I have several i210s on Supermicro motherboards and now APU2, and I haven't seen these issues. I wonder if your problem is related to a combination of features? Have you tried to isolate what process or kernel feature makes this behaviour occur?
Juuso Lapinlampi [w...@partyvan.eu] wrote: > This may be related: > > em(4) interface hangs randomly, receive buffer full (Intel i210) > https://marc.info/?l=openbsd-misc&m=145696725605233&w=2 > > I've been having those Tor hangs for months. The same issue, clock skips > ahead some minutes and breaks Tor connections but not clearnet. They > happen quite frequently, at least three times a week to say. Heck, I've > seen this issue for more than a year since OpenBSD 5.6 or 5.7. The issue > became worse late OpenBSD 5.8. > > It seems like the issue gets worse when Tor's HardwareAccel option is > enabled (HardwareAccel 1). Disabling it has helped a lot, but hasn't > resolved the issue. I've also never been able to get more than ~1 MB/s > throughput for some reason with or without HardwareAccel on OpenBSD. No > idea why, probably the constantly breaking circuits. > > I spent 2.5 months debugging the issue and it's still persisting. I've > posted a full email transcript with more details.[1] > > It seems to be a little random which Tor connections get dropped. There > are IRC users connecting to an .onion address, and for years only some > of them have dropped connections and some kept going. > > This server also uses OpenNTPD for syncing the clock from NTP.org Sweden > pool. I haven't tried disabling it yet to see what would happen. > > [1]: > https://partyvan.eu/transparency/emails/2016-02-16-portlane-nic-downtime.txt
