[Spice-devel] [usbredir PATCH v3] usbredir memory leak

[Hans de Goede]

p.s.

One more thing, when I reproduced this myself I noticed a
couple of other worrisome things:

1) When I stop the webcam-app inside the guest, the camera does
not stop streaming on the client side. As if the control request
being send from the client to stop the stream never reaches the
webcam. Now this may very well be related, and the cause may
be that there are multiple control requests involved and that
the 2nd or 3th one is actually the one stopping the stream,
and these never gets executed because of all the isoc data
being in the pipeline and thus in the way of completing the
first control transfer ...  IOW this will likely disappear
once the main issue is fixed

2) Likewise, and possibly more of a real issue, if I disconnect
the webcam from the usb-devices dialog to stop remote-viewer
from eating all my mem, the buffered memory does not seem to
get released, and the guest does not see a disconnect until I
close remote-viewer. This one is actually somewhat more worry
some. I would expect either the channel to reset, or for it
to slowly get drained over time. But after the unplug it seems
the channel just sits there with all its isoc data buffers
(and the disconnect packet queued after all those isoc buffers).

Regards,

Hans