Re: Errors when compiling current- PAE

[Jean-Yves Migeon <jeanyves.migeon%free.fr@localhost>]

On 03/02/10 00:27, Piotr wrote:
> Hi all,
>
> I do not know if PAE works on i386- I thought I can have mapping for more than
> 3GB of my memory.

You cannot have more than 3GB of virtual memory for userland, even with 
PAE; virtual addressing remains at 32 bits. PAE only increases the 
physical address space up to 36 bits (but this is invisible to user 
processes).

> Anyway sources cvs yesterday, options PAE added to the GENERIC
> kernel- here output of the compilation:

GENERIC does not support PAE yet (but will in the upcoming weeks).

> I test it under Virtualbox with option PAE enable under linux x86_64. I cannot
> use netbsd amd64 b/c my 3945 just doesn't work.
>
> Without PAE in GENERIC config kernel builds succesfuly. What am I doing wrong?

Nothing.

Unless you strictly need PAE (NX bit support, or 36 bits physical 
addressing), you are better off without it.

Does VB on 64 bits hosts require 32-bits guest with PAE?

--
Jean-Yves Migeon
jeanyves.migeon%free.fr@localhost