Re: [Linux-ia64] Help with Ingo scheduler on IA64

Ingo Molnar
2002-01-21T22:30:32Z

On Mon, 21 Jan 2002, David Mosberger wrote:

> Ingo> oh, i see. Why were irqs enabled explicitly? The old scheduler
> Ingo> called switch_to() with irqs enabled, all the time.
>
> Eh, that's not true. [...]

my 'Why were irqs enabled explicitly' question referred to the ia64
switch_to() code, which, if i understand this thread correctly, enables
interrupts internally.

Besides causing the current bug, it was superfluous in the old scheduler
as well, so i'm only wondering aloud - perhaps there were more subtle
reasons as well?

Ingo