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Unexpected realtime delay on task 0 on a HP8300

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2 years 7 months ago #295800 by lrak
Replied by lrak on topic Unexpected realtime delay on task 0 on a HP8300
@rodw  & @cornholio

24 hours with out event with kernel driver
Code:
[color=#000000]# ethtool --show-eee enp2s0 [/color] EEE settings for enp2s0:        EEE status: enabled - inactive        Tx LPI: disabled        Supported EEE link modes:  100baseT/Full                                   1000baseT/Full        Advertised EEE link modes:  100baseT/Full                                    1000baseT/Full        Link partner advertised EEE link modes:  Not reported

So I reinstalled the r8168-dkms module - Put
options r8168 eee_enable=0
options r8168 aspm=0
in modeprobe.d/r8168-dkms.conf


Only thing left - I see wake-on turned on??
Code:
Supports Wake-on: pumbg  Wake-on: g

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2 years 7 months ago - 2 years 7 months ago #296967 by lrak
Replied by lrak on topic Unexpected realtime delay on task 0 on a HP8300
Well problem is still here - changed out the realtek NIC  with an intel

Ethernet controller: Intel Corporation I210 Gigabit Network Connection (rev 03)

Uses the igb module.

I don't think it is the network card - How can I get a list of running tasks when the error gets fired off?
and/or the time?





 
Last edit: 2 years 7 months ago by lrak.

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2 years 7 months ago #297011 by PCW
Replied by PCW on topic Unexpected realtime delay on task 0 on a HP8300
Do you have irq coalescing disabled?
(this is needed for Intel MACs)

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2 years 7 months ago #297147 by lrak
Replied by lrak on topic Unexpected realtime delay on task 0 on a HP8300
auto enp2s0
iface enp2s0 inet static
address 192.168.10.1/24
hardware−irq−coalesce−rx−usecs 0

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2 years 7 months ago #297185 by PCW
Replied by PCW on topic Unexpected realtime delay on task 0 on a HP8300
Have you tried this:

forum.linuxcnc.org/38-general-linuxcnc-q...irq-affinity?start=0

Basically using isolcpus to isolate a core for LinuxCNC and then pinning the Ethernet IRQ to that core
The following user(s) said Thank You: lrak

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2 years 6 months ago #297410 by lrak
Replied by lrak on topic Unexpected realtime delay on task 0 on a HP8300
@PCW
I can try it - but it would seem to me that if it was an IRQ that it would happen more often than every day or two?

If there was a way to tag the time it happens, I can look through the logs for some regular task happening..

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