Messages in this thread | | | Date | Mon, 7 Oct 2002 05:41:21 -0700 (PDT) | From | Amol Lad <> | Subject | wake_up from interrupt handler |
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Hi, I have a kernel thread which did add_to_wait_queue() to wait for an event. The event for which above thread is waiting occurs in an interrupt handler that calls wake_up() to wake the above thread. Now I am faced with a 'lost wakeup' problem, in which the kernel thread checks whether event occured, he finds it to be 'not-occured' but before calling add_to_wait_queue(), interrupt handler detects that the event has occured and calls wake_up(). My thread sleeps forever.
I know some new APIs are provided in recent 2.5 kernel, but how to avoid this in 2.4.18
please CC me
Thanks Amol
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