linux-kernel - Re: linux-next on x60: network manager often complains "network is disabled" after resume

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Date:   Tue, 20 Mar 2018 21:11:54 -0400
From:   Woody Suwalski <terraluna977@...il.com>
To:     Pavel Machek <pavel@....cz>
Cc:     "Rafael J. Wysocki" <rjw@...ysocki.net>,
        kernel list <linux-kernel@...r.kernel.org>,
        Linux-pm mailing list <linux-pm@...r.kernel.org>,
        Netdev list <netdev@...r.kernel.org>
Subject: Re: linux-next on x60: network manager often complains "network is
 disabled" after resume

Woody Suwalski wrote:
> Pavel Machek wrote:
>> On Mon 2018-03-19 05:17:45, Woody Suwalski wrote:
>>> Pavel Machek wrote:
>>>> Hi!
>>>>
>>>> With recent linux-next, after resume networkmanager often claims that
>>>> "network is disabled". Sometimes suspend/resume clears that.
>>>>
>>>> Any ideas? Does it work for you?
>>>>                                     Pavel
>>> Tried the 4.16-rc6 with nm 1.4.4 - I do not see the issue.
>> Thanks for testing... but yes, 4.16 should be ok. If not fixed,
>> problem will appear in 4.17-rc1.
>>
> Works here OK. Tried ~10 suspends, all restarted OK.
> kernel next-20180320
> nmcli shows that Wifi always connects OK
>
> Woody
>
Contrary, it just happened to me on a 64-bit build 4.16-rc5 on T440.
I think that Dan's suspicion is correct - it is a snafu in the PM: 
trying to hibernate results in a message:
Failed to hibernate system via logind: There's already a shutdown or 
sleep operation in progress.

And ps shows "Ds /lib/systemd/systemd-sleep suspend"...

Woody