On 07/02/12 17:47, Gerd Hoffmann wrote: >> diff --git a/hw/usb/core.c b/hw/usb/core.c >> index 0e02da7..eacda74 100644 >> --- a/hw/usb/core.c >> +++ b/hw/usb/core.c >> @@ -407,7 +407,9 @@ void usb_packet_complete(USBDevice *dev, USBPacket *p) >> int ret; >> >> usb_packet_check_state(p, USB_PACKET_ASYNC); >> - assert(QTAILQ_FIRST(&ep->queue) == p); >> + if (QTAILQ_FIRST(&ep->queue) != p) { >> + trace_usb_assert(usb_bus_from_device(dev)->busnr, dev->port->path, >> p->ep->nr, p); >> + } > > Can you also log QTAILQ_FIRST(&ep->queue) there?
Oh, I think I've found it. It's most likely NULL. > Can I also get a "lsusb -v" for the usb device in question? Would still be useful. thanks, Gerd