Re: Porting OpenBSD MPLS to FreeBSD

2021-11-19 Thread Rodney W. Grimes
> Hi freebsd-net@, > > Long time no see. I've gotten a (Ports) commit bit since then. > > I haven't been very active in TCP/IP hacking as of late, as more > recently I've been more focused on GNOME packages and some GPU drivers. > > Going back, I'm thinking about porting OpenBSD's MPLS to FreeB

Re: Porting OpenBSD MPLS to FreeBSD

2021-11-19 Thread Lutz Donnerhacke
On Fri, Nov 19, 2021 at 11:17:42AM -0800, Neel Chauhan wrote: > * Is porting OpenBSD MPLS to FreeBSD feasible, or are we better off doing > a from-scratch implementation based on netgraph? I'd prefer a netgraph approach, if possible. It helps to concentrate on the important things. > * Would s

Porting OpenBSD MPLS to FreeBSD

2021-11-19 Thread Neel Chauhan
Hi freebsd-net@, Long time no see. I've gotten a (Ports) commit bit since then. I haven't been very active in TCP/IP hacking as of late, as more recently I've been more focused on GNOME packages and some GPU drivers. Going back, I'm thinking about porting OpenBSD's MPLS to FreeBSD. I have a

Re: Splitting antenna

2021-11-19 Thread Jim Thompson via freebsd-net
(When did FreeBSD-net become about antenna theory?) The answer (of course) is, “it depends”. Mostly on “what bands” though your antenna and cables will have some effect as well. Some WiFi cards these days employ a form of beamforming or even MIMO. Older cards could use selection diversity t

Re: vmxnet3: possible bug in vmxnet3_isc_rxd_pkt_get

2021-11-19 Thread Andriy Gapon
On 19/11/2021 20:19, Andriy Gapon wrote: Here is some data to demonstrate the issue: $1 = (iflib_rxq_t) 0xfe00ea9f6200 (kgdb) p $1->ifr_frags[0] $2 = {irf_flid = 0 '\000', irf_idx = 1799, irf_len = 118} (kgdb) p $1->ifr_frags[1] $3 = {irf_flid = 1 '\001', irf_idx = 674, irf_len = 0} (kgdb) p

Splitting antenna

2021-11-19 Thread D'Arcy Cain
I am using my FreeBSD box as my main ingress to my RV trailer. We move around and sometimes use Ethernet, sometimes PPP directly on DSL and sometimes we connect to a local wifi hotspot. To get the best connection I have mounted an external, multi-band antenna on the trailer and connect it to

vmxnet3: possible bug in vmxnet3_isc_rxd_pkt_get

2021-11-19 Thread Andriy Gapon
We have infrequent but persistent crashes at work where a part of an iflib_rxq_t object seems to be overwritten by a sequence of if_rxd_frag objects. Those if_rxd_frag elements look like a continuation of the ifr_frags array in an adjacent iflib_rxq_t object. This happens only on VMWare only

Workaround: Re: dtrace to trace incoming connection not suceeding ?

2021-11-19 Thread Kurt Jaeger
Hi! > > > There's one small diff between the two that I do not understand: > > > - 18040 times no signature provided by segment > > > + 18045 times no signature provided by segment > > > > This means, that received TCP segment has not TCP-MD5 signature, but > > listen socket expects

[Bug 259458] iflib_rxeof NULL pointer crash with vmxnet3 driver

2021-11-19 Thread bugzilla-noreply
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=259458 Andriy Gapon changed: What|Removed |Added Assignee|n...@freebsd.org |a...@freebsd.org Statu

[Bug 259458] iflib_rxeof NULL pointer crash with vmxnet3 driver

2021-11-19 Thread bugzilla-noreply
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=259458 --- Comment #20 from commit-h...@freebsd.org --- A commit in branch main references this bug: URL: https://cgit.FreeBSD.org/src/commit/?id=1bfdb812c786ac2607a82633f9c84a5d16f54079 commit 1bfdb812c786ac2607a82633f9c84a5d16f54079 Author: