On Thu, Jul 31, 2008 at 11:58 AM, Jeremy Fitzhardinge <[EMAIL PROTECTED]>wrote:
> Grant McWilliams wrote: > > Vbox OSE has full source available. I was working on a contract for a > > corporation and was in the stage > > of deciding which virtualization platform to run and installed Vbox in > > a Xen system (running Xen). The installer > > loaded the vbox driver (As well as set it up to load automatically) > > and sent the server into a continuous reboot. Unfortunately this was > > in a Datacenter that I had no physical access to. The Vbox developers > > jumped all over me when I suggested that it was a bug. > > When running Xen the VMware interface will come up and the driver will > > load but the VMs just don't start. It seems like > > that would be a much better situation than causing the entire machine > > to crash. Seems like a Vbox problem. It was run in Dom0. > > Yes, that sounds like an inherently unstable configuration. I don't > know anything about how VBox operates internally, but whatever pagetable > management scheme they're using will quite likely not work under Xen > without a lot of care. The best we can do in that case is try to make > sure that VBox doesn't attempt to come up. > > If they don't rely on VT/SVM, then it may work from within a Xen hvm > domain, but I don't know what benefit that would have. What were you > trying to achieve by running VBox in dom0? > > J > I wasn't really trying to run VBox in the dom0. I'd been running the Xen kernel so long that I'd forgotten which kernel I was on. Like I said when you start VMware the guest OS just doesn't run which gives you a second to ponder why. VBox uses VT/SVM if you check a box in the config. It was not checked when it crashed the server. Depending on the application I use VBox or Xen for virtualization projects. VBox acts as an HVM most of the time so it's great for those times I'm virtualizing a product that I have no control over. Xen is best for environments that I do have control over. Grant McWilliams
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