On Thu, Sep 29, 2022 at 10:37:22AM -0600, Keith Busch wrote: > I don't think so. Memory alignment and length granularity are two completely > different concepts. If anything, the kernel's ABI had been that the length > requirement was also required for the memory alignment, not the other way > around. That usage will continue working with this kernel patch. Well, Linus does treat anything that breaks significant userspace as a regression. Qemu certainly is significant, but that might depend on bit how common configurations hitting this issue are.