Re: [bug, bisected] pfifo_fast causes packet reordering

[Jakob Unterwurzacher]

On 16.03.18 11:26, Jakob Unterwurzacher wrote:
> On 15.03.18 23:30, John Fastabend wrote:
> > > I have reproduced it using two USB network cards connected to each 
> > > other. The test tool sends UDP packets containing a counter and 
> > > listens on the other interface, it is available at
> > > https://github.com/jakob-tsd/pfifo_stress/blob/master/pfifo_stress.py
> >
> > Great thanks, can you also run this with taskset to bind to
> > a single CPU,
> >
> > Â # taskset 0x1 ./pifof_stress.py
> >
> > And let me know if you still see the OOO.
>
> Interesting. Looks like it depends on which core it runs on. CPU0 is 
> clean, CPU1 is not.

So we are at v4.16-rc6 now - have you managed to reproduce this is or 
should I try to get the revert correct?

Best regards,
Jakob