Package: nfs-kernel-server
Version: 1:1.3.4-2.1
Severity: critical
Justification: causes serious data loss
Dear Maintainer,
NFS directory exported for local network host, and mounted by client.
After few days normal workload that share on client side became
inaccessible.
syslog on client side shows: nfs: server <server_ip> not responding,
still trying
Tried to mount that share from NFS-server itself but it hangs for
timeout value(5 min) and report about that:
$ mount.nfs: Connection timed out
Tried to restart nfs-kernel-server.service but it is not gives any
positive result. Tried to kill nfsd processed by -9 and PID but it does
not kills any of them. journalctl show nothing suspicious.
Problem get resolved only after reboot of the server each time.
Changing kernel to one from backport repository did not helped.
-- 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
100005 1 udp 42805 mountd
100005 1 tcp 42241 mountd
100005 2 udp 44844 mountd
100005 2 tcp 51819 mountd
100005 3 udp 52308 mountd
100005 3 tcp 54731 mountd
100003 3 tcp 2049 nfs
100227 3 tcp 2049
100003 3 udp 2049 nfs
100227 3 udp 2049
100021 1 udp 46342 nlockmgr
100021 3 udp 46342 nlockmgr
100021 4 udp 46342 nlockmgr
100021 1 tcp 41403 nlockmgr
100021 3 tcp 41403 nlockmgr
100021 4 tcp 41403 nlockmgr
-- /etc/default/nfs-kernel-server --
RPCNFSDCOUNT=8
RPCNFSDPRIORITY=0
RPCMOUNTDOPTS="--manage-gids --no-nfs-version 4"
RPCNFSDOPTS="--no-nfs-version 4"
NEED_SVCGSSD=""
RPCSVCGSSDOPTS=""
-- /etc/exports --
/srv/backups 10.196.1.224/27(rw,sync,no_subtree_check)
-- /proc/fs/nfs/exports --
# Version 1.1
# Path Client(Flags) # IPs
-- System Information:
Debian Release: 9.4
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 4.9.0-6-amd64 (SMP w/4 CPU cores)
Locale: LANG=ru_RU.UTF-8, LC_CTYPE=ru_RU.UTF-8 (charmap=UTF-8),
LANGUAGE=ru_RU.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages nfs-kernel-server depends on:
ii init-system-helpers 1.48
ii keyutils 1.5.9-9
ii libblkid1 2.29.2-1+deb9u1
ii libc6 2.24-11+deb9u3
ii libcap2 1:2.25-1
ii libsqlite3-0 3.16.2-5+deb9u1
ii libtirpc1 0.2.5-1.2
ii libwrap0 7.6.q-26
ii lsb-base 9.20161125
ii netbase 5.4
ii nfs-common 1:1.3.4-2.1
ii ucf 3.0036
nfs-kernel-server recommends no packages.
nfs-kernel-server suggests no packages.
-- no debconf information
