Re: [RFC][PATCH 0/3] sched: skip_clock_update madness

Peter Zijlstra
2015-01-05T11:51:11Z

On Mon, Jan 05, 2015 at 11:49:09AM +0100, Mike Galbraith wrote:
> On Mon, 2015-01-05 at 11:18 +0100, Peter Zijlstra wrote:
> > Hi,
> >
> > So the big lockup thread got me looking at the skip_clock_update stuff again
> > and here's what I came up with.
> >
> > It seems to build a kernel without generating lockdep splats.
> >
> > Mike can you see if it cures the wobblies you were seeing?
>
> Nope, those hiccups were production IO beasts from hell staying in the
> kernel for ages at a time. Watchdog being falsely credited with what is
> usually dinky wakeup -> switch delta throttled it effectively forever.

OK, It's Monday and I'm still trying to bootstrap my post xmas brain. Is
that: Nope - can't check, or: Nope - doesn't fix wobblies ?