[Ovmsdev] Repeated WDT crashes after upgrade to 3.3 with 4G

[Stephen Casner]

I installed version 3.3.001-285 from edge on my OVMS v3.1 unit before
replacing the 3G modem with a 4G modem.  Upon rebooting with the unit
still on the bench I noticed that the unit was crashing every three
minutes with a watchdog timeout:

I (112275) gsm-mux: Start MUX
I (112285) gsm-mux: Channel #0 is open
I (112295) gsm-mux: Channel #1 is open
I (112305) gsm-mux: Channel #2 is open
I (112315) gsm-mux: Channel #3 is open
I (112325) gsm-mux: Channel #4 is open
I (113265) cellular: State: Enter NetWait state
I (122265) housekeeping: System considered stable (RAM: 8b=81540-82392 32b=12344 SPI=3454300-3456824)
I (122505) webserver: HTTP GET /
I (122535) webserver: HTTP GET /apple-touch-icon.png
I (122555) webserver: HTTP GET /status
I (123265) ovms-server-v2: Send MP-0 h1,0,*-OVM-DebugCrash,0,2592000,3.3.001-285-g601f2a70/ota_1/edge (build idf v3.3.4-848-g1ff5e24b1 Feb 20 2022 00:04:30),2,Crash,12,12,2,0,abort(),0,,0x4008ddca 0x4008e065 0x400e9608 0x40084176 ,6,Task watchdog,ticker.1,esp32wifi,0,IDLE0,OVMS WIFI BLE BT cores=2 rev=ESP32/1; MODEM SIM7600
I (123295) cellular: Network Registration status: RegisteredRoaming
I (123295) cellular: Network Provider is: AT&T Hologram
I (123595) ovms-server-v2: Incoming Msg: MP-0 h1
I (124265) cellular: State: Enter NetStart state
I (129845) webserver: HTTP POST /status
I (129845) webserver: HandleLogin: 'admin' logged in, sid c3bb26091e718ad
I (129875) webserver: HTTP GET /status
I (130035) webserver: HTTP GET /menu
W (178175) websocket: WebSocketHandler[0x3f8b19f0]: job queue overflow detected
OVMS> E (185265) task_wdt: Task watchdog got triggered. The following tasks did not reset the watchdog in time:
E (185265) task_wdt:  - IDLE0 (CPU 0)
E (185265) task_wdt: Tasks currently running:
E (185265) task_wdt: CPU 0: Tmr Svc
E (185265) task_wdt: CPU 1: IDLE1
E (185265) task_wdt: Aborting.
abort() was called at PC 0x400e9608 on core 0

ELF file SHA256: 2d4b51699f53abce

Backtrace: 0x4008ddca:0x3ffb0aa0 0x4008e065:0x3ffb0ac0 0x400e9608:0x3ffb0ae0 0x40084176:0x3ffb0b00

Rebooting...

I was hoping that when I put the module back into the car with all the
right inputs on its data cable that this problem would not continue,
but sad to say the crashes remain the same.  I have not heard about
this issue for others who have upgraded to 3.3 and 4G.  Any
suggestions?

Here are a couple of examples of the boot status:

auge1> ssh ovms

Welcome to the Open Vehicle Monitoring System (OVMS) - SSH Console
Firmware: 3.3.001-285-g601f2a70/ota_1/edge
Hardware: OVMS WIFI BLE BT cores=2 rev=ESP32/1; MODEM SIM7600

OVMS# boot
Last boot was 152 second(s) ago
Time at boot: 2022-03-02 14:29:11 PST
  This is reset #1 since last power cycle
  Detected boot reason: EarlyCrash (12/12)
  Reset reason: Task watchdog (6)
  Crash counters: 1 total, 1 early

Last crash: abort() was called on core 0
  Backtrace:
  0x4008ddca 0x4008e065 0x400e9608 0x40084176
  Event: ticker.1 at esp32wifi 0 secs
  WDT tasks: IDLE0
  Version: 3.3.001-285-g601f2a70/ota_1/edge (build idf v3.3.4-848-g1ff5e24b1 Feb 20 2022 00:04:30)

  Hardware: OVMS WIFI BLE BT cores=2 rev=ESP32/1; MODEM SIM7600
OVMS# packet_write_wait: Connection to 192.168.1.74 port 22: Broken pipe
auge2> ssh ovms

Welcome to the Open Vehicle Monitoring System (OVMS) - SSH Console
Firmware: 3.3.001-285-g601f2a70/ota_1/edge
Hardware: OVMS WIFI BLE BT cores=2 rev=ESP32/1

OVMS# boot
Last boot was 76 second(s) ago
Time at boot: 2022-03-02 14:32:18 PST
  This is reset #2 since last power cycle
  Detected boot reason: Crash (12/12)
  Reset reason: Task watchdog (6)
  Crash counters: 2 total, 0 early

Last crash: abort() was called on core 0
  Backtrace:
  0x4008ddca 0x4008e065 0x400e9608 0x40084176
  Event: ticker.1 at esp32wifi 0 secs
  WDT tasks: IDLE0
  Version: 3.3.001-285-g601f2a70/ota_1/edge (build idf v3.3.4-848-g1ff5e24b1 Feb 20 2022 00:04:30)

  Hardware: OVMS WIFI BLE BT cores=2 rev=ESP32/1
OVMS#
OVMS# packet_write_wait: Connection to 192.168.1.74 port 22: Broken pipe

                                                        -- Steve