[Bug 1956787] Re: nfs v3 locking fails - rpc-statd not started after minor upgrade

[Andreas Hasenack]

In Jammy, rpc.statd is started always by default. It can of course be
disabled or masked as usual with systemctl.

** Changed in: nfs-utils (Ubuntu)
       Status: Confirmed => Fix Released

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Title:
  nfs v3 locking fails - rpc-statd not started after minor upgrade

Status in nfs-utils package in Ubuntu:
  Fix Released

Bug description:
  We just upgraded our nfs servers from 5.4.0-72 to 5.4.0-92.

  We are using NFS v3 in a large computer science department, with
  several hundred clients.

  Lots of applications are now failing because locks don't work.

  /var/log/syslog on the client reports lockd not responding. tcpdump
  shows that the client tries to connect to lockd but there is no
  response to the TCP SYN.

  netstat on the server shows some connections open, with lots of bytes
  in the receive queue.

  The problem probably occurs only with lots of clients. I believe any
  typical test would work fine.

  The problem is new. That is, it didn't happen in 5.4.0-72.

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: kernel-common (not installed)
  ProcVersionSignature: Ubuntu 5.4.0-92.103-generic 5.4.157
  Uname: Linux 5.4.0-92-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu27.21
  Architecture: amd64
  CasperMD5CheckResult: pass
  Date: Fri Jan  7 13:07:34 2022
  InstallationDate: Installed on 2020-10-14 (450 days ago)
  InstallationMedia: Ubuntu-Server 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
  SourcePackage: kernel-package
  UpgradeStatus: No upgrade log present (probably fresh install)
  modified.conffile..etc.default.apport: [modified]
  mtime.conffile..etc.default.apport: 2020-10-14T13:53:33.474467

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