--- Jeremy Knope <jerome (at mark) rainstormconsulting.com> wrote:
>
> We also have servers with > 4GB of RAM running 32-bit OS with no
> problems. I believe with an updated kernel, they can access most of
> this RAM, but a single process cannot address more than 4GB of RAM. I
> assume most people would be OK with this since most processes don't
> address that much at once, except maybe some caching or seriously huge
> databases.
To my knowledge, 32-bit CPU can only address 4GB of memory (physical +
virtual). However, if you run a 32-bit OS on a 64-bit CPU, you will need to
update the regular kernel to kernel-PAE version for the system to address more
than 4GB.
Search for kernel-PAE and/or visit this thread at CentOS for more info:
http://www.centos.org/modules/newbb/viewtopic.php?topic_id=8457
Regards,
Mike
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