LinuxCNC not connecting to 7i96S on 2.9.1

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20 Dec 2023 18:07 - 26 Dec 2023 18:55 #288684 by rowow
FIXED*** When installing the linux cnc OS I had the ethernet port connected to the internet. When doing a new install with it disconnected it worked. Some errors come up (see page 5 of thread), but try to get through them and it works.

Ive installed linuxcnc before successfully with my mesa card, but recently changed to a new computer and after a fresh install of 2.9.1 and following the exact same steps I did before to get my mesa controller running it now puts out the following when launching
Debug file information:
Note: Using POSIX realtime
hm2_eth: rtapi_app_main: Resource temporarily unavailable (-11)
./Mill.hal:9: waitpid failed /usr/bin/rtapi_app hm2_eth
./Mill.hal:9: /usr/bin/rtapi_app exited without becoming ready
./Mill.hal:9: insmod for hm2_eth failed, returned -1
1818
Stopping realtime threads
Unloading hal components
Note: Using POSIX realtime




Pinging 10.10.10.10 works great

[code]PING 10.10.10.10 (10.10.10.10) 56(84) bytes of data.
64 bytes from 10.10.10.10: icmp_seq=1 ttl=64 time=0.585 ms
64 bytes from 10.10.10.10: icmp_seq=2 ttl=64 time=0.354 ms
64 bytes from 10.10.10.10: icmp_seq=3 ttl=64 time=0.385 ms
64 bytes from 10.10.10.10: icmp_seq=4 ttl=64 time=0.358 ms
64 bytes from 10.10.10.10: icmp_seq=5 ttl=64 time=0.383 ms
64 bytes from 10.10.10.10: icmp_seq=6 ttl=64 time=0.375 ms
64 bytes from 10.10.10.10: icmp_seq=7 ttl=64 time=0.370 ms
64 bytes from 10.10.10.10: icmp_seq=8 ttl=64 time=0.371 ms
64 bytes from 10.10.10.10: icmp_seq=9 ttl=64 time=0.283 ms
64 bytes from 10.10.10.10: icmp_seq=10 ttl=64 time=0.351 ms
^C
--- 10.10.10.10 ping statistics ---
10 packets transmitted, 10 received, 0% packet loss, time 9219ms
rtt min/avg/max/mdev = 0.283/0.381/0.585/0.073 ms


while reading through dozens of forum posts I used a command which got the mesa board information and pins through the terminal and it listed all its information successfully. I however forgot the command I used to be able to do again and post the results.
[/code]
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Last edit: 26 Dec 2023 18:55 by rowow.

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20 Dec 2023 18:33 #288686 by PCW
Usually the "resource unavailable" issue is something wrong
with the host setup or link status. Its often temporary after
making some change in the network settings.

To read the card info:

mesaflash --device 7i96s --addr 10.10.10.10 --readhmid > pins.txt

(and post pins.txt here)

Possibly unrelated but your ping times are quite long.
If you have an Intel Ethernet chip, you should disable
IRQ coalescing as described in the hm2_eth manual page:

man hm2_eth

You can try disabling this with a terminal command but
the setting will revert to the defaults after reboot so its
best to disable the IRQ coalescing in the interfaces file
as described in the hm2_eth manual page.

To disable IRQ coalescing on the command line:

sudo ethtool -C [Your_Ethernet_Device_Name] rx-usecs 0

Note that you may need to install ethtool on Debian

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20 Dec 2023 18:52 #288687 by rowow
reading the card info does not do anything.

and for disabling IRQ the ethernet_device_name would be enp1s0 or the custom name I gave it

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20 Dec 2023 19:04 #288688 by PCW
mesaflash --device 7i96s --addr 10.10.10.10 --readhmid > pins.txt

Will create a file "pins.txt" that you can post here

Also the results of the command

ip a

May be helpful

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20 Dec 2023 19:08 #288689 by rowow
found the output of pins.txt in the home directory. Attached it to this comment

this is the output of "ip a"
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host noprefixroute
       valid_lft forever preferred_lft forever
2: enp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 54:ab:3a:de:23:19 brd ff:ff:ff:ff:ff:ff
    inet 10.10.10.11/24 brd 10.10.10.255 scope global enp1s0
       valid_lft forever preferred_lft forever
    inet6 fe80::56ab:3aff:fede:2319/64 scope link
       valid_lft forever preferred_lft forever
3: wlp2s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000
    link/ether 6a:36:20:e7:46:71 brd ff:ff:ff:ff:ff:ff permaddr 7c:5c:f8:f3:05:c0
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20 Dec 2023 19:18 #288690 by PCW
All looks OK, you might try disabling IRQ coalescing and see if that helps

sudo ethtool -C enp1s0 rx-usecs 0





 

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20 Dec 2023 19:30 #288691 by rowow
Did "sudo ethtool -C enp1s0 rx-usecs 0" no output,

Still error when starting linux cnc
Print file information:
RUN_IN_PLACE=no
LINUXCNC_DIR=
LINUXCNC_BIN_DIR=/usr/bin
LINUXCNC_TCL_DIR=/usr/lib/tcltk/linuxcnc
LINUXCNC_SCRIPT_DIR=
LINUXCNC_RTLIB_DIR=/usr/lib/linuxcnc/modules
LINUXCNC_CONFIG_DIR=
LINUXCNC_LANG_DIR=/usr/lib/tcltk/linuxcnc/msgs
INIVAR=inivar
HALCMD=halcmd
LINUXCNC_EMCSH=/usr/bin/wish8.6
LINUXCNC - 2.9.1
Machine configuration directory is '/home/rowow/linuxcnc/configs/Mill'
Machine configuration file is 'Mill.ini'
INIFILE=/home/rowow/linuxcnc/configs/Mill/Mill.ini
VERSION=1.1
PARAMETER_FILE=linuxcnc.var
TPMOD=
HOMEMOD=
TASK=milltask
HALUI=halui
DISPLAY=gmoccapy
COORDINATES=XYZ
KINEMATICS=trivkins coordinates=XYZ
Starting LinuxCNC...
Starting LinuxCNC server program: linuxcncsvr
Loading Real Time OS, RTAPI, and HAL_LIB modules
Starting LinuxCNC IO program: io
Starting HAL User Interface program: halui
linuxcnc TPMOD=tpmod HOMEMOD=homemod EMCMOT=motmod
Found file(REL): ./Mill.hal
Shutting down and cleaning up LinuxCNC...
Running HAL shutdown script
hm2: loading Mesa HostMot2 driver version 0.15
hm2_eth: loading Mesa AnyIO HostMot2 ethernet driver version 0.2
hm2_eth: 10.10.10.10: INFO: Hardware address (MAC): 00:60:1b:16:84:e8
hm2_eth: discovered 7I96S
hm2/hm2_7i96s.0: Low Level init 0.15
hm2/hm2_7i96s.0: Smart Serial Firmware Version 43
board fails HM2 registration
hm2_eth: in hm2_eth_reset
hm2: unloading
Removing HAL_LIB, RTAPI, and Real Time OS modules
Removing NML shared memory segments

Debug file information:
Note: Using POSIX realtime
hm2_eth: rtapi_app_main: Resource temporarily unavailable (-11)
./Mill.hal:9: waitpid failed /usr/bin/rtapi_app hm2_eth
./Mill.hal:9: /usr/bin/rtapi_app exited without becoming ready
./Mill.hal:9: insmod for hm2_eth failed, returned -1
2930
Stopping realtime threads
Unloading hal components
Note: Using POSIX realtime

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20 Dec 2023 19:37 #288692 by PCW
Did the ping times improve?

What is your servo thread period?

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20 Dec 2023 19:43 #288693 by rowow
Ping times did not improve.

Attached servo thread jitter screenshot
 
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20 Dec 2023 19:46 - 20 Dec 2023 19:47 #288694 by PCW
What is LinuxCNC's servo thread period?

If the ping times did not improve,  there is something preventing good
Ethernet latency. What is the host machine hardware?
Last edit: 20 Dec 2023 19:47 by PCW.

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