Re: r8169 regression: UDP packets dropped intermittantly

From: Michal Kubecek
Date: Tue Dec 19 2017 - 07:25:36 EST

On Tue, Dec 19, 2017 at 04:15:32PM +1030, Jonathan Woithe wrote:
> This clearly indicates that not every card using the r8169 driver is
> vulnerable to the problem. It also explains why Holger was unable to
> reproduce the result on his system: the PCIe cards do not appear to suffer
> from the problem. Most likely the PCI RTL-8169 chip is affected, but newer
> PCIe variations do not. However, obviously more testing will be required
> with a wider variety of cards if this inference is to hold up.

The r8169 driver supports many slightly different variants of the chip.
To identify your variant more precisely, look for a line like

r8169 0000:02:00.0 eth0: RTL8168evl/8111evl at 0xffffc90003135000, d4:3d:7e:2a:30:08, XID 0c900800 IRQ 38

in kernel log.

Michal Kubecek