Re: CPU Detection Problem

[William C. <wc...@nc...>]

Benedikt Penner wrote:
> Hi, everyone!
> 
> I'm trying to get oprofile working... well it works, but the only event i
> can profile is the timer event as oprofile doesn't detect my cpu correctly.
> The system is a IBM T30 with a Pentium 4m with Red Hat Enterprise Linux 4.
> I have tried several versions but none works.
> 
> Has anybody an idea?

The kernel is responsible for detecting the particular version of the processor 
available and the local apic to work on the machine. Look through the 
/var/log/messages to see whether the apic is available or being disabled. This 
seemed to be disabled on a number of laptops.

What is the information from /proc/cpu? Could check whether that can be 
identified by the oprofile kernel module.

Might tried using using an SMP kernel on the machine?

-Will


> 
> Thanks a lot
> 
> 
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