Raspberry PI 3 - Serial Gateway failing with Serial - write failed: Resource temporarily unavailable



  • Hi all,
    Has anyone seen this before on a Raspberry PI, when I restart it is fine again
    root@mmm_gateway:~# systemctl status mysgw
    ● mysgw.service - MySensors Gateway daemon
    Loaded: loaded (/etc/systemd/system/mysgw.service; enabled)
    Active: active (running) since Mon 2017-02-20 10:06:27 SAST; 20h ago
    Main PID: 577 (mysgw)
    CGroup: /system.slice/mysgw.service
    └─577 /usr/local/bin/mysgw

    Feb 20 10:50:01 mmm_gateway mysgw[577]: Serial - write failed: Resource temporarily unavailable
    Feb 20 10:50:01 mmm_gateway mysgw[577]: Serial - write failed: Resource temporarily unavailable
    Feb 20 10:50:01 mmm_gateway mysgw[577]: Serial - write failed: Resource temporarily unavailable
    Feb 20 10:50:05 mmm_gateway mysgw[577]: Serial - write failed: Resource temporarily unavailable
    Feb 20 10:50:06 mmm_gateway mysgw[577]: Serial - write failed: Resource temporarily unavailable
    Feb 20 10:50:06 mmm_gateway mysgw[577]: Serial - write failed: Resource temporarily unavailable
    Feb 20 10:50:06 mmm_gateway mysgw[577]: Serial - write failed: Resource temporarily unavailable
    Feb 20 10:50:07 mmm_gateway mysgw[577]: Serial - write failed: Resource temporarily unavailable
    Feb 20 10:50:07 mmm_gateway mysgw[577]: Serial - write failed: Resource temporarily unavailable
    Feb 20 10:50:09 mmm_gateway mysgw[577]: Serial - write failed: Resource temporarily unavailable
    root@mmm_gateway:~#
    root@mmm_gateway:~# systemctl restart mysgw
    root@mmm_gateway:~# systemctl status mysgw
    ● mysgw.service - MySensors Gateway daemon
    Loaded: loaded (/etc/systemd/system/mysgw.service; enabled)
    Active: active (running) since Tue 2017-02-21 07:03:21 SAST; 1s ago
    Main PID: 30189 (mysgw)
    CGroup: /system.slice/mysgw.service
    └─30189 /usr/local/bin/mysgw

    Feb 21 07:03:21 mmm_gateway systemd[1]: Started MySensors Gateway daemon.
    Feb 21 07:03:21 mmm_gateway mysgw[30189]: Starting gateway...
    Feb 21 07:03:21 mmm_gateway mysgw[30189]: Protocol version - 2.1.1
    root@mmm_gateway:~#

    I don't see any errors in /var/log/messages

    Thanks!



  • Doesn't the WiFi & Bluetooth on the RPi 3 use the serial port? Have you looked in to that?



  • mmmh I havent, but I don't use either on this implementation... Has not happened again.... Confusing...


  • Mod

    Consider using the ethernet gateway if you keep having trouble with the serial one


 

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