[3.6.0-beta.4 SBC] WatchdogTimeout - bad header 0xff

[timschneider]

Another failure today

Feb 15 22:05:47 Meltingplot-MBL-480-vaswsq DuetControlServer[4948]: [info] Printing resumed
Feb 16 00:59:08 Meltingplot-MBL-480-vaswsq DuetControlServer[4948]: [warn] Restarting full transfer because a bad header format code was received (0xff)
Feb 16 00:59:09 Meltingplot-MBL-480-vaswsq DuetControlServer[4948]: [warn] Lost connection to Duet (Timeout while waiting for transfer ready pin)
Feb 16 00:59:09 Meltingplot-MBL-480-vaswsq DuetControlServer[4948]: [info] Connection to Duet established
Feb 16 00:59:09 Meltingplot-MBL-480-vaswsq DuetControlServer[4948]: [warn] Daemon: Aborting orphaned macro file daemon.g
Feb 16 00:59:09 Meltingplot-MBL-480-vaswsq DuetControlServer[4948]: [info] Aborted macro file daemon.g
Feb 16 00:59:09 Meltingplot-MBL-480-vaswsq DuetControlServer[4948]: [warn] SPI connection has been reset
Feb 16 00:59:09 Meltingplot-MBL-480-vaswsq DuetControlServer[4948]: [info] Aborted job file
Feb 16 00:59:09 Meltingplot-MBL-480-vaswsq DuetControlServer[4948]: [info] Starting macro file config.g on channel Trigger
Feb 16 00:59:15 Meltingplot-MBL-480-vaswsq DuetControlServer[4948]: [error] M584: Driver 50.0 does not exist
Feb 16 00:59:15 Meltingplot-MBL-480-vaswsq DuetControlServer[4948]: Driver 51.0 does not exist
Feb 16 00:59:15 Meltingplot-MBL-480-vaswsq DuetControlServer[4948]: [info] Starting macro file config-override.g on channel Trigger
Feb 16 00:59:15 Meltingplot-MBL-480-vaswsq DuetControlServer[4948]: [info] Trigger: Finished macro file config-override.g
Feb 16 00:59:15 Meltingplot-MBL-480-vaswsq DuetControlServer[4948]: [info] Event logging stopped
Feb 16 00:59:15 Meltingplot-MBL-480-vaswsq DuetControlServer[4948]: [info] Event logging to 0:/sys/eventlog.log started

2025-02-15 22:05:47 Printing resumed
2025-02-16 00:59:09 Warning: Lost connection to Duet (Timeout while waiting for transfer ready pin)
2025-02-16 00:59:09 Connection to Duet established
2025-02-16 00:59:09 Warning: SPI connection has been reset
2025-02-16 00:59:09 Connection to SBC established!
2025-02-16 00:59:15 Error: M584: Driver 50.0 does not exist
Driver 51.0 does not exist
2025-02-16 00:59:15 G10 P0 X0 Y0 Z0
2025-02-16 00:59:15 G10 P0 R0 S0
2025-02-16 00:59:15 G10 L2 P1 X0.000000 Y0.000000 Z0.000000
2025-02-16 00:59:15 G10 L2 P2 X0.000000 Y0.000000 Z0.000000
2025-02-16 00:59:15 G10 L2 P3 X0.000000 Y0.000000 Z0.000000
2025-02-16 00:59:15 G10 L2 P4 X0.000000 Y0.000000 Z0.000000
2025-02-16 00:59:15 G10 L2 P5 X0.000000 Y0.000000 Z0.000000
2025-02-16 00:59:15 G10 L2 P6 X0.000000 Y0.000000 Z0.000000
2025-02-16 00:59:15 G10 L2 P7 X0.000000 Y0.000000 Z0.000000
2025-02-16 00:59:15 G10 L2 P8 X0.000000 Y0.000000 Z0.000000
2025-02-16 00:59:15 G10 L2 P9 X0.000000 Y0.000000 Z0.000000
2025-02-16 00:59:15 Event logging stopped
2025-02-16 00:59:15 Event logging started

M122
=== Diagnostics ===
RepRapFirmware for Duet 3 MB6HC version 3.6.0-beta.4 (2025-02-11 09:51:22) running on Duet 3 MB6HC v1.02 or 1.02a (SBC mode)
Board ID: 08DJM-9P63L-DJ3T8-6JKD4-3SJ6K-9A77A
Used output buffers: 1 of 40 (17 max)
Error in macro line 29 while starting up: M584: Driver 50.0 does not exist
Driver 51.0 does not exist

=== RTOS ===
Static ram: 137396
Dynamic ram: 98044 of which 3056 recycled
Never used RAM 105560, free system stack 180 words
Tasks: LASER(5,nWait 7,0.0%,269) SBC(2,nWait 7,1.0%,725) HEAT(3,nWait 6,0.0%,323) Move(4,nWait 6,0.0%,323) TMC(4,nWait 6,3.0%,375) CanReceiv(6,nWait 1,0.0%,805) CanSender(5,nWait 7,0.0%,334) CanClock(7,delaying,0.0%,350) MAIN(1,running,95.9%,101) IDLE(0,ready,0.0%,29) USBD(3,blocked,0.0%,144), total 100.0%
Owned mutexes: HTTP(MAIN)
=== Platform ===
Last reset 06:21:05 ago, cause: software
Last software reset at 2025-02-16 00:59, reason: WatchdogTimeout, Gcodes spinning, available RAM 83312, slot 1
Software reset code 0x00a3 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x1440e04f BFAR 0x00000000 SP 0x2045ffa8 Task MAIN Freestk 78286 ok
Stack: fff530e0 0000f850 0000f850 0000f850 f846069c 00000000 0044b234 a1030027 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
=== Storage ===
Free file entries: 20
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 ===
Segments created 0, maxWait 0ms, bed comp in use: none, height map offset 0.000, hiccups added 0/0 (0.00/0.00ms), max steps late 0, ebfmin 0.00, ebfmax 0.00
Pos req/act/dcf: 0.00/0/0.00 0.00/0/0.00 0.00/0/0.00
Next step interrupt due in 140 ticks, disabled
Driver 0: standstill, SG min n/a, mspos 8, reads 53019, writes 11 timeouts 0
Driver 1: standstill, SG min n/a, mspos 8, reads 53019, writes 11 timeouts 0
Driver 2: standstill, SG min n/a, mspos 760, reads 53006, writes 24 timeouts 0
Driver 3: standstill, SG min n/a, mspos 40, reads 53006, writes 24 timeouts 0
Driver 4: standstill, SG min n/a, mspos 232, reads 53006, writes 24 timeouts 0
Driver 5: standstill, SG min n/a, mspos 260, reads 53008, writes 22 timeouts 0
Phase step loop runtime (us): min=0, max=18, frequency (Hz): min=1918, max=2094
=== DDARing 0 ===
Scheduled moves 0, completed 0, LaErrors 0, Underruns [0, 0, 0]
Segments left 0, axes/extruders owned 0x00000000, drives owned 0x00000000
Code queue is empty
=== DDARing 1 ===
Scheduled moves 0, completed 0, LaErrors 0, Underruns [0, 0, 0]
Segments left 0, axes/extruders owned 0x00000000, drives owned 0x00000000
Code queue is empty
=== Heat ===
Bed heaters 0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1, chamber heaters -1 -1 -1 -1 -1 -1 -1 -1, ordering errs 0
=== GCodes ===
Movement locks held by null, null
HTTP* is doing "M122" 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
LCD is idle in state(s) 0
SBC is idle in state(s) 0
Daemon* is idle in state(s) 0 0, running macro
Aux2 is idle in state(s) 0
Autopause is idle in state(s) 0
File2 is idle in state(s) 0
Queue2 is idle in state(s) 0
=== Filament sensors ===
Driver 31: pos 13718.32, errs: frame 0 parity 0 ovrun 0 pol 0 ovdue 0
=== CAN ===
Messages queued 199813, received 365858, lost 0, ignored 0, errs 0, boc 0
Longest wait 241ms for reply type 6041, peak Tx sync delay 384, free buffers 50 (min 49), ts 108370/108369/0
Tx timeouts 0,0,0,0,0,0
=== SBC interface ===
Transfer state: 5, failed transfers: 0, checksum errors: 0
RX/TX seq numbers: 53927/29369
SPI underruns 0, overruns 0
State: 5, disconnects: 0, timeouts: 0 total, 0 by SBC, IAP RAM available 0x27a80
Buffer RX/TX: 0/0-0, open files: 0
=== Duet Control Server ===
Duet Control Server version 3.6.0-beta.4 (2025-02-11 12:02:27, 32-bit)
HTTP+Executed:
> Executing M122
Daemon:
>> Doing macro daemon.g, started by system
Code buffer space: 4096
Configured SPI speed: 8000000Hz, TfrRdy pin glitches: 1
Full transfers per second: 39.57, max time between full transfers: 85.1ms, max pin wait times: 945.5ms/6.2ms
Codes per second: 8.62
Maximum length of RX/TX data transfers: 5444/1664

M122 B50
Diagnostics for board 50:
Duet EXP1HCL rev 1.0a or earlier firmware version 3.6.0-beta.4 (2025-02-10 20:09:59)
Bootloader ID: SAME5x bootloader version 2.4 (2021-12-10)
All averaging filters OK
Never used RAM 45228, free system stack 178 words
Tasks: EncCal(1,nWait 6,0.0%,469) Move(3,nWait 7,0.1%,97) CLSend(3,nWait 6,0.0%,149) TMC(4,nWait 6,70.4%,317) HEAT(2,nWait 6,0.1%,105) CanAsync(5,nWait 4,0.0%,70) CanRecv(3,nWait 1,0.0%,31) CanClock(5,nWait 1,0.0%,63) MAIN(1,running,28.1%,253) IDLE(0,ready,0.0%,29) AIN(2,nWait 2,1.3%,255), total 100.0%
Owned mutexes:
Last reset 20:42:45 ago, cause: software
Last software reset data not available
Moves scheduled 410248, hiccups 0 (0.00/0.00ms), segs 259, step errors 0 (types 0x0), maxLate 0 maxPrep 2467, ebfmin 0.00 max 0.00
Phase step loop runtime (us): min=34, max=69, frequency (Hz): min=488, max=17045
Peak sync jitter -10/6, peak Rx sync delay 192, resyncs 0/1, next timer interrupt due in 4 ticks, enabled, next step interrupt due in 4205270383 ticks, disabled
VIN voltage: min 24.6, current 24.6, max 24.6
V12 voltage: min 12.2, current 12.2, max 12.2
MCU temperature: min 29.2C, currentDriver 0: pos 1924, 80.0 steps/mm, ok, SG min n/a, mspos 8, reads 55386, writes 16871 timeouts 1524
Last sensors broadcast 0x00000000 found 0 63 ticks ago, 0 ordering errs, loop time 0
CAN messages queued 596576, send timeouts 0, received 1061897, lost 0, ignored 0, errs 0, boc 0, free buffers 38, min 33, error reg 0
dup 0, oos 0/0/0/0, bm 0, wbm 0, rxMotionDelay 573, adv 17915/70063
Closed loop driver 0 mode: closed loop, pre-error threshold: 2.00, error threshold: 4.00, encoder type rotaryAS5047, position 9853
Encoder reverse polarity: yes, full rotations 0, last angle 9854, minCorrection=-9.0, maxCorrection=9.4, agc 57, mag 4645, no error
Tuning mode: 0, tuning error: 0, collecting data: no
Accelerometer: none
I2C bus errors 12, naks 0, contentions 0, other errors 0

M122 B51
Diagnostics for board 51:
Duet EXP1HCL rev 1.0a or earlier firmware version 3.6.0-beta.4 (2025-02-10 20:09:59)
Bootloader ID: SAME5x bootloader version 2.4 (2021-12-10)
All averaging filters OK
Never used RAM 44892, free system stack 174 words
Tasks: EncCal(1,nWait 6,0.0%,469) Move(3,nWait 7,0.1%,97) CLSend(3,nWait 6,0.0%,149) TMC(4,nWait 6,70.2%,317) HEAT(2,nWait 6,0.1%,105) CanAsync(5,nWait 4,0.0%,70) CanRecv(3,nWait 1,0.0%,31) CanClock(5,nWait 1,0.0%,63) MAIN(1,running,28.3%,253) IDLE(0,ready,0.0%,29) AIN(2,nWait 2,1.3%,255), total 100.0%
Owned mutexes:
Last reset 20:43:05 ago, cause: software
Last software reset data not available
Moves scheduled 371581, hiccups 0 (0.00/0.00ms), segs 273, step errors 0 (types 0x0), maxLate 0 maxPrep 2394, ebfmin 0.00 max 0.00
Phase step loop runtime (us): min=34, max=70, frequency (Hz): min=491, max=16304
Peak sync jitter -7/9, peak Rx sync delay 192, resyncs 0/1, next timer interrupt due in 1 ticks, enabled, next step interrupt due in 4190702455 ticks, disabled
VIN voltage: min 24.2, current 24.2, max 24.3
V12 voltage: min 12.0, current 12.1, max 12.1
MCU temperature: min 28.2C, current Driver 0: pos -1824, 80.0 steps/mm, ok, SG min n/a, mspos 8, reads 21706, writes 13725 timeouts 1238
Last sensors broadcast 0x00000000 found 0 131 ticks ago, 0 ordering errs, loop time 0
CAN messages queued 596733, send timeouts 0, received 1023400, lost 0, ignored 0, errs 0, boc 0, free buffers 38, min 32, error reg 0
dup 0, oos 0/0/0/0, bm 0, wbm 0, rxMotionDelay 544, adv 18140/70373
Closed loop driver 0 mode: closed loop, pre-error threshold: 2.00, error threshold: 4.00, encoder type rotaryAS5047, position 9340
Encoder reverse polarity: yes, full rotations 0, last angle 9341, minCorrection=-35.3, maxCorrection=30.5, agc 47, mag 4612, no error
Tuning mode: 0, tuning error: 0, collecting data: no
Accelerometer: none
I2C bus errors 12, naks 0, contentions 0, other errors 0

[timschneider]

This post is deleted!

[timschneider]

@dc42 @chrishamm again with rc.1

M122
=== Diagnostics ===
RepRapFirmware for Duet 3 MB6HC version 3.6.0-rc.1 (2025-02-28 15:00:13) running on Duet 3 MB6HC v1.02 or 1.02a (SBC mode)
Board ID: 08DJM-9P63L-DJ3T8-6JKD4-3SJ6K-9A77A
Used output buffers: 1 of 40 (17 max)
Error in macro line 29 while starting up: M584: Driver 50.0 does not exist
Driver 51.0 does not exist

=== RTOS ===
Static ram: 137420
Dynamic ram: 98044 of which 3056 recycled
Never used RAM 105536, free system stack 180 words
Tasks: LASER(5,nWait 7,0.0%,269) SBC(2,nWait 7,0.9%,725) HEAT(3,nWait 6,0.0%,323) Move(4,nWait 6,0.0%,321) TMC(4,nWait 6,3.0%,375) CanReceiv(6,nWait 1,0.0%,814) CanSender(5,nWait 7,0.0%,334) CanClock(7,delaying,0.0%,353) MAIN(1,running,96.0%,101) IDLE(0,ready,0.1%,29) USBD(3,blocked,0.0%,144), total 100.0%
Owned mutexes: HTTP(MAIN)
=== Platform ===
Last reset 00:23:49 ago, cause: software
Last software reset at 2025-03-07 10:30, reason: WatchdogTimeout, Gcodes spinning, available RAM 88356, slot 1
Software reset code 0x00a3 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x1440e04f BFAR 0x00000000 SP 0x2045ffa8 Task MAIN Freestk 78286 ok
Stack: fff53239 0000fb30 0000fb30 0000fb30 fb25d7b2 00000000 0044b540 a1080027 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
=== Storage ===
Free file entries: 20
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 ===
Segments created 0, maxWait 0ms, bed comp in use: none, height map offset 0.000, hiccups added 0/0 (0.00/0.00ms), max steps late 0, ebfmin 0.00, ebfmax 0.00
Pos req/act/dcf: 0.00/0/0.00 0.00/0/0.00 0.00/0/0.00
Next step interrupt due in 76 ticks, disabled
Driver 0: standstill, SG min n/a, mspos 8, reads 40982, writes 11 timeouts 0
Driver 1: standstill, SG min n/a, mspos 8, reads 40982, writes 11 timeouts 0
Driver 2: standstill, SG min n/a, mspos 232, reads 40969, writes 24 timeouts 0
Driver 3: standstill, SG min n/a, mspos 888, reads 40970, writes 24 timeouts 0
Driver 4: standstill, SG min n/a, mspos 232, reads 40970, writes 24 timeouts 0
Driver 5: standstill, SG min n/a, mspos 52, reads 40972, writes 22 timeouts 0
Phase step loop runtime (us): min=0, max=18, frequency (Hz): min=1923, max=2083
=== Heat ===
Bed heaters 0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1, chamber heaters -1 -1 -1 -1 -1 -1 -1 -1, ordering errs 0
=== GCodes ===
Movement locks held by null, null
HTTP* is doing "M122" 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
LCD is idle in state(s) 0
SBC is idle in state(s) 0
Daemon* is idle in state(s) 0 0, running macro
Aux2 is idle in state(s) 0
Autopause is idle in state(s) 0
File2 is idle in state(s) 0
Queue2 is idle in state(s) 0
=== Filament sensors ===
Driver 31: pos 2200.08, errs: frame 10343 parity 0 ovrun 0 pol 0 ovdue 0
=== CAN ===
Messages queued 12474, received 22878, lost 0, ignored 0, errs 0, boc 0
Longest wait 246ms for reply type 6041, peak Tx sync delay 369, free buffers 50 (min 49), ts 6776/6775/0
Tx timeouts 0,0,0,0,0,0
=== SBC interface ===
Transfer state: 5, failed transfers: 0, checksum errors: 0
RX/TX seq numbers: 49541/55164
SPI underruns 0, overruns 0
State: 5, disconnects: 0, timeouts: 0 total, 0 by SBC, IAP RAM available 0x27a68
Buffer RX/TX: 0/0-0, open files: 0
=== Duet Control Server ===
Duet Control Server version 3.6.0-rc.1 (2025-03-03 12:11:46, 32-bit)
HTTP+Executed:
> Executing M122
Daemon+ProcessInternally:
>> Macro daemon.g: Executing var upTime = state.upTime
Daemon:
>> Doing macro daemon.g, started by system
Code buffer space: 4096
Configured SPI speed: 8000000Hz, TfrRdy pin glitches: 1
Full transfers per second: 38.74, max time between full transfers: 1520.4ms, max pin wait times: 966.8ms/15.1ms
Codes per second: 6.71
Maximum length of RX/TX data transfers: 4588/1612

journalctl

Mar 07 08:54:11 Meltingplot-MBL-480-vaswsq DuetControlServer[8378]: [info] Starting macro file 0:/sys/meltingplot/prime_nozzle_0 on channel File
Mar 07 08:54:47 Meltingplot-MBL-480-vaswsq DuetControlServer[8378]: [info] File: Finished macro file 0:/sys/meltingplot/prime_nozzle_0
Mar 07 08:54:48 Meltingplot-MBL-480-vaswsq DuetControlServer[8378]: [info] File: Finished macro file 0:/sys/meltingplot/print_start
Mar 07 10:30:32 Meltingplot-MBL-480-vaswsq DuetControlServer[8378]: [warn] Restarting full transfer because a bad header format code was received (0xff)
Mar 07 10:30:32 Meltingplot-MBL-480-vaswsq DuetControlServer[8378]: [warn] Lost connection to Duet (Timeout while waiting for transfer ready pin)
Mar 07 10:30:32 Meltingplot-MBL-480-vaswsq DuetControlServer[8378]: [info] Connection to Duet established
Mar 07 10:30:32 Meltingplot-MBL-480-vaswsq DuetControlServer[8378]: [error] Daemon: Failed to find corresponding state for code M220 S{50+25*global.mfmbackoff} ; increase speed in steps of 50 + 0*25, 1*25 2*25, cancelling it
Mar 07 10:30:32 Meltingplot-MBL-480-vaswsq DuetControlServer[8378]: [error] Daemon: Failed to find corresponding state for code set global.mfmbackoff = global.mfmbackoff + 1, cancelling it
Mar 07 10:30:32 Meltingplot-MBL-480-vaswsq DuetControlServer[8378]: [error] Daemon: Failed to find corresponding state for code set global.lastMFMBackoffCheck = var.upTime, cancelling it
Mar 07 10:30:32 Meltingplot-MBL-480-vaswsq DuetControlServer[8378]: [error] Daemon: Failed to find corresponding state for code var z_homed = move.axes[2].homed, cancelling it
Mar 07 10:30:32 Meltingplot-MBL-480-vaswsq DuetControlServer[8378]: [error] Daemon: Failed to find corresponding state for code var bed_aligned = global.bed_aligned, cancelling it
Mar 07 10:30:32 Meltingplot-MBL-480-vaswsq DuetControlServer[8378]: [error] Daemon: Failed to find corresponding state for code set global.bed_aligned_since = var.upTime, cancelling it
Mar 07 10:30:32 Meltingplot-MBL-480-vaswsq DuetControlServer[8378]: [warn] Daemon: Aborting orphaned macro file daemon.g
Mar 07 10:30:32 Meltingplot-MBL-480-vaswsq DuetControlServer[8378]: [info] Aborted macro file daemon.g
Mar 07 10:30:32 Meltingplot-MBL-480-vaswsq DuetControlServer[8378]: [error] in file daemon.g line 48: unexpected elif condition
Mar 07 10:30:32 Meltingplot-MBL-480-vaswsq DuetControlServer[8378]: [warn] SPI connection has been reset
Mar 07 10:30:32 Meltingplot-MBL-480-vaswsq DuetControlServer[8378]: [error] DuetAPI.CodeParserException: unexpected elif condition
Mar 07 10:30:32 Meltingplot-MBL-480-vaswsq DuetControlServer[8378]:    DuetAPI.CodeParserException: unexpected elif condition
Mar 07 10:30:32 Meltingplot-MBL-480-vaswsq DuetControlServer[8378]:    at DuetControlServer.Files.CodeFile.ReadCodeAsync(Code sharedCode) in /home/runner/work/DuetSoftwareFramework/DuetSoftwareFramework/src/DuetControlServer/Files/CodeFi
Mar 07 10:30:32 Meltingplot-MBL-480-vaswsq DuetControlServer[8378]:    at DuetControlServer.Files.MacroFile.ReadCodeAsync() in /home/runner/work/DuetSoftwareFramework/DuetSoftwareFramework/src/DuetControlServer/Files/MacroFile.cs:line 29
Mar 07 10:30:32 Meltingplot-MBL-480-vaswsq DuetControlServer[8378]:    at DuetControlServer.Files.MacroFile.Run() in /home/runner/work/DuetSoftwareFramework/DuetSoftwareFramework/src/DuetControlServer/Files/MacroFile.cs:line 353
Mar 07 10:30:32 Meltingplot-MBL-480-vaswsq DuetControlServer[8378]: [info] Aborted job file
Mar 07 10:30:32 Meltingplot-MBL-480-vaswsq DuetControlServer[8378]: [info] Starting macro file config.g on channel Trigger
Mar 07 10:30:38 Meltingplot-MBL-480-vaswsq DuetControlServer[8378]: [error] M584: Driver 50.0 does not exist
Mar 07 10:30:38 Meltingplot-MBL-480-vaswsq DuetControlServer[8378]: Driver 51.0 does not exist
Mar 07 10:30:38 Meltingplot-MBL-480-vaswsq DuetControlServer[8378]: [info] Starting macro file config-override.g on channel Trigger
Mar 07 10:30:38 Meltingplot-MBL-480-vaswsq DuetControlServer[8378]: [info] Trigger: Finished macro file config-override.g
Mar 07 10:30:38 Meltingplot-MBL-480-vaswsq DuetControlServer[8378]: [info] Event logging stopped

[chrishamm]

@timschneider Watchdog timeouts are a sign of ESD crashing the MCU. We have not had any other reports in that regard for a very long time.

[timschneider]

Moved the extruder reversing to a seperate thread!

https://forum.duet3d.com/topic/37655/3-6-0-rc-1-unexpected-extruder-reversing

@chrishamm

i made a video showing the suspect back emf generator - and maybe the cause of the esd events which may cause the mcu to reset.

You see that the printer is moving normal until 0:28 the first loud clong, and at 0:29/0:30 the second.
PA and IS are active.

Ill reprint this file with PA and IS disabled to check if the clong is caused by one of them.

2025-03-07-16-56-27-499(2).mp4

/Edit:
Ok, today I was listening for that sound, and I can also hear it on the Duet2 printer. It sounds like there is a move without acceleration.

/edit 2: checked it with PA and IS disabled - the movement stays the same, the extruder is reversing but there is not a single E- in the whole file. The printer uses firmware retraction, but the reversing is mid move - so not while retracting.

attached is the gcode file.
T013_ACM_Angle v1_L0.3mm_N0.8_NYLON_MBL480_2h12m.gcode
The clong sond is predominand at Z=3.8 the internal bridge infill layer.