Just checked openvswitch logs. Resubmit 4096 is actually occurs even on
25.09.2.
Final flow: unchanged
Megaflow: recirc_id=0,eth,arp,in_port=346,dl_src=fa:16:3e:63:aa:d0
Datapath actions: drop
2026-02-24T14:23:17.457Z|04071|connmgr|INFO|br-int<->unix#4346: 1
flow_mods in the last 0 s (1 adds)
2026-02-24T14:23:34.821Z|00076|ofproto_dpif_xlate(handler24)|WARN|Dropped
854 log messages in last 60 seconds (most recently, 0 seconds ago) due
to excessive rate
2026-02-24T14:23:34.821Z|00077|ofproto_dpif_xlate(handler24)|WARN|over
4096 resubmit actions on bridge br-int while processing
arp,in_port=4715,vlan_tci=0x0000,dl_src=fa:16:3e:97:65:15,dl_dst=ff:ff:ff:ff:ff:ff,arp_spa=138.124.72.142,arp_tpa=138.124.72.1,arp_op=1,arp_sha=fa:16:3e:97:65:15,arp_tha=00:00:00:00:00:00
2026-02-24T14:23:45.464Z|00091|dpif(handler28)|WARN|system@ovs-system:
execute
ct(commit,zone=163,mark=0/0x41,label=0/0xffff00000000000000000000,nat(src)),154
failed (Invalid argument) on packet
tcp,vlan_tci=0x0000,dl_src=0c:86:10:b7:9e:e0,dl_dst=fa:16:3e:69:22:89,nw_src=31.44.82.94,nw_dst=31.169.126.149,nw_tos=32,nw_ecn=0,nw_ttl=57,nw_frag=no,tp_src=51064,tp_dst=443,tcp_flags=syn
tcp_csum:d7b0
with metadata
skb_priority(0),skb_mark(0),ct_state(0x21),ct_zone(0xa3),ct_tuple4(src=31.44.82.94,dst=31.169.126.149,proto=6,tp_src=51064,tp_dst=443),in_port(2)
mtu 0
2026-02-24T14:23:56.702Z|00072|ofproto_dpif_upcall(handler30)|WARN|Dropped
697 log messages in last 60 seconds (most recently, 0 seconds ago) due
to excessive rate
2026-02-24T14:23:56.702Z|00073|ofproto_dpif_upcall(handler30)|WARN|Flow:
arp,in_port=409,vlan_tci=0x0000,dl_src=fa:16:3e:22:f2:f7,dl_dst=ff:ff:ff:ff:ff:ff,arp_spa=192.145.28.207,arp_tpa=192.145.28.1,arp_op=1,arp_sha=fa:16:3e:22:f2:f7,arp_tha=00:00:00:00:00:00
bridge("br-int")
----------------
0. priority 0
drop
Final flow: unchanged
Megaflow: recirc_id=0,eth,arp,in_port=409,dl_src=fa:16:3e:22:f2:f7
Datapath actions: drop
2026-02-24T14:24:34.891Z|02715|ofproto_dpif_xlate(handler2)|WARN|Dropped
1059 log messages in last 60 seconds (most recently, 1 seconds ago) due
to excessive rate
2026-02-24T14:24:34.891Z|02716|ofproto_dpif_xlate(handler2)|WARN|over
4096 resubmit actions on bridge br-int while processing
arp,in_port=1,vlan_tci=0x0000,dl_src=0c:86:10:b7:9e:e0,dl_dst=ff:ff:ff:ff:ff:ff,arp_spa=83.219.248.1,arp_tpa=83.219.248.109,arp_op=1,arp_sha=0c:86:10:b7:9e:e0,arp_tha=00:00:00:00:00:00
2026-02-24T14:24:46.042Z|04072|connmgr|INFO|br-int<->unix#4353: 1
flow_mods in the last 0 s (1 adds)
2026-02-24T14:24:59.041Z|00066|ofproto_dpif_upcall(handler78)|WARN|Dropped
662 log messages in last 63 seconds (most recently, 3 seconds ago) due
to excessive rate
2026-02-24T14:24:59.041Z|00067|ofproto_dpif_upcall(handler78)|WARN|Flow:
arp,in_port=339,vlan_tci=0x0000,dl_src=fa:16:3e:39:60:bb,dl_dst=ff:ff:ff:ff:ff:ff,arp_spa=91.92.46.85,arp_tpa=91.92.46.1,arp_op=1,arp_sha=fa:16:3e:39:60:bb,arp_tha=00:00:00:00:00:00
bridge("br-int")
----------------
0. priority 0
drop
Final flow: unchanged
Megaflow: recirc_id=0,eth,arp,in_port=339,dl_src=fa:16:3e:39:60:bb
Datapath actions: drop
2026-02-24T14:25:34.783Z|00067|ofproto_dpif_xlate(handler7)|WARN|Dropped
952 log messages in last 60 seconds (most recently, 0 seconds ago) due
to excessive rate
2026-02-24T14:25:34.783Z|00068|ofproto_dpif_xlate(handler7)|WARN|over
4096 resubmit actions on bridge br-int while processing
arp,in_port=4812,vlan_tci=0x0000,dl_src=fa:16:3e:68:f7:1b,dl_dst=ff:ff:ff:ff:ff:ff,arp_spa=138.124.72.245,arp_tpa=138.124.72.1,arp_op=1,arp_sha=fa:16:3e:68:f7:1b,arp_tha=00:00:00:00:00:00
2026-02-24T14:25:59.094Z|00067|ofproto_dpif_upcall(handler11)|WARN|Dropped
720 log messages in last 60 seconds (most recently, 0 seconds ago) due
to excessive rate
2026-02-24T14:25:59.095Z|00068|ofproto_dpif_upcall(handler11)|WARN|Flow:
arp,in_port=305,vlan_tci=0x0000,dl_src=fa:16:3e:d9:8d:f3,dl_dst=ff:ff:ff:ff:ff:ff,arp_spa=91.92.46.188,arp_tpa=91.92.46.1,arp_op=1,arp_sha=fa:16:3e:d9:8d:f3,arp_tha=00:00:00:00:00:00
bridge("br-int")
----------------
0. priority 0
drop
Final flow: unchanged
Megaflow: recirc_id=0,eth,arp,in_port=305,dl_src=fa:16:3e:d9:8d:f3
Datapath actions: drop
2026-02-24T14:26:35.024Z|02717|ofproto_dpif_xlate(handler2)|WARN|Dropped
937 log messages in last 61 seconds (most recently, 1 seconds ago) due
to excessive rate
2026-02-24T14:26:35.024Z|02718|ofproto_dpif_xlate(handler2)|WARN|over
4096 resubmit actions on bridge br-int while processing
arp,in_port=1,vlan_tci=0x0000,dl_src=0c:86:10:b7:9e:e0,dl_dst=ff:ff:ff:ff:ff:ff,arp_spa=104.165.244.1,arp_tpa=104.165.244.146,arp_op=1,arp_sha=0c:86:10:b7:9e:e0,arp_tha=00:00:00:00:00:00
2026-02-24T14:26:59.151Z|00067|ofproto_dpif_upcall(handler67)|WARN|Dropped
884 log messages in last 60 seconds (most recently, 0 seconds ago) due
to excessive rate
2026-02-24T14:26:59.151Z|00068|ofproto_dpif_upcall(handler67)|WARN|Flow:
arp,in_port=380,vlan_tci=0x0000,dl_src=fa:16:3e:f1:5b:e7,dl_dst=ff:ff:ff:ff:ff:ff,arp_spa=138.124.72.215,arp_tpa=138.124.72.1,arp_op=1,arp_sha=fa:16:3e:f1:5b:e7,arp_tha=00:00:00:00:00:00
bridge("br-int")
----------------
0. in_port=380, priority 100, cookie 0x2cfc9def
set_field:0x90/0xffff->reg13
set_field:0x3->reg11
set_field:0x1->reg12
set_field:0x1->metadata
set_field:0x1d2->reg14
set_field:0/0xffff0000->reg13
resubmit(,8)
8. metadata=0x1, priority 50, cookie 0x43f4e129
set_field:0/0x1000->reg10
resubmit(,73)
73. arp,reg14=0x1d2,metadata=0x1, priority 95, cookie 0x2cfc9def
resubmit(,74)
74. arp,reg14=0x1d2,metadata=0x1, priority 80, cookie 0x2cfc9def
set_field:0x1000/0x1000->reg10
move:NXM_NX_REG10[12]->NXM_NX_XXREG0[111]
-> NXM_NX_XXREG0[111] is now 0x1
resubmit(,9)
9. reg0=0x8000/0x8000,metadata=0x1, priority 50, cookie 0xf4bfe3b3
drop
Final flow:
arp,reg0=0x8000,reg10=0x1000,reg11=0x3,reg12=0x1,reg13=0x90,reg14=0x1d2,metadata=0x1,in_port=380,vlan_tci=0x0000,dl_src=fa:16:3e:f1:5b:e7,dl_dst=ff:ff:ff:ff:ff:ff,arp_spa=138.124.72.215,arp_tpa=138.124.72.1,arp_op=1,arp_sha=fa:16:3e:f1:5b:e7,arp_tha=00:00:00:00:00:00
Megaflow: recirc_id=0,eth,arp,in_port=380,dl_src=fa:16:3e:f1:5b:e7
Datapath actions: drop
Broadcast arps to all routers is set to false.
_uuid : 1841d88f-3fbf-427f-8d6c-c3edaba47a0a
acls : []
copp : []
dns_records : []
external_ids : {"neutron:availability_zone_hints"="",
"neutron:mtu"="1500", "neutron:network_name"=poland-public,
"neutron:provnet-network-type"=vlan, "neutron:revision_number"="12"}
forwarding_groups : []
load_balancer : []
load_balancer_group : []
name : neutron-da85395e-c326-489d-b4e6-dfb62aad360d
other_config : {broadcast-arps-to-all-routers="false",
fdb_age_threshold="0", mcast_flood_unregistered="false",
mcast_snoop="false", vlan-passthru="false"}
ports : [00288a04-90a4-4e8e-bada-8213747c92e4,
0047d609-ebff-4c43-8f1d-32d83d70c9e6, 00b6c585-ae29-4e88-a52a-3a16e1d91112
Regards,
Ilia Baikov
[email protected]
24.02.2026 17:16, Ilia Baikov пишет:
Hello,
After ugprading to OpenStack 2025.2 with OVN 25.09.2 (which contains
split buf fix) seems like no issues with DHCP, but I see a lot of
missed ARP, VM unable to reach GW and there is no ARP broadcasted to
some of VMs. Debugging shows that ovn installs drop arp flows for some
reason.
ovs-appctl ofproto/trace br-int \
"in_port=2,dl_vlan=1000,dl_src=0c:86:10:b7:9e:e0,dl_dst=ff:ff:ff:ff:ff:ff,dl_type=0x0806,arp_op=1,arp_spa=192.145.28.1,arp_tpa=192.145.28.113"
2>&1 | tail -80
Flow:
arp,in_port=2,dl_vlan=1000,dl_vlan_pcp=0,vlan_tci1=0x0000,dl_src=0c:86:10:b7:9e:e0,dl_dst=ff:ff:ff:ff:ff:ff,arp_spa=192.145.28.1,arp_tpa=192.145.28.113,arp_op=1,arp_sha=00:00:00:00:00:00,arp_tha=00:00:00:00:00:00
bridge("br-int")
----------------
0. in_port=2, priority 100
move:NXM_NX_TUN_ID[0..23]->OXM_OF_METADATA[0..23]
-> OXM_OF_METADATA[0..23] is now 0
move:NXM_NX_TUN_METADATA0[16..30]->NXM_NX_REG14[0..14]
-> NXM_NX_REG14[0..14] is now 0
move:NXM_NX_TUN_METADATA0[0..15]->NXM_NX_REG15[0..15]
-> NXM_NX_REG15[0..15] is now 0
resubmit(,45)
45. priority 0
drop
Final flow: unchanged
Megaflow: recirc_id=0,eth,arp,in_port=2,dl_src=0c:86:10:b7:9e:e0
Datapath actions: drop
docker exec ovn_controller ovn-controller --version
ovn-controller 25.09.2
Open vSwitch Library 3.6.2
OpenFlow versions 0x6:0x6
SB DB Schema 21.5.0
ovn-controller logs shows no errors clearly:
2026-02-24T14:06:39.403Z|00001|vlog|INFO|opened log file
/var/log/kolla/openvswitch/ovn-controller.log
2026-02-24T14:06:39.406Z|00002|reconnect|INFO|tcp:127.0.0.1:6640:
connecting...
2026-02-24T14:06:39.406Z|00003|reconnect|INFO|tcp:127.0.0.1:6640:
connected
2026-02-24T14:06:39.463Z|00004|main|INFO|OVN internal version is :
[25.09.2-21.5.0-81.10]
2026-02-24T14:06:39.463Z|00005|main|INFO|OVS IDL reconnected, force
recompute.
2026-02-24T14:06:39.464Z|00006|reconnect|INFO|tcp:10.11.0.4:16641:
connecting...
2026-02-24T14:06:39.464Z|00007|main|INFO|OVNSB IDL reconnected, force
recompute.
2026-02-24T14:06:39.464Z|00008|reconnect|INFO|tcp:10.11.0.4:16641:
connected
2026-02-24T14:06:39.464Z|00001|rconn(ovn_statctrl3)|INFO|unix:/var/run/openvswitch/br-int.mgmt:
connected
2026-02-24T14:06:39.464Z|00001|rconn(ovn_pinctrl0)|INFO|unix:/var/run/openvswitch/br-int.mgmt:
connected
2026-02-24T14:06:39.529Z|00009|main|INFO|OVS feature set changed,
force recompute.
2026-02-24T14:06:39.532Z|00010|rconn|INFO|unix:/var/run/openvswitch/br-int.mgmt:
connected
2026-02-24T14:06:39.532Z|00011|main|INFO|OVS OpenFlow connection
reconnected,force recompute.
2026-02-24T14:06:39.536Z|00012|main|INFO|OVS feature set changed,
force recompute.
2026-02-24T14:06:40.564Z|00013|main|INFO|OVS feature set changed,
force recompute.
2026-02-24T14:06:45.920Z|00014|binding|INFO|Releasing lport
bcd3ecfa-f43c-4e72-8978-73bbad07ed75 from this chassis (sb_readonly=1)
2026-02-24T14:06:45.924Z|00015|binding|INFO|Releasing lport
4f1f45b0-726c-4fea-b462-06dcbf559c25 from this chassis (sb_readonly=1)
2026-02-24T14:06:46.927Z|00016|timeval|WARN|Unreasonably long 1413ms
poll interval (1294ms user, 117ms system)
2026-02-24T14:06:46.927Z|00017|timeval|WARN|faults: 38131 minor, 0 major
2026-02-24T14:06:46.927Z|00018|timeval|WARN|disk: 0 reads, 8 writes
2026-02-24T14:06:46.927Z|00019|timeval|WARN|context switches: 0
voluntary, 65 involuntary
2026-02-24T14:06:46.936Z|00020|coverage|INFO|Event coverage, avg rate
over last: 5 seconds, last minute, last hour, hash=1a815819:
2026-02-24T14:06:46.936Z|00021|coverage|INFO|physical_run 0.2/sec
0.017/sec 0.0003/sec total: 1
2026-02-24T14:06:46.936Z|00022|coverage|INFO|lflow_conj_alloc
0.0/sec 0.000/sec 0.0000/sec total: 407
2026-02-24T14:06:46.936Z|00023|coverage|INFO|lflow_cache_miss
0.0/sec 0.000/sec 0.0000/sec total: 13470
2026-02-24T14:06:46.936Z|00024|coverage|INFO|lflow_cache_hit 0.0/sec
0.000/sec 0.0000/sec total: 394
2026-02-24T14:06:46.936Z|00025|coverage|INFO|lflow_cache_add 0.0/sec
0.000/sec 0.0000/sec total: 12956
2026-02-24T14:06:46.936Z|00026|coverage|INFO|lflow_cache_add_matches
0.0/sec 0.000/sec 0.0000/sec total: 2412
2026-02-24T14:06:46.936Z|00027|coverage|INFO|lflow_cache_add_expr
0.0/sec 0.000/sec 0.0000/sec total: 10544
2026-02-24T14:06:46.936Z|00028|coverage|INFO|consider_logical_flow
0.0/sec 0.000/sec 0.0000/sec total: 20680
2026-02-24T14:06:46.936Z|00029|coverage|INFO|lflow_run 0.2/sec
0.017/sec 0.0003/sec total: 1
2026-02-24T14:06:46.936Z|00030|coverage|INFO|miniflow_malloc
16.6/sec 1.383/sec 0.0231/sec total: 28561
2026-02-24T14:06:46.936Z|00031|coverage|INFO|hmap_pathological
11.2/sec 0.933/sec 0.0156/sec total: 257
2026-02-24T14:06:46.936Z|00032|coverage|INFO|hmap_expand 837.2/sec
69.767/sec 1.1628/sec total: 30358
2026-02-24T14:06:46.936Z|00033|coverage|INFO|hmap_reserve 0.4/sec
0.033/sec 0.0006/sec total: 21733
2026-02-24T14:06:46.936Z|00034|coverage|INFO|txn_unchanged 2.4/sec
0.200/sec 0.0033/sec total: 65
2026-02-24T14:06:46.936Z|00035|coverage|INFO|txn_incomplete 1.4/sec
0.117/sec 0.0019/sec total: 60
2026-02-24T14:06:46.936Z|00036|coverage|INFO|txn_success 0.6/sec
0.050/sec 0.0008/sec total: 3
2026-02-24T14:06:46.936Z|00037|coverage|INFO|poll_create_node
24.0/sec 2.000/sec 0.0333/sec total: 1304
2026-02-24T14:06:46.937Z|00038|coverage|INFO|poll_zero_timeout
0.0/sec 0.000/sec 0.0000/sec total: 1
2026-02-24T14:06:46.937Z|00039|coverage|INFO|rconn_queued 0.8/sec
0.067/sec 0.0011/sec total: 4
2026-02-24T14:06:46.937Z|00040|coverage|INFO|rconn_sent 0.8/sec
0.067/sec 0.0011/sec total: 4
2026-02-24T14:06:46.937Z|00041|coverage|INFO|seq_change 9.2/sec
0.767/sec 0.0128/sec total: 532
2026-02-24T14:06:46.937Z|00042|coverage|INFO|pstream_open 0.2/sec
0.017/sec 0.0003/sec total: 1
2026-02-24T14:06:46.937Z|00043|coverage|INFO|stream_open 1.2/sec
0.100/sec 0.0017/sec total: 6
2026-02-24T14:06:46.937Z|00044|coverage|INFO|util_xalloc 29035.4/sec
2419.617/sec 40.3269/sec total: 2277081
2026-02-24T14:06:46.937Z|00045|coverage|INFO|vconn_received 0.8/sec
0.067/sec 0.0011/sec total: 4
2026-02-24T14:06:46.937Z|00046|coverage|INFO|vconn_sent 1.2/sec
0.100/sec 0.0017/sec total: 6
2026-02-24T14:06:46.937Z|00047|coverage|INFO|jsonrpc_recv_incomplete
0.6/sec 0.050/sec 0.0008/sec total: 52
2026-02-24T14:06:46.937Z|00048|coverage|INFO|138 events never hit
2026-02-24T14:06:46.976Z|00049|binding|INFO|Releasing lport
4f1f45b0-726c-4fea-b462-06dcbf559c25 from this chassis (sb_readonly=0)
2026-02-24T14:06:46.977Z|00050|binding|INFO|Releasing lport
bcd3ecfa-f43c-4e72-8978-73bbad07ed75 from this chassis (sb_readonly=0)
2026-02-24T14:06:48.054Z|00051|timeval|WARN|Unreasonably long 1117ms
poll interval (1108ms user, 8ms system)
2026-02-24T14:06:48.054Z|00052|timeval|WARN|faults: 2581 minor, 0 major
2026-02-24T14:06:48.054Z|00053|timeval|WARN|context switches: 0
voluntary, 8 involuntary
2026-02-24T14:06:48.055Z|00054|coverage|INFO|Event coverage, avg rate
over last: 5 seconds, last minute, last hour, hash=0878340f:
2026-02-24T14:06:48.055Z|00055|coverage|INFO|physical_run 0.2/sec
0.017/sec 0.0003/sec total: 2
2026-02-24T14:06:48.055Z|00056|coverage|INFO|lflow_conj_alloc
0.0/sec 0.000/sec 0.0000/sec total: 814
2026-02-24T14:06:48.055Z|00057|coverage|INFO|lflow_cache_miss
0.0/sec 0.000/sec 0.0000/sec total: 13979
2026-02-24T14:06:48.055Z|00058|coverage|INFO|lflow_cache_hit 0.0/sec
0.000/sec 0.0000/sec total: 13671
2026-02-24T14:06:48.055Z|00059|coverage|INFO|lflow_cache_add 0.0/sec
0.000/sec 0.0000/sec total: 12956
2026-02-24T14:06:48.055Z|00060|coverage|INFO|lflow_cache_add_matches
0.0/sec 0.000/sec 0.0000/sec total: 2412
2026-02-24T14:06:48.055Z|00061|coverage|INFO|lflow_cache_add_expr
0.0/sec 0.000/sec 0.0000/sec total: 10544
2026-02-24T14:06:48.055Z|00062|coverage|INFO|consider_logical_flow
0.0/sec 0.000/sec 0.0000/sec total: 41360
2026-02-24T14:06:48.055Z|00063|coverage|INFO|lflow_run 0.2/sec
0.017/sec 0.0003/sec total: 2
2026-02-24T14:06:48.055Z|00064|coverage|INFO|cmap_expand 0.0/sec
0.000/sec 0.0000/sec total: 7
2026-02-24T14:06:48.055Z|00065|coverage|INFO|miniflow_malloc
16.6/sec 1.383/sec 0.0231/sec total: 63156
2026-02-24T14:06:48.055Z|00066|coverage|INFO|hmap_pathological
11.2/sec 0.933/sec 0.0156/sec total: 311
2026-02-24T14:06:48.056Z|00067|coverage|INFO|hmap_expand 837.2/sec
69.767/sec 1.1628/sec total: 30539
2026-02-24T14:06:48.056Z|00068|coverage|INFO|hmap_reserve 0.4/sec
0.033/sec 0.0006/sec total: 22553
2026-02-24T14:06:48.056Z|00069|coverage|INFO|txn_unchanged 2.4/sec
0.200/sec 0.0033/sec total: 67
2026-02-24T14:06:48.056Z|00070|coverage|INFO|txn_incomplete 1.4/sec
0.117/sec 0.0019/sec total: 60
2026-02-24T14:06:48.056Z|00071|coverage|INFO|txn_success 0.6/sec
0.050/sec 0.0008/sec total: 4
2026-02-24T14:06:48.056Z|00072|coverage|INFO|poll_create_node
24.0/sec 2.000/sec 0.0333/sec total: 1335
2026-02-24T14:06:48.056Z|00073|coverage|INFO|poll_zero_timeout
0.0/sec 0.000/sec 0.0000/sec total: 1
2026-02-24T14:06:48.056Z|00074|coverage|INFO|rconn_queued 0.8/sec
0.067/sec 0.0011/sec total: 4
2026-02-24T14:06:48.056Z|00075|coverage|INFO|rconn_sent 0.8/sec
0.067/sec 0.0011/sec total: 4
2026-02-24T14:06:48.056Z|00076|coverage|INFO|seq_change 9.2/sec
0.767/sec 0.0128/sec total: 546
2026-02-24T14:06:48.056Z|00077|coverage|INFO|pstream_open 0.2/sec
0.017/sec 0.0003/sec total: 1
2026-02-24T14:06:48.056Z|00078|coverage|INFO|stream_open 1.2/sec
0.100/sec 0.0017/sec total: 6
2026-02-24T14:06:48.056Z|00079|coverage|INFO|long_poll_interval
0.0/sec 0.000/sec 0.0000/sec total: 1
2026-02-24T14:06:48.056Z|00080|coverage|INFO|util_xalloc 29035.4/sec
2419.617/sec 40.3269/sec total: 2477649
2026-02-24T14:06:48.056Z|00081|coverage|INFO|vconn_received 0.8/sec
0.067/sec 0.0011/sec total: 4
2026-02-24T14:06:48.056Z|00082|coverage|INFO|vconn_sent 1.2/sec
0.100/sec 0.0017/sec total: 6
2026-02-24T14:06:48.056Z|00083|coverage|INFO|jsonrpc_recv_incomplete
0.6/sec 0.050/sec 0.0008/sec total: 52
2026-02-24T14:06:48.056Z|00084|coverage|INFO|136 events never hit
2026-02-24T14:06:48.056Z|00085|poll_loop|INFO|wakeup due to [POLLIN]
on fd 29 (10.11.0.2:40496<->10.11.0.4:16641) at lib/stream-fd.c:157
(82% CPU usage)
2026-02-24T14:06:48.097Z|00086|poll_loop|INFO|wakeup due to [POLLIN]
on fd 29 (10.11.0.2:40496<->10.11.0.4:16641) at lib/stream-fd.c:157
(82% CPU usage)
2026-02-24T14:06:48.104Z|00087|poll_loop|INFO|wakeup due to 0-ms
timeout at controller/ovn-controller.c:7558 (82% CPU usage)
2026-02-24T14:06:48.283Z|00088|poll_loop|INFO|wakeup due to 0-ms
timeout at controller/ofctrl.c:692 (82% CPU usage)
2026-02-24T14:06:48.870Z|00089|poll_loop|INFO|wakeup due to [POLLIN]
on fd 33 (<->/var/run/openvswitch/br-int.mgmt) at lib/stream-fd.c:153
(82% CPU usage)
2026-02-24T14:06:48.877Z|00090|poll_loop|INFO|wakeup due to [POLLOUT]
on fd 33 (<->/var/run/openvswitch/br-int.mgmt) at lib/stream-fd.c:153
(82% CPU usage)
2026-02-24T14:06:48.884Z|00091|poll_loop|INFO|wakeup due to [POLLOUT]
on fd 33 (<->/var/run/openvswitch/br-int.mgmt) at lib/stream-fd.c:153
(82% CPU usage)
2026-02-24T14:06:48.892Z|00092|poll_loop|INFO|wakeup due to [POLLOUT]
on fd 33 (<->/var/run/openvswitch/br-int.mgmt) at lib/stream-fd.c:153
(82% CPU usage)
2026-02-24T14:06:48.900Z|00093|poll_loop|INFO|wakeup due to [POLLOUT]
on fd 33 (<->/var/run/openvswitch/br-int.mgmt) at lib/stream-fd.c:153
(82% CPU usage)
2026-02-24T14:06:48.907Z|00094|poll_loop|INFO|wakeup due to [POLLOUT]
on fd 33 (<->/var/run/openvswitch/br-int.mgmt) at lib/stream-fd.c:153
(82% CPU usage)
2026-02-24T14:06:49.875Z|00095|memory|INFO|143124 kB peak resident set
size after 10.5 seconds
2026-02-24T14:06:49.875Z|00096|memory|INFO|idl-cells-OVN_Southbound:301305
idl-cells-Open_vSwitch:25815 lflow-cache-entries-cache-expr:10548
lflow-cache-entries-cache-matches:2413 lflow-cache-size-KB:32447
local_datapath_usage-KB:2 ofctrl_desired_flow_usage-KB:8528
ofctrl_installed_flow_usage-KB:6365
ofctrl_rconn_packet_counter-KB:5161 ofctrl_sb_flow_ref_usage-KB:3196
oflow_update_usage-KB:1
Regards,
Ilia Baikov
[email protected]
12.02.2026 21:22, Ilia Baikov пишет:
Hi,
Returning back to this issue after a while as I'm migrating ml2/ovs
to ml2/ovn.
Seems like the same issue from 2025 still persists.
refs:
[0]
https://mail.openvswitch.org/pipermail/ovs-discuss/2025-February/053456.html
[1]
https://mail.openvswitch.org/pipermail/ovs-discuss/2025-March/053484.html
case:
Big L2 domain with border device learning IPs by flooding ARP. For
some reason in case L2 device (nic with VLANs attached) is attached
to the br-ex bridge, then after a while OVN stops sending DHCP
packets (OFFER/ACK/etc).
Anybody else observed the same issue? The only way to stabilize
region is to switch to L3 networking using ovn-bgp-agent (eth0 is
detached from br-ex, so no more ARPs delivered to ovn-controller),
but there is monstrous overhead using kernel routing: IRQ higher up
to x5-6 times, like 10-12% while L2 networking is just 2% which is fine.
Meanwhile, no errors, warns, resubmit logs in logs.
_______________________________________________
discuss mailing list
[email protected]
https://mail.openvswitch.org/mailman/listinfo/ovs-discuss
