Bug#1138209: nfs-kernel-server: Parameter RPCNFSDCOUNT from /etc/default/nfs-kernel-server is ignored after Upgrade from Deb12

From	Patrik Schindler <poc@pocnet.net>
Newsgroups	linux.debian.bugs.dist, linux.debian.kernel
Subject	Bug#1138209: nfs-kernel-server: Parameter RPCNFSDCOUNT from /etc/default/nfs-kernel-server is ignored after Upgrade from Deb12
Date	2026-05-29 13:50 +0200
Message-ID	<N03SV-8L75-7@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

Cross-posted to 2 groups.

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Package: nfs-kernel-server
Version: 1:2.8.3-1
Severity: normal

Dear Maintainer,

I'm using SysVrc and updated an NFS server from Deb12 to Deb13. This is a
machine which heavy load due to Veeam Backup & Replication repositories.

To keep up, I had changed /etc/default/nfs-kernel-server to increase
RPCNFSDCOUNT to a number high enough to stop syslog messages about
incomplete data transfers.

Since Deb13, RPCNFSDCOUNT is no longer used. Culprit is that in
/etc/init.d/nfs-kernel-server lines 99 to 101, /sbin/rpc.nfsd is
no longer given the $RPCNFSDCOUNT variable, as it was in the Debian 12
initscript.


-- Package-specific info:
-- rpcinfo --
   program vers proto   port  service
    100000    4   tcp    111  portmapper
    100000    3   tcp    111  portmapper
    100000    2   tcp    111  portmapper
    100000    4   udp    111  portmapper
    100000    3   udp    111  portmapper
    100000    2   udp    111  portmapper
    100024    1   udp  59890  status
    100024    1   tcp  47985  status
    100003    3   tcp   2049  nfs
    100003    4   tcp   2049  nfs
    100227    3   tcp   2049  nfs_acl
    100021    1   udp  36247  nlockmgr
    100021    3   udp  36247  nlockmgr
    100021    4   udp  36247  nlockmgr
    100021    1   tcp  45365  nlockmgr
    100021    3   tcp  45365  nlockmgr
    100021    4   tcp  45365  nlockmgr
    100005    1   udp  40951  mountd
    100005    1   tcp  53591  mountd
    100005    2   udp  56325  mountd
    100005    2   tcp  36969  mountd
    100005    3   udp  51628  mountd
    100005    3   tcp  50041  mountd
-- /etc/default/nfs-kernel-server --
RPCNFSDCOUNT=2000
RPCNFSDPRIORITY=0
RPCNFSDOPTS=""
RPCMOUNTDOPTS="--manage-gids"
NEED_SVCGSSD=""
RPCSVCGSSDOPTS=""

-- System Information:
Debian Release: 13.5
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 6.12.90+deb13.1-amd64 (SMP w/12 CPU threads; PREEMPT)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: sysvinit (via /sbin/init)

Versions of packages nfs-kernel-server depends on:
ii  keyutils                1.6.3-6
ii  libblkid1               2.41-5
ii  libc6                   2.41-12+deb13u3
ii  libcap2                 1:2.75-10+deb13u1+b1
ii  libevent-core-2.1-7t64  2.1.12-stable-10+b1
ii  libnl-3-200             3.7.0-2
ii  libnl-genl-3-200        3.7.0-2
ii  libreadline8t64         8.2-6
ii  libsqlite3-0            3.46.1-7+deb13u1
ii  libtirpc3t64            1.3.6+ds-1
ii  libuuid1                2.41-5
ii  libwrap0                7.6.q-36
ii  libxml2                 2.12.7+dfsg+really2.9.14-2.1+deb13u2
ii  netbase                 6.5
ii  nfs-common              1:2.8.3-1
ii  ucf                     3.0052

Versions of packages nfs-kernel-server recommends:
ii  python3       3.13.5-1
pn  python3-yaml  <none>

Versions of packages nfs-kernel-server suggests:
ii  procps  2:4.0.4-9

-- Configuration Files:
/etc/init.d/nfs-kernel-server changed:
DESC="NFS kernel daemon"
PREFIX=/usr
[ -x $PREFIX/sbin/rpc.nfsd    ] || exit 0
[ -x $PREFIX/sbin/rpc.mountd  ] || exit 0
[ -x $PREFIX/sbin/exportfs    ] || exit 0
DEFAULTFILE=/etc/default/nfs-kernel-server
RPCNFSDPRIORITY=0
NEED_SVCGSSD=no
PROCNFSD_MOUNTPOINT=/proc/fs/nfsd
if [ -f $DEFAULTFILE ]; then
    . $DEFAULTFILE
fi
. /lib/lsb/init-functions
do_modprobe() {
    if [ -x /sbin/modprobe ] && [ -f /proc/modules ]
    then
        modprobe -q "$1" || true
    fi
}
do_mount() {
    if ! grep -E -qs "$1\$" /proc/filesystems
    then
	return 1
    fi
    if ! mountpoint -q "$2"
    then
	mount -t "$1" "$1" "$2"
	return
    fi
    return 0
}
case "$1" in
  start)
	export_files="/etc/exports"
	for file in /etc/exports.d/*.exports ; do
		if [ -f "$file" ]; then
			export_files="$export_files $file"
		fi
	done
	# shellcheck disable=SC2086
	if [ -f /etc/exports ] && grep -q '^[[:space:]]*[^#]*/' $export_files
	then
		do_modprobe nfsd
		# See if our running kernel supports the NFS kernel server
		if ! grep -E -qs "[[:space:]]nfsd\$" /proc/filesystems; then
			log_warning_msg "Not starting $DESC: no support in current kernel"
			exit 0
		fi
		
		do_mount nfsd $PROCNFSD_MOUNTPOINT || NEED_SVCGSSD=no
		log_action_begin_msg "Exporting directories for $DESC"
		$PREFIX/sbin/exportfs -r
		RET=$?
		if [ $RET != 0 ]; then
			log_action_end_msg $RET
			exit $RET
		fi
		log_action_end_msg 0
		log_daemon_msg "Starting $DESC"
		log_progress_msg "nfsd"
		
		# See if rpcbind is running
		$PREFIX/sbin/rpcinfo -p >/dev/null 2>&1
		RET=$?
		if [ $RET != 0 ]; then
		    echo
		    log_warning_msg "Not starting: portmapper is not running"
		    exit 0
		fi
		start-stop-daemon --start --oknodo --quiet \
		    --nicelevel $RPCNFSDPRIORITY \
		    --exec $PREFIX/sbin/rpc.nfsd -- $RPCNFSDCOUNT
		RET=$?
		if [ $RET != 0 ]; then
			log_end_msg $RET
			exit $RET
		fi
		# make sure 127.0.0.1 is a valid source for requests
		ClearAddr=
		if [ -f /proc/net/rpc/auth.unix.ip/channel ]
		then
		    grep -Fqs 127.0.0.1 /proc/net/rpc/auth.unix.ip/content || {
			echo "nfsd 127.0.0.1 2147483647 localhost" >/proc/net/rpc/auth.unix.ip/channel
			ClearAddr=yes
		    }
		fi
		[ -z "$ClearAddr" ] || echo "nfsd 127.0.0.1 1" >/proc/net/rpc/auth.unix.ip/channel
	
	        if [ "$NEED_SVCGSSD" = "yes" ]; then
			do_modprobe rpcsec_gss_krb5
			log_progress_msg "svcgssd"
			start-stop-daemon --start --oknodo --quiet \
			    --exec $PREFIX/sbin/rpc.svcgssd
			RET=$?
			if [ $RET != 0 ]; then
				log_end_msg $RET
				exit $RET
			fi
		fi
		log_progress_msg "mountd"
		start-stop-daemon --start --oknodo --quiet \
		    --exec $PREFIX/sbin/rpc.mountd
		RET=$?
		if [ $RET != 0 ]; then
			log_end_msg $RET
			exit $RET
		fi
		log_end_msg 0
	else
		log_warning_msg "Not starting $DESC: no exports"
	fi
	;;
  stop)
	log_daemon_msg "Stopping $DESC"
	log_progress_msg "mountd"
	start-stop-daemon --stop --oknodo --quiet \
	    --name rpc.mountd --user 0
	RET=$?
	if [ $RET != 0 ]; then
		log_end_msg $RET
		exit $RET
	fi
	if [ "$NEED_SVCGSSD" = "yes" ]; then
		log_progress_msg "svcgssd"
		start-stop-daemon --stop --oknodo --quiet \
		    --name rpc.svcgssd --user 0
		RET=$?
		if [ $RET != 0 ]; then
			log_end_msg $RET
			exit $RET
		fi
	fi
	log_progress_msg "nfsd"
	start-stop-daemon --stop --oknodo --quiet \
	    --name nfsd --user 0 --signal 2
	RET=$?
	if [ $RET != 0 ]; then
		log_end_msg $RET
		exit $RET
	fi
	log_end_msg 0
	log_action_begin_msg "Unexporting directories for $DESC"
	$PREFIX/sbin/exportfs -au
	RET=$?
	if [ $RET != 0 ]; then
		log_action_end_msg $RET
		exit $RET
	fi
	log_action_end_msg 0
	if mountpoint -q $PROCNFSD_MOUNTPOINT
	then
	    $PREFIX/sbin/exportfs -f
	fi
	;;
  status)
	status_of_proc nfsd nfsd
	exit $?
	;;
  reload | force-reload)
	log_begin_msg "Re-exporting directories for $DESC..."
	$PREFIX/sbin/exportfs -r
	RET=$?
	log_end_msg $RET
	exit $RET
	;;
  restart)
	$0 stop
	sleep 1
	$0 start
	;;
  *)
	log_success_msg "Usage: nfs-kernel-server {start|stop|status|reload|force-reload|restart}"
	exit 1
	;;
esac
exit 0


-- no debconf information

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Bug#1138209: nfs-kernel-server: Parameter RPCNFSDCOUNT from /etc/default/nfs-kernel-server is ignored after Upgrade from Deb12 Patrik Schindler <poc@pocnet.net> - 2026-05-29 13:50 +0200
  Bug#1138209: nfs-kernel-server: Parameter RPCNFSDCOUNT from /etc/default/nfs-kernel-server is ignored after Upgrade from Deb12 Ben Hutchings <ben@decadent.org.uk> - 2026-05-29 22:50 +0200
    Bug#1138209: nfs-kernel-server: Parameter RPCNFSDCOUNT from /etc/default/nfs-kernel-server is ignored after Upgrade from Deb12 Ben Hutchings <ben@decadent.org.uk> - 2026-05-29 23:00 +0200
    Bug#1138209: nfs-kernel-server: Parameter RPCNFSDCOUNT from /etc/default/nfs-kernel-server is ignored after Upgrade from Deb12 Patrik Schindler <poc@pocnet.net> - 2026-05-29 23:20 +0200
      Bug#1138209: nfs-kernel-server: Parameter RPCNFSDCOUNT from /etc/default/nfs-kernel-server is ignored after Upgrade from Deb12 Ben Hutchings <ben@decadent.org.uk> - 2026-05-29 23:30 +0200
  Bug#1138209: marked as done (nfs-kernel-server: Parameter  RPCNFSDCOUNT from /etc/default/nfs-kernel-server is ignored after Upgrade  from Deb12) "Debian Bug Tracking System" <owner@bugs.debian.org> - 2026-05-29 22:50 +0200

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