Re: Sleeping thread not receive signal until it wakes up

[Lee Revell]

On 3/7/07, linux-os (Dick Johnson) <linux-os@xxxxxxxxxxxx> wrote:
> Interruptible_sleep_on is interruptible, but for your task to
> actually be awakened and your alarm handler to get some CPU,
> it needs to be scheduled. If the BKL (big kernel lock) is
> held, it won't be scheduled until it is released.

You can schedule while holding the BKL and it will be dropped and reacquired.

Lee
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