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Questions tagged [dom0]

11 questions
8
votes
1 answer

Xen 4.1 host (dom0) with blktap disks ("tap:aio:") not connecting

Problem using blktap with xen-4.1 running Ubuntu Precise stock kernel with dom0 xen-4.1. I get: [ 5.580106] XENBUS: Waiting for devices to initialise: 295s...290s. ... [ 300.580288] XENBUS: Timeout connecting to device: device/vbd/51713 (local…
Manwe
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3
votes
3 answers

compile kernel 2.6.34 for Ubuntu Lucid for xen dom0 / pvops

I'd like to compile a recent Linux kernel (2.6.34) for my Ubuntu 10.04 Lucid Lynx AMD64 box, mainly because I'd like to use it as a dom0 kernel with the recent xen4. There's plenty documentation on the web about how to compile a kernel 'Debian…
andreas-h
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2
votes
4 answers

CentOS or OpenSolaris for Xen dom0?

I would like to play around with Xen with the intention of eventually running a bunch of different services on separate virtual machines (partly just because I can), and have the possibility of trying things like clusters and such. I've decided to…
Kyle
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2
votes
2 answers

xen vm memory missing

I have an Ubuntu server with 320GB of memory. I installed xen 4.4.1 on this machine, and run 2 Debian VMs. One with +-100GB of memory and one with +-200GB. Everything worked fine, until at one point, the 200GB machine reports having only 128GB. The…
bmesuere
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1
vote
1 answer

XenServer not detecting whole RAM (Dom0 and DomU 32-bit issue)

Well, somewhere I has read that my machine has a problem reading all the RAM because of the 32-bit limitation: http://xenserver.org/blog/entry/the-reality-of-a-64-bit-dom0.html I don't underestand anything, can somebody explain what this…
z3nth10n
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1
vote
1 answer

Xen dom0 reports incorrect amount of RAM with dom0_mem set

I've done a fair bit of searching about this, but have found nothing that answers my question. I have a system with 6GB of RAM which acts as a Xen server. For reference, it runs Ubuntu 12.04. I've set the kernel parameter dom0_mem:512M,max:512M in…
xen_amnesiac
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1
vote
1 answer

Xen dom0 bridge interface drops a lot of RX packets?

I'm running Gentoo Hardened as Dom0. It also acts as a router/NAT. There's a bridge interface called br0 which contains a pci-e wlan card, ethernet nic & domU. bridge name bridge id STP enabled interfaces br0 …
ponkay
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1
vote
2 answers

Xen: can't get Dom0 and the DomUs to ping eachother

We have installed a Xen (4.1) configuration and can't get Dom0 and the DomUs to communicate (ping eachother). The DomUs are able to ping eachother but not Dom0, and Dom0 cannot ping the DomUs. We tried a lot of different things following what we…
Maria
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1
vote
3 answers

Best OS for Xen Dom0 - have had problems with CentOS and OpenSUSE for Xen

I used the No Starch Press "Book of Xen" as a starting point to learn more about Xen and begin a dom0 installation as described therein. Through failed installations and subsequent searches I learned that Red Hat / CentOS no longer supports Xen in…
Ejoso
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0
votes
1 answer

dom0 enable IPv6 for guests

I am looking at deploying IPv6 to my virtual machines. Right now I have v6 working great on the dom0 using a 6in4 provided by Hurricane Electric as I do not have native v6. However, I would like to distribute some of the /48 I am receiving to the…
user98651
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0
votes
2 answers

Xen Bridge only working when IP Assigned

Just had an (in my sense) obscure situation. I have a Xen Server with bridged networking. Everything works fine since month. A while ago i configuresd a second bridge. only some DomUs get an channel on this bridge - my Dom0 doesn't need to /…
m.sr
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