On Fri, Aug 21, 2020 at 3:21 AM Peter Zijlstra <[email protected]> wrote: > > Remove the historical junk and replace it with a WARN and a comment. > > The problem is that even though the kernel only uses TF single-step in > kprobes and KGDB, both of which consume the event before this, > QEMU/KVM has bugs in this area that can trigger this state so we have > to deal with it.
Almost acked by me. If you make the change I suggested earlier, then the ->debugreg6 garbage can actually die. --Andy
