tmedicci commented on PR #15962:
URL: https://github.com/apache/nuttx/pull/15962#issuecomment-2710484773
Hi @Laczen , thanks for submitting it!
I have no comments regarding the code. The changes are welcomed! But I've
found two possible bugs:
1. If I start the _client_ device before the _server_, the _server_ device
halts:
On _client_ device:
```
nsh> ifup wpan0
ifup wpan0...OK
nsh> udpclient fe80::ff:fe00:a
```
On _server_ device:
```
nsh> ifconfig wpan0 inet6 fe80::ff:fe00:a
nsh> ifup wpan0
ifup wpan0...OK
nsh>
nsh> (device is halted here, not accepting further commands)
```
2. Wi-Fi coexistence: as soon as I connect to an AP, the server stops
receiving the UDP packets:
On _server_ device:
```
nsh> ifconfig wpan0 inet6 fe80::ff:fe00:a
nsh> ifup wpan0
ifup wpan0...OK
nsh> udpserver &
udpserver [6:100]
```
On _client_ device:
```
nsh> ifup wpan0
ifup wpan0...OK
nsh> udpclient fe80::ff:fe00:a
client: 0. Sending 96 bytes
client: 0. Sent 96 bytes
```
Again, on _server_ device, the device stops receiving the UDP packets after
connected to the AP. The `udpserver` is still running. Please note that I
rearranged the log output to improve readability:
```
nsh> server: 0. Receiving up 1024 bytes
server: 0. Received 96 bytes from fe80:0000:0000:0000:0000:00ff:fe00:feff
port 5472
server: 1. Receiving up 1024 bytes
server: 1. Received 96 bytes from fe80:0000:0000:0000:0000:00ff:fe00:feff
port 5472
server: 2. Receiving up 1024 bytes
server: 2. Received 96 bytes from fe80:0000:0000:0000:0000:00ff:fe00:feff
port 5472
server: 3. Receiving up 1024 bytes
server: 3. Received 96 bytes from fe80:0000:0000:0000:0000:00ff:fe00:feff
port 5472
server: 4. Receiving up 1024 bytes
server: 4. Received 96 bytes from fe80:0000:0000:0000:0000:00ff:fe00:feff
port 5472
server: 5. Receiving up 1024 bytes
server: 5. Received 96 bytes from fe80:0000:0000:0000:0000:00ff:fe00:feff
port 5472
server: 6. Receiving up 1024 bytes
server: 6. Received 96 bytes from fe80:0000:0000:0000:0000:00ff:fe00:feff
port 5472
server: 7. Receiving up 1024 bytes
server: 7. Received 96 bytes from fe80:0000:0000:0000:0000:00ff:fe00:feff
port 5472
server: 8. Receiving up 1024 bytes
server: 8. Received 96 bytes from fe80:0000:0000:0000:0000:00ff:fe00:feff
port 5472
server: 9. Receiving up 1024 bytes
server: 9. Received 96 bytes from fe80:0000:0000:0000:0000:00ff:fe00:feff
port 5472
server: 10. Receiving up 1024 bytes
nsh> wapi psk wlan0 mypasswd 3
nsh> wapi essid wlan0 myssid 1
nsh> renew wlan0
nsh> ps
PID GROUP PRI POLICY TYPE NPX STATE EVENT SIGMASK
STACK COMMAND
0 0 0 FIFO Kthread - Ready 0000000000000000
0003056 Idle_Task
1 0 100 RR Kthread - Waiting Semaphore 0000000000000000
0004024 lpwork 0x3ffc0db8 0x3ffc0de8
2 2 100 RR Task - Running 0000000000000000
0003024 nsh_main
3 0 223 RR Kthread - Waiting Semaphore 0000000000000000
0001992 rt_timer
4 0 253 RR Kthread - Waiting MQ empty 0000000000000000
0006624 wifi
5 5 100 RR Task - Waiting Semaphore 0000000000000000
0004056 telnetd
6 6 100 RR Task - Waiting Semaphore 0000000000000000
0004040 udpserver
```
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