Re: [PATCH] x86_64 write apic id fix

[Mika PenttilÃ]

Vivek Goyal wrote:

> o Apic id is in most significant 8 bits of APIC_ID register. Current code
>  is trying to write apic id to least significant 8 bits. This patch fixes
>  it.
>
> o This fix enables booting uni kdump capture kernel on a cpu with non-zero
>  apic id.
>
> Signed-off-by: Vivek Goyal <vgoyal@xxxxxxxxxx>
> ---
>
>  
What difference does it make in the first place? In 
APIC_init_uniprocessor() you write back the apic id read before from 
processor, not from mp table (because you wouldn't be in 
APIC_init_uniprocessor() otherwise).

--Mika

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