On Tue, Sep 9, 2025 at 11:54 AM Jason Gunthorpe <jgg@xxxxxxxxxx> wrote: > > On Tue, Sep 09, 2025 at 11:40:18AM -0400, Pasha Tatashin wrote: > > In reality, this is not something that is high priority for cloud > > providers, because these kinds of incompatibilities would be found > > during qualification; the kernel will fail to update by detecting a > > version mismatch during boot instead of during shutdown. > > Given I expect CSPs will have to add-in specific version support for > their own special version-pair needs, I think it would be helpful in > the long run to have a tool that reported what versions a kernel build > wrote and parsed. Test-to-learn the same information sounds a bit too > difficult. Yes, I agree. My point was only about the near term: it's just not a priority at the moment. This won't block us in the future, as we can always add a tooling later to inject the required ELF segments for pre-live update checks. Pasha