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Re: CVS commit: src/sys/arch/x86/x86

2008/5/7 Joerg Sonnenberger <>:
> On Wed, May 07, 2008 at 06:52:05PM +0900, Takayoshi Kochi wrote:
>  > What's the matter without ioapic when you run uniprocessor?
>  The current code enables the lapic all the time and I had a lot of
>  issues on various systems with interrupt delivery. This is even worse if
>  you don't process the MPBIOS tables, as those descripe how to setup the
>  virtual wire mode.

Why do you enable lapic all the time?
There are 486s that don't have lapic and there are many P5+ systems
that lapic is embedded in the processors but the system do not have

I just thought that we can just ignore MPBIOS and use only legacy
interrupt infrastructure.

Maybe I'm understanding you wrong.
Takayoshi Kochi

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