On Thu, Aug 29, 2024 at 12:21:39PM -0700, Jiaqi Yan wrote: > I think we still want to attempt to SIGBUS userspace, regardless of > doing unmap_mapping_range or not. IMHO we need to eliminate this path if we actually want to keep things mapped. There is no way to generate the SIGBUS without poking a 4k hole in the 1G page, as only that 4k should get SIGBUS, every other byte of the 1G is clean. Jason
