On 10/06/2012 01:23 AM, Peter Zijlstra wrote:
On Fri, 2012-10-05 at 10:10 -0700, Jonathan Nieder wrote:
Peter Zijlstra wrote:
On Thu, 2012-10-04 at 15:27 -0700, Greg Kroah-Hartman wrote:

I'm puzzled as well.  Any ideas if I should do anything here or not?

So I think the current v3.5.5 code is fine.

Now I'm puzzled.  You wrote:

| However, since we don't restart the tick, we won't be sampling load muck
| and calling calc_load_exit_idle() from there is bound to confuse state.

Doesn't that mean 900404e5d201 "sched: Add missing call to
calc_load_exit_idle()" which is part of 3.5.5 was problematic?  Or
did I just miscount the number of "not"s?


Argh, yeah, so now I've managed to confuse everyone I'm afraid.

You are right, v3.5.5 has one calc_load_exit_idle() too many, the one in
tick_nohz_update_jiffies() needs to go.

Sorry.. I got entirely confused figuring out wth happened with 3.6.

High loadavg reported with v3.6, and I just checked the upstream code, which puzzled many people. Sorry for that~
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