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    SubjectRe: when interrupt came, the kernel save pt_regs->eip always the same?
    On Sat, 13 Dec 2008, pl ice wrote:

    > HI,
    > These day i wanted get cpu context ,when interrupt came.BUT i
    > found when interrupt came kernel saved cpu context in struct pt_regs
    > and delivered to do_IRQ ,and i print the pt_regs->eip,they alway same
    > on the same interrupt?
    > The interrupt can come anytime,i think the eip will be very
    > different every time.BUT i debug kernel ,print eip in the function
    > do_IRQ,found it didn't run as i thought.Can anybody tell me why?

    If the cpu is idle, you have a higher probability that the idle function
    is in regs->eip


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      Last update: 2008-12-13 17:59    [W:0.019 / U:13.956 seconds]
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