linuxlinux-kernellinux-device-driver

Understanding kernel message 'nobody cared (try booting with the "irqpoll" option)'


I'm trying to understand the meaning of the following message:

irq N:nobody cared (try booting with the "irqpoll" option)

Does this mean the IRQ handler not processing the response even it has gotten the interrupt? Or that the scheduler failed to call an irq handler?

In what condition is this happening?


Solution

  • it means that either no handler is registered for that irq or the one that is returned status indicating that the irq was not for him (from hardware he is supporting) in case of shared interrupts probably a faulty HW/FW or buggy driver