I say this exact behavior on a test machine of RedHat Linux 7.x.
If it is a Red Hat system 7.0, RH has 3 boot modes:
The linux kernel has high mem support as well as SMP(in RH terms, the
2.2.16-20-enterprise kernel). The SMP kernel has no high mem support and linux
up has no builtin modules (well some, but less than the other 2 kernel
Aldert Zomer wrote:
> ----- Original Message -----
> From: <kenneth.leung@xxxxxxxxxxxx>
> To: <linux-xfs@xxxxxxxxxxx>
> Sent: Thursday 1 March 2001 20:03 PM
> Subject: Usable memory limit?
> > Hello everyone,
> > On our Linux + XFS machines that have 1GB of memory, the systems only
> > seeing 898,424KB of memory. We are viewing this through the /usr/bin/top
> > utility. On another machine running Linux without XFS (kernel 2.2.16-22)
> > which has 2GB of memory, the system sees all the memory.
> > Is there a barrier on how much memory is usable on the current Linux + XFS
> > pre-release 0.9 version?
> We're running rh7 with XFS from cvs on a box with 2 gb. Top reports 2 gb.
> Perhaps the kernel in the pre-release version isn't compiled with highmem