On Mon, Oct 04, 2004 at 09:15:04PM +0900, Atsushi Nemoto wrote:
> >>>>> On Tue, 3 Aug 2004 12:40:48 -0700, Jun Sun <jsun@mvista.com> said:
> jsun> Try the latest kernel. I checked preemption around 2.6.5 time
> jsun> and I believe all the obvious problems are fixed then.
>
> Hi. Now I'm looking current (2.6.9-rc1) code.
>
> It lacks some preempt_disable/preempt_enable which were in
> preempt-patch for 2.4 kernel. Are these all unnecessary at all?
>
They are necessary.
> For example, fpu-emulation is not preemptive-safe, isn't it?
>
That is correct.
I think the best thing to do right now is to go through
2.4 preemption patch and pick up the missing ones for 2.6.
It will probably take me a little given other things on my hand.
I strongly enourage someone else to take a shoot at it. The latest
2.4 MIPS preemption patch seems to be
http://linux.junsun.net/patches/oss.sgi.com/experimental/030304-b.preempt-mips.patch
Jun
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