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Date:      Fri, 01 May 2026 04:17:29 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 294925] nfs4 client error make FreeBSD panic
Message-ID:  <bug-294925-227-mwstvR0dMV@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-294925-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=294925

--- Comment #1 from Jov <amutu@amutu.com> ---
note 192.168.15/24 is a wireguard tunnel network, there is some unstabilities
these days. Some /var/log/messages before panic:
Apr 27 11:44:41 dog2 kernel: nfs server 192.168.15.57:/: not responding
Apr 27 11:47:01 dog2 kernel: nfs server 192.168.15.57:/: is alive again
Apr 27 16:58:32 dog2 kernel: nfs server 192.168.15.57:/: not responding
Apr 27 17:00:33 dog2 kernel: nfs server 192.168.15.57:/: is alive again
Apr 27 17:40:04 dog2 kernel: nfs server 192.168.15.57:/: not responding
Apr 27 17:40:04 dog2 kernel: nfs server 192.168.15.57:/: is alive again
Apr 27 17:52:04 dog2 kernel: nfs server 192.168.15.57:/: not responding


mount cmd:
mount -t nfs -o
nfsv4,soft,intr,retrans=6,retrycnt=3,nosuid,noexec,nosymfollow,noatime,timeout=200
192.168.15.57:/ /mnt

nfs server config:

nfs_server_enable="YES"
nfsv4_server_enable="YES"
nfsv4_server_only="YES"

nfs_server_flags="-t --minthreads 1 --maxthreads 4 -h 192.168.15.57"
mountd_enable="YES"

cat /etc/exports
V4: /exports
/exports -maproot=nobody:nobody -alldirs

cat /etc/sysctl.conf | grep nfs
vfs.nfsd.server_min_nfsvers=4
vfs.nfsd.server_min_minorversion4=2
#nfsv4 server
vfs.nfs.enable_uidtostring=1
vfs.nfsd.enable_stringtouid=1

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