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SubjectRe: PROBLEM: Marvell 88E8040 (sky2) fails after hibernation
Date
On 6/23/19 7:54 AM, Thomas Gleixner wrote:
>>> I will keep trying 4.14, unless you say otherwise.
>>
>> It would be interesting though I don't expect too much data.
>>
>> So all of the above use PCI/MSI. That's at least a data point. I need to
>> stare into that driver again to figure out why this might make a
>> difference, but right now I'm lost.
>
> One other data point you could provide please:
>
> Load the driver on Linus master with the following module parameter:
>
> disable_msi=1
>
> That switches to INTx usage. Does the machine resume proper with that?

Hi, Thomas,

I did two tests:

If I boot with sky2.disable_msi=1 on the kernel cmdline then the problem
goes away (when back from hibernation, the NIC works OK).

If I boot regularly (disable_msi not set) and then do modprobe -r sky2;
modprobe sky2 disable_msi=1, the problem stays (when back from
hibernation, the NIC does not work).

Tested on master (5.2-rc6).

Thanks,
Octavio.

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