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[Bug 1368922] Re: nfsd stops running shortly after clients connect

 

we downgraded kernel  from :

GNU/Linux 3.2.0-67-generic x86_64

 to

GNU/Linux 3.2.0-61-generic x86_64

and we no longer have this issue .

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https://bugs.launchpad.net/bugs/1368922

Title:
  nfsd stops running shortly after clients connect

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  Ubuntu 14.04.1 server fully updated. nfs-kernel-server stops working,
  hanging clients who have mounted shares. Sudo service nfs-kernel-
  server restart will appear to work, but sudo service nfs-kernel-server
  status will show nfsd not running. It can't be restarted successfully
  unless rebooted. nfsd will stay up until clients mount and use the
  share. dmesg shows tainted kernel. The only way to stop this behavior
  was to edit /etc/default/nfs-kernel-server RPCMOUNTDOPTS="--manage-
  gids --no-nfs-version 4" and edit  fstab on the clients to use vers=3
  as a mount option.

  Testing now to see whether all that's required to trigger nfs-kernel-
  server crash is a client w/out vers=3 mount option.

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