Re: [Xen-users] 4GB memory installed, 3.5GB shown (Xen 3.2 + PAE)

["--[ UxBoD ]--" <uxbod@xxxxxxxxxxxx>]

32bit or 64bit Dom0 O/S ?

Regards,

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----- "Wouter de Geus" <benv-xensource.com@xxxxxxxxxxxxx> wrote:

> Hello,
> 
> (second attempt in sending this, messed up my from header ;))
> 
> I have recently upgraded one of my machines, both in hardware and Xen
> version.
> In the old situation it had 3GB of memory and Xen 3.1, worked like a
> charm.
> After upgrading it has 4GB of memory and Xen 3.2.
> 
> However, only 3.5GB of the memory is available to xen.
> (xm info gives
>   total_memory           : 3573 )
> 
> I've read about the grub 0.97 bug, so I patched it.
> However, that has absolutely no effect.
> 
> Grub output:
> grub> displaymem 
>  EISA Memory BIOS Interface is present
>  Address Map BIOS Interface is present
>  Lower memory: 640K, Upper memory (to first chipset hole): 3072K
>  [Address Range Descriptor entries immediately follow (values are
> 64-bit)]
>    Usable RAM:  Base Address:  0x0 X 4GB + 0x0,
>       Length:   0x0 X 4GB + 0xa0000 bytes
>    Reserved:  Base Address:  0x0 X 4GB + 0xa0000,
>       Length:   0x0 X 4GB + 0x60000 bytes
>    Usable RAM:  Base Address:  0x0 X 4GB + 0x100000,
>       Length:   0x0 X 4GB + 0x300000 bytes

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