Non maskable interrupt

In computing, a non-maskable interrupt (NMI) is a hardware interrupt that standard interrupt-masking techniques in the system cannot ignore. It typically occurs to signal attention for non-recoverable hardware errors. Some NMIs may be masked, but only by using proprietary methods specific to the particular NMI.

1. What is non-maskable interrupt example?
2. What is non-maskable interrupt NMI button?
3. Can non-maskable interrupts be disabled?
4. What is NMI in computer?

What is non-maskable interrupt example?

Common examples of non-maskable interrupt include types of internal system chipset errors, memory corruption problems, parity errors and high-level errors needing immediate attention. In a sense, a non-maskable interrupt is a way to prioritize certain signals within the operating system.

What is non-maskable interrupt NMI button?

Non-Maskable Interrupt (NMI) button - This section contains the Generate NMI to System button, which enables user to stop the operating system for debugging. ... Generating an NMI does not gracefully shut down the operating system, but causes the operating system to crash, resulting in lost service and data.

Can non-maskable interrupts be disabled?

An NMI is an interrupt which can't be disabled by clearing the CPU's interrupt enable flag, unlike most normal interrupts. Non-Maskable interrupts are typically used to signal events that require immediate action, such as a parity error, a hardware failure, or imminent loss of power.

What is NMI in computer?

Answer. NMI stands for Non-masked Interrupt. All of the regular interrupts that we normally use and refer to by number are called maskable interrupts. The processor is able to mask, or temporarily ignore, any interrupt if it needs to, in order to finish something else that it is doing.