Hi This is a single node cloudstack setup. If I take a backup of all VM volumes and cloudstack database, can I get them running on a fresh cloudstack installation?
Regards On Tue, Jun 16, 2026 at 12:23 PM Boris Stoyanov < [email protected]> wrote: > Hi Fariborz, > > This does not look like a Cloudstack issue, assuming this is a compute > host and storage is somewhere else, why don’t you reinstall it to a stock > version of the linux distro you are running and try again? > > Thanks, > Boris. > > > <https://www.cloudstackcollab.org> > *From: *Fariborz Navidan <[email protected]> > *Date: *Tuesday, 16 June 2026 at 12:25 pm > *To: *[email protected] <[email protected]> > *Subject: *URGENT: KVM Host freezes even in emergency mode > > Hi Everbody > > I have a very odd issue on the KVm host where both agent and management is > installed. > > Recently I have tried to mirror outbound smtp traffic from a test vm to IFB > device to analyze it using zeek for spam filtering. I did the mirroring > using tc filters. Everything was working before I added a custom libvirt > hook inside */etc/libvirt/hooks/qemu.d* and restarted libvirtd service to > add tc filter rule to any new VM being created. > > Once I restarted libvirtd host freezed and afterwards everytime host boots > it freezes not accepting any input even in emergency mode. When I enter > emergency mode, it only allows me a few seconds to issue a command and then > freezes. This happens even if I mask NetworkManager, libvirtd and > cloudstack-agent during boot to disable any service that cause system > freeze > > I have reverted back everything but still kernel freezes > > As I needed to analyze existing smtp traffic I needed to do on the > production server but everything is down. > > Please help! > > Best Regards >
