Re: PROBLEM: Marvell 88E8040 (sky2) fails after hibernation
From: Octavio Alvarez
Date: Mon Jun 24 2019 - 13:08:59 EST
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:
That switches to INTx usage. Does the machine resume proper with that?
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).