[Bug 1309025] Re: systemd-logind assert failure: cgmanager-client.c:6322: Assertion failed in cgmanager_list_children_sync: proxy != NULL

[Serge Hallyn]

Thanks - so psivaa and dino99 both no longer see this issue.  That
leaves pitti, who has a somewhat nonstandard system.  Do you still see
this crash, after uninstalling cgroup-lite?

Having cgroup-lite installed shouldn't really affect this.  If it does
(through a race in mounting /sys/fs/cgroup) we obviously must address
it.

It does seem just as likely that the thing we're racing against is
systemd.  Although IIUC systemd mounts cgroups before firing off any
daemons, so that race should not exist.

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Title:
  systemd-logind assert failure: cgmanager-client.c:6322: Assertion
  failed in cgmanager_list_children_sync: proxy != NULL

Status in “cgmanager” package in Ubuntu:
  Confirmed
Status in “systemd” package in Ubuntu:
  Confirmed

Bug description:
  Occurred after a dist-upgrade, reboot and logging in.

  Any needed logs will be added later

  ProblemType: Crash
  DistroRelease: Ubuntu 14.04
  Package: systemd-services 204-5ubuntu20
  ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
  Uname: Linux 3.13.0-24-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3
  Architecture: amd64
  AssertionMessage: cgmanager-client.c:6322: Assertion failed in cgmanager_list_children_sync: proxy != NULL
  Date: Thu Apr 17 14:53:58 2014
  ExecutablePath: /lib/systemd/systemd-logind
  InstallationDate: Installed on 2012-10-08 (555 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Beta amd64 (20121008)
  ProcCmdline: /lib/systemd/systemd-logind
  ProcEnviron:
   TERM=linux
   PATH=(custom, no user)
  Signal: 6
  SourcePackage: systemd
  StacktraceTop:
   cgmanager_list_children_sync () from /lib/x86_64-linux-gnu/libcgmanager.so.0
   ?? ()
   ?? ()
   ?? ()
   ?? ()
  Title: systemd-logind assert failure: cgmanager-client.c:6322: Assertion failed in cgmanager_list_children_sync: proxy != NULL
  UpgradeStatus: Upgraded to trusty on 2013-10-26 (172 days ago)
  UserGroups: utah

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