The libvirt hang was a threading deadlock within libvirt, whereas this is a kernel crash. I'd be surprised if they are the same issue.
The current theory on the kernel bugzilla is that it might be related to bridge + netfilter. That does tally with the observation of it happening under a network load test. Guilherme: I've never seen the issue personally, but I haven't run network stress tests, I run Debian, I prefer FlatManager etc. Is it fairly easy to reproduce e.g. by running ab against a guest? I suspect this will be outside of anything we can fix in OpenStack itself though; the final outcome will likely be e.g. "you must use a kernel with patch X." You can either go straight to the latest versions, or if you provide a simple procedure I'm sure a number of the big clouds will want to try it on their own configurations. Justin On Wed, Mar 28, 2012 at 9:45 AM, Vishvananda Ishaya <[email protected]>wrote: > This was discussed on the mailing list earlier I believe: > > http://www.mail-archive.com/[email protected]/msg08475.html > > The solution appears to be to upgrade to a newer libvirt. > > Vish > > On Mar 28, 2012, at 6:01 AM, Guilherme Birk wrote: > > No one is having this issue? > > ------------------------------ > From: [email protected] > To: [email protected] > Date: Fri, 23 Mar 2012 19:48:04 +0000 > Subject: [Openstack] KVM crash. > > I'm having problems with KVM on a single node installation. My problem is > like these ones: > > https://bugzilla.kernel.org/show_bug.cgi?id=42703 > http://www.spinics.net/lists/kvm/msg67635.html > > The KVM normally crashes when I'm doing a load test with a large number of > connections on the VM's. > > This appears to not happen using a dual node installation, with the > nova-compute running with a dedicated machine. > > _______________________________________________ Mailing list: > https://launchpad.net/~openstack Post to : > [email protected] : > 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 > > > > _______________________________________________ > Mailing list: https://launchpad.net/~openstack > Post to : [email protected] > Unsubscribe : https://launchpad.net/~openstack > More help : https://help.launchpad.net/ListHelp > >
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