[ale] Major Hdwe upgrade foils LVM

[JK]

hscast at charter.net wrote:
> ---- Jim Popovitch <yahoo at jimpop.com> wrote:
>> On Sun, Aug 17, 2008 at 5:13 PM,  <hscast at charter.net> wrote:
>>> The BIOS sees all 4GB and when I boot to Fedora 9 system recovery
>>> it reports about 4GB less for whatever.
>> Does the Fedora 9 kernel support Large Memory?   IIRC, 4GB of mem 
>> needs a non-standard kernel.

> I thought it did. Doesn't it look at 4GB on a double core processor
> as 2GB/core?

No, on SMP all CPUs have access to all RAM. The main difference
between an SMP system and a single-CPU system is that the SMP box can
run multiple processes literally simultaneously, instead of only faking
simultaneity via context-switching.  Naturally that has an impact
on the kernel, but it's invisible to users, and doesn't affect
how userland code sees memory.

-- JK

-- 
I do not particularly want to go where the money is -
  it usually does not smell nice there. -- A. Stepanov