On Wed, Apr 7, 2021 at 11:47 AM Mikulas Patocka <mpatocka@xxxxxxxxxx> wrote: > > So, we fixed it, but we don't know why. > > Peter Xu's patchset that fixed it is here: > https://lore.kernel.org/lkml/20200821234958.7896-1-peterx@xxxxxxxxxx/ Yeah, that's the part that ends up being really painful to backport (with all the subsequent fixes too), so the 4.14 people would prefer to avoid it. But I think that if it's a "requires dax pmem and ptrace on top", it may simply be a non-issue for those users. Although who knows - maybe that ends up being a real issue on Android.. Linus
