Not only QHs can form rings, but TDs too. With the new queuing/pipelining support we are following TD chains and can actually walk in circles. An assert() prevents us from entering an endless loop then. Fix is easy: Just stop queuing when we figure the TD we are about to queue up is in flight already. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Read the documentation in qemu-doc.html or on http://wiki.qemu.org - QEMU team
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