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From: "Thomas Mueller" <mueller6722@twc.com>
To: freebsd-current@freebsd.org
CC: pyunyh@gmail.com
Subject: Re: Problem with re(4) Ethernet driver has resurfaced in 11-STABLE
 and HEAD
References: <63.BF.09002.3974D195@dnvrco-omsmta01>
 <20170521054152.GA1091@michelle.fasterthan.co.kr>
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from YongHyeon PYUN:

> [removed stable@ from CC]

> > I recently updated my 10.1-STABLE to 11.0-STABLE and find I can no longer connect with the Ethernet.

> > dhclient re0 produces

> > DHCPDISCOVER on re0 to 255.255.255.255 port 67 interval 4
> > DHCPDISCOVER on re0 to 255.255.255.255 port 67 interval 11
> > DHCPDISCOVER on re0 to 255.255.255.255 port 67 interval 19
> > DHCPDISCOVER on re0 to 255.255.255.255 port 67 interval 7
> > DHCPDISCOVER on re0 to 255.255.255.255 port 67 interval 14
> > DHCPDISCOVER on re0 to 255.255.255.255 port 67 interval 5
> > No DHCPOFFERS received.
> > No working leases in persistent database - sleeping.


> If you assign an static IPv4 address to re(4) are you able to use
> the network interface?

> AFAIK there was no significant re(4) changes for a long time. Could
> you show us back trace information?

Problem with re(4) reappeared in both 11.0-STABLE and HEAD, but OK to trim stable@ since changes/fixes would go to HEAD first.

No connection with static IPv4 address. 

Where do I get back trace information?

Problem was more severe with HEAD in that OS immediately crashed into debugger, while in 11.0-STABLE, only the connection failed but may have left memory unstable.

I can still connect on that computer with Hiro H50191 USB wireless adapter, driver rsu.

Tom