Re: [rfc][patch] store-free path walking

Nick Piggin
2009-10-09T04:05:31Z

On Thu, Oct 08, 2009 at 08:00:45PM +0200, Peter Zijlstra wrote:
> On Thu, 2009-10-08 at 15:30 +0200, Jens Axboe wrote:
> >
> > IIRC, there was a bug with thread accounting very recently. Why would it
> > not hit -rc3 alone, though? Does look fishy, though.
>
> That was caused by:
> def0a9b2573e00ab0b486cb5382625203ab4c4a6 sched_clock: Make it NMI safe
>
> And was fixed by:
> 152f9d0710a62708710161bce1b29fa8292c8c11 sched_clock: Fix
> atomicity/continuity bug by using cmpxchg64()
>
> Which is in -rc3

Well what ever is happening here still happens with post-rc3 kernels.