nfs-utils 1.0.5 break amd?

[Marc Schmitt <mschmitt@inf.ethz.ch>]

Hi all,

After upgrading a RedHat 7.3 box with kernel 2.4.18-27.7xsmp from
nfs-utils 1.0.3 to 1.0.5, amd stopped working.

On the client (am-utils-6.0.7-4, nfs-utils-0.3.3-6.73), I issue:

ls /net/<fileserver>

With 1.0.3, I get the correct directory listing under /net/<fileserver>

With 1.0.5, I get:
ls: /net/<fileserver>: Input/output error


On the server, with 1.0.3, I'd see an entry for every export in
/etc/exports in /var/log/messages, mount refused or granted, according
to the export permissions. 
With 1.0.5, I get one single entry:
Jul 31 19:14:34 <fileserver> rpc.mountd: export request from <client>


For 1.0.5, the client reports the following errors in /var/log/messages:
Jul 31 19:24:04 <client> amd[1072]: No fs type specified (key =
"/defaults", map = ""root"")
Jul 31 19:24:04 <client> amd[1072]: get_nfs_version NFS(3,tcp) failed
for <fileserver>: : RPC: Program not registered
Jul 31 19:24:04 <client> amd[1072]: get_nfs_version: returning (3,udp)
on host <fileserver>
Jul 31 19:24:04 <client> amd[1072]: Using NFS version 3, protocol udp on
host <fileserver>
Jul 31 19:24:04 <client> amd[1072]: Flushed /net/<fileserver>; dependent
on <fileserver>
Jul 31 19:24:04 <client> amd[1072]: recompute_portmap: NFS version 3
Jul 31 19:24:04 <client> amd[1072]: Using MOUNT version: 3
Jul 31 19:24:04 <client> amd[1072]: get_nfs_version NFS(3,tcp) failed
for <fileserver>: : RPC: Program not registered
Jul 31 19:24:04 <client> amd[1072]: get_nfs_version: returning (3,udp)
on host <fileserver>
Jul 31 19:24:04 <client> amd[1072]: Using NFS version 3, protocol udp on
host <fileserver>
Jul 31 19:24:04 <client> amd[25799]: amfs_host_fmount: NFS version 3
Jul 31 19:24:04 <client> amd[25799]: host_fmount rpc failed: RPC: Remote
system error
Jul 31 19:24:04 <client> amd[1072]: /net/<fileserver>: mount
(amfs_auto_cont): Input/output error

Here is my /etc/sysconfig/nfs on the server:
# For more information on nfs tuning, please see the NFS-HOWTO
# http://nfs.sourceforge.net/nfs-howto/

# Pass any additional options for mountd.
# MOUNTD_OPTIONS=

# Pin mountd to a given port rather than random one from portmapper
# MOUNTD_PORT=

# Don't advertise TCP for mount.
MOUNTD_TCP=no

# NFS V3
MOUNTD_NFS_V3=yes

# NFS V2
MOUNTD_NFS_V2=yes

# The number of open file descriptors
#MOUNTD_OPEN_FILES=128

# Pass the number of instances of nfsd (8 is default; 16 or more
# might be needed to handle heavy client traffic)
NFSDCOUNT=32

# Increase the memory limits on the socket input queues for
# the nfs processes .. NFS  benchmark SPECsfs demonstrate a
# need for a larger than default size (64kb) .. setting
# TUNE_QUEUE to yes will set the values to 256kb.
TUNE_QUEUE="yes"
NFS_QS=262144


Any idea what could be wrong? TIA

Regards,
    Marc





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