wenquan2015 opened a new pull request, #17714:
URL: https://github.com/apache/nuttx/pull/17714
## Summary
fix tcp conn lock leak when port in use in tcp_selectport
## Impact
tcp
## Testing
step1: start iperf server listen 5000
step2: start iperf server listen 5000 again to trigger address in use error
step3: start iperf client, not block in tcp_selectport
```
NuttShell (NSH) NuttX-12.12.0-RC0
MOTD: username=admin password=Administrator
nsh> iperf -s -p 5000 &
iperf [4:100]
nsh> IP: 10.0.1.2
mode=tcp-server sip=10.0.1.2:5000,dip=0.0.0.0:5001, interval=3, time=0
nsh> iperf -s -p 5000
IP: 10.0.1.2
mode=tcp-server sip=10.0.1.2:5000,dip=0.0.0.0:5001, interval=3, time=0
tcp server bind error, error code: 98, reason: Unknown error 98
iperf exit
nsh>
nsh>
nsh>
nsh> iperf -c 10.0.1.1 -p 5001
IP: 10.0.1.2
mode=tcp-client sip=10.0.1.2:5001,dip=10.0.1.1:5001, interval=3, time=30
Interval Transfer Bandwidth
0.00- 20.53 sec 1171980288 Bytes 456.69 Mbits/sec
20.53- 26.75 sec 382631936 Bytes 492.13 Mbits/sec
26.75- 54.05 sec 1673445376 Bytes 490.39 Mbits/sec
0.00- 54.05 sec 4499996672 Bytes 666.05 Mbits/sec
iperf exit
```
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