dx-packages team mailing list archive

[James Hunt <1363134@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

The fix for upstart bug 1357252 has highlighted the fact that systemd-
shim does not support functionality required by logind, namely:

- abandoncgroup (delete if possible)
- stopsession(kill all tasks and remove cgroup)

Because of this, systemd-shim sets the remove-on-empty bit on all
cgroups that are created under the users logind session. As a result,
when an upstart user job running under the upstart session init asks
cgmanager to create a cgroup, that cgroup is created and inherits the
remove-on-empty bit set by systemd-shim.

This can result in failed upstart jobs since when a subsequent job
process (a secondary process that runs as part of a single overall
upstart job) is started by upstart, it may fail to move the pid into the
already-created cgroup since cgmanager may have (just) deleted it.

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: systemd-shim 7-1
ProcVersionSignature: Ubuntu 3.16.0-10.15-generic 3.16.1
Uname: Linux 3.16.0-10-generic x86_64
ApportVersion: 2.14.6-0ubuntu2
Architecture: amd64
CurrentDesktop: Unity
Date: Fri Aug 29 16:21:28 2014
InstallationDate: Installed on 2014-04-11 (139 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Daily amd64 (20140409)
SourcePackage: systemd-shim
UpgradeStatus: Upgraded to utopic on 2014-05-08 (113 days ago)

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


** Tags: amd64 apport-bug utopic

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https://bugs.launchpad.net/bugs/1363134

Title:
  systemd-shim needs to grow support for abandoncgroup and stopsession

Status in “systemd-shim” package in Ubuntu:
  New

Bug description:
  The fix for upstart bug 1357252 has highlighted the fact that systemd-
  shim does not support functionality required by logind, namely:

  - abandoncgroup (delete if possible)
  - stopsession(kill all tasks and remove cgroup)

  Because of this, systemd-shim sets the remove-on-empty bit on all
  cgroups that are created under the users logind session. As a result,
  when an upstart user job running under the upstart session init asks
  cgmanager to create a cgroup, that cgroup is created and inherits the
  remove-on-empty bit set by systemd-shim.

  This can result in failed upstart jobs since when a subsequent job
  process (a secondary process that runs as part of a single overall
  upstart job) is started by upstart, it may fail to move the pid into
  the already-created cgroup since cgmanager may have (just) deleted it.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: systemd-shim 7-1
  ProcVersionSignature: Ubuntu 3.16.0-10.15-generic 3.16.1
  Uname: Linux 3.16.0-10-generic x86_64
  ApportVersion: 2.14.6-0ubuntu2
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Fri Aug 29 16:21:28 2014
  InstallationDate: Installed on 2014-04-11 (139 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Daily amd64 (20140409)
  SourcePackage: systemd-shim
  UpgradeStatus: Upgraded to utopic on 2014-05-08 (113 days ago)

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