Error while Running Linuxcnc

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27 Sep 2024 15:22 #310897 by PCW
Replied by PCW on topic Error while Running Linuxcnc
You might also add:

pcie.aspm=0 r8168.eee_enable=0 pcie_aspm=off idle=poll

To your kernel command line as this has helped on other systems

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28 Sep 2024 03:21 - 28 Sep 2024 03:32 #310941 by rajsekhar
I added all power management option for r8168/pcie to grub, reboot.

After that the histogram run for 10 minutes.

Histogram attached. File name having 613.png (CPU=1 interrupt) and 704.png (CPU=0 interrupt).

There is clear difference.

Note: with CPU=1 interrupt, system running now for 30 min, hm2 read.tmax=1904389.

So IRQ affinity is must.

 
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Last edit: 28 Sep 2024 03:32 by rajsekhar. Reason: picture add

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28 Sep 2024 09:52 #310955 by tommylight
Use this
latency-histogram --nobase --sbinsize 1000 --show
You have latency excursions outside the visible area on both screenshots, and IRC you do not need the base thread.

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28 Sep 2024 14:53 #310981 by rajsekhar
Well I attached the histogram..I really donot understand it..is it acceptable for linuxcnc?

And one new issue arises. The computer getting restarted automatically while LCNC is running. I have noticed the monitor goes blank first and then system shuts down/ restarts. Any clue, why?
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28 Sep 2024 15:16 #310984 by tommylight
Yes that is OK.
As for restarting, in a terminal while LinuxCNC is running:
sensors
Check the resulting CPU temperature as that is one of the reasons the PC restarts, and so are failing power supply, failed main board capacitors (see if tops are bulged), failing memory or memory controller.

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28 Sep 2024 15:42 #310987 by rajsekhar
Sensors data below:
========================================
raycnc1@debian:~/Desktop$ sensors
acpitz-acpi-0
Adapter: ACPI interface
temp1:        +16.8°C  (crit = +20.8°C)
temp2:        +27.8°C  (crit = +119.0°C)
temp3:        +29.8°C  (crit = +119.0°C)

coretemp-isa-0000
Adapter: ISA adapter
Package id 0:  +47.0°C  (high = +84.0°C, crit = +100.0°C)
Core 0:        +47.0°C  (high = +84.0°C, crit = +100.0°C)
Core 1:        +47.0°C  (high = +84.0°C, crit = +100.0°C)

raycnc1@debian:~/Desktop$
==================================================
CPU core temp maximum I found while randomly running sensor command is 53 degree.

But why display is going blank? Any possibility of driver/software issue?? I am doubtful about the SMPS though (it is a normal 350 watt).

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11 Oct 2024 08:30 #311799 by rajsekhar
Well I changed the power cables to repair the power issue, tested for 5 hour, running ok.

And I installed additional RAM in 2nd slot. It worked, at least I think so. A new histogram attached with two 8gb RAM.

But I could not do the IRQ affinity till date.
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