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School of Computer Science & Engineering
University of New South Wales
Advanced Operating Systems
COMP9242 2002/S2
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- Disabling interrupts (CLI -- STI).
- Unsuitable for multiprocessor systems.
- Spin locks.
- Busy-waiting wastes cycles.
- Lock objects.
- Flag indicates object is locked.
- Manipulating lock requires mutual exclusion.
Gernot Heiser
2002-10-11
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