Re: [bug, bisected] pfifo_fast causes packet reordering

From: Jakob Unterwurzacher
Date: Mon Mar 19 2018 - 08:57:03 EST


On 19.03.18 13:32, Paolo Abeni wrote:
Is not clear to me if you can reproduce the bug with the vanilla
kernel, or if you need some out-of-tree nic driver. Can you please
clarify which NIC/driver are you using?

Yes I reproduced it with a vanilla kernel. I use two off-the-shelf USB NICs, lsusb says:

Bus 005 Device 013: ID 0b95:7720 ASIX Electronics Corp. AX88772
Bus 005 Device 014: ID 0b95:772b ASIX Electronics Corp. AX88772B

Photo of the setup:
https://github.com/jakob-tsd/pfifo_stress/blob/master/usb_nics.jpg

Best regards,
Jakob