'Something interesting recently emerged on the Linux kernel front—a new patch series titled “Live Update Orchestrator,” authored by Google’s engineer Pasha Tatashin and built on top of an earlier set of patches commonly referred to as the KHO v5 patch series. It aims to enable smooth kernel updates—referred to as “Live Update”—so that certain devices remain fully operational during the transition from an old kernel to a new one. Essentially, the innovative Live Update Orchestrator (LUO) subsystem intends to minimize system downtime by preserving device states across a reboot, particularly benefiting dynamic cloud environments where even minor disruptions can be unwelcome. According to the developers, this approach uses a state-machine mechanism to orchestrate the transition. The LUO subsystem tracks progress through several states—“normal,” “prepared,” and “updated”—and ties them together through callback APIs. These callbacks allow other kernel subsystems (e.g., KVM, IOMMU, interrupts, the new dev_liveupdate device layer, and memory management) to integrate seamlessly into the live update workflow.' -- source: https://linuxiac.com/linux-kernel-might-get-smarter-reboots/ Cheers, Peter