Re: [Qemu-devel] usb_packet_complete: Assertion ... failed

[Erik Rull]

Jan Kiszka wrote:
> On 2012-06-23 11:29, Erik Rull wrote:
> > Jan Kiszka wrote:
> > > Hi Gerd,
> > >
> > > I'm getting
> > >
> > > qemu/hw/usb/core.c:410: usb_packet_complete: Assertion
> > > `((&ep->queue)->tqh_first) == p' failed.
> > >
> > > with a passed-through USB headset (UHCI controller). This was with
> > > current QEMU git head. Known issues? Anything I can do to debug it?
> > >
> > > Jan
> >
> > Hi all,
> >
> > I get this with another USB 1.1 hardware (running via UHCI) as well.
> > Some weeks ago it was fine.
> > @Jan: If you go back some weeks, this should work (begin of April was
> > definitvely ok).
>
> Interesting, will try to bisect if it's a regression. Don't have the
> hardware here, will try next week.
>
> > How long does it take to get the headset fully detected
> > in your guest so that you can use the hardware? My USB 1.1 HW takes ~ 60
> > seconds to work, after that everything is fine - during that I see
> > several USB resets on the host (dmesg).
>
> I don't see other problems so far. The device is quickly recognized and
> appears to work fine otherwise. But as the assert hit frequently, I was
> not able to test in details.
>
> Thanks,
> Jan

Hi Jan,

did you do the bisect already? If you have the culprit, I would try the 
version on my side as well if it fails, too.

Best regards,

Erik