On Wed, Jul 17, 2024 at 12:30:19PM -0400, Peter Xu wrote: > On Wed, Jul 17, 2024 at 04:17:12PM +0200, David Hildenbrand wrote: > > I'd be curious how a previous truncation on a file can tear down a PFNMAP > > mapping -- and if there are simple ways to forbid that (if possible). > > Unfortunately, forbiding it may not work for vfio, as vfio would like to > allow none (or partial) mapping on the bars.. at least so far that's the > plan. vfio doesn't support truncation? Or does that means something else here? Jason