serials errors when connecting with my mesa 7i76 card

Goulven
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09 May 2021 11:03 #208362 by Goulven

serials errors when connecting with my mesa 7i76 card was created by Goulven

Hi,

I've serials errors when connecting with my new mesa 7i76 card. I've disable wifi and dhcp for this network.

When launching linuxcnc, I always have this error:
hm2/hm2_7i76e.0: Smart Serial port 0: DoIt not cleared from previous servo thread. Servo thread rate probably too fast. This message will not be repeated, but the hm2_7i76e.0.sserial.0.fault-count pin will indicate if this is happening frequently.

I can run some gcode instructions, but after a moment, i have this errors and i have to reboot card or explotation system :
hm2/hm2_7i76e.0: Watchdog has bit! (set the .has-bit pin to False to resume)

hm2/hm2_7i76e.0: Watchdog has bit! (set the .has-bit pin to False to resume)
hm2/hm2_7i76e.0: Smart serial card hm2_7i76e.0.7i76.0.0 local error = (13) Communication error

hm2/hm2_7i76e.0: Smart serial card hm2_7i76e.0.7i76.0.0 local error = (13) Communication error
hm2/hm2_7i76e.0: Smart serial card hm2_7i76e.0.7i76.0.0 local error = (3) Timeout
hm2/hm2_7i76e.0: Smart Serial Comms Error: There have been more than 1 errors in 10 thread executions at least 200 times. See other error messages for details.
hm2/hm2_7i76e.0: ***Smart Serial Port 0 will be stopped***
hm2/hm2_7i76e.0: Smart serial card hm2_7i76e.0.7i76.0.0 local error = (3) Timeout

hm2/hm2_7i76e.0: Smart Serial Comms Error: There have been more than 1 errors in 10 thread executions at least 200 times. See other error messages for details.

hm2/hm2_7i76e.0: ***Smart Serial Port 0 will be stopped***

I put the terminal output of linuxcnc 2.8.0 in the attachments as well as the hal and ini config files.

Thank you in advance.

File Attachment:

File Name: serials_er...7i76.txt
File Size:7 KB

File Attachment:

File Name: AXIS_7i76.ini
File Size:4 KB

File Attachment:

File Name: AXIS_7i76.hal
File Size:8 KB

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BeagleBrainz
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09 May 2021 11:36 #208365 by BeagleBrainz

Replied by BeagleBrainz on topic serials errors when connecting with my mesa 7i76 card

What is the output of

uname -a

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tommylight
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09 May 2021 11:41 #208367 by tommylight

Replied by tommylight on topic serials errors when connecting with my mesa 7i76 card

ip a
ping 10.10.10.10
Results?

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Goulven
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09 May 2021 11:45 - 09 May 2021 12:04 #208369 by Goulven

Replied by Goulven on topic serials errors when connecting with my mesa 7i76 card

The latest linuxcnc distribution:

root@linuxcnc:~# uname -a
Linux linuxcnc 4.19.0-11-rt-amd64 #1 SMP PREEMPT RT Debian 4.19.146-1 (2020-09-17) x86_64 GNU/Linux
root@linuxcnc:~#

Yes i can ping it:

root@linuxcnc:~# ping 10.10.10.10
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=0.358 ms
64 bytes from 10.10.10.10: icmp_seq=2 ttl=64 time=0.359 ms
64 bytes from 10.10.10.10: icmp_seq=3 ttl=64 time=0.358 ms
64 bytes from 10.10.10.10: icmp_seq=4 ttl=64 time=0.352 ms
^C
--- 10.10.10.10 ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 61ms
rtt min/avg/max/mdev = 0.352/0.356/0.359/0.023 ms
root@linuxcnc:~#

i've two ethernets cards plus one wifi: i disable enp5s0 when running linuxcnc (ifup/ifdown) and i disable the wifi one in my grub.cnf:

root@linuxcnc:~# 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 
       valid_lft forever preferred_lft forever
2: enp5s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether 54:b2:03:93:bd:e0 brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.200/24 brd 192.168.1.255 scope global dynamic enp5s0
       valid_lft 859048sec preferred_lft 859048sec
    inet6 2a01:e34:ef39:4c50:56b2:3ff:fe93:bde0/64 scope global dynamic mngtmpaddr 
       valid_lft 86084sec preferred_lft 86084sec
    inet6 fe80::56b2:3ff:fe93:bde0/64 scope link 
       valid_lft forever preferred_lft forever
3: eno1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 54:b2:03:93:bd:df brd ff:ff:ff:ff:ff:ff
    inet 10.10.10.2/24 brd 10.10.10.255 scope global eno1
       valid_lft forever preferred_lft forever
    inet6 fe80::56b2:3ff:fe93:bddf/64 scope link 
       valid_lft forever preferred_lft forever
4: wlp6s0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether 84:c5:a6:ea:f1:d7 brd ff:ff:ff:ff:ff:ff
root@linuxcnc:~#
 
root@linuxcnc:~# ifconfig
eno1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 10.10.10.2  netmask 255.255.255.0  broadcast 10.10.10.255
        inet6 fe80::56b2:3ff:fe93:bddf  prefixlen 64  scopeid 0x20<link>
        ether 54:b2:03:93:bd:df  txqueuelen 1000  (Ethernet)
        RX packets 12  bytes 1190 (1.1 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 124  bytes 10470 (10.2 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 16  memory 0xdc300000-dc320000  

enp5s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.200  netmask 255.255.255.0  broadcast 192.168.1.255
        inet6 2a01:e34:ef39:4c50:56b2:3ff:fe93:bde0  prefixlen 64  scopeid 0x0<global>
        inet6 fe80::56b2:3ff:fe93:bde0  prefixlen 64  scopeid 0x20<link>
        ether 54:b2:03:93:bd:e0  txqueuelen 1000  (Ethernet)
        RX packets 19979  bytes 7145916 (6.8 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 16089  bytes 2485061 (2.3 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device memory 0xdc200000-dc21ffff  

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Boucle locale)
        RX packets 49  bytes 5196 (5.0 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 49  bytes 5196 (5.0 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

root@linuxcnc:~#

Last edit: 09 May 2021 12:04 by Goulven. Reason: Add info

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BeagleBrainz
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09 May 2021 12:46 #208370 by BeagleBrainz

Replied by BeagleBrainz on topic serials errors when connecting with my mesa 7i76 card

What are your latency test results ?

The following user(s) said Thank You: Goulven

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tommylight
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09 May 2021 13:30 #208371 by tommylight

Replied by tommylight on topic serials errors when connecting with my mesa 7i76 card

Goulven wrote:

Yes i can ping it:

root@linuxcnc:~# ping 10.10.10.10
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=0.358 ms
64 bytes from 10.10.10.10: icmp_seq=2 ttl=64 time=0.359 ms
64 bytes from 10.10.10.10: icmp_seq=3 ttl=64 time=0.358 ms
64 bytes from 10.10.10.10: icmp_seq=4 ttl=64 time=0.352 ms
^C
--- 10.10.10.10 ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 61ms
rtt min/avg/max/mdev = 0.352/0.356/0.359/0.023 ms
root@linuxcnc:~#

This begs the question, is the Mesa board directly connected to the PC ? NO switches or HUB's in-between !
It can also be an Intel ethernet card on the PC, there is something to help with that, but PCW knows better about it.
Another thing, why ROOT?
Not advisable to use root ....

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Goulven
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09 May 2021 14:07 #208373 by Goulven

Replied by Goulven on topic serials errors when connecting with my mesa 7i76 card

Hi, thanks both for your responses.

Two screens capture in attachments:
latency.png
switch.jpg

I use a switch between the card and the computer and i have disable dhcp in the switch. I have just regular cable, for a direct connection i thinks i should use a cross cable ?

Root was just for executing root command, i run linuxcnc as a regular user.

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tommylight
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09 May 2021 14:32 #208375 by tommylight

Replied by tommylight on topic serials errors when connecting with my mesa 7i76 card

tommylight wrote:
NO switches or HUB's in-between !

And latency is terrible, is that still under the RT kernel ? Disable everything related to power savings, hypethreading, speedstep, C states, virtualisation, etc etc, in BIOS.
Also a normal straight cable works just fine, almost all network adapters post 2005-6 should have "auto negotiation" so cross cable is a thing of the past.

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Goulven
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09 May 2021 15:04 #208381 by Goulven

Replied by Goulven on topic serials errors when connecting with my mesa 7i76 card

I bypass the switch and i can still ping the card... I'm a man of the past !!! But still have the sames errors.

It is my only computer, and i have virtualisation enebled.
I will change my bios settings...

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PCW
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09 May 2021 16:19 - 09 May 2021 16:20 #208392 by PCW

Replied by PCW on topic serials errors when connecting with my mesa 7i76 card

Note that you should not have your wireless setup on the same 10.10.10.XX
subnet, it should be left at the default 192.168.1.XX range. There is no reason
to change your router settings at all. Nothing else in the network should
be in the 10.10.10.XX range except the static IP address of the host PC and
the 7I76E card.

The latency test is probably meaningless because the PC cannot
possibly service the base thread at 40 KHz. Only the servo thread is
required. To test with only the servo thread, run:

latency-histogram --nobase --sbinsize 1000

The ping times are quite bad also. If the PC has a Intel Ethernet interface chip,
follow the instructions for disabling irq coalescing in the hm2_eth manual page

man hm2_eth

Last edit: 09 May 2021 16:20 by PCW.

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serials errors when connecting with my mesa 7i76 card

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