SRU Justification:

Impact: Audio and Video artifacts while system is under load, such as
with trackerd or updatedb.

Fix Description: The 8.04 scheduler algorithm selected for x86/x86_64
-generic is USER_SCHED.  CGROUP_SCHED is much better at load leveling
between process groups. The -server flavour has used CGROUP_SCHED from
the beginning and has been shown to not have this issue.

Patch: http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-
hardy.git;a=commit;h=273f7b551a420580307fa414fe616f0e276a4035

TEST CASE: Start a test sound using gnome-sound-properties
(System/Preferences/Sound, select Sound Events Test). As another user
(root) run 'find / -type f | xargs grep foobar'. Audio clicks and pops
can be heard in some cases.

-- 
Kernel should use CONFIG_FAIR_CGROUP_SCHED
https://bugs.launchpad.net/bugs/188226
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