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Print stops with "Warning: Missed line detected - correcting buffer usage"

LouGeezerLouGeezer
in Bug Reports

Print stopped 12 hours into a 17 hour print job, with the following error log.  Running Host 1.5.0 / firmware 92.3:

09:06:24.818 : N131069 G1 X106.908 Y11.58 E5777.908 *70
09:06:24.833 : ok 65528
09:06:24.833 : Warning: Missed line detected - correcting buffer usage.
09:06:24.865 : N131070 G1 X107.01 Y11.798 E5777.917 *74
09:06:24.865 : ok 65529
09:06:24.865 : Warning: Missed line detected - correcting buffer usage.
09:06:24.865 : N131071 G1 X107.148 Y12.006 E5777.928 *120
09:06:24.880 : ok 65530
09:06:24.880 : Warning: Missed line detected - correcting buffer usage.
09:06:24.880 : N131072 G1 X107.485 Y12.33 E5777.947 *64
09:06:24.911 : ok 65531
09:06:24.911 : Warning: Missed line detected - correcting buffer usage.
09:06:24.943 : N131073 G1 X107.917 Y12.552 E5777.968 *120
09:06:24.943 : ok 65532
09:06:24.943 : Warning: Missed line detected - correcting buffer usage.
09:06:24.943 : N131074 G1 X108.149 Y12.612 E5777.978 *117
09:06:24.958 : ok 65533
09:06:24.958 : Warning: Missed line detected - correcting buffer usage.
09:06:24.958 : N131075 G1 X108.389 Y12.64 E5777.988 *66
09:06:24.990 : ok 65534
09:06:24.990 : Warning: Missed line detected - correcting buffer usage.
09:06:25.005 : ok 65535
09:06:25.005 : Warning: Missed line detected - correcting buffer usage.
09:06:25.005 : N131076 G1 E5774.988 F1200 *44
09:06:25.005 : N131077 G0 X45.349 Y10.24 Z43.9 *105
09:06:25.021 : N131078 G1 E5777.988 F1200 *33
09:06:25.021 : ok 0
09:06:25.052 : ok 1
09:06:25.083 : ok 2
09:06:25.130 : ok 3
09:06:25.146 : ok 4
09:06:25.177 : ok 5
09:06:25.193 : ok 6

Comments

  • LANMANLANMAN
    My print jobs do not stop but I get.
    : Warning: Missed line detected - correcting buffer usage.
    all through the log file
    I am running armel on a raspberry pi 2
  • RepetierRepetier
    In the log above I see no missed lines. I hope that this is gone with the 0.65 release.

    @LANMAN This means that a ok xy response was corrupted when sending back. I also have a printer where this happens the the messages there are correct. If you check your log where you see the message you should see that the ok before the one with the message is somehow modified. This is a communication error the server warns you about and the server also corrected the error, so the print can continue. Try different cable/baud rate and see if you can get rid of the message. I also need to test if my wifi module causes the errors as the cable is along that stick.
  • Kamikazer2Kamikazer2
    I have similar problem with version 2.0.1:

    17:30:25.594 : Warning: Missed line detected - correcting buffer usage.
    17:30:31.595 : k?47458
    17:30:31.623 : Warning: Missed line detected - correcting buffer usage.
    17:31:44.134 : ?ok 50053
    17:31:44.151 : Warning: Missed line detected - correcting buffer usage.
    17:31:47.117 : Stampa layer 41 of 328
    17:34:28.110 : Stampa layer 42 of 328
    17:35:00.757 : ?ok 59238
    17:35:00.769 : Warning: Missed line detected - correcting buffer usage.
    17:35:33.280 : ?ok 61292
    17:35:33.288 : Warning: Missed line detected - correcting buffer usage.
    17:35:33.845 : k?????j
    17:35:33.853 : Warning: Missed line detected - correcting buffer usage.
    17:37:07.775 : Stampa layer 43 of 328
    17:37:21.101 : ?ok 156
    17:37:21.125 : Warning: Missed line detected - correcting buffer usage.
    17:37:33.360 : Warning: Missed line detected - correcting buffer usage.
    17:39:41.166 : k>?S?j
    17:39:41.170 : Warning: Missed line detected - correcting buffer usage.
    17:39:47.412 : Stampa layer 44 of 328
    17:41:17.090 : k~L&S?j
    17:41:17.099 : Warning: Missed line detected - correcting buffer usage.
    17:41:20.310 : k?12711
    17:41:20.327 : Warning: Missed line detected - correcting buffer usage.
    17:41:35.819 : Error:Wrong checksum
    17:41:35.822 : Resend:12827
    17:42:28.307 : Stampa layer 45 of 328
    17:42:40.772 : k?14985
    17:42:40.805 : Warning: Missed line detected - correcting buffer usage.
    17:42:42.411 : ?ok 15055
    17:42:42.431 : Warning: Missed line detected - correcting buffer usage.
    17:43:45.824 : k?18936
    17:43:45.824 : Warning: Missed line detected - correcting buffer usage.
    17:43:48.962 : k?19152
    17:43:48.978 : Warning: Missed line detected - correcting buffer usage.
    17:45:08.960 : Stampa layer 46 of 328
    17:45:37.531 : k 23257
    17:45:37.539 : Warning: Missed line detected - correcting buffer usage.
    17:46:36.570 : ?ok 27119
    17:46:36.587 : Warning: Missed line detected - correcting buffer usage.
    17:47:51.882 : Stampa layer 47 of 328
    17:49:03.935 : k6????j
    17:49:03.951 : Warning: Missed line detected - correcting buffer usage.
    17:50:41.404 : Stampa layer 48 of 328
    17:51:12.974 : k?38458
    17:51:12.978 : Warning: Missed line detected - correcting buffer usage.

  • RepetierRepetier
    Here you can see very clearly
    17:35:33.845 : k?????j

    which wanted to be a "ok 61800" or something like that. It's not happening that often but form time to time the serial communication seems to be that much out of sync that it reads different chars. As you see in log the errors get fixed on the fly without loosing any communication speed. So not a real problem but quite far from a good connection. Check your cables especially usb if they are near heater or stepper cables. Maybe a different usb cable shielded not too long would also help. It's always hard to say where the interference comes from since all we see is what we receive from windows and not where it had which content.
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