milo wrote: ↑Sat Apr 11, 2020 5:17 pm
I think this means that thread_irq is enabled, right?
It means your kernel supports threaded irq's. It doesn't necessarily mean they are enabled; you still need to pass the 'threadirqs' flag to the kernel at boot time. You'll also want to make sure rtirq is installed so the priorities actually get set.
To check if it's working, run this command:
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$ ps -eLo pid,cls,rtprio,pri,nice,cmd | grep -i irq
If it returns a screenfull of information, it's working.
On the 'family' desktop, where I don't care, irq threading is not enabled. This is what it looks like when it's NOT working:
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trulan@kitchen ~ $ ps -eLo pid,cls,rtprio,pri,nice,cmd | grep -i irq
9 TS - 19 0 [ksoftirqd/0]
16 TS - 19 0 [ksoftirqd/1]
174949 TS - 19 0 grep --color=auto -i irq