There is a known bug about qemu virtio driver on ubuntu12.04 which has the same effect as you described. see https://bugs.launchpad.net/ubuntu/+source/qemu-kvm/+bug/997978. this has been fixed by ubuntu. if it is caused by this bug. you just need update you qemu-kvm . to the version "1.0+noroms-0ubuntu14.3" . hope this helps you.
2012/11/7 延生 付 <[email protected]> > hi, > > Could you let us know your stress test environment and procedures? > I didn't encounter this issue before. > > Regards, > willfu > > ------------------------------ > *发件人：* 한승진 <[email protected]> > *收件人：* [email protected] > *发送日期：* 2012年11月7日, 星期三, 上午 9:20 > *主题:* [Openstack] vm is disconnected when I use VirtIO network driver > > Hi. > > We use VirtIO as a network driver and use KVM as a hypervisor. > > Now, we have been having a instance stress test. (disk,cpu,network else..) > > When we had a stress test, several instances are disconnected and down. > > After rebooting the instance, we can access the instance again. > > We doubted the network driver. > > We change network driver from virtio to e1000. > > There were no instances that were down or disconnected. > > However, performance of e1000 is terrible.. > > Who have experienced like this situation? > > VirtIO is still unstable? > > Please tell us the reason and how to resolve this problem. > > > > > > > > > > > > _______________________________________________ > Mailing list: https://launchpad.net/~openstack > Post to : [email protected] > Unsubscribe : https://launchpad.net/~openstack > More help : https://help.launchpad.net/ListHelp > > > > _______________________________________________ > Mailing list: https://launchpad.net/~openstack > Post to : [email protected] > Unsubscribe : https://launchpad.net/~openstack > More help : https://help.launchpad.net/ListHelp > > -- Yaguang Tang
_______________________________________________ Mailing list: https://launchpad.net/~openstack Post to : [email protected] Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
