Re: [PATCH]O18.1int

From: Måns Rullgård
Date: Mon Aug 25 2003 - 06:16:47 EST


Con Kolivas <kernel@xxxxxxxxxxx> writes:

>> Vanilla test1 has the spin effect. Test2 doesn't. I haven't tried
>> vanilla test3 or test4. As I've said, the O16.2-O16.3 patch
>> introduced the problem. With that patch reversed, everything is
>> fine. What problem does that patch fix?
>
> It's a generic fix for priority inversion but it induces badness in smp, and
> latency in task preemption on up so it's not suitable.

Now I'm confused. If that patch is bad, then why is it in O18?

--
Måns Rullgård
mru@xxxxxxxxxxxx

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