--- Begin Message ---
- To: Debian Bug Tracking System <submit@bugs.debian.org>
- Subject: nfs-common: utils/mount/nfsumount.c incorrectly rpc pinging remote rpc.mountd on NFSv4 umounts
- From: Martin Millnert <martin@millnert.se>
- Date: Sun, 05 Jan 2014 23:11:23 +0100
- Message-id: <20140105221123.29070.35508.reportbug@anticimex.gbg.millnert.se>
Package: nfs-common
Version: 1:1.2.6-4
Severity: normal
Dear Maintainer,
I ran into a NFS umount bug, verified and patched in Redhat as per [0].
In my example setup, I have a Wheezy NFS server, using NFSv4 exports, to
a Wheezy client.
When I umount a mount, I receive precisely the same error line on the
server as in [0], e.g.:
Nov 14 09:35:16 saga mountd[3128]: refused unmount request from
cynosure.cora.nwra.com for /data1 (/): not exported
Precisely just as in that case, a RPC packet (NFSv2/v3) is incorrectly sent
from the client to the server.
My export options on the server are e.g.:
/exports/ x.x.x.x(fsid=0,insecure,no_subtree_check,no_root_squash,crossmnt,rw)
[...]
/exports/foo/bar x.x.x.x(fsid=0,insecure,no_subtree_check,no_root_squash,crossmnt,rw)
My mount options, in /etc/fstab, on the client are:
x.x.x.x.:/foo/bar /mnt/bar nfs4 ro,bg,soft,intr,_netdev,auto 0 2
In [0] (comment 7) there is a proposed patch for RH's nfs-utils.
Debian unstable nfs-common (1:1.2.8-4) lacks the patch, and I'd like to
leave it to professionals to verify whether the small changes of the RH
patch can be used for Debian's nfs-common.
Best regards,
Martin
[0] https://bugzilla.redhat.com/show_bug.cgi?id=215553#c7
-- Package-specific info:
-- rpcinfo --
program vers proto port
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 44435 status
100024 1 tcp 41798 status
-- /etc/default/nfs-common --
NEED_STATD=
STATDOPTS=
NEED_IDMAPD=
NEED_GSSD=
-- /etc/idmapd.conf --
[General]
Verbosity = 0
Pipefs-Directory = /var/lib/nfs/rpc_pipefs
[Mapping]
Nobody-User = nobody
Nobody-Group = nogroup
/etc/fstab retained.
/proc/mounts retained.
-- System Information:
Debian Release: 7.2
APT prefers stable
APT policy: (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 3.2.0-4-amd64 (SMP w/1 CPU core)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages nfs-common depends on:
ii adduser 3.113+nmu3
ii initscripts 2.88dsf-41+deb7u1
ii libc6 2.13-38
ii libcap2 1:2.22-1.2
ii libcomerr2 1.42.5-1.1
ii libdevmapper1.02.1 2:1.02.74-8
ii libevent-2.0-5 2.0.19-stable-3
ii libgssglue1 0.4-2
ii libk5crypto3 1.10.1+dfsg-5+deb7u1
ii libkeyutils1 1.5.5-3
ii libkrb5-3 1.10.1+dfsg-5+deb7u1
ii libmount1 2.20.1-5.3
ii libnfsidmap2 0.25-4
ii libtirpc1 0.2.2-5
ii libwrap0 7.6.q-24
ii lsb-base 4.1+Debian8+deb7u1
ii rpcbind 0.2.0-8
ii ucf 3.0025+nmu3
Versions of packages nfs-common recommends:
ii python 2.7.3-4+deb7u1
Versions of packages nfs-common suggests:
pn open-iscsi <none>
pn watchdog <none>
-- no debconf information
--- End Message ---