Intel em (82574L and 82573L) problems: stopping on high network and cpu load (Watchdog timeout)

[Andre Albsmeier]

On Tue, 14-Apr-2015 at 10:01:16 -0400, Mike Tancsa wrote:
> On 4/14/2015 1:54 AM, Andre Albsmeier wrote:
> >
> > Is this an em specific issue or should one avoid TSO generally
> > at the moment? That is, should I disable it on machines with
> > msk (and maybe other) interfaces as well?
> 
> em specific I think.  This thread has some info on what might be going on
> 
> https://lists.freebsd.org/pipermail/freebsd-stable/2014-September/080081.html

Very interesting, thanks. Until now (and without TSO), the problem
did not re-occur but I didn't hit the NFS heavily yet.

	-Andre