[ovs-dev] BUG: Weird failure of OVS classifier

Jean Tourrilhes jean.tourrilhes at hpe.com
Thu Mar 26 02:35:22 UTC 2020

	Hi all,

	I have stumbled on a weird failure of the OVS classifier. This
is a bit beyond my abilities, so I would like other people to have
a look at it.
	This is the error in the log :
2020-03-26T02:05:22.693Z|01237|dpif(handler86)|DBG|system at ovs-system: failed to put[create] (File exists) ufid:a4bba536-21ad-4c5d-9dd9-ab8f72263ce1 recirc_id(0),dp_hash(0/0),skb_priority(0/0),in_port(1),skb_mark(0/0),ct_state(0x2a/0),ct_zone(0/0),ct_mark(0/0),ct_label(0/0),ct_tuple4(src=,dst=,proto=17/0,tp_src=55732/0,tp_dst=7364/0),eth(src=22:c3:19:dc:23:47/00:00:00:00:00:00,dst=fa:c1:63:72:87:45/00:00:00:00:00:00),eth_type(0x0800),ipv4(src=,dst=,proto=17,tos=0/0x3,ttl=64/0,frag=no),udp(src=7364/0,dst=55732/0x8000), actions:set(tunnel(tun_id=0x0,dst=,ttl=64,tp_dst=4789,flags(df|key))),2
	From my understanding, this should not happen, so one of the
classifier is wrong, the main question is if it is the kernel
classifier or the vswitchd classifier.

	I have way more details and I can reproduce that bug
consistently, so feel free to ask the details you need.

	Thanks in advance !


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