On Tue, 28 Jun 2022 at 21:40, andy pugh <bodge...@gmail.com> wrote:

> That seems like it can work, in that compiling uspace on the rtai
> kernel works, and says "using LXRT realtime"

It seems that uspace RTAI does not work with hm2_eth:
andypugh@rm-one:~/linuxcnc-dev/src$ uname -a
Linux rm-one 4.19.195-rtai-amd64 #5 SMP PREEMPT Sun Jul 11 19:13:27
BST 2021 x86_64 GNU/Linux
andypugh@rm-one:~/linuxcnc-dev/src$ halrun
halcmd: loadrt hostmot2
Note: Using LXRT realtime
hm2: loading Mesa HostMot2 driver version 0.15
halcmd: loadrt hm2_eth board_ip=192.168.1.121
hm2_eth: loading Mesa AnyIO HostMot2 ethernet driver version 0.2
hm2_eth: 192.168.1.121: INFO: Hardware address (MAC): 00:60:1b:10:00:08
hm2_eth: discovered 7I80DB-16
hm2/hm2_7i80.0: Low Level init 0.15

{machine locks solid}

Nothing appeared in the kernel log to show what the issue was before
it locked. So I think we may need to deprecate this mode of operation.

-- 
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils and
lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1912


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