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Old 11-06-2010, 07:36 PM
Daniel Lindgren
 
Default Bug#602642: nfs-kernel-server: Crossmnt stopped working after upgrade from Lenny to Squeeze

Package: nfs-kernel-server
Version: 1:1.1.2-6lenny2
Severity: important

Upgraded file server from Lenny to Squeeze. After upgrade NFS clients failed to
access bind mounted subdirectories on NFS server, error message about stale NFS
handle.

Basic setup on "fileserver":

/dev/md0 is mounted at /mnt/md0 in fstab
/mnt/md0/raid is bind mounted at /data/raid in fstab

/etc/exports looks like this:
/data 192.168.0.0/255.255.255.0(ro,no_subtree_check,crossmnt)

NFS clients mount fileserver:/data.

This setup has been used for about a year. After "fileserver" was upgraded to
Squeeze the clients could mount fileserver:/data but not access the raid
subfolder, got an error message about stale NFS handle.

Downgrading nfs-kernel-server and nfs-common to Lenny versions
(1:1.1.2-6lenny2) restored functionality.



-- System Information:
Debian Release: squeeze/sid
APT prefers testing
APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.32-5-amd64 (SMP w/1 CPU core)
Locale: LANG=sv_SE.UTF-8, LC_CTYPE=sv_SE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages nfs-kernel-server depends on:
ii libblkid1 2.17.2-3.3 block device id library
ii libc6 2.11.2-7 Embedded GNU C Library: Shared lib
ii libcomerr2 1.41.12-2 common error description library
ii libgssglue1 0.1-4 mechanism-switch gssapi library
ii libkrb53 1.8.3+dfsg-2 transitional package for MIT Kerbe
ii libnfsidmap2 0.23-2 An nfs idmapping library
ii librpcsecgss3 0.19-2 allows secure rpc communication us
ii libwrap0 7.6.q-19 Wietse Venema's TCP wrappers libra
ii lsb-base 3.2-23.1 Linux Standard Base 3.2 init scrip
ii nfs-common 1:1.1.2-6lenny2 NFS support files common to client
ii ucf 3.0025+nmu1 Update Configuration File: preserv

nfs-kernel-server recommends no packages.

nfs-kernel-server suggests no packages.

-- no debconf information



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Old 11-07-2010, 12:23 PM
Ben Hutchings
 
Default Bug#602642: nfs-kernel-server: Crossmnt stopped working after upgrade from Lenny to Squeeze

On Sat, 2010-11-06 at 21:36 +0100, Daniel Lindgren wrote:
> Package: nfs-kernel-server
> Version: 1:1.1.2-6lenny2
> Severity: important
>
> Upgraded file server from Lenny to Squeeze. After upgrade NFS clients failed to
> access bind mounted subdirectories on NFS server, error message about stale NFS
> handle.
[...]

Were these clients restarted after the file server was upgraded?

Ben.

--
Ben Hutchings
Once a job is fouled up, anything done to improve it makes it worse.
 
Old 11-07-2010, 02:59 PM
Daniel Lindgren
 
Default Bug#602642: nfs-kernel-server: Crossmnt stopped working after upgrade from Lenny to Squeeze

> Were these clients restarted after the file server was upgraded?

Yes. I rebooted them too, didn't help. I have a couple of Debian
clients and a Mac OS X machine, neither could access the raid
directory after upgrade (and reboots). Downgrade solved all problems.

I may have filed the bug for the wrong package, nfs-common has to be
downgraded to make it work. Not sure if the problem is with
nfs-kernel-server or nfs-common or both, but I know that only
downgrading nfs-kernel-server wasn't enough. Perhaps downgrading
nfs-common would have sufficed.

/Daniel



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