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

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Message-ID: <20170203211854.GA3697@amd>
Date:   Fri, 3 Feb 2017 22:18:54 +0100
From:   Pavel Machek <pavel@....cz>
To:     Alan Stern <stern@...land.harvard.edu>
Cc:     kernel list <linux-kernel@...r.kernel.org>,
        linux-usb@...r.kernel.org, gregkh@...uxfoundation.org,
        bhelgaas@...gle.com, linux-pci@...r.kernel.org
Subject: Re: v4.10-rc6 boot regression on Intel desktop, does not boot after
 cold boots, boots after reboot

Hi!

> > > Hmm. I moved keyboard between USB ports, and now 4.10-rc6 no longer
> > > boots. v4.6 works ok. Let me try with keyboard unplugged... no, I
> > > could not get it to work. I believe v4.9 and some v4.10-rc's worked,
> > > but I'll have to double check.
> > 
> > But all the kernel versions worked when the keyboard was plugged into
> > its original USB port?
> 
> 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)

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

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