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Date:   Tue, 3 Apr 2018 10:51:20 +0200
From:   Pavel Machek <pavel@ucw.cz>
To:     Dan Williams <dcbw@redhat.com>
Cc:     Woody Suwalski <terraluna977@gmail.com>,
        "Rafael J. Wysocki" <rjw@rjwysocki.net>,
        kernel list <linux-kernel@vger.kernel.org>,
        Linux-pm mailing list <linux-pm@vger.kernel.org>,
        Netdev list <netdev@vger.kernel.org>
Subject: linux-next on x60: hangs when I request suspend was Re: linux-next
 on x60: network manager often complains "network is disabled" after resume
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Hi!

I wanted to re-test next (4.16.0-rc7-next-20180329), but that one does
not suspend at all.

I normally suspend by pressing power button in MATE, but that action
currently results in machine hanging.

								Pavel


On Mon 2018-03-26 10:33:55, Dan Williams wrote:
> On Sun, 2018-03-25 at 08:19 +0200, Pavel Machek wrote:
> > > > > Ok, what does 'nmcli dev' and 'nmcli radio' show?
> > > >=20
> > > > Broken state.
> > > >=20
> > > > pavel@amd:~$ nmcli dev
> > > > DEVICE  TYPE      STATE        CONNECTION
> > > > eth1    ethernet  unavailable  --
> > > > lo      loopback  unmanaged    --
> > > > wlan0   wifi      unmanaged    --
> > >=20
> > > If the state is "unmanaged" on resume, that would indicate a
> > > problem
> > > with sleep/wake and likely not a kernel network device issue.
> > >=20
> > > We should probably move this discussion to the NM lists to debug
> > > further.  Before you suspend, run "nmcli gen log level trace" to
> > > turn
> > > on full debug logging, then reproduce the issue, and send a pointer
> > > to
> > > those logs (scrubbed for anything you consider sensitive) to the NM
> > > mailing list.
> >=20
> > Hmm :-)
> >=20
> > root@amd:/data/pavel# nmcli gen log level trace
> > Error: Unknown log level 'trace'
>=20
> What NM version?  'trace' is pretty old (since 1.0 from December 2014)
> so unless you're using a really, really old version of Debian I'd
> expect you'd have it.  Anyway, debug would do.
>=20
> > root@amd:/data/pavel# nmcli gen log level help
> > Error: Unknown log level 'help'
>=20
> nmcli gen help
>=20
> > root@amd:/data/pavel# nmcli gen log level
> > Error: value for 'level' argument is required.
> > root@amd:/data/pavel# nmcli gen log level debug
>=20
> This should be OK.
>=20
> > root@amd:/data/pavel# cat /var/log/sys/log
>=20
> It routes it to whatever the syslog 'daemon' facility logs to (however
> that's configured on your system).  Usually /var/log/messages or
> /var/log/daemon.log or sometimes your distro configures it to
> /var/log/NetworkManager.log.
>=20
> Or if you're using a systemd-based distro, it would probably be in the
> systemd journal so "journalctl -b -u NetworkManager"
>=20
> > Where do I get the logs? I don't see much in the syslog...
>=20
> > And.. It seems that it is "every other suspend". One resume results
> > in
> > broken network, one in working one, one in broken one...
>=20
> Does your distro use pm-utils, upower, or systemd for suspend/resume
> handling?
>=20
> Dan

--=20
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo=
g.html

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