lkml.org 
[lkml]   [2000]   [Dec]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Activating APIC on single processor
Hi

I have try to activate APIC in my BIOS, but I didn't have this option.
Have you ever try it?

Tanks
Francis Pieraut


Francis Pieraut

On Thu, 28 Dec 2000, John Levon wrote:

> On 28 Dec 2000, David Huggins-Daines wrote:
>
> > <fpieraut@casi.polymtl.ca> writes:
> >
> > > I activate APIC interruption with the configuration of linux kernel
> > > 2.4.0test-11. In the linux kernel configuration under processor type and
> > > features I activate "APIC and IO-APIC support on uniprocessor", and I
> > > desactivate "Symmetric multi-processing support". The only way I found to
> > > check APIC activation is looking into /proc/interrupts, no "IO-APIC" can
> > > be found there. So I read IO-APIC.txt and I suppose there sould be
> > > conflicts with IRQ of my PCI cards. So I remove all my PCI cards and still
> > > have no APIC interrupt.
> > > Is there another way to check APIC activation?
> > > Am-I doing to right things to activate IO-APIC?
> >
> > You might not actually have an IO-APIC or even a local APIC. This is
> > the case with the Mobile PIII for instance (I puzzled over this myself
> > for a long time).
> >
> > To find out for sure, run:
> >
> > grep 'flags.*apic' /proc/cpuinfo
>
> This isn't for sure. I bet you *do* have a local APIC.
>
> This flag is missing on a Pentium II here - I think the BIOS disables
> it. However, it can be enabled in the normal way just fine.
>
> The presence of an IO-APIC is a different matter.
>
> thanks
> john
>
> --
> "The majority of the stupid is invincible and guaranteed for all time. The
> terror of their tyranny, however, is alleviated by their lack of consistency."
> - Albert Einstein
>

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 12:52    [W:0.035 / U:9.164 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site