On Fri, 2005-04-08 at 21:44, Ingo Molnar wrote:
> * Daniel Walker <[email protected]> wrote:
>
> > I submitted a fix for this a while ago, I think ..
> > interruptible_sleep_on()'s are broken ..
>
> sleep_on() is a fundamentally broken interface, it only works on UP -
> but there it _does_ rely on the behavior your patch removes. (i.e.
> disabled interrupts until we hit schedule())
>
> the PREEMPT_RT kernel makes the limitations of sleep_on() even more
> apparent. The patch only removes the warning, it doesnt remove the race.
> To remove the race, sleep_on() usage should be converted to something
> else. (e.g. one of the wait_event() variants)
I know they aren't suppose to be used any more. However, there are 100+
of these calls in the kernel right now ..
Daniel
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