On Tue, Jul 23, 2019 at 07:04:46AM -0700, Andy Lutomirski wrote: > > > > On Jul 23, 2019, at 2:18 AM, Peter Zijlstra <pet...@infradead.org> wrote: > > > >> On Mon, Jul 22, 2019 at 04:47:36PM -0700, Andy Lutomirski wrote: > >> > >> I don't love this whole concept, but I also don't have a better idea. > > > > Are we really talking about changing the kernel because BPF is expecting > > things? That is, did we just elevate everything BPF can observe to ABI? > > > > No, this isn’t about internals in the kernel mode sense.
*phew*, I was scared for a wee moment. > It’s about the smallish number of cases where the kernel causes user > code to do a specific syscall and the user has a policy that doesn’t > allow that syscall. This is visible to user code via seccomp and > ptrace. > > Yes, it’s obnoxious. Do you have any suggestions? Not really; I think I just demonstrated I don't fully understand the problem space here :/
