Bug#923346: networking
Yeah, I think a bug in the driver is possible, Xilinx reports proper
ptp operation:
https://xilinx-wiki.atlassian.net/wiki/spaces/A/pages/18841740/Macb+Driver#MacbDriver-PTP
I'm using a RT patched 4.18 kernel, so now I'm in the process of
testing some other kernels.
One other piece of information, I did pull the latest git version of
linuxptp, with the same results:
https://xilinx-wiki.atlassian.net/wiki/spaces/A/pages/18841740/Macb+Driver#MacbDriver-PTP
thanks,
Paul
On Wed, Feb 27, 2019 at 10:25 AM Tino Mettler <tino+debian@tikei.de> wrote:
>
> On Tue, Feb 26, 2019 at 18:35:58 -0500, Paul Thomas wrote:
> > OK, I think something more with the networking is going on. It still
> > works, but something is off. I'll investigate more tomorrow.
>
> Hi,
>
> this issue sounds rather strange. Regarding IP, ptp4l only uses UDP
> multicast and unicast, so TCP traffic for SSH should never be
> disturbed.
>
> One wild guess from my side is that ptp4l triggers some bug in your
> setup. Maybe the network driver for your hardware or the hardware
> itself behaves strange once timestamping is enabled by ptp4l.
>
> Regards,
> Tino
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