In vxlan mode with more than 2047 lrp in router, build_ports()
prints "all port tunnel ids exhausted", and frees the lrp port.
However, lsp of type "router" connected to the lrp still holds
the pointer in port->peer. This leads to northd crash in
build_lflows().
CallTrace:
build_lswitch_rport_arp_req_flows
build_lswitch_ip_unicast_lookup
build_lswitch_and_lrouter_iterate_by_op
build_lflows
en_lflow_run
engine_recompute
engine_run
inc_proc_northd_run
main
Fixes: 3044132261d3 ("northd: Enhance implementation of port tunnel key
requests.")
Signed-off-by: Tao Liu <taoliu...@163.com>
---
northd/northd.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/northd/northd.c b/northd/northd.c
index c10e5c20c..fe36a0362 100644
--- a/northd/northd.c
+++ b/northd/northd.c
@@ -4598,6 +4598,9 @@ ovn_port_allocate_key(const struct sbrec_chassis_table
*sbrec_chassis_table,
if (op->sb) {
sbrec_port_binding_delete(op->sb);
}
+ if (op->peer) {
+ op->peer->peer = NULL;
+ }
ovs_list_remove(&op->list);
ovn_port_destroy(ports, op);
}
--
2.31.1
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