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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. In operating systems, an interrupt storm is an event during which a processor receives an inordinate number of interrupts that consume the majority of the processor's time. Interrupt storms are typically caused by hardware devices that do not support interrupt rate limiting. Because interrupt processing is typically a non-preemptible task in time-sharing operating systems, an interrupt storm will cause low perceived system responsiveness, or even appear to be a complete system freeze. This state is commonly known as live lock. In such a state, the system is spending so much time processing interrupts that it is not completing any other work.