Code run _thread.start_new_thread, that includes AWS MQTT causes guru meditation
timh last edited by
I have FiPy/GPY running with LTE-CAT-M1 or Wifi connections for a while.
I wanted to look at including pybytes.
However I find that if I run my code inside a new thread.
LTE and WLAN can be setup in this thread, however as soon as I try to create an MQTT connection using the underlying AWS library I get a guru meditation error.
Connected <WLAN> WDT enabled Connecting to mqtt Guru Meditation Error: Core 0 panic'ed (LoadProhibited) . Exception was unhandled. Register dump: PC : 0x4008aa9d PS : 0x00060033 A0 : 0x4008c117 A1 : 0x3ffd54f0 A2 : 0x3ffc513c A3 : 0x00050023 A4 : 0x3ffc4fb4 A5 : 0x00000000 A6 : 0x00000000 A7 : 0x00000000 A8 : 0x00000002 A9 : 0x3ffc4fac A10 : 0x00000000 A11 : 0x00000001 A12 : 0x3ffb7cdc A13 : 0x00000000 A14 : 0x00000005 A15 : 0x7fffffff SAR : 0x0000001f EXCCAUSE: 0x0000001c EXCVADDR: 0x0000000c LBEG : 0x400e67e4 LEND : 0x400e6820 LCOUNT : 0x00000000 Backtrace: 0x4008aa9d:0x3ffd54f0 0x4008c114:0x3ffd5520 0x4008c0ca:0x3ffc5ca0
The AWS mqtt library creates it's own threads to handle connection and inbound messages.
Not sure if this is a restriction of the platform or my approach.
james last edited by james
I have the same problem using this library or simple mqtt in another thread with version (1.18/1.19 Pybytes)
rst:0x7 (TG0WDT_SYS_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT) configsip: 0, SPIWP:0xee clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00 mode:DIO, clock div:1 load:0x3fff8028,len:8 load:0x3fff8030,len:1984 load:0x4009fa00,len:0 load:0x4009fa00,len:19112 entry 0x400a05e4 Initializing filesystem as FatFS! Guru Meditation Error: Core 0 panic'ed (Cache disabled but cached memory region accessed) Core 0 register dump: PC : 0x401f27e8 PS : 0x00060c34 A0 : 0x8005582c A1 : 0x3ffc0970 A2 : 0x00000000 A3 : 0x00000001 A4 : 0x800995d1 A5 : 0x3ffea5f0 A6 : 0x0000b030 A7 : 0x3ffea6a4 A8 : 0x8008cc86 A9 : 0x01000000 A10 : 0x07040000 A11 : 0x00000000 A12 : 0x00000013 A13 : 0x00000000 A14 : 0x3ffae270 A15 : 0x00000000 SAR : 0x0000000e EXCCAUSE: 0x00000007 EXCVADDR: 0x00000000 LBEG : 0x40099276 LEND : 0x40099285 LCOUNT : 0x00000000 Core 0 was running in ISR context: EPC1 : 0x40092e5f EPC2 : 0x00000000 EPC3 : 0x00000000 EPC4 : 0x401f27e8
with the old version (1.17.3.b1 or 1.18.0) the error was different but there was.
Connecting to MQTT broker.... 1 2 3 4 ***ERROR*** A stack overflow in task MPThread has been detected. abort() was called at PC 0x4008e66c on core 1
the mqtt library is:
after updating to the 1.18.0 or 1.19.4.b4 to try to understand if the problem related to the threads and mqtt had been solved I had another problem, I can not load some files ...
example of what happens that did not happen before; I added the size of the files in which I have problems
Reading file status Failed to read project status, uploading all files Creating dir lib Creating dir www Creating dir www/bootstrap Creating dir www/bootstrap/css Creating dir www/bootstrap/fonts Creating dir www/bootstrap/js Creating dir www/js [1/18] Writing file SI7006A20.py [2/18] Writing file boot.py [3/18] Writing file hal.py [4/18] Writing file lib/mqttserver.pub.pem [5/18] Writing file main.py [6/18] Writing file mqtt.py [7/18] Writing file umqtt.py [8/18] Writing file www/bootstrap/css/bootstrap.min.css "filesize (121.3kb)" Failed to write file, trying again... Failed to write file, trying again... Filecheck failed [9/18] Writing file www/bootstrap/js/bootstrap.min.js "filesize (36.9kb)" Failed to write file, trying again... [10/18] Writing file www/index.html [11/18] Writing file www/js/angular.min.js "filesize (99.0kb)" Failed to write file, trying again... Failed to write file, trying again... Filecheck failed [12/18] Writing file www/js/app.js [13/18] Writing file www/js/jquery-1.11.1.js "filesize (282.8kb)" Failed to write file, trying again... Failed to write file, trying again... Filecheck failed [14/18] Writing file xApp.py Failed to write file, trying again... [15/18] Writing file xConfigureFile.py [16/18] Writing file xHTTPConfigure.py [17/18] Writing file xWebServer.py [18/18] Writing file xWebSocket.py
waiting for a quick reply