cgroup-bin default configuration breaks suspend

[steubens]

similar to this bug https://bugs.launchpad.net/ubuntu/+source/libcgroup/+bug/693594

cgroup-bin moves kernel threads into groups without resources to get their job done (which isn't wrong, it's doing what it's told to)

this leads to suspend working once, resuming working once; then the machine not finishing the second suspend, and the laptop quickly getting very hot (like all cpu cores are going at it 100%)

i did not track down exactly what thread needed the resources to fix this

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: cgroup-bin (not installed)
ProcVersionSignature: Ubuntu 2.6.37-12.26-generic 2.6.37
Uname: Linux 2.6.37-12-generic x86_64
Architecture: amd64
Date: Fri Feb 4 08:01:24 2011
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.utf8
 SHELL=/bin/bash
SourcePackage: libcgroup

[steubens (steubens)]

as in the related bug i posted, and this https://lkml.org/lkml/2011/1/4/313

offlining and stopping a cpu, bringing it back up are steps also taken during a suspend/resume cycle if theres more than one cpu

[Serge Hallyn (serge-hallyn)]

Thanks for reporting this bug and helping to make Ubuntu better.

I am marking this Confirmed based on the lkml thread.

[Serge Hallyn (serge-hallyn)]

I considered not marking this a dup of bug 693594, because it could presumably be worked around in suspend/resume hooks. But I think I'l do it anyway since the right fix in libcgroup is obvious. (I'm just not sure offhand how easy it will be to actually do).