Re: [Xen-users] Highmem for domU in 2.0.7

[Ted Kaczmarek <tedkaz@xxxxxxxxxxxxx>]

On Sat, 2005-09-10 at 19:28 +0200, Michael Paesold wrote:
> Ted Kaczmarek wrote:
> > On Sat, 2005-09-10 at 14:09 +0200, Michael Paesold wrote:
> > 
> >>I would like to use more than 832MB for a single domU. dmesg for the 
> >>domU says:
> >>
> >>BIOS-provided physical RAM map:
> >>  Xen: 0000000000000000 - 000000001b600000 (usable)
> >>Warning only 832MB will be used.
> >>Use a HIGHMEM enabled kernel.
> >>832MB LOWMEM available.
> >>
> >>The kernel configuration has:
> >>
> >>CONFIG_NOHIGHMEM=y
> >># CONFIG_HIGHMEM4G is not set
> >>
> >>What options should I set here? I would like to give up to about 1.5GB 
> >>to a domU. Why is highmem disabled by default? Any negative effects on 
> >>the stability, are there known problems?
> > 
> > Try it and let us know :-)
> 
> Well, I though there must be someone to _know_. At least the person who 
> decided to default to CONFIG_NOHIGHMEM on 2.0.
> 
> 3.0 could be a whole different. Do you have the default kernel installed 
> or is this the FC 4 package?
Using 2.6.12, that is the one make world grabs when doing install from
source tar ball.


Regards,
Ted



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