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SubjectRe: PROBLEM: Marvell 88E8040 (sky2) fails after hibernation
On Sun, 23 Jun 2019 14:54:13 +0200 (CEST)
Thomas Gleixner <tglx@linutronix.de> wrote:

> Octavio,
>
> On Sat, 22 Jun 2019, Thomas Gleixner wrote:
> > On Wed, 19 Jun 2019, Octavio Alvarez wrote:
> > > On 6/13/19 3:45 PM, Thomas Gleixner wrote:
> > > > Can you please provide the content of /proc/interrupts with the driver
> > > > loaded and working after boot (don't hibernate) for the following kernels:
> > > >
> > >
> > > $ cat linux-master-after-boot.txt
> > > CPU0 CPU1 CPU2 CPU3
> >
> > > 27: 1 0 0 0 PCI-MSI 3145728-edge eth0
> >
> > > > Linus upstream + revert
> > >
> > > $ cat linux-master-reverted-after-boot.txt
> > > CPU0 CPU1 CPU2 CPU3
> >
> > > 27: 1 0 0 0 PCI-MSI 3145728-edge eth0
> >
> > > Meanwhile, here it is for 4.9, which is the latest Debian-provided kernel and
> > > worked:
> > >
> > > $ cat linux-4.9-after-boot.txt
> > > CPU0 CPU1 CPU2 CPU3
> >
> > > 24: 1 0 0 0 PCI-MSI 3145728-edge eth0
> >
> > > 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?
>
> Thanks,
>
> tglx


Suspend/resume and hibernation issues are often related to BIOS issues.

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