* increase Linux kernel address space 3.5 G memory on Redhat Enterprise version 4
@ 2007-05-09 0:21 Minchen Zhao
2007-05-09 1:21 ` William Lee Irwin III
0 siblings, 1 reply; 2+ messages in thread
From: Minchen Zhao @ 2007-05-09 0:21 UTC (permalink / raw)
To: linux-kernel
Hi:
I am running Redhat Linux Enterprise version 4 update 4 on a dual-core
4G memory machine.
There are many references on the web talking about increasing default
user address space
to 3.5 G however lacking specific instrcutions. My questions:
1. What is the specific steps to be done for the kernel to support 3.5 G
address space?
2. Do I need to re-compile kernel to make this happen? If so, any
specific instruction?
thanks in advance.
P.S. Please cc to me (mzhao@lizotech-inc.com) to reply.
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: increase Linux kernel address space 3.5 G memory on Redhat Enterprise version 4
2007-05-09 0:21 increase Linux kernel address space 3.5 G memory on Redhat Enterprise version 4 Minchen Zhao
@ 2007-05-09 1:21 ` William Lee Irwin III
0 siblings, 0 replies; 2+ messages in thread
From: William Lee Irwin III @ 2007-05-09 1:21 UTC (permalink / raw)
To: Minchen Zhao; +Cc: linux-kernel
On Tue, May 08, 2007 at 05:21:01PM -0700, Minchen Zhao wrote:
> I am running Redhat Linux Enterprise version 4 update 4 on a dual-core
> 4G memory machine.
> There are many references on the web talking about increasing default
> user address space
> to 3.5 G however lacking specific instrcutions. My questions:
> 1. What is the specific steps to be done for the kernel to support 3.5 G
> address space?
> 2. Do I need to re-compile kernel to make this happen? If so, any
> specific instruction?
> thanks in advance.
> P.S. Please cc to me (mzhao@lizotech-inc.com) to reply.
Use the hugemem kernel instead of the smp kernel. You will get > 3.5GB
user address space.
-- wli
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