linux-kernel - Re: [regression] wake on lan no longer works in 4.13-rc3. was Re: Linux 4.13: Reported regressions as of Sunday, 2017-08-06

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Message-ID: <25469991.213uJSqkO8@aspire.rjw.lan>
Date:   Wed, 09 Aug 2017 22:35:37 +0200
From:   "Rafael J. Wysocki" <rjw@...ysocki.net>
To:     Pavel Machek <pavel@....cz>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Cc:     Thorsten Leemhuis <regressions@...mhuis.info>,
        jeffrey.t.kirsher@...el.com, intel-wired-lan@...ts.osuosl.org,
        Linux PM <linux-pm@...r.kernel.org>
Subject: Re: [regression] wake on lan no longer works in 4.13-rc3. was Re: Linux 4.13: Reported regressions as of Sunday, 2017-08-06

[You seem to have a stale linux-pm address in your address book,
 I replaced it with the current one in the CC list.]

On Wednesday, August 9, 2017 8:42:31 AM CEST Pavel Machek wrote:
> On Wed 2017-08-09 02:45:54, Rafael J. Wysocki wrote:
> > On Tuesday, August 8, 2017 11:00:53 AM CEST Pavel Machek wrote:
> > > Hi!
> > > 
> > > Perhaps you should get regressions@...nel.org alias, or something like that?
> > > 
> > > > As always: Are you aware of any other regressions? Then please let me
> > > > know. For details see http://bit.ly/lnxregtrackid And please tell me if
> > > > there is anything in the report that shouldn't be there.
> > > 
> > > I am using wake-on-lan quite a bit, and it stopped working. I'll move
> > > to -rc4 and test there; but if anyone already has some ideas, let me
> > > know.
> > > 
> > > Hardware is thinkpad X220
> > > 
> > > 00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network
> > > Connection (rev 04)
> > 
> > I guess this is ACPI S3 suspend?
> 
> ACPI S3, right. Machine still wakes up properly when I hit a key on
> USB keyboard.

OK, so my guess would be a driver issue.  What driver is this, igb?

> Does wake on LAN work on you, on any hardware?

Yes it does, I checked two machines earlier today, both work.

Can you enable dynamic debug in device_pm.c and send a dmesg output
with that covering a suspend-resume cycle?

Thanks,
Rafael