On 06.11.2018 12:47, Vincenzo Maffione wrote:

>   There are two separate issues here.
> The first it's updating pkt-gen. This is what I'm trying to do right now
> (https://reviews.freebsd.org/D17698). The update will land in HEAD and
> then after 3 days in 12/stable. I will also update 11/stable later.
 Great to know, thanx!

> The second issue looks like a problem related to the em driver. As far
> as I know, netmap support for em driver is now provided by iflib
> (sys/net/iflib.c). Maybe there is an issue in iflib_netmap_txsync() that
> prevents progress?
 Maybe. We need iflib/e1000 professionals here.

> Or maybe the interface is down while TX is stuck (thus preventing progress)?
 Nope, it is up for sure. If I ^C pkt-gen it could be run again and
works again, with same problem when it try to stop.

-- 
// Lev Serebryakov

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