Messages in this thread | | | Date | Mon, 21 Apr 2008 21:44:34 +0200 | From | Andi Kleen <> | Subject | Re: PCI MSI breaks when booting with nosmp |
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Pavel Machek wrote: > On Mon 2008-04-21 20:45:05, Andi Kleen wrote: >> Jesse Barnes <jbarnes@virtuousgeek.org> writes: >>> Ok, I see this too on my desktop machine. It looks like we're not getting >>> interrupts setup correctly in the nosmp case. Still digging through to see >>> why though... >> NoSMP disables the io-apic and a lot of modern systems don't work >> without APIC. > > Are you sure? I still boot DOS on very recent boxes, and they seem to > work. How can PC-compatible machine require an APIC?
The machine doesn't, but the drivers do. DOS likely doesn't use all hardware.
-Andi
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