On Mon, Jun 13, 2016 at 6:50 AM, Oleg Nesterov <o...@redhat.com> wrote: > To avoid the confusion, let me first say that I am not going to argue > with these changes, I simply do not understand the problem space enough. > > On 06/10, Andy Lutomirski wrote: >> >> On Fri, Jun 10, 2016 at 1:07 PM, Oleg Nesterov <o...@redhat.com> wrote: >> > >> > IIRC, CRIU can't c/r the 32-bit applications, or this is no longer true? >> > >> >> CRIU has a horrible, nasty, brilliant idea: it will start restoring >> 32-bit processes by treating them mostly like 64-bit processes. The >> restorer will start out 64-bit, set everything up, and long >> jump/return/sigreturn/whatever back to 32-bit mode. > > OK, I see, > >> My proposal was >> that, rather than coming up with nasty hacks to switch the kernel's >> idea of the task bitness, > > Well, I can't resist but to me SA_IA32_ABI/SA_X32_ABI looks like a hack > too. We actually shift TIF_*32 into k_sigaction->flags, and the fact > that we do this per-signal looks, well, interesting ;)
Is anything actually wrong with this, though?
