Which of the Following Statements Is Not True About Spinlocks

question 4

Multiple Choice

Which of the following statements is not true about spinlocks in Linux?

• A) Spinlocks cannot be used on single processor machines.
• B) A thread may disable kernel preemption on Symmetric Multi Processing machines instead of acquiring spinlocks.
• C) A thread that acquires a spinlock cannot acquire the same lock a second time without first releasing the lock.
• D) The Linux kernel is designed so that the spinlock is held only for only short durations.

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