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While messing around, I thought I would test what happens if I were to raise the IRQL to DISPATCH_LEVEL and run a really long running loop (multiple seconds long). What I would have expected to happen is that no other threads would be able to be scheduled on that one core. What happened instead is that it seemed that no threads were able to run on either core during this period. Why is this? I'm really new to drivers and kernel mode, so please forgive me if I've missed something really obvious.
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