Memory leak detected in ovn-controller

[zhangzujian]

Bug Report

Expected Behavior

Actual Behavior

Memory leak detected in ovn-controller.
kubectl-ko-log/kube-ovn-worker/ovn/ovn-controller.valgrind.log.67100
==00:00:05:52.763 67100== 1 bytes in 1 blocks are possibly lost in loss record 3 of 3,106
==00:00:05:52.763 67100==    at 0x4848899: malloc (in /usr/libexec/valgrind/vgpreload_memcheck-amd64-linux.so)
==00:00:05:52.763 67100==    by 0x4A3DC48: xmalloc__ (util.c:140)
==00:00:05:52.763 67100==    by 0x4A3DCA8: xmemdup (util.c:188)
==00:00:05:52.763 67100==    by 0x13D7F8: ovn_flow_init (ofctrl.c:1624)
==00:00:05:52.763 67100==    by 0x13D7F8: desired_flow_alloc (ofctrl.c:1649)
==00:00:05:52.763 67100==    by 0x140E5D: ofctrl_check_and_add_flow_metered (ofctrl.c:1230)
==00:00:05:52.763 67100==    by 0x140FF2: ofctrl_add_flow_metered (ofctrl.c:1272)
==00:00:05:52.763 67100==    by 0x14101B: ofctrl_add_flow (ofctrl.c:1260)
==00:00:05:52.763 67100==    by 0x160C62: put_local_common_flows (physical.c:925)
==00:00:05:52.763 67100==    by 0x162079: consider_port_binding (physical.c:1452)
==00:00:05:52.763 67100==    by 0x164636: physical_run (physical.c:2288)
==00:00:05:52.763 67100==    by 0x15B19E: en_pflow_output_run (ovn-controller.c:3736)
==00:00:05:52.763 67100==    by 0x494ED12: engine_recompute (inc-proc-eng.c:415)
==00:00:05:52.763 67100== 
==00:00:05:52.763 67100== 1 bytes in 1 blocks are possibly lost in loss record 4 of 3,106
==00:00:05:52.763 67100==    at 0x4848899: malloc (in /usr/libexec/valgrind/vgpreload_memcheck-amd64-linux.so)
==00:00:05:52.763 67100==    by 0x4A3DC48: xmalloc__ (util.c:140)
==00:00:05:52.763 67100==    by 0x4A3DCA8: xmemdup (util.c:188)
==00:00:05:52.763 67100==    by 0x13D7F8: ovn_flow_init (ofctrl.c:1624)
==00:00:05:52.763 67100==    by 0x13D7F8: desired_flow_alloc (ofctrl.c:1649)
==00:00:05:52.763 67100==    by 0x140E5D: ofctrl_check_and_add_flow_metered (ofctrl.c:1230)
==00:00:05:52.763 67100==    by 0x140FF2: ofctrl_add_flow_metered (ofctrl.c:1272)
==00:00:05:52.763 67100==    by 0x14101B: ofctrl_add_flow (ofctrl.c:1260)
==00:00:05:52.763 67100==    by 0x15FFB4: add_default_drop_flow (physical.c:872)
==00:00:05:52.763 67100==    by 0x164BB2: physical_run (physical.c:2419)
==00:00:05:52.763 67100==    by 0x15B19E: en_pflow_output_run (ovn-controller.c:3736)
==00:00:05:52.763 67100==    by 0x494ED12: engine_recompute (inc-proc-eng.c:415)
==00:00:05:52.763 67100==    by 0x494F27F: engine_run_node (inc-proc-eng.c:491)
==00:00:05:52.763 67100==    by 0x494F27F: engine_run (inc-proc-eng.c:528)
==00:00:05:52.763 67100== 
==00:00:05:52.763 67100== 1 bytes in 1 blocks are possibly lost in loss record 5 of 3,106
==00:00:05:52.763 67100==    at 0x4848899: malloc (in /usr/libexec/valgrind/vgpreload_memcheck-amd64-linux.so)
==00:00:05:52.763 67100==    by 0x4A3DC48: xmalloc__ (util.c:140)
==00:00:05:52.763 67100==    by 0x4A3DCA8: xmemdup (util.c:188)
==00:00:05:52.763 67100==    by 0x13D7F8: ovn_flow_init (ofctrl.c:1624)
==00:00:05:52.763 67100==    by 0x13D7F8: desired_flow_alloc (ofctrl.c:1649)
==00:00:05:52.763 67100==    by 0x140E5D: ofctrl_check_and_add_flow_metered (ofctrl.c:1230)
==00:00:05:52.763 67100==    by 0x140FF2: ofctrl_add_flow_metered (ofctrl.c:1272)
==00:00:05:52.763 67100==    by 0x14101B: ofctrl_add_flow (ofctrl.c:1260)
==00:00:05:52.763 67100==    by 0x15FFB4: add_default_drop_flow (physical.c:872)
==00:00:05:52.763 67100==    by 0x164E1A: physical_run (physical.c:2496)
==00:00:05:52.763 67100==    by 0x15B19E: en_pflow_output_run (ovn-controller.c:3736)
==00:00:05:52.763 67100==    by 0x494ED12: engine_recompute (inc-proc-eng.c:415)
==00:00:05:52.763 67100==    by 0x494F27F: engine_run_node (inc-proc-eng.c:491)
==00:00:05:52.763 67100==    by 0x494F27F: engine_run (inc-proc-eng.c:528)
==00:00:05:52.763 67100== 
==00:00:05:52.763 67100== 1 bytes in 1 blocks are possibly lost in loss record 6 of 3,106
==00:00:05:52.763 67100==    at 0x4848899: malloc (in /usr/libexec/valgrind/vgpreload_memcheck-amd64-linux.so)
==00:00:05:52.763 67100==    by 0x4A3DC48: xmalloc__ (util.c:140)
==00:00:05:52.763 67100==    by 0x4A3DCA8: xmemdup (util.c:188)
==00:00:05:52.763 67100==    by 0x13D7F8: ovn_flow_init (ofctrl.c:1624)
==00:00:05:52.763 67100==    by 0x13D7F8: desired_flow_alloc (ofctrl.c:1649)
==00:00:05:52.763 67100==    by 0x140E5D: ofctrl_check_and_add_flow_metered (ofctrl.c:1230)
==00:00:05:52.763 67100==    by 0x140FF2: ofctrl_add_flow_metered (ofctrl.c:1272)
==00:00:05:52.763 67100==    by 0x14101B: ofctrl_add_flow (ofctrl.c:1260)
==00:00:05:52.763 67100==    by 0x15FFB4: add_default_drop_flow (physical.c:872)
==00:00:05:52.763 67100==    by 0x164EFD: physical_run (physical.c:2529)
==00:00:05:52.763 67100==    by 0x15B19E: en_pflow_output_run (ovn-controller.c:3736)
==00:00:05:52.763 67100==    by 0x494ED12: engine_recompute (inc-proc-eng.c:415)
==00:00:05:52.763 67100==    by 0x494F27F: engine_run_node (inc-proc-eng.c:491)
==00:00:05:52.763 67100==    by 0x494F27F: engine_run (inc-proc-eng.c:528)
==00:00:05:52.763 67100== 
==00:00:05:52.763 67100== 1 bytes in 1 blocks are possibly lost in loss record 7 of 3,106
==00:00:05:52.763 67100==    at 0x4848899: malloc (in /usr/libexec/valgrind/vgpreload_memcheck-amd64-linux.so)
==00:00:05:52.763 67100==    by 0x4A3DC48: xmalloc__ (util.c:140)
==00:00:05:52.763 67100==    by 0x4A3DCA8: xmemdup (util.c:188)
==00:00:05:52.763 67100==    by 0x13D7F8: ovn_flow_init (ofctrl.c:1624)
==00:00:05:52.763 67100==    by 0x13D7F8: desired_flow_alloc (ofctrl.c:1649)
==00:00:05:52.763 67100==    by 0x140E5D: ofctrl_check_and_add_flow_metered (ofctrl.c:1230)
==00:00:05:52.763 67100==    by 0x140FF2: ofctrl_add_flow_metered (ofctrl.c:1272)
==00:00:05:52.763 67100==    by 0x14101B: ofctrl_add_flow (ofctrl.c:1260)
==00:00:05:52.763 67100==    by 0x160C62: put_local_common_flows (physical.c:925)
==00:00:05:52.763 67100==    by 0x161C9C: consider_port_binding (physical.c:1637)
==00:00:05:52.763 67100==    by 0x163E37: physical_eval_port_binding (physical.c:2163)
==00:00:05:52.763 67100==    by 0x1640DC: physical_handle_flows_for_lport (physical.c:2224)
==00:00:05:52.763 67100==    by 0x15AEDA: pflow_output_sb_port_binding_handler (ovn-controller.c:3819)
==00:00:05:52.763 67100== 
...

valgrind-report.txt

Steps to Reproduce the Problem

Additional Info

• Kubernetes version:

  Output of kubectl version:

  (paste your output here)
  

• kube-ovn version:

  (paste your output here)
  

• operation-system/kernel version:

  Output of awk -F '=' '/PRETTY_NAME/ { print $2 }' /etc/os-release:
  Output of uname -r:

  (paste your output here)