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

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On Wed 2017-02-15 18:23:03, Pavel Machek wrote:
> On Tue 2017-02-14 11:12:26, Linus Torvalds wrote:
> > On Feb 14, 2017 9:59 AM, "Pavel Machek" <pavel@xxxxxx> wrote:
> > 
> > Hi!
> > 
> > > >
> > > > Booting to grub, then hitting ctrl-alt-del is enough to make it work.
> > Ouch.
> > > >
> > > > It happens with current Linus' tree.
> > >
> > > v4.10-rc6-feb3 : broken
> > > v4.9 : ok
> > 
> > I wonder if you could bisect it now that you've figured out the rules for
> > when it breaks...
> 
> I guess that's what I'll need to do. It is my main machine, so it is a
> bit painful.
> 
> Anyway, it seems that "nosmp" makes it hang at similar place, but
> makes it hang reliably, reboot or cold poweroff. So I guess that's
> what I'll use for bisection -- should be possible to do automatically
> that way.

I was mistaken. "nosmp" does not seem to make the hang reliable.

my-4.10-r8+ broken
4.10-rc8 broken
4.10-rc4 broken
4.10-rc3 ok
4.10-rc2 ok?

I started bisect, 168 revisions to go.

								Pavel
								
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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