Re: SMP with ACPI disabled
On Thu, 05 Oct 2006 15:54:39 +1300
Matt Parlane <email@example.com> wrote:
> On 10/5/06, Roberto C. Sanchez <firstname.lastname@example.org> wrote:
> > > I have a dual Xeon machine that was running fine on all four
> > > cores, but then I started getting some filesystem corruption
> > > because of dodgy RAID drivers. I disabled ACPI, which fixed
> > > this, but now I am down to running on two cores.
> > >
> > > My question is, is there any way to run SMP (that will give me all
> > > four cores) without ACPI?
> > If you are running on two cores, and you see both in /proc/cpuinfo,
> > then you have SMP enabled.
> I can see two cores in /proc/cpuinfo, but I used to see four, since
> the processors are both dual core (sorry, I should have mentioned
> I'm not sure if I'm only running on one physical processor or one core
> from each processor, but I'm definitely only running on two cores, and
> I was running on four cores before, and the only change I made was
> disabling ACPI.
> I have the dmesg output from before (with ACPI) and now (without ACPI)
> if anyone is interested:
I don't have an answer.I thought ACPI was for power management, esp
laptops, a heavily used server doesn't seem to me to need power
management. I have a smp PIII Gz that gives me fits, IRQ allocation on
the pci slots. This is a APIC issue, and the easiest solution was not
to use certain cards in the box.
Is that two cpu's with hyperthreading or two core duo cpu's?