Re: Fujitsu Siemens TX600 S3 performance issue

On Wed, 7 Feb 2007, John Baldwin wrote:

>>
>> When booting with
>>
>> hint.lapic.10.disabled=1
>> hint.lapic.12.disabled=1
>> hint.lapic.14.disabled=1
>>
>> in /boot/device.hints the machine comes up to the login prompt on the
> console and than freezes completely.  The same thing happens when I disable
> APIC ID 14 only.
>> Here is the verbose boot log.  It is pretty long.  But I thought it might
> show some interesting information.
>
> Ah, I have a bug with the 'hint.lapic' stuff. :(  Add the patch below and then
> try testing with 'hint.lapic' again.
>

I have applied the patch.  The system is fast using an SMP kernel when
only one CPU is enabled.
As soon as the second CPU gets enabled it becomes slow again.

Ludger

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