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Re: Failed to migrate controller cgroups

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On Wed, Jan 06, 2021 at 10:35:00AM +0000, Thomas Pircher wrote:
> Michael Grant wrote:
> > I'm seeing warnings like this in my logs:
> > 
> > Jan  3 04:48:49 bottom systemd[3436917]: -.slice: Failed to migrate controller cgroups from
> > +/user.slice/user-108.slice/user@108.service, ignoring: Permission denied
> 
> I take it you are using Debian testing and systemd 247.1?
> Try setting systemd.unified_cgroup_hierarchy=true in your kernel boot
> arguments, as suggested here[1].
> 
> Thomas
> 
> [1] https://bbs.archlinux.org/viewtopic.php?id=261330

Yes, it's true, I'm using 'testing' and yes, "apt-policy systemd" reports I a have systemd 247.1-3+deb11u1.

I'm using Linode.  I never saw a place to set these params in Linode and sure enough there doesn't appear to be.  Is there some way to set this without it needing to pass to the kernel as command line args at boot time?

Perhaps it's ok to just ignore this for now and it will get resolved eventually.  Any idea what problems this might be causing?  I haven't noticed anything.

Thanks for pointing me to that, I had not found that despite searching multiple times over the last couple weeks!

Michael Grant

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Thread

Failed to migrate controller cgroups Michael Grant <mgrant@grant.org> - 2021-01-06 11:30 +0100
  Re: Failed to migrate controller cgroups Thomas Pircher <thp.debian@p5r.uk> - 2021-01-06 11:50 +0100
    Re: Failed to migrate controller cgroups Michael Grant <mgrant@grant.org> - 2021-01-06 12:30 +0100
      Re: Failed to migrate controller cgroups Thomas Pircher <thp.debian@p5r.uk> - 2021-01-06 13:20 +0100
      Re: Failed to migrate controller cgroups Andrei POPESCU <andreimpopescu@gmail.com> - 2021-01-06 15:50 +0100
    Re: Failed to migrate controller cgroups Thomas Pircher <thp.debian@p5r.uk> - 2021-01-06 22:50 +0100

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