[LAU] why now rtirq needs restart?

From: al3xu5 / dotcommon <dotcommon@email-addr-hidden>
Date: Tue Apr 28 2020 - 18:18:29 EEST

Hi all

Since years I have had rtirq perfectly working on my Devuan/Debian DAW (sysV
init).

Now with Devuan3/Debian10, after booting the RT priority are not set.
Only after restarting rtirq, priority are as expected (see below).

The rtirq service was started during boot, but without setting priorities.

I cannot explain why. Any ideas?

Thans in advance
Regards

~~~
$ sudo /etc/init.d/rtirq status

  PID CLS RTPRIO NI PRI %CPU STAT COMMAND
   57 FF 50 - 90 0.0 S irq/9-acpi
   79 FF 50 - 90 0.0 S irq/12-i8042
   80 FF 50 - 90 0.0 S irq/1-i8042
   81 FF 50 - 90 0.0 S irq/8-rtc0
  129 FF 50 - 90 0.0 S irq/17-ehci_hcd
  174 FF 50 - 90 0.0 S irq/27-xhci_hcd
        ...
  411 FF 50 - 90 0.0 S irq/18-ohci_hcd
  865 FF 50 - 90 0.0 S irq/20-snd_ice1
  905 FF 50 - 90 0.0 S irq/37-radeon
 1995 FF 50 - 90 0.1 S irq/22-eth0
    3 TS - 0 19 0.1 S ksoftirqd/0
   23 TS - 0 19 0.1 S ksoftirqd/1
   32 TS - 0 19 0.1 S ksoftirqd/2
   41 TS - 0 19 0.1 S ksoftirqd/3

$ sudo /etc/init.d/rtirq restart

Setting IRQ priorities: stop [rtc0] irq=8 pid=81: OK.
Setting IRQ priorities: stop [snd_ice1712] irq=20 pid=865: OK.
Setting IRQ priorities: start [rtc0] irq=8 pid=81 prio=90: OK.
Setting IRQ priorities: start [snd_ice1712] irq=20 pid=865 prio=85: OK.

$ sudo /etc/init.d/rtirq status

  PID CLS RTPRIO NI PRI %CPU STAT COMMAND
   81 FF 90 - 130 0.0 S irq/8-rtc0
  865 FF 85 - 125 0.0 S irq/20-snd_ice1
   57 FF 50 - 90 0.0 S irq/9-acpi
   79 FF 50 - 90 0.0 S irq/12-i8042
   80 FF 50 - 90 0.0 S irq/1-i8042
  129 FF 50 - 90 0.0 S irq/17-ehci_hcd
  174 FF 50 - 90 0.0 S irq/27-xhci_hcd
        ...
  411 FF 50 - 90 0.0 S irq/18-ohci_hcd
  905 FF 50 - 90 0.0 S irq/37-radeon
 1995 FF 50 - 90 0.1 S irq/22-eth0
    3 TS - 0 19 0.1 S ksoftirqd/0
   23 TS - 0 19 0.1 S ksoftirqd/1
   32 TS - 0 19 0.1 S ksoftirqd/2
   41 TS - 0 19 0.1 S ksoftirqd/3
~~~

-- 
al3xu5
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Received on Wed Apr 29 04:15:01 2020

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