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Bug
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Resolution: Done-Errata
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Minor
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None
# ovs-appctl -t /var/run/ovn-ic/ovn-controller.3851.ctl memory/show
idl-cells-OVN_Southbound:1647779 idl-cells-Open_vSwitch:9185 if_status_mgr_ifaces_state_usage-KB:2 if_status_mgr_ifaces_usage-KB:15 lflow-cache-entries-cache-expr:804 lflow-cache-entries-cache-matches:15167 lflow-cache-size-KB:2843 local_datapath_usage-KB:1 ofctrl_desired_flow_usage-KB:203461 ofctrl_installed_flow_usage-KB:140479 ofctrl_sb_flow_ref_usage-KB:4240487982
there is some kind of integer overflow ofctrl_sb_flow_ref_usage-KB:4240487982 is surely incorrect
A reproducer:
# rpm -q --whatprovides /usr/bin/ovn-controller ovn23.09-host-23.09.0-91.el9fdp.x86_64
#!/bin/bash set -x systemctl stop openvswitch systemctl stop ovn-controller systemctl stop ovn-northd rm /etc/openvswitch/conf.db rm /var/lib/ovn/ovnsb_db.db rm /var/lib/ovn/ovnnb_db.db ip netns del pods set -e systemctl start ovn-northd ovn-sbctl --inactivity-probe=0 set-connection ptcp:6642 ovn-nbctl --wait=hv sync ovn-nbctl ls-add ls1 ovn-nbctl lsp-add ls1 ls1p1 \ -- pg-add pg1 ls1p1 \ -- create address_set name=address________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ addresses='["0.0.0.1", "0.0.0.2"]' \ -- acl-add pg1 to-lport 1000 'tcp && ip4.dst==$address________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________' drop \ -- lsp-set-addresses ls1p1 "00:00:00:01:01:01 192.168.1.1" \ -- set logical_switch_port ls1p1 options:requested-chassis=$(cat /etc/openvswitch/system-id.conf) systemctl start openvswitch systemctl start ovn-controller ovs-vsctl set open . external_ids:ovn-remote=tcp:127.0.0.1:6642 \ external_ids:ovn-encap-type=geneve \ external_ids:ovn-encap-ip=10.224.123.2 \ external_ids:ovn-openflow-probe-interval=240 node=ls1 ovn-sbctl wait-until chassis `cat /etc/openvswitch/system-id.conf` ovs-vsctl wait-until port br-int ovn-nbctl --wait=hv sync ip netns add pods ovs-vsctl add-port br-int pod1 -- set interface pod1 type=internal -- set interface pod1 external_ids:iface-id=ls1p1 A=$(ovn-nbctl --bare --columns addresses list logical_switch_port ls1p1) ip link set pod1 netns pods mac=${A% *} ip=${A#* } ip netns exec pods ip link set pod1 address ${mac} ip netns exec pods ip link set pod1 up ip netns exec pods ip addr add ${ip} dev pod1 time ovs-vsctl wait-until interface pod1 external_ids:ovn-installed=true until ovn-appctl memory/show | grep ofctrl_sb_flow_ref_usage-KB:429496729; do ovn-nbctl set address_set address________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ addresses='["0.0.0.3"]' && ovn-nbctl --wait=hv sync ovn-nbctl set address_set address________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ addresses='["0.0.0.1", "0.0.0.2"]' && ovn-nbctl --wait=hv sync done
expected result: ovn-appctl memory/show displays proper value for ofctrl_sb_flow_ref_usage-KB
actual result:
after 48 iterations:
# ovn-appctl memory/show idl-cells-OVN_Southbound:1187 idl-cells-Open_vSwitch:157 if_status_mgr_ifaces_state_usage-KB:1 if_status_mgr_ifaces_usage-KB:1 lflow-cache-entries-cache-expr:3 lflow-cache-entries-cache-matches:73 lflow-cache-size-KB:8 local_datapath_usage-KB:1 ofctrl_desired_flow_usage-KB:32 ofctrl_installed_flow_usage-KB:23 ofctrl_sb_flow_ref_usage-KB:4294967295
noticed while investigating unrelated ovn-controller issues in case 03746492
- clones
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FDP-507 ovn-controller wrong accounting of ofctrl_sb_flow_ref_usage-KB
- Closed
- links to
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RHBA-2024:130931 ovn24.03 bug fix and enhancement update