Hi!
My computer suffers from high load average when the system is idle,
introduced by commit 44d306e1508fef6fa7a6eb15a1aba86ef68389a6 .
Long story:
2.6.20 and all later versions I've tested, including 2.6.21 and
2.6.22, make the load average high. Even when the computer is totally
idle (I've tested in single user mode), the load average end up
at ~0.30. The computer is still responsive, and the only fault seems
to be the too high load average. All versions up to and including
2.6.19.7 is fine, and don't suffer from the problem.