On Tue, Aug 22, 2017 at 2:18 PM, Nick Hudson <[email protected]> wrote: > On 08/21/17 14:56, sc dying wrote: >> >> On 2017/08/21 12:00, Nick Hudson wrote: >>> >>> On 08/16/17 06:42, sc dying wrote: >>>> >>>> When ukbd(4) is a console and connected to USB3 port, you can enter >>>> into DDB by pressing ALT+CTRL+ESC but console freezes. >>>> (on HEAD, netbsd-7, netbsd-8) >>>> >>>> xhci has two buses, sc->sc_bus is for usb3 and sc->sc_bus2 is for >>>> usb2. ukbd is usually connected at Low-Speed, so usbd_set_polling >>>> sets sc->sc_bus2->ub_usepolling. >>>> However, xhci.c checks only sc->sc_bus->ub_usepolling, that's why >>>> xhci_poll does not call xhci_softintr. >>>> >>>> I can show a quick dirty patch. >>>> It assumes ub_usepolling is always set by ukbd at LS/FS/HS. >>> >>> Can you test this patch please? >> >> It does not work. >> >> This patch helps xhci.c but does not usb_schedsoftintr in usb.c. > > > How about this? It's still all pretty ugly, but this should now work... > > Nick
Yes, it works. It's a good idea. Thank you.
