soft lockup - CPU#0 stuck for 61s! problem
From: Russell King - ARM Linux <hidden>
Date: 2010-06-28 10:29:31
From: Russell King - ARM Linux <hidden>
Date: 2010-06-28 10:29:31
On Mon, Jun 28, 2010 at 03:50:24PM +0530, Harishkumar V wrote:
Will capture the further messages and mail u. Why an IRQ got struck, is their a way to handle this....
Normally, the kernel will disable the interrupt so the system can continue to (mostly) function. However, people like to return IRQ_HANDLED from interrupt handlers, even when they've found nothing to do. This prevents the kernel from rescuing you from the stuck-IRQ problem. Interrupt handlers are supposed to return IRQ_HANDLED if they did something to handle the IRQ, or IRQ_NONE if they found nothing to do. I can't say much more than that - I've no idea what hardware you're running the kernel on, and therefore I can't guess what IRQ92 might be.