Public bug reported: Affects Package: openvswitch (Jammy Cloud Archive - Caracal) Current Version: 3.3.0-1ubuntu3.1~cloud0
Description: When running a BGP daemon (like Bird or FRR) handling a full routing table on the same host and namespace as Open vSwitch, ovs-vswitchd spins at 100% CPU due to continuous Netlink route-table cache invalidations from non-standard routing tables. This was fixed upstream in the OVS 3.3 branch starting with version 3.3.1, but the current Caracal UCA package is stuck on a patched 3.3.0 core and is missing this critical performance fix. Upstream References: GitHub Issue: https://github.com/openvswitch/ovs-issues/issues/185 Upstream Commit: "route-table: Avoid routes from non-standard routing tables." (Committed March 2024, native to 3.3.1+) Request: Please cherry-pick/backport this specific patch into the Ubuntu Jammy Caracal package update stream to prevent control plane CPU exhaustion. ** Affects: openvswitch (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2155119 Title: Backport upstream patch to avoid 100% CPU on full-routing tables (OVS Issue #185) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openvswitch/+bug/2155119/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
