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SubjectRe: Scheduling of low-priority background processes

I foolishly muttered:

> What if the SCHED_IDLE behaviour only applies when the process
> is in userspace? Couldn't scheduler compare the process's
> instruction pointer against the kernel/user break point, and
> if the process is in the kernel, then just treat it like a
> normal process?

...eek. I clearly wasn't thinking straight with that one. There
isn't a (non-disgusting) way of determining in the scheduler if a
process is executing a syscall apart from sys_sched_yield, is there.

Carry on...

- Kevin.

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