Re: v4.10-rc8 (-rc6) boot regression on Intel desktop, does not boot after cold boots, boots after reboot

From: Greg Kroah-Hartman
Date: Thu Feb 16 2017 - 20:11:30 EST


On Thu, Feb 16, 2017 at 09:06:24PM +0100, Pavel Machek wrote:
> On Thu 2017-02-16 20:34:45, Thomas Gleixner wrote:
> > On Thu, 16 Feb 2017, Frederic Weisbecker wrote:
> > > On Thu, Feb 16, 2017 at 10:20:14AM -0800, Linus Torvalds wrote:
> > > > On Thu, Feb 16, 2017 at 10:13 AM, Frederic Weisbecker
> > > > <fweisbec@xxxxxxxxx> wrote:
> > > > >
> > > > > I haven't followed the discussion but this patch has a known issue which is fixed
> > > > > with:
> > > > > 7bdb59f1ad474bd7161adc8f923cdef10f2638d1
> > > > > "tick/nohz: Fix possible missing clock reprog after tick soft restart"
> > > > >
> > > > > I hope this fixes your issue.
> > > >
> > > > No, Pavel saw the problem with rc8 too, which already has that fix.
> > > >
> > > > So I think we'll just need to revert that original patch (and that
> > > > means that we have to revert the commit you point to as well, since
> > > > that ->next_tick field was added by the original commit).
>
> (I already said that elsewhere, but yes, revert of 7bdb59f1ad474b and
> 24b91e360ef5 fixes boot problems for me. Hmm, and 24b9 was marked for
> stable... I don't know how to contact all the stable maintainers, but
> probably it should not go to stable just yet...)

It tried to get into the stable trees, but it broke the build, so it was
dropped. So the stable trees are safe for now.

thanks,

greg k-h