[Bug 1862657] Re: systemd autopkgtest 'logind' fails when running with linux-kvm

[Dan Streetman]

x, b, and e autopkgtests now pass test 'logind'.
(b and e still fail overall with linux-meta-kvm, but at least the specific logind test passes now).

** Tags removed: verification-needed verification-needed-bionic verification-needed-eoan verification-needed-xenial
** Tags added: verification-done verification-done-bionic verification-done-eoan verification-done-xenial

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https://bugs.launchpad.net/bugs/1862657

Title:
  systemd autopkgtest 'logind' fails when running with linux-kvm

Status in systemd package in Ubuntu:
  Fix Released
Status in systemd source package in Xenial:
  Fix Committed
Status in systemd source package in Bionic:
  Fix Committed
Status in systemd source package in Eoan:
  Fix Committed
Status in systemd source package in Focal:
  Fix Released

Bug description:
  [impact]

  the logind autopkgtest tries to access /sys/power/state, but because
  linux-kvm has CONFIG_PM unset, there is no /sys/power/state file

  [test case]

  check autopkgtest, e.g.:
  https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-eoan/eoan/amd64/s/systemd/20200210_144351_da247@/log.gz

  autopkgtest [13:48:53]: test logind: -----------------------]
  autopkgtest [13:48:53]: test logind:  - - - - - - - - - - results - - - - - - - - - -
  logind               FAIL stderr: grep: /sys/power/state: No such file or directory
  autopkgtest [13:48:53]: test logind:  - - - - - - - - - - stderr - - - - - - - - - -
  grep: /sys/power/state: No such file or directory

  [regression potential]

  regressions would likely involve incorrectly skipped logind test.

  [scope]

  this fails for all releases; Xenial, Bionic, Eoan, and Focal.

  [other info]

  it's unclear if linux-kvm should have CONFIG_PM (and other config)
  enabled or not.

  However, it's not the intention of systemd's autopkgtests to look for
  missing config in the kernel; the test already skips if 'mem' isn't in
  /sys/power/state, so it should also skip if /sys/power/state isn't
  present at all.

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