[Bug 1726504] Re: Was there a change of RemoveIPC semantics in Ubuntu 17.10?

[Renardo]

:I just wrote “Oracle-ignorant” but I think the correct expression is
“Oracle-agnostic”. Sorry. Foreign languages have always been my problem.

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Title:
  Was there a change of RemoveIPC semantics in Ubuntu 17.10?

Status in systemd package in Ubuntu:
  Incomplete

Bug description:
  A few days ago I upgraded my Ubuntu 17.04 to 17.10. Afterwards I found
  that my Oracle XE would no longer start. alert_XE.log said things like

      ORA-27300: OS system dependent operation:semctl failed with status: 22
      ORA-27301: OS failure message: Invalid argument
      ORA-27302: failure occurred at: sskgpwrm1
      ORA-27157: OS post/wait facility removed
      ORA-27300: OS system dependent operation:semop failed with status: 43
      ORA-27301: OS failure message: Identifier removed
      ORA-27302: failure occurred at: sskgpwwait1

  I found that /etc/systemd/logind.conf had the RemoveIPC line commented
  out. When I set RemoveIPC=no (the default is “yes”) and rebooted
  Linux, Oracle XE started fine, as it had before the upgrade. So I
  assume the 17.10 upgrade somehow made a change to the RemoveIPC
  semantics.

  As I found that my previous installation also had a commented
  RemoveRPC it looks like Ubuntu 17.10 changed the default value from
  “no” to “yes”, and so breaks the Oracle XE installation. In this case
  I consider this behavior problematic, it should at least produce a
  clear warning during upgrade.

  If the default value did not change I have no explanation of the
  phenomenon.

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