Hi... On Sun, Jul 24, 2011 at 11:48, santhosh kumars <karuna.linux@gmail.com> wrote: ......
Here is my question like ,If do_IRQ() disables the interrupt delivery on the line(I am assuming it disables the interrupt delivery to all other processors on that line),then what about the other devices which are sharing same interrupt line and trying to send interrupts to processors.
IIRC, it is "queued"....meaning, it will be sent at the earliest moment possible once it is back enabled. PS: I remember there is difference between disabled and "masked"...disabled is like "temporary shut down" while masked is like "no way you can get in...unless I say so...so no queue"... CMIIW people... -- regards, Mulyadi Santosa Freelance Linux trainer and consultant blog: the-hydra.blogspot.com training: mulyaditraining.blogspot.com