OProfile is fine-grained and can collect samples for a set of instructions, or for function, system call, or interrupt handlers.
An interrupt handler reads the register and provides messages indicating which memory bank caused the parity error.
display stop interrupt handler
This feature is used by most interrupt handlers, because it allows them to process IRQs of the same type serially.
Who's calling my interrupt handler if I have both CIAs turned off?
Some of the programs that operate in kernel mode include interrupt handlers and kernel processes.