Watchdog has bit!

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6 years 4 months ago #171418 by little_sparky
Replied by little_sparky on topic Watchdog has bit!
To reconfigure eth0 do I use:
Code:
auto eth0 allow-hotplug eth0 iface eth0 inet dhcp

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6 years 4 months ago #171427 by Mike_Eitel
Replied by Mike_Eitel on topic Watchdog has bit!
Give it a try. Should work.
Sorry to many different linux versions to be sure..

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6 years 4 months ago #171541 by little_sparky
Replied by little_sparky on topic Watchdog has bit!
Sadly still getting the message.

I’m honestly not sure what to do now. Should I buy a new computer? Or how else can I pinpoint the fault?

This is really starting to become a nightmare

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6 years 4 months ago #171544 by PCW
Replied by PCW on topic Watchdog has bit!
What ping times do you get if you ping the 7I76E card?

Can you post your hal/ini files?

What does

ethtool -c eth1

report?

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6 years 4 months ago #171554 by little_sparky
Replied by little_sparky on topic Watchdog has bit!
ethtool didnt seem to work. it said command not found
Code:
jonty@jonty:~$ ethtool -c eth1 bash: ethtool: command not found jonty@jonty:~$ ethtool -c eth0 bash: ethtool: command not found

i am also not sure if i am using eth0 or eth1 but most things point towards eth0.

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6 years 4 months ago #171555 by little_sparky
Replied by little_sparky on topic Watchdog has bit!
some extra information so see if it means anything.

latency test results.

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ip a
Code:
jonty@jonty:~$ ip a 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1 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: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000 link/ether 18:03:73:36:2f:1b brd ff:ff:ff:ff:ff:ff inet 10.10.10.11/24 brd 10.10.10.255 scope global eth0 valid_lft forever preferred_lft forever inet6 fe80::1a03:73ff:fe36:2f1b/64 scope link valid_lft forever preferred_lft forever

uname -r
Code:
jonty@jonty:~$ uname -r 4.9.0-12-rt-amd64

uname -a
Code:
jonty@jonty:~$ uname -a Linux jonty 4.9.0-12-rt-amd64 #1 SMP PREEMPT RT Debian 4.9.210-1 (2020-01-20) x86_64 GNU/Linux

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6 years 4 months ago #171556 by little_sparky
Replied by little_sparky on topic Watchdog has bit!
sorry here is the ping results too

from ping 10.10.10.10
Code:
jonty@jonty:~$ ping 10.10.10.10 PING 10.10.10.10 (10.10.10.10): 56 data bytes 64 bytes from 10.10.10.10: icmp_seq=0 ttl=64 time=0.161 ms 64 bytes from 10.10.10.10: icmp_seq=1 ttl=64 time=0.100 ms 64 bytes from 10.10.10.10: icmp_seq=2 ttl=64 time=0.084 ms 64 bytes from 10.10.10.10: icmp_seq=3 ttl=64 time=0.084 ms 64 bytes from 10.10.10.10: icmp_seq=4 ttl=64 time=0.099 ms 64 bytes from 10.10.10.10: icmp_seq=5 ttl=64 time=0.085 ms 64 bytes from 10.10.10.10: icmp_seq=6 ttl=64 time=0.098 ms 64 bytes from 10.10.10.10: icmp_seq=7 ttl=64 time=0.080 ms 64 bytes from 10.10.10.10: icmp_seq=8 ttl=64 time=0.098 ms 64 bytes from 10.10.10.10: icmp_seq=9 ttl=64 time=0.088 ms 64 bytes from 10.10.10.10: icmp_seq=279 ttl=64 time=0.109 ms 64 bytes from 10.10.10.10: icmp_seq=280 ttl=64 time=0.096 ms 64 bytes from 10.10.10.10: icmp_seq=281 ttl=64 time=0.105 ms 64 bytes from 10.10.10.10: icmp_seq=282 ttl=64 time=0.109 ms 64 bytes from 10.10.10.10: icmp_seq=283 ttl=64 time=0.105 ms 64 bytes from 10.10.10.10: icmp_seq=284 ttl=64 time=0.103 ms 64 bytes from 10.10.10.10: icmp_seq=285 ttl=64 time=0.118 ms 64 bytes from 10.10.10.10: icmp_seq=286 ttl=64 time=0.101 ms 64 bytes from 10.10.10.10: icmp_seq=287 ttl=64 time=0.101 ms 64 bytes from 10.10.10.10: icmp_seq=288 ttl=64 time=0.106 ms 64 bytes from 10.10.10.10: icmp_seq=289 ttl=64 time=0.097 ms 64 bytes from 10.10.10.10: icmp_seq=290 ttl=64 time=0.107 ms 64 bytes from 10.10.10.10: icmp_seq=291 ttl=64 time=0.102 ms 64 bytes from 10.10.10.10: icmp_seq=292 ttl=64 time=0.103 ms 64 bytes from 10.10.10.10: icmp_seq=293 ttl=64 time=0.105 ms 64 bytes from 10.10.10.10: icmp_seq=294 ttl=64 time=0.099 ms 64 bytes from 10.10.10.10: icmp_seq=295 ttl=64 time=0.102 ms 64 bytes from 10.10.10.10: icmp_seq=296 ttl=64 time=0.102 ms 64 bytes from 10.10.10.10: icmp_seq=297 ttl=64 time=0.107 ms ^C--- 10.10.10.10 ping statistics --- 298 packets transmitted, 298 packets received, 0% packet loss round-trip min/avg/max/stddev = 0.080/0.099/0.264/0.000 ms

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6 years 4 months ago #171559 by PCW
Replied by PCW on topic Watchdog has bit!
OK so you do not have ethtool
This can be remedied by

sudo apt-get install ethtool

Note that the interfaces file setting of IRQ coalescing will not work without ethtool
Though the ping time do look OK so it may not be needed with the particular chip
set used.

The Dell 990 uses a 82579LM Ethernet chip, and I have seen some reports of this
being buggy and unreliable for realtime not sure if this is the issue here

If it is an issue an add-in Ethernet card should fix the problem

On possible thing to check is if a slower servo thread helps, so you might try 2 ms
(2000000 ns) This will require changing all the PID P terms to 500

Reading the tmax values would also help.
From a terminal with LinuxCNC running:

halcmd show pin *.tmax

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6 years 4 months ago #171566 by little_sparky
Replied by little_sparky on topic Watchdog has bit!
updating the ethtool gave this.
Code:
jonty@jonty:~$ sudo apt-get install ethtool Reading package lists... Done Building dependency tree Reading state information... Done ethtool is already the newest version (1:4.8-1+b1). 0 upgraded, 0 newly installed, 0 to remove and 15 not upgraded. jonty@jonty:~$ ethtool -c eth1 bash: ethtool: command not found jonty@jonty:~$ ethtool -c eth0 bash: ethtool: command not found jonty@jonty:~$ sudo ethtool -c eth0 Coalesce parameters for eth0: Adaptive RX: off TX: off stats-block-usecs: 0 sample-interval: 0 pkt-rate-low: 0 pkt-rate-high: 0 rx-usecs: 0 rx-frames: 0 rx-usecs-irq: 0 rx-frames-irq: 0 tx-usecs: 0 tx-frames: 0 tx-usecs-irq: 0 tx-frames-irq: 0 rx-usecs-low: 0 rx-frame-low: 0 tx-usecs-low: 0 tx-frame-low: 0 rx-usecs-high: 0 rx-frame-high: 0 tx-usecs-high: 0 tx-frame-high: 0

i couldnt seem to get halcmd show pin *.tmax to give any values.

this is what came up.

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6 years 4 months ago #171600 by PCW
Replied by PCW on topic Watchdog has bit!
Sorry that's:

halcmd show param *.tmax

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