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Ethernet lockup on SAMA5d31

Posted: Mon Jan 22, 2018 5:31 pm
by LetoThe2nd
Hiya!

We have several reports of the ethernet interface on our SAMA5D31-based board, but can't properly reproduce them. What we know so far is that the port
- stops responding to pings
- can't be resurrected with ifup, ifdown
- works again after a reboot.

At the moment we're running kernel 4.0, and have seen that there has been a couple of patches later that might be related, like
- https://git.kernel.org/pub/scm/linux/ke ... 94fa744965
- https://git.kernel.org/pub/scm/linux/ke ... cc063289b8
- https://git.kernel.org/pub/scm/linux/ke ... c55f672604

Can anybody comment on that? Or is there soemthing else to it that I might have overlooked?

Greetz Leto

Re: Ethernet lockup on SAMA5d31

Posted: Thu Jan 25, 2018 3:22 am
by blue_z
Leto wrote:We have several reports of the ethernet interface on our SAMA5D31-based board, but can't properly reproduce them. What we know so far is that the port...
That's a sketchy description that implicates nothing, yet you want to pursue a software fix.
Why have you ruled out hardware and/or power and/or site-specific issues?
What's the state of the link LEDs?
Instead of a board reboot, does a re-negotiation (disconnect the cable, reconnect) suffice?

Regards