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Cheers for the suggestions, however I already tried these and they
didn't work (running VMware in dom0: got a General Protection Fault,
probably as dom0 is still a VM and cannot run in ring 0, assigning NIC
to domU: I'm pretty sure the problem is to do with the device emulation,
not the network bandwidth)
Thanks anyway,
Martin
Gary W. Smith wrote:
> Oddball suggestion:
>
> Download the Linux version of VMWare Server, run it on the Dom0. Do both at
> the same time. I've never tried it but I don't see why it wouldn't work.
>
>
> ________________________________
>
> From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx on behalf of Martin Goldstone
> Sent: Thu 8/16/2007 4:02 AM
> To: xen-users@xxxxxxxxxxxxxxxxxxx
> Subject: [Xen-users] Xen/VMWare co-existence?
>
>
>
> Hi all,
>
> I've been working on a project recently which we want to virtualize. It
> runs on Windows Server 2003, so my first attempt was to put it in a HVM
> domU. Sadly, this application requires network performance higher than
> HVM is seemingly capable of. In the absence of PV drivers for Windows,
> I tried running it on VMWare instead, and I got the extra network
> performance I was looking for.
>
> However, rather than having to have VMware hosts alongside Xen hosts,
> I'd much rather run VMware on the same physical box as Xen. Obviously I
> can't run it in dom0 or in a PV domU (according to what I've seen on the
> net, the kernel modules VMware uses attempt to force it into ring 0,
> which causes a General Protection Fault), so I've tried running it in a
> HVM domU (CentOS 5, with PV drivers to improve the network performance).
> I've seen several posts on several lists via Google suggesting that HVM
> domU's have a virtual ring 0, which should suffice. While I'm no longer
> getting a GPF, the Windows VM still refuses to start, most of the time
> giving me no error message but sometimes it pops up a box telling me
> about an unrecoverable error, unexpected signal 11. I can't determine
> anything useful from the log file either.
>
> So, the question is, has anyone tried (or had any success with) getting
> VMware and Xen to co-exist on the same box? If you have, how did you do
> it? If not, I'd appreciate any ideas as to how to achieve this, or
> (perhaps preferably) any hints to improve network performance under HVM.
> Or if anyone's got any alternative ideas I'd be happy to hear them.
> Of course, the best solution would be to have open source PV drivers for
> Windows, but I don't think that's even on the horizon.
>
> Thanks in advance for any input.
>
>
> Martin
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