linux-kernel - Re: suspend broken in next-20190704 on Thinkpad X60

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Message-ID: <CAJZ5v0irbn-Xd47KExw=h7On7KShCm6rThCo0q4-zn=o_x6_HQ@mail.gmail.com>
Date:   Sat, 6 Jul 2019 10:33:42 +0200
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     Pavel Machek <pavel@....cz>
Cc:     "Rafael J. Wysocki" <rafael@...nel.org>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Linux-pm mailing list <linux-pm@...r.kernel.org>,
        kernel list <linux-kernel@...r.kernel.org>,
        Stephen Rothwell <sfr@...b.auug.org.au>
Subject: Re: suspend broken in next-20190704 on Thinkpad X60

On Fri, Jul 5, 2019 at 8:50 PM Pavel Machek <pavel@....cz> wrote:
>
> On Fri 2019-07-05 00:59:35, Rafael J. Wysocki wrote:
> > On Thu, Jul 4, 2019 at 9:20 PM Pavel Machek <pavel@....cz> wrote:
> > >
> > > Hi!
> > >
> > > Suspend is broken in next-20190704 on Thinkpad X60.
> >
> > Broken in what way?  Any details?
> >
> > > It very very probably worked ok in 20190701.
> >
> > Well, please try the linux-next branch from linux-pm.git
> > (git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git)
> > alone and see if that fails.
>
> So... let me try this one?
>
> commit  1e2a4c9019eb53f62790fadf86c14a54f4cf4888 (patch)
> tree    cb5339fcaae2166832f91f4ce9f40575cc6cb6e5
> parent  3836c60c063581294c3a82f8cbccf3f702951358 (diff)
> parent  0a811974f3f79eea299af79c29595d8e1cb80a15 (diff)
> download
> linux-pm-1e2a4c9019eb53f62790fadf86c14a54f4cf4888.tar.gz
> Merge branch 'pm-cpufreq-new' into
> linux-nexttestinglinux-nextbleeding-edge
> * pm-cpufreq-new:
>
> That one is broken, too.
>
> pavel@amd:~$ sudo pm-suspend
>
> Machine suspends, resumes, but I don't get my prompt back.

I'm not sure what you mean here.  I'm guessing that you don't get back
to the console from which you ran the pm-suspend command, but is X
restored, for example?  Is there any way to get into the system in
that state?

Anyway, if 5.2-rc7 is OK, something in this branch causes the problem
to happen for you.

I would try

https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git/commit/?h=linux-next&id=f012a132824fc870b90980540f727c76fc72e244

to narrow down the scope somewhat.