Re: [PATCH] r8169: don't use MSI-X on RTL8106e

[David Miller]

From: Heiner Kallweit <hkallweit1@xxxxxxxxx>
Date: Mon, 20 Aug 2018 22:46:48 +0200

> I'm in contact with Realtek and according to them few chip versions
> seem to clear MSI-X table entries on resume from suspend. Checking
> with them how this could be fixed / worked around.
> Worst case we may have to disable MSI-X in general.

I worry that if the chip does this, and somehow MSI-X is enabled and
an interrupt is generated, the chip will write to the cleared out
MSI-X address.  This will either write garbage into memory or cause
a bus error and require PCI error recovery.

It also looks like your test patch doesn't fix things for people who
have tested it.

Hmmm...