[Yaird-devel] Bug#372834: yaird: nfsmount timeout with nfsstart

[Miguel Yarza Herrero]

Package: yaird
Version: 0.0.12-14
Severity: normal

Hi there, I have a client netbooting from a server with nfs root.
The system works correctly with nfsstart yaird but the nfsmount timeouts
under some circumstances.

If I boot the client right after "/etc/init.d/nfs-kernel-server
restart" on the server then:
manual copy from client boot screen:
trynfs: starting nfsmount -o rsize=8192,wsize=8192
192.168.1.179:/media/clients/pvrzabala/root /mnt
nfs: server 192.168.1.179 not responding, timed out
nfs: server 192.168.1.179 not responding, timed out
mount: input/output error
sort read: 0 < 28
switching root ...
/usr/lib/yaird/exec/run_init: current directory on the same filesystem
as the root : Success
kernel panic - not syncing: Attempted to kill init

daemon.log in the server with RPCMOUNTDOPTS="--debug all" in
/etc/default/nfs-kernel-server:
Jun 12 02:51:01 topocasa in.tftpd[13181]: tftp: client does not accept
options
Jun 12 02:51:05 topocasa mountd[13179]:
MNT3(/media/clients/pvrzabala/root) called
Jun 12 02:51:05 topocasa mountd[13179]: authenticated mount request
from pvrzabala.zabala17.local:984 for /media/clients/pvrzabala/root
(/media)

If I reboot the client shortly after the error, the mount is correct
and the system works flawlesly.
If I wait some time (not measured) between the error and the reboot I
get the error again.
If I reboot the client after a successfull boot the mount is correct
too.
If I boot the client some time (not measured) after the last successful
boot, without restarting the nfs server, I get the error.
The last error is the common behavior in my system, it is a mythtv
client booting from the server, I boot it everyday when i got home from
work and the first boot always gives the error, then I shut down the
client and boot it again and works, so if the boot is 12 hours away
from last boot i get the error, although i think the period is much
shorter, maybe half an hour or some minutes, i will measure it if it is
important.

I think the error is related with Bug #19196: "Mysterious NFS mount
timeouts..." in Ubuntu
    https://launchpad.net/distros/ubuntu/breezy/+source/initramfs- 
tools/+bug/19196
    they resolved it changing from nfsmount to mount.

Thank you for your work and your attention

         Miguel Yarza

-- System  
Information:                                                             
                                     
Client:
Debian Release: testing/unstable
   APT prefers unstable
   APT policy: (500, 'unstable')
Architecture: i386 (i686)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.16-2-686
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)

Versions of packages yaird depends on:
ii  cpio                         2.6-11      GNU cpio -- a program to  
manage ar
ii  dash                         0.5.3-2     The Debian Almquist Shell
ii  libc6                        2.3.6-15    GNU C Library: Shared  
libraries
ii  libhtml-template-perl        2.8-1       HTML::Template : A  
module for usin
ii  libparse-recdescent-perl     1.94.free-1 Generates recursive- 
descent parser
ii  perl                         5.8.8-3     Larry Wall's Practical  
Extraction

yaird recommends no packages.

-- no debconf  
information                                                              
                                 

Server:
Debian Release: testing/unstable
Kernel: Linux 2.6.16-2-k7
nfs-common              1:1.0.8-7
nfs-kernel-server       1:1.0.8-7
libc6                   2.3.6-7