What is the problem?
I use pi zero w and found print has been stopped a few times in the middle of the print.
What did you already try to solve it?
I do not really know where to start, except for checking the logger. But I did not find any clue.
Logs (octoprint.log, serial.log or output on terminal tab at a minimum, browser error console if UI issue ... no logs, no support!)
2020-01-01 06:15:46,846 - octoprint.util.comm - ERROR - Unexpected error while reading from serial port
Traceback (most recent call last):
File "/home/pi/oprint/local/lib/python2.7/site-packages/octoprint/util/comm.py", line 2793, in _readline
ret = self._serial.readline()
File "/home/pi/oprint/local/lib/python2.7/site-packages/octoprint/util/comm.py", line 4932, in readline
c = self.read(1)
File "/home/pi/oprint/local/lib/python2.7/site-packages/serial/serialposix.py", line 501, in read
'device reports readiness to read but returned no data '
SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
2020-01-01 06:15:46,886 - octoprint.util.comm - ERROR - Please see https://faq.octoprint.org/serialerror for possible reasons of this.
2020-01-01 06:15:46,997 - octoprint.util.comm - INFO - Changing monitoring state from "Printing" to "Offline (Error: SerialException: 'device reports readiness to read but returned no data (device disconnected or multiple access on port?)' @ comm.py:_readline:2793)"
2020-01-01 06:15:48,636 - octoprint.plugins.tracking - INFO - Sent tracking event print_failed, payload: {'origin': 'local', 'reason': 'error', 'commerror_text': "SerialException: 'device reports readiness to read but returned no data (device disconnected or multiple access on port?)' @ comm.py:_readline:2793", 'file': '140e2d0f94e56c7d24d6ed946a74e6ee5397cd8f', 'elapsed': 5929}
2020-01-01 06:21:44,575 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2020-01-01 06:22:14,822 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {'octoprint_uptime': 98133}
2020-01-01 06:36:44,585 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2020-01-01 06:37:14,613 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {'octoprint_uptime': 99033}
2020-01-01 06:51:44,595 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2020-01-01 06:52:14,646 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {'octoprint_uptime': 99933}
2020-01-01 07:06:44,604 - octoprint.server.heartbeat - INFO - Server heartbeat <3
Traceback (most recent call last):
File "/home/pi/oprint/local/lib/python2.7/site-packages/octoprint/util/comm.py", line 2793, in _readline
ret = self._serial.readline()
File "/home/pi/oprint/local/lib/python2.7/site-packages/octoprint/util/comm.py", line 4932, in readline
c = self.read(1)
File "/home/pi/oprint/local/lib/python2.7/site-packages/serial/serialposix.py", line 501, in read
'device reports readiness to read but returned no data '
SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)
2020-01-01 06:15:46,886 - octoprint.util.comm - ERROR - Please see https://faq.octoprint.org/serialerror for possible reasons of this.
2020-01-01 06:15:46,997 - octoprint.util.comm - INFO - Changing monitoring state from "Printing" to "Offline (Error: SerialException: 'device reports readiness to read but returned no data (device disconnected or multiple access on port?)' @ comm.py:_readline:2793)"
2020-01-01 06:15:48,636 - octoprint.plugins.tracking - INFO - Sent tracking event print_failed, payload: {'origin': 'local', 'reason': 'error', 'commerror_text': "SerialException: 'device reports readiness to read but returned no data (device disconnected or multiple access on port?)' @ comm.py:_readline:2793", 'file': '140e2d0f94e56c7d24d6ed946a74e6ee5397cd8f', 'elapsed': 5929}
Additional information about your setup (OctoPrint version, OctoPi version, printer, firmware, browser, operating system, ... as much data as possible)
octopi 0.17.
octoprint 1.3.12