On Fri, Jan 18, 2013 at 11:04:04AM -0600, Cole Robinson wrote: > >> Thanks for the analysis Paolo, here's the final patch I used: > >> > >> http://pkgs.fedoraproject.org/cgit/qemu.git/tree/0004-Fix-migration-compat-with-qemu-kvm.patch > >> > >> Thanks, > >> Cole > > > > Cole, > > > > version_id and minimum_version_id should be changed to 2, as the comment > > indicates.
Problem is it uses acpi_load_old, when reading from qemu-kvm 1.2 (which advertises format as V2), which reads 4*16 bits (instead of 16 bits) for en/sts fields. So it can corrupt incoming migration data. > But won't that mean we have to carry that patch forever, and while we carry > that patch we can never migrate from Fedora qemu to an upstream qemu instance? > I'd like to avoid carrying any incompatibility forward, if possible. No useful ideas :(
