This just happened to me on a 14 hour print. I updated to RRF3.4. Came here to see what it could be. I resumed the print and is printing fine now. the print is still going as I write.
=== Diagnostics ===
RepRapFirmware for Duet 3 MB6HC version 3.4.0rc2 (2022-02-22 17:04:17) running on Duet 3 MB6HC v1.01 or later (SBC mode)
Board ID: 08DJM-956BA-NA3TN-6JTD0-3SJ6S-1V82V
Used output buffers: 10 of 40 (40 max)
=== RTOS ===
Static ram: 150984
Dynamic ram: 66520 of which 28 recycled
Never used RAM 129804, free system stack 114 words
Tasks: SBC(resourceWait:,0.7%,494) HEAT(notifyWait,0.0%,321) Move(notifyWait,1.7%,248) CanReceiv(notifyWait,0.0%,772) CanSender(notifyWait,0.0%,346) CanClock(delaying,0.0%,339) TMC(notifyWait,8.4%,58) MAIN(running,89.1%,923) IDLE(ready,0.0%,30), total 100.0%
Owned mutexes: HTTP(MAIN)
=== Platform ===
Last reset 15:54:21 ago, cause: power up
Last software reset at 2022-03-09 01:00, reason: HardFault, GCodes spinning, available RAM 130308, slot 1
Software reset code 0x4063 HFSR 0x80000000 CFSR 0x00000000 ICSR 0x00400803 BFAR 0x00000000 SP 0x2041b4f8 Task MAIN Freestk 1672 ok
Stack: 20429f28 2042c2d8 2041b594 00000001 0000002e 0045c81b 0045c676 61070000 20419a7c 2042bf34 00000000 00000001 00000000 004844d7 2042bf34 00000000 00000000 0048481f 003ffff0 004849f7 20429860 ffffffff 0934d918 2042bf34 20419a7c 2042c2dc ffffffff
Error status: 0x04
Aux0 errors 0,0,0
Step timer max interval 135
MCU temperature: min 47.3, current 47.5, max 47.7
Supply voltage: min 23.9, current 24.0, max 24.1, under voltage events: 0, over voltage events: 0, power good: yes
12V rail voltage: min 12.0, current 12.1, max 12.1, under voltage events: 0
Heap OK, handles allocated/used 99/1, heap memory allocated/used/recyclable 2048/160/126, gc cycles 0
Events: 2 queued, 2 completed
Driver 0: pos 60689, ok, SG min 0, mspos 928, reads 41145, writes 0 timeouts 0
Driver 1: pos 14056, ok, SG min 0, mspos 616, reads 41145, writes 0 timeouts 0
Driver 2: pos 50096, standstill, SG min 0, mspos 72, reads 41145, writes 0 timeouts 0
Driver 3: pos 0, standstill, SG min 0, mspos 664, reads 41146, writes 0 timeouts 0
Driver 4: pos 0, standstill, SG min 0, mspos 152, reads 41146, writes 0 timeouts 0
Driver 5: pos 0, standstill, SG min 0, mspos 104, reads 41145, writes 0 timeouts 0
Date/time: 2022-03-09 16:28:53
Slowest loop: 31.03ms; fastest: 0.05ms
=== Storage ===
Free file entries: 10
SD card 0 not detected, interface speed: 37.5MBytes/sec
SD card longest read time 0.0ms, write time 0.0ms, max retries 0
=== Move ===
DMs created 125, segments created 20, maxWait 796ms, bed compensation in use: none, comp offset 0.000
=== MainDDARing ===
Scheduled moves 678710, completed 678677, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state 3
=== AuxDDARing ===
Scheduled moves 0, completed 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1
=== Heat ===
Bed heaters 0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1, chamber heaters -1 -1 -1 -1, ordering errs 0
Heater 0 is on, I-accum = 0.3
Heater 1 is on, I-accum = 0.0
=== GCodes ===
Segments left: 1
Movement lock held by null
HTTP* is doing "M122" in state(s) 0 0, running macro
Telnet is idle in state(s) 0
File* is doing "G1 X453.419006 Y257.640015 E-0.570000" 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
LCD is idle in state(s) 0
SBC is idle in state(s) 0
Daemon is idle in state(s) 0
Aux2 is idle in state(s) 0
Autopause* is idle in state(s) 0
Code queue is empty
=== Filament sensors ===
Extruder 0: no data received
=== CAN ===
Messages queued 15065, received 12407, lost 0, boc 0
Longest wait 0ms for reply type 0, peak Tx sync delay 268, free buffers 50 (min 47), ts 3026/3026/0
Tx timeouts 0,0,0,0,0,0
=== SBC interface ===
Transfer state: 4, failed transfers: 0, checksum errors: 0
RX/TX seq numbers: 15043/15043
SPI underruns 0, overruns 0
State: 5, disconnects: 0, timeouts: 0, IAP RAM available 0x2b8b0
Buffer RX/TX: 1520/2544-0, open files: 0
=== Duet Control Server ===
Duet Control Server v3.4-rc2
File /opt/dsf/sd/gcodes/Pandero11in_Escalas_0.6n_0.3mm_PLA_13h57m.gcode is selected, processing
HTTP:
Executing macro 0:/macros/Diagnostics, started by M98 P"0:/macros/Diagnostics"
> Next stack level
File:
Buffered code: G1 X453.419 Y257.64 E-.57
Buffered code: G1 E-.03 F2400
Buffered code: G1 Z63.02 F720
Buffered code: G1 X457.643 Y264.663 F10800
Buffered code: G1 Z62.62 F720
Buffered code: G1 E.6 F2400
Buffered code: G1 F4200
Buffered code: G1 X458.599 Y265.619 E.09391
Buffered code: G1 F8640
Buffered code: G1 X457.643 Y264.663 E-.35695
Buffered code: G1 E-.24305 F2400
Buffered code: G1 Z63.02 F720
Buffered code: G1 X459.911 Y269.805 F10800
Buffered code: G1 Z62.62 F720
Buffered code: G1 E.6 F2400
Buffered code: G1 F4200
Buffered code: G1 X460.905 Y270.799 E.09959
Buffered code: G1 F8640
Buffered code: G1 X459.911 Y269.805 E-.37085
Buffered code: G1 E-.22915 F2400
Buffered code: G1 Z63.02 F720
Buffered code: G1 X463.158 Y276.331 F10800
Buffered code: G1 Z62.62 F720
Buffered code: G1 E.6 F2400
==> 992 bytes
Code buffer space: 1552
Configured SPI speed: 8000000Hz, TfrRdy pin glitches: 0
Full transfers per second: 39.36, max time between full transfers: 44.0ms, max pin wait times: 29.1ms/8.3ms
Codes per second: 18.47
Maximum length of RX/TX data transfers: 3928/1628