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Fwd: [Xen-users] Xen and it's future with linux?

  • To: xen-users@xxxxxxxxxxxxxxxxxxx
  • From: Brandon Lamb <brandonlamb@xxxxxxxxx>
  • Date: Sun, 14 Mar 2010 01:40:57 -0800
  • Delivery-date: Sun, 14 Mar 2010 01:43:52 -0800
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  • List-id: Xen user discussion <xen-users.lists.xensource.com>

Oh that is really weird, my reply somehow went to the wrong thread,
wow maybe Im just really tired, it IS almost 2am... sorry for posting
to wrong thread, I blame gmail

---------- Forwarded message ----------
From: Brandon Lamb <brandonlamb@xxxxxxxxx>
Date: Sun, Mar 14, 2010 at 1:37 AM
Subject: Re: [Xen-users] Xen and it's future with linux?
To: xen-users@xxxxxxxxxxxxxxxxxxx

On Sun, Mar 14, 2010 at 1:15 AM, Pasi KÃrkkÃinen <pasik@xxxxxx> wrote:
> On Sat, Mar 13, 2010 at 12:19:46PM -0800, khris4 wrote:
>> Thanx everyone for your help, I worked with ubunutu a little more last night
>> and was able to see the new kernel support for Âpv_op. I was confused
>> because there were Âso many article out on the web using my friend google
>> but it starts getting confusing because there's a lot of Âoutdated
>> howto,articles, blog that are not in chronological order to understand were
>> we are Âwith xen today. Does anyone know if there is site that keeps up with
>> xen? There even some pages on xen.org that Âare out dated and kinda hard to
>> figure out what is what. Also I would love to help out on keeping xen
>> documents update, so it will be a little easier find what we are looking
>> for. If know how I can help out on this, that would be helpful.
> Some Xen wiki documents that have been written or updated recently:
> http://wiki.xensource.com/xenwiki/XenBestPractices
> http://wiki.xensource.com/xenwiki/XenCommonProblems
> http://wiki.xensource.com/xenwiki/XenUSBPassthrough
> http://wiki.xensource.com/xenwiki/XenVGAPassthrough
> http://wiki.xensource.com/xenwiki/XenConfigurationFileOptions
> http://wiki.xensource.com/xenwiki/XenHypervisorBootOptions
> http://wiki.xensource.com/xenwiki/XenDom0Kernels
> http://wiki.xensource.com/xenwiki/XenParavirtOps
> This one (XenFaq) has a lot of (too) old information:
> http://wiki.xensource.com/xenwiki/XenFaq
> Feel free to create your own wiki account and then ask Stephen Spector
> to give you edit permissions, and you're ready to contribute!
> -- Pasi
>> christopher andrews-4 wrote:
>> >
>> >
>> > Hello Everyone
>> > I was wondering if any has any information on what going with xen. I have
>> > notice that many linux distro have start removing linux dom0 and domU's
>> > support like ubunutu. I'm kinda worried on what the future is going to
>> > hold for xen. Also is there any way to get ubuntu 9.10 supported has a
>> > domU without using HVM because performance reasons?
>> > _______________________________________________
>> > Xen-users mailing list
>> > Xen-users@xxxxxxxxxxxxxxxxxxx
>> > http://lists.xensource.com/xen-users
>> >
>> --
>> View this message in context: 
>> http://old.nabble.com/Xen-and-it%27s-future-with-linux--tp27885493p27890016.html
>> Sent from the Xen - User mailing list archive at Nabble.com.

Oh weird!! I think I may have just figured out what it was, so
dom0_mem=512M in grub, and dom0-min-mem=512 in xend-config, balloon on
or off didnt seem to matter, but anyway...

On a fresh reboot domain-0 would be using ALL the memory except for
like 130 megs or so out of 4 gigs. So every time i tried to start a
guest it would complain about not enough memory. I thought maybe it
was suppose to take memory away from its "pool" of used memory or
something and use for the guest.

So, I just rebooted again keeping dom0_mem=512M and set balloon to no
and dom0-min-mem=192 and then "xm mem-set Domain-0 512" and I can see
my available memory go up to 3 gigs where it should be.

Any reason why it would start off sucking up all the ram? Am I doing
something wrong? Is there a way to say on a reboot give domain-0 512
megs of ram and thats it? I would have thought that by turning
ballooning OFF that this would be the effect but apparently not?

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