Re: SMP and ACPI.

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On Sat, Mar 15, 2008 at 4:25 PM, Thomas Petazzoni <thomas.petazzoni@xxxxxxxxxxxxxxxxxx> wrote:
Le Fri, 14 Mar 2008 08:43:21 +0530,
"Pranav Peshwe" <pranavpeshwe@xxxxxxxxx> a écrit :

>          My question is not related to kernel programming as such,
> although it is certainly related to kernel internals.
> I have an Intel Dual Core cpu on which i wish to run linux 2.6. I
> compiled a custom 2.6.24.3 and booted into it, only to find that the
> system was unusable due to kacpid and kacpid_notify taking up almost
> all the CPU time. And since, these are kernel threads (CMIIW), i
> could only renice but not kill  them :( I tried enabling/disabling
> power mgmt options like frequency scaling etc, but no help. Then,I
> turned ACPI off using the kernel parameter, but that left me with a
> single CPU running. Any way, the system malperforms.

Sounds like a bug. Was it working with a previous version of the
kernel ?

First, I would suggest to try the latest 2.6.25-rc, and see if the
problem still exists.

Hi Thomas,
                    Thanks for the reply. I'd tried the one which comes with Fedora 8 - 2.6.23.1, and it had the same problem. Will check with a still older version on Monday.
A little googling tells me that, a lot many people have faced this situation since long (at least since 2004 (2.6.9)), although the bugs might be different.
I hope, there is some way out. Otherwise, the option i'm thinking of is - running the Redmond OS as host and installing the linux server in a uniprocessor virtual machine.

Suggestions gladly welcome.

TIA.

Best regards,
Pranav

------------------------------------------------------------------------------
I am now convinced that theoretical physics is actually philosophy.
-- Max Born



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