Comment 37 for bug 129226

My Dell XPS M1330 enables also one core after suspend. I've got an uptodate Gutsy with Kernel 2.6.22-12
Here my /var/log/messages

Sep 27 02:40:06 kingslanding kernel: [ 0.458656] Enabling non-boot CPUs ...
Sep 27 02:40:06 kingslanding kernel: [ 0.459285] atkbd.c: Unknown key pressed (translated set 2, code 0x88 on isa0060/serio0).
Sep 27 02:40:06 kingslanding kernel: [ 0.459291] atkbd.c: Use 'setkeycodes e008 <keycode>' to make it known.
Sep 27 02:40:06 kingslanding kernel: [ 0.459634] atkbd.c: Unknown key pressed (translated set 2, code 0x88 on isa0060/serio0).
Sep 27 02:40:06 kingslanding kernel: [ 0.459640] atkbd.c: Use 'setkeycodes e008 <keycode>' to make it known.
Sep 27 02:40:06 kingslanding kernel: [ 0.459934] SMP alternatives: switching to SMP code
Sep 27 02:40:06 kingslanding kernel: [ 0.460182] Booting processor 1/2 APIC 0x1
Sep 27 02:40:06 kingslanding kernel: [ 0.471233] Initializing CPU#1
Sep 27 02:40:06 kingslanding kernel: [ 0.547518] Calibrating delay using timer specific routine.. 4387.96 BogoMIPS (lpj=8775936)
Sep 27 02:40:06 kingslanding kernel: [ 0.547532] CPU: L1 I cache: 32K, L1 D cache: 32K
Sep 27 02:40:06 kingslanding kernel: [ 0.547537] CPU: L2 cache: 4096K
Sep 27 02:40:06 kingslanding kernel: [ 0.547542] CPU 1/1 -> Node 0
Sep 27 02:40:06 kingslanding kernel: [ 0.547546] CPU: Physical Processor ID: 0
Sep 27 02:40:06 kingslanding kernel: [ 0.547549] CPU: Processor Core ID: 1
Sep 27 02:40:06 kingslanding kernel: [ 0.548720] Intel(R) Core(TM)2 Duo CPU T7500 @ 2.20GHz stepping 0a
Sep 27 02:40:06 kingslanding kernel: [ 0.551845] ACPI Error (psloop-0136): Found unknown opcode FE at AML address ffffc20000ab23ca offset 7, ignoring [20070126]
Sep 27 02:40:06 kingslanding kernel: [ 0.551857] ACPI Error (psloop-0136): Found unknown opcode 16 at AML address ffffc20000ab23cc offset 9, ignoring [20070126]
Sep 27 02:40:06 kingslanding kernel: [ 0.551871] ACPI Error (psloop-0136): Found unknown opcode 19 at AML address ffffc20000ab23d0 offset D, ignoring [20070126]
Sep 27 02:40:06 kingslanding kernel: [ 0.551888] ACPI Error (psargs-0355): [C\376\377^I] Namespace lookup failure, AE_NOT_FOUND
Sep 27 02:40:06 kingslanding kernel: [ 0.551899] ACPI Error (psparse-0551): Method parse/execution failed [\_PR_.CPU1._PCT] (Node ffff81007cfa3d60), AE_NOT_FOUND
Sep 27 02:40:06 kingslanding kernel: [ 0.551983] ACPI Exception (processor_perflib-0170): AE_NOT_FOUND, Evaluating _PCT [20070126]
Sep 27 02:40:06 kingslanding kernel: [ 0.551989] CPU1 is up
Sep 27 02:40:06 kingslanding kernel: [ 0.562877] PCI: Enabling device 0000:00:1a.0 (0000 -> 0001)
Sep 27 02:40:06 kingslanding kernel: [ 0.562881] ACPI: PCI Interrupt 0000:00:1a.0[A] -> GSI 20 (level, low) -> IRQ 20