Re: [RFC GIT PULL] nohz: Full dynticks rq clock handling
From: Frederic Weisbecker
Date: Thu Apr 11 2013 - 11:11:24 EST
On Wed, Apr 10, 2013 at 12:26:43PM +0200, Peter Zijlstra wrote:
> Another thing I just noticed; our update_curr() assumes its called at
> least once every 4 odd seconds (2^32 ns like).
> update_curr() is 'required' for things like task runtime stats and
> everything that hangs off of that like cputimers etc.
> Now I'm not entirely sure how the nr_running==1 nohz case deals with
> this, but I can imagine it might take a while. In this case we might
> need to 'fix' update_curr() to not asume the time delta fits in 32
Good catch, this is not handled yet.
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