Sean, how can I enable KVM Acceleration? I am actually getting very poor performance from Ubuntu KVM at the moment. Running on a 24-core server with 64gb ram, but my guests are running very slowly. Is there anything I can do to improve this? Also, if I enable this somehow, does this fix the 4gb ram limit or do I need to apply a patch?
On Mon, Jan 3, 2011 at 11:26 AM, Serge Hallyn <695...@bugs.launchpad.net> wrote: > Please note that running with kvm acceleration, you will be able to give > guests more memory. > > -- > You received this bug notification because you are a direct subscriber > of the bug. > https://bugs.launchpad.net/bugs/695825 > > Title: > Ubuntu KVM error with guest memory >4gb ram > > Status in “qemu-kvm” package in Ubuntu: > Won't Fix > > Bug description: > Binary package hint: qemu-kvm > > 1. Ubuntu 10.10 Maverick > 2. qemu-kvm 12.5 > 3. We are supposed to be able to run guests on a 64-bit Linux at up to 512gb > of ram, and I am only trying to run it with 8gb of ram and it is failing. > > When I'm trying to launch a VM with more than 4gb RAM, I receive the error > message: > > Traceback (most recent call last): > File "/usr/share/virt-manager/virtManager/engine.py", line 814, in run_domain > vm.startup() > File "/usr/share/virt-manager/virtManager/domain.py", line 1296, in startup > self._backend.create() > File "/usr/lib/python2.6/dist-packages/libvirt.py", line 333, in create > if ret == -1: raise libvirtError ('virDomainCreate() failed', dom=self) > libvirtError: internal error process exited while connecting to monitor: char > device redirected to /dev/pts/5 > qemu: without kvm support at most 4095 MB RAM can be simulated > > I have the packages qemu-kvm, libvirt-bin, and virt-manager installed from > apt. > > I see something about a patch being applied to qemu 12.0 that addresses this > exact message, but the Ubuntu package qemu-kvm is 12.5 so it should be fixed? > http://www.spinics.net/lists/kvm/msg30336.html > > To unsubscribe from this bug, go to: > https://bugs.launchpad.net/ubuntu/+source/qemu-kvm/+bug/695825/+subscribe > -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. https://bugs.launchpad.net/bugs/695825 Title: Ubuntu KVM error with guest memory >4gb ram -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs