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

[Renardo]

Public bug reported:

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.

** Affects: systemd (Ubuntu)
     Importance: Undecided
         Status: New

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

Status in systemd package in Ubuntu:
  New

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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