Re: unconsistency of state of irq

2010-08-16 Thread Pei Lin
2010/8/15 Parmenides mobile.parmeni...@gmail.com: Hi,   For each irq descriptor, there is a state bit IRQ_DISABLED indicating whether corresponding IRQ is masked. But, when checking the source code, I find that the function mask_and_ack_8259A(), which is responsible for acknowledge the PIC

unconsistency of state of irq

2010-08-14 Thread Parmenides
Hi, For each irq descriptor, there is a state bit IRQ_DISABLED indicating whether corresponding IRQ is masked. But, when checking the source code, I find that the function mask_and_ack_8259A(), which is responsible for acknowledge the PIC and mask corresponding bit in it, doesn't affect