Re: 2.6.12->2.6.13-rc6 SMT changes -- intentional?

[Petr Vandrovec]

Phil Oester wrote:
> Just booted a box on 2.6.13-rc6, and noticed that it now only reports
> a single processor, whereas on 2.6.12.4 it reports two.  While there
> is only one physical processor, I wonder if this change was intentional,
> since I can't find anything in the changelog about SMT changes.
>
> Below is dmesg output from each kernel.
>
> Phil
>
> DMI 2.3 present.
> ACPI: RSDP (v000 DELL                                  ) @ 0x000fec00
> ACPI: RSDT (v001 DELL    GX280   0x00000007 ASL  0x00000061) @ 0x000fcc04
> ACPI: FADT (v001 DELL    GX280   0x00000007 ASL  0x00000061) @ 0x000fcc44
> ACPI: SSDT (v001   DELL    st_ex 0x00001000 MSFT 0x0100000d) @ 0xfffd3468
> ACPI: MADT (v001 DELL    GX280   0x00000007 ASL  0x00000061) @ 0x000fccb8
> ACPI: BOOT (v001 DELL    GX280   0x00000007 ASL  0x00000061) @ 0x000fcd2a
> ACPI: ASF! (v016 DELL    GX280   0x00000007 ASL  0x00000061) @ 0x000fcd52
> ACPI: MCFG (v001 DELL    GX280   0x00000007 ASL  0x00000061) @ 0x000fcdb9
> ACPI: HPET (v001 DELL    GX280   0x00000007 ASL  0x00000061) @ 0x000fcdf7
> ACPI: DSDT (v001   DELL    dt_ex 0x00001000 MSFT 0x0100000d) @ 0x00000000

> ********************************************
>
> DMI 2.3 present.
> Intel MultiProcessor Specification v1.4
>     Virtual Wire compatibility mode.

It looks like that ACPI is gone...  Can you recheck your .config that
you still have ACPI enabled?
							Petr

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