeing free slot!!

We are running FreeBSD 13.1-STABLE #3 stable/13-n252198-c1434fd2dea: Fri
Aug 26 01:51:53 UTC 2022 and mount options are:

rw,nfsv4,minorversion=1,bg,soft,timeo=20,retrans=5,retrycnt=5
ro,nfsv4,minorversion=1,bg,soft,timeo=20,retrans=5,retrycnt=5

Is there any fix for this issue?

thanks a lot,

Ganbold