On Thu, Oct 03, 2024 at 03:45:09PM -0700, Jiaqi Yan wrote: > Hi Jason, > > On Wed, Oct 2, 2024 at 8:02 AM Jason Gunthorpe <jgg@xxxxxxxxxx> wrote: > > > > On Tue, Sep 24, 2024 at 04:39:18AM +0000, Jiaqi Yan wrote: > > > > > So far I personally prefer the global MFR policy but open to feedbacks to both > > > options, or new ideas. > > > > Why? It seems more natural that only processe that can handle the > > SIGBUS semantics would opt into them? > > Are you suggesting you prefer the per-VMA policy, or proposing a new > "per-process policy" added via prctl? By "per-process", I imagine the > policy to keep or offline the poisoned page will apply to all its > VMAs? I'm just asking why you "personally prefer" as the direction seems a bit awkward Jason