Re: [Qemu-devel] Bug (Regression?) in hw/usb/hcd-uhci.c causes failure of ICH9 host controller and attached Xbox 360 Wireless Receiver

[Joe Clifford <joe@thunderbug.co.uk>]

On 21/04/16 15:17, Gerd Hoffmann wrote:
>> - When booting without the device attached, then running the device
>> manager to watch what happens, inserting the device results in it
>> appearing as normal for ~30-50 seconds before the device manager view
>> refreshes and the yellow warning triangle appears next to the IC9 UHCI
>> device and the Xbox USB device disappears. (See screen-shot
>> w7-devman1.png and w7-devman2.png). Sometimes this results in
>> unresponsive keyboard and mouse in the guest and other times not.
> Ok, can you try
> https://www.kraxel.org/cgit/qemu/commit/?h=work/usb-uhci-usb-host-debug&id=f8a731045bbe46a315622a1cc76afc6deb14534e
> ?
>
> Probably the message gets printed when the yellow warning appears in
> device manager.
>
> thanks,
>    Gerd
>
Starting the guest VM with the UHCI debug patch and the device unplugged 
results in these two lines just after it starts:

uhci_handle_td: invalid pid token 0x0, raising HCPERR
uhci_handle_td: invalid pid token 0x0, raising HCPERR

and then the same line repeated 18 times once the Windows desktop is 
reached and the device is plugged in.

When the yellow warning appears in the device manager, nothing is 
printed to stderr.

Shutdown of the guest results in 7 more identical lines.

Starting the guest with the device already plugged in is not much 
different; 20 lines of 'uhci_handle_td: invalid pid token 0x0, raising 
HCPERR' until desktop is reached, nothing when yellow exclamation 
appears, 7 more lines on shutdown.

There are various warnings printed in the host syslog that occur in line 
with the guest starting, the device being plugged in and guest shutdown 
- you can see the output here:

https://gist.github.com/7hunderbug/a1d271b0e8cab34800e046be06414ab9

Thanks,

Joe