Hi,

   I installed ryu in openstack, and have defined packet_in_handler in my
app, I want to check those packets and then let them go(
*datapath.send_msg(out)*),    when I run app, some  errors came out:


*connmgr|INFO|br-int<->tcp:10.0.0.201:6633 <http://10.0.0.201:6633>:
sending OFPBRC_BUFFER_EMPTY error reply to OFPT_PACKET_OUT message*
*pktbuf|WARN|attempt to reuse buffer 00000110*

   I feel something should be done to avoid those packets sending before my
checking, but I don't know how.

   can you help me? thanks.

   if I send the mail too many times, please forgive me, the internet is
not steady.
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