Messages in this thread | | | Date | Wed, 03 Dec 2003 15:30:10 -0500 | From | Ethan Weinstein <> | Subject | Re: HT apparently not detected properly on 2.4.23 |
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Mike Fedyk wrote:
> Depending on the logical addressing of your processors, CONFIG_NR_CPUS=8 may > work in this case too. > > Some processors/motherboards logically address the CPUs other that 0-3 if > there are 4 processors. > > Currently CONFIG_NR_CPUS needs to be big enough to hold the largest logical > processor number.
Thanks. This rings a bell, I seem to remember what I thought to be "impossible numbering" on the CPUs such as "CPU7" or somesuch in a dmesg.. Will have to look through logs. I'll raise CONFIG_NR_CPUS and see what I get. Now, the question is, why do we only interrupt on CPU0 on this pasrticular box|chipset with a vanilla kernel? ACPI problem? My SMP G4 ppc has an option in menuconfig: "distribute interrupts on all CPUs by default", the x86 has no such option.
Ethan
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