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

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Hi!

> > > > > Aha. So it looks difference is probably in "where is keyboard plugged
> > > > > in" but in "reboot" vs. "cold boot". I did not do a cold boot in quite
> > > > > a while :-(.
> > > > > 
> > > > > 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
> > > > (v4.6 : ok)
> v4.10-rc1 seems to work.

v4.10-rc3: ok
v4.10-rc5: bad, I get some kind of backtrace? Next boot results in
hang. It boots ok twice in between.
v4.10-rc6: ok ?!
34e00accf612bc5448ae709245c2b408edf39f46 : ok?
v4.10-rc6-feb3: ok?! (with config.ok, and with original config. Hmm?)

This machine was pretty reliable (except rowhammer), but I admit their
EC code may leave something to be desired. Sometimes it runs without
power LED lit (usually after strange crashes), sometimes _two_ long
presses are neccessary to power it off.

So... yesterday it hung on cold boot, but not on reboot. Verified 5
times or more. Today, I can't reproduce the hang. Strange :-(.

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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v4.10-rc6 boot regression on Intel desktop, maybe related to EHCI  hadnoff? Pavel Machek <pavel@ucw.cz> - 2017-02-03 20:10 +0100
  Re: v4.10-rc6 boot regression on Intel desktop, maybe related to  EHCI hadnoff? Alan Stern <stern@rowland.harvard.edu> - 2017-02-03 20:30 +0100
    Re: v4.10-rc6 boot regression on Intel desktop, does not boot after  cold boots, boots after reboot Pavel Machek <pavel@ucw.cz> - 2017-02-03 22:00 +0100
      Re: v4.10-rc6 boot regression on Intel desktop, does not boot after  cold boots, boots after reboot Pavel Machek <pavel@ucw.cz> - 2017-02-03 22:20 +0100
        Re: v4.10-rc6 boot regression on Intel desktop, does not boot after  cold boots, boots after reboot Alan Stern <stern@rowland.harvard.edu> - 2017-02-03 23:00 +0100
          Re: v4.10-rc6 boot regression on Intel desktop, does not boot after  cold boots, boots after reboot Pavel Machek <pavel@ucw.cz> - 2017-02-03 23:50 +0100
            Re: v4.10-rc6 boot regression on Intel desktop, does not boot after  cold boots, boots after reboot Pavel Machek <pavel@ucw.cz> - 2017-02-04 09:50 +0100
              Re: v4.10-rc6 boot regression on Intel desktop, does not boot after  cold boots, boots after reboot Pavel Machek <pavel@ucw.cz> - 2017-02-04 18:00 +0100
              Re: v4.10-rc6 boot regression on Intel desktop, does not boot after  cold boots, boots after reboot Pavel Machek <pavel@ucw.cz> - 2017-02-12 13:10 +0100

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