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SubjectRe: kernel threads
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> schedule the call to kernel_thread using tq_schedule

You still want to use daemonzie

> - is there no need to call daemonize in the second variant - if yes why?

A task always has a parent, it'll just be a random task that ran the
kernel_thread request - in fact it might be a kernel thread and then
I dont guarantee what will occur. In fact I wouldnt try the tq_schedule one

> - can i do both variants during interupt time (when there is no valid
> current)?

No, but you can create a thread ready in case its needed then wake it from
an IRQ
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