Hi Thomas, on one hand let me ask a few questions (below) as the report as-is can't really be acted on. on the other hand - even then - this is a topic that does not sound like an Ubuntu specific problem or fix and therefore more likely will be successful if deiscussed upstream (https://github.com/virt-manager/virt-manager/issues). If you happen to file a case there please let us know so that we can track it from here. If there is a fix coming out of it this will help to fix/backport it to Ubuntu afterwards.
Ok, after that being said let me start with the obvious questions. 1. You use v3.2 right now, have you seen the same with former (e.g. 2.2.1 in Focal) or later (4.0 in Jammy) versions as well? 2. What exactly is "moderate load" in your case? 3. could you come up with a step by step reproduction based on clean systems? For example take two Ubuntu VMs version X, sized with that many CPU/Mem connected to the same virtual network via Y. Then run a KVM guest on one like Z, connect to it from the other system. Then run the net-workload X on the host to simulate the load. 4. what error messages do you get exactly? Are they always the same? ** Changed in: virt-manager (Ubuntu) Status: New => Incomplete ** Tags added: need-upstream-report -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1965676 Title: virt-manager looses connection to virtualization hosts at moderate loads To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/virt-manager/+bug/1965676/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs