[Bug 1077386] Re: After upgrading NFS4 server to Ubuntu Quantal, krb5 mounts hang under nfs-utils 1.2.6-3ubuntu2

[Steve Langasek]

Given available resources to work on this package, I'm afraid I would
say that's unlikely.

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Title:
  After upgrading NFS4 server to Ubuntu Quantal, krb5 mounts hang under
  nfs-utils 1.2.6-3ubuntu2

Status in “nfs-utils” package in Ubuntu:
  Fix Released

Bug description:
  This is probably a manifestation of upstream Debian bug:
  http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=682709

  After upgrading my server from Precise Pangolin to Quantal Quetzal,
  the NFS4 service's mounts from clients started to hang.

  Looking at verbose logs of all involved RPC daemons, the problem seems
  to either be with rpc.svcgssd or rpc.mountd, which are contained in
  nfs-kernel-server package. The last lines reported in the verbose
  daemon logs are:

  Nov 10 12:25:26 hostname rpc.svcgssd[1547]: entering poll
  Nov 10 12:25:26 hostname rpc.mountd[1550]: auth_unix_ip: inbuf 'nfsd 192.168.1.123'

  WORKING WORKAROUND:

  Downgrade nfs to the version from Precise Pangolin and prevent it from
  being automatically upgraded to the Quantal version:

  $ wget http://de.archive.ubuntu.com/ubuntu/pool/main/n/nfs-utils/nfs-
  common_1.2.5-3ubuntu3.1_amd64.deb

  $ wget http://de.archive.ubuntu.com/ubuntu/pool/main/n/nfs-utils/nfs-
  kernel-server_1.2.5-3ubuntu3.1_amd64.deb

  $ sudo dpkg -i nfs-common_1.2.5-3ubuntu3.1_amd64.deb nfs-kernel-
  server_1.2.5-3ubuntu3.1_amd64.deb

  $ (echo "nfs-common hold"; echo "nfs-kernel-server hold") | sudo dpkg
  --set-selections

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