Subject: Re: SMP kernel configuration question?
From: Benjamin Herrenschmidt (benh@kernel.crashing.org)
Date: Sat Feb 16 2002 - 12:26:10 MST
>
>Hi,
>
>I have never configured a kernel for SMP before.
>
>I turned on the obvious CONFIG_SMP=y in the .config but was prompted if I
>would like to distribute interrupts (IRQs) across all CPUs.
>
>What is the recommended setting for:
>
>CONFIG_IRQ_ALL_CPUS
>
>Any guidance here would be greatly appreciated.
Leave it to N. ideally, you should enable it, but I have experienced
lockups when this feature is enabled, I haven't yet figured out what's
going on (could be related to the lockup some users are experiencing
with SMP + HIGHMEM on some dual 800, let me know if you see the same).
Ben.
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