Spontaneous reboot after print completed



  • I've been printing most of the day using the latest RC10 release. I had no problems until my last print of the day finished. I was looking at the print waiting for the bed to cool a bit and the Duet rebooted. I captured the results of the M122 and it shows that the software was reset by software due to being stuck in a spin loop.

    4/26/2020, 4:26:26 PM M122
    === Diagnostics ===
    RepRapFirmware for Duet 2 WiFi/Ethernet version 3.01-RC10 running on Duet Ethernet 1.02 or later
    Board ID: 08DDM-9FAM2-LW4SD-6J9F4-3S06R-9LXVWUsed output buffers: 3 of 24 (14 max)
    === RTOS ===
    Static ram: 28044
    Dynamic ram: 92464 of which 536 recycled
    Exception stack ram used: 464
    Never used ram: 9564
    Tasks: NETWORK(ready,176) HEAT(blocked,1228) MAIN(running,1920) IDLE(ready,80)
    Owned mutexes:
    === Platform ===
    Last reset 00:00:31 ago, cause: software
    Last software reset at 2020-04-26 16:25, reason: Stuck in spin loop, spinning module PrintMonitor, available RAM 9364 bytes (slot 1)
    Software reset code 0x4089 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x0041f80f BFAR 0xe000ed38 SP 0x20005334 Task 0x4e49414d
    Stack: 00456dfb 0045a750 61070000 3e4ccccd 3fc99999 43e4a000 c2f014f8 4a7424b6 3c90fdcc 447a005d 420d980e
    Error status: 8
    Free file entries: 10
    SD card 0 detected, interface speed: 20.0MBytes/sec
    SD card longest block write time: 0.0ms, max retries 0
    MCU temperature: min 54.6, current 56.5, max 56.9
    Supply voltage: min 12.1, current 12.2, max 12.3, under voltage events: 0, over voltage events: 0, power good: yes
    Driver 0: standstill, SG min/max 0/276
    Driver 1: standstill, SG min/max 0/264
    Driver 2: standstill, SG min/max 0/258
    Driver 3: standstill, SG min/max not available
    Driver 4: standstill, SG min/max not available
    Date/time: 2020-04-26 16:26:23
    Cache data hit count 60420221
    Slowest loop: 4.79ms; fastest: 0.14ms
    I2C nak errors 0, send timeouts 0, receive timeouts 0, finishTimeouts 0, resets 0
    === Move ===
    Hiccups: 0(0), FreeDm: 169, MinFreeDm: 163, MaxWait: 22136ms
    Bed compensation in use: none, comp offset 0.000
    === MainDDARing ===
    Scheduled moves: 5, completed moves: 5, StepErrors: 0, LaErrors: 0, Underruns: 0, 0 CDDA state: -1
    === AuxDDARing ===
    Scheduled moves: 0, completed moves: 0, StepErrors: 0, LaErrors: 0, Underruns: 0, 0 CDDA state: -1
    === Heat ===
    Bed heaters = 0 -1 -1 -1, chamberHeaters = -1 -1 -1 -1
    Heater 0 is on, I-accum = 0.0
    Heater 1 is on, I-accum = 0.0
    === GCodes ===
    Segments left: 0
    Movement lock held by null
    HTTP is idle in state(s) 0
    Telnet is idle in state(s) 0
    File is idle in state(s) 0
    USB is idle in state(s) 0
    Aux is idle in state(s) 0
    Trigger is idle in state(s) 0
    Queue is idle in state(s) 0
    Daemon is idle in state(s) 0
    Autopause is idle in state(s) 0
    Code queue is empty.
    === Network ===
    Slowest loop: 12.20ms; fastest: 0.02ms
    Responder states: HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0)
    HTTP sessions: 2 of 8
    Interface state active, link 100Mbps full duplex


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