2003-09-07 14:06:12

by Scott Thomason

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Subject: Forcing CONFIG_X86_IO_APIC=n

I'd like to try forcing CONFIG_X86_IO_APIC=n while I test 2.6.0-test4,
but apparently some part of the kernel build re-runs my .config thru
something and keeps changing it back to 'y'. Is there any way to
accomplish this?
---scott


2003-09-08 09:42:31

by Rolf Eike Beer

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Subject: Re: Forcing CONFIG_X86_IO_APIC=n

Von Scott Thomason:

> I'd like to try forcing CONFIG_X86_IO_APIC=n while I test 2.6.0-test4,
> but apparently some part of the kernel build re-runs my .config thru
> something and keeps changing it back to 'y'. Is there any way to
> accomplish this?

eike@bilbo:/mnt/kernel/linux-2.6.0-test4> find . -name Kconfig | xargs grep -B 2 "depends .*X86_IO_APIC"
./drivers/pci/hotplug/Kconfig-config HOTPLUG_PCI_IBM
./drivers/pci/hotplug/Kconfig- tristate "IBM PCI Hotplug driver"
./drivers/pci/hotplug/Kconfig: depends on HOTPLUG_PCI && X86_IO_APIC && X86

Maybe you set HOTPLUG_PCI_IBM to yes?

Eike

2003-09-13 11:46:16

by Adrian Bunk

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Subject: Re: Forcing CONFIG_X86_IO_APIC=n

On Sun, Sep 07, 2003 at 09:06:10AM -0500, Scott Thomason wrote:
> I'd like to try forcing CONFIG_X86_IO_APIC=n while I test 2.6.0-test4,
> but apparently some part of the kernel build re-runs my .config thru
> something and keeps changing it back to 'y'. Is there any way to
> accomplish this?

You have to do the following:
- disable SMP support
- say "n" to "IO-APIC support on uniprocessors"

> ---scott

cu
Adrian

--

"Is there not promise of rain?" Ling Tan asked suddenly out
of the darkness. There had been need of rain for many days.
"Only a promise," Lao Er said.
Pearl S. Buck - Dragon Seed