Roberto Ragusa wrote:
Kevin J. Cummings wrote:
On 12/17/2009 12:51 PM, Mark Ryden wrote:
My question is:
1) In Fedora 12 32 bit default installation , does the kernel knows
more than 3 GB of RAM ? what is the limit ?
The same. It uses what the BIOS tell it is available, unless you run a
PAE kernel. The Physical Address Extensions allow you to address the
full amount of your RAM.
And the PAE kernel will be installed by default.
So the 32 bit Fedora could be considered without limit too.
IIRC 36 bits, or 64GB, reasonable design for a number chosen decades ago. Still
a reasonable size for anything but servers, most motherboards support 16-24GB
max, and only half of that if you use affordable 2GB memory instead of 4GB.
The PAE kernel allows use of the NX bit, to prevent execution of non-program
memory areas.
--
Bill Davidsen <davidsen@xxxxxxx>
"We have more to fear from the bungling of the incompetent than from
the machinations of the wicked." - from Slashdot
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