[LAU] why now rtirq needs restart?

al3xu5 / dotcommon dotcommon at autistici.org
Tue Apr 28 17:18:29 CEST 2020


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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