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

From: Pavel Machek
Date: Thu Feb 16 2017 - 14:06:12 EST


On Thu 2017-02-16 18:25:35, Pavel Machek wrote:
> Hi!
>
> > > > 4.10-rc4 broken
> > > > 4.10-rc3 ok
> > >
> > > Hmm. If those actually end up being reliable, then there's not a whole
> > > lot in between them wrt PCI or USB.
> > >
> > > What looked like the most likely candidate seems to be xhci-specific, though.
> > >
> > > But maybe it's something that isn't directly in drivers/{pci,usb}/ and
> > > just interacts badly.
> >
> > Ok. I _hope_ my tests are ok. Bisect log so far is:
>
> And the winner is:
>
> pavel@half:/data/l/linux$ git bisect bad
> 24b91e360ef521a2808771633d76ebc68bd5604b is the first bad commit
> commit 24b91e360ef521a2808771633d76ebc68bd5604b
> Author: Frederic Weisbecker <fweisbec@xxxxxxxxx>
> Date: Wed Jan 4 15:12:04 2017 +0100
>
> nohz: Fix collision between tick and other hrtimers
>

I had to revert 7bdb59f1ad474bd7161adc8f923cdef10f2638d1, too,
otherwise -rc8 does not compile.

With 24b91e360ef521a28087716 and 7bdb59f1ad474 reverted, it seems to
boot ok. (I did few tries.)

Best regards,
Pavel

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

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