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

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Message-ID: <20170216172535.GA7868@amd>
Date:   Thu, 16 Feb 2017 18:25:35 +0100
From:   Pavel Machek <pavel@....cz>
To:     Linus Torvalds <torvalds@...ux-foundation.org>, fweisbec@...il.com,
        wanpeng.li@...mail.com, peterz@...radead.org, riel@...hat.com,
        tglx@...utronix.de, stable@...nel.org
Cc:     "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Alan Stern <stern@...land.harvard.edu>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        USB list <linux-usb@...r.kernel.org>
Subject: Re: v4.10-rc8 (-rc6) boot regression on Intel desktop, does not boot
 after cold boots, boots after reboot

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@...f:/data/l/linux$ git bisect bad
24b91e360ef521a2808771633d76ebc68bd5604b is the first bad commit
commit 24b91e360ef521a2808771633d76ebc68bd5604b
Author: Frederic Weisbecker <fweisbec@...il.com>
Date:   Wed Jan 4 15:12:04 2017 +0100

    nohz: Fix collision between tick and other hrtimers
    

									Pavel

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

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