linux-kernel - Re: 4.16-rc3 fails to resume on MacBookPro10,1 -

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Date:   Sat, 10 Mar 2018 14:16:05 +0100
From:   Pavel Machek <pavel@....cz>
To:     Andrew Worsley <amworsley@...il.com>
Cc:     "Rafael J. Wysocki" <rafael@...nel.org>,
        kernel list <linux-kernel@...r.kernel.org>,
        Linux-pm mailing list <linux-pm@...r.kernel.org>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Len Brown <len.brown@...el.com>, 844788@...s.debian.org
Subject: Re: 4.16-rc3 fails to resume on MacBookPro10,1 -

Hi!

> > Ok, I've just tested linux-next, and it works ok for me on thinkpad
> > x60. (But that's probably rather different configuration from the
> > macbook).
> >
> > Unfortunately, I could not deduce anything useful from the
> > backtraces. Andrew, could you try v4.15 with KPTI disabled ?
> >
> > Thanks,
> >                                                                         Pavel
> 
> This is 4.15 kernel with KPTI disabled:
> % grep PAGE_TABLE .config
> # CONFIG_PAGE_TABLE_ISOLATION is not set
> 
> As I expected it appears no more infomative to me.
> 
> What I really need is some clue as to what is supposed to be happening
> at this point.

You may want to add some printks to see where it hangs.

But maybe before that, you may want to test CPU hotplug, and make sure
s2ram works, etc...

Perhaps basic-pm-debugging.txt is good place to start?

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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