netdev - Re: 4.9.0-rc8: tg3 dead after resume

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Date:   Wed, 7 Dec 2016 13:44:51 -0500
From:   Billy Shuman <wshuman3@...il.com>
To:     Michael Chan <michael.chan@...adcom.com>
Cc:     Netdev <netdev@...r.kernel.org>,
        Siva Reddy Kallam <siva.kallam@...adcom.com>
Subject: Re: 4.9.0-rc8: tg3 dead after resume

On Wed, Dec 7, 2016 at 12:37 PM, Michael Chan <michael.chan@...adcom.com> wrote:
> On Wed, Dec 7, 2016 at 7:20 AM, Billy Shuman <wshuman3@...il.com> wrote:
>> After resume on 4.9.0-rc8 tg3 is dead.
>>
>> In logs I see:
>> kernel: tg3 0000:44:00.0: phy probe failed, err -19
>> kernel: tg3 0000:44:00.0: Problem fetching invariants of chip, aborting
>
> -19 is -ENODEV which means tg3 cannot read the PHY ID.
>
> If it's a true suspend/resume operation, the driver does not have to
> go through probe during resume.  Please explain how you do
> suspend/resume.
>

Sorry my previous message was accidentally sent to early.

I used systemd (systemctl suspend) to suspend.

> Did this work before?  There has been very few changes to tg3 recently.
>

This is a new laptop for me, but the same behavior is seen on 4.4.36 and 4.8.12.

>>
>> rmmod and modprobe does not fix the problem only a reboot resolves the issue.
>>
>> Billy