Date: Mon, 27 Jul 2020 17:15:26 +1000 From: Graham Menhennitt <graham@menhennitt.com.au> To: freebsd-stable@freebsd.org Subject: Re: Traffic "corruption" in 12-stable Message-ID: <cf6cea93-0e36-199c-b861-6e8af034f8e3@menhennitt.com.au> In-Reply-To: <9d6dc414-2866-e6c8-6b66-22af23efc728@grosbein.net> References: <9FAE54DE-F409-4A53-B91E-59AE52A86513@marcuscom.com> <9d6dc414-2866-e6c8-6b66-22af23efc728@grosbein.net>
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On 27/7/20 3:00 pm, Eugene Grosbein wrote: > 27.07.2020 5:16, Joe Clarke wrote: > >> About two weeks ago, I upgraded from the latest 11-stable to the lates= t 12-stable. After that, I periodically see the network throughput come = to a near standstill. This FreeBSD machine is an ESXi VM with two interf= aces. It acts as a router. It uses vmxnet3 interfaces for both LAN and = WAN. It runs ipfw with in-kernel NAT. The LAN side uses a bridge with v= mx0 and a tap0 L2 VPN interface. My LAN side uses an MTU of 9000, and my= vmx1 (WAN side) uses the default 1500. >> >> Besides seeing massive packet loss and huge latency (~ 200 ms for on-L= AN ping times), I know the problem has occurred because my lldpd reports: >> >> Jul 26 15:47:03 namale lldpd[1126]: frame too short for tlv received o= n bridge0 >> >> And if I turn on ipfw verbose messages, I see tons of: >> >> Jul 26 16:02:23 namale kernel: ipfw: pullup failed >> >> This leads to me to believe packets are being corrupted on ingress. I= =E2=80=99ve applied all the recent iflib changes, but the problem persist= s. What causes it, I don=E2=80=99t know. >> >> The only thing that changed (and yes, it=E2=80=99s a big one) is I upg= raded to 12-stable. Meaning, the rest of the network infra and topology = has remained the same. This did not happen at all in 11-stable. >> >> I=E2=80=99m open to suggestions. > First, try: ifconfig $ifname -rxcsum -txcsum > > _______________________________________________ > freebsd-stable@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.or= g" And possibly " -vlanhwtso -tso4" as well. Graham
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