On Sunday 17 August 2003 17:38, Jason Stubbs wrote: > On Sunday 17 August 2003 17:18, Dhruba Bandopadhyay wrote: > > Dhruba Bandopadhyay wrote: > > > To add more information it seems that on a fresh config ACPI is > > > accessible because SMP is on by default but as soon as you turn SMP off > > > ACPI section is locked and you can't get into it anymore. This is very > > > bad for my single processor laptop. :-( > > > > More information: > > > > This is now filed as bug [1]. Basically, the problem is that ACPI is > > dependent upon Local APIC being turned on. To me, this seems like a bad > > idea as my machine has no local APIC but requires ACPI. > > Damn, you're right. My machine has a local APIC, but when using it my > PCMCIA modem drops down to 1kb/s which really sux. > > I checked into the kernel config files and found on line 33 of > drivers/acpi/Kconfig: > > depends on IA64 || (X86 && ACPI_HT) > > I changed that to: > > depends on IA64 || X86 > > That's allowed me to remove the APIC stuff as well as ACPI Processor > Enumeration for HT - that I'm happy about to seeing I have an AMD! > Recompiling now and will let you know how it goes once I've rebooted. > Recompiled, rebooted and running fine. I'm about to add a comment to your bug report as soon as my password arrives. I can't imagine ACPI being bad on machines without HT or APIC since it's been in the 2.5 series for a long time and even backported to the 2.4 series. I'd say it's just a small bug by whomever did the bk3 patches. The HT ACPI bit wasn't in the previous one - seems like that was integrated incorrectly.
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