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

[esawyja]

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!

[A Former User]

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

[esawyja]

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

[gohan]

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