Subject: Re: new IRQ scalability changes in 2.3.48
From: Linus Torvalds (torvalds@transmeta.com)
Date: Sun Mar 19 2000 - 10:28:14 PST
On Sun, 19 Mar 2000, Rogier Wolff wrote:
>
> How about making "preemptive kernel" a "default-on" option on 2.4pre
> and a "default-off" option on the real 2.4 kernel?
No, it's definitely too experimental - there are places that play games
with the irq state etc, so there can be things that need quite a lot of
debugging to get the threaded-UP case working fine.
Maybe during 2.5.x we can back-port the changes to a 2.4.x release, and
give people a three-way choice: UP, threaded-UP or SMP. But it's not a
2.4.x development thing.
Linus
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