Arduino-esp32: Latest pull causing core panic and stackoverflows

Created on 24 Jan 2018 · 13Comments · Source: espressif/arduino-esp32

Hardware:

Board: ?ESP32 Dev Module?
Core Installation/update date: ?11/jul/2017?
IDE name: ?Arduino IDE?
Flash Frequency: ?40Mhz?
Upload Speed: ?115200?

Description:

commit 7fa8cafb27a1e28e3da74c5d44d4b0c50a252f05
After pulling, my previously working code completly crashed out.
I get core panics and I get some StackOverflow errors which my system didn't have before.

Note to the traceback, I am not named Users/ficeto , i have no idea where that comes from.

One of the few errors:
ERROR A stack overflow in task loopTask has been detected.

abort() was called at PC 0x40088034 on core 1

Backtrace:

 0x40087f1c:0x3ffcd3e0 0x4008801b:0x3ffcd400 0x40088034:0x3ffcd420 
0x40085823:0x3ffcd440 0x40086d78:0x3ffcd460 0x40086d2e:0x00000000

Decoded:

0x40088034:
 vApplicationStackOverflowHook at 
/Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/esp32/./panic.c
 line 578
0x40087f1c: invoke_abort at /Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/esp32/./panic.c line 578
0x4008801b: abort at /Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/esp32/./panic.c line 578
0x40088034:
 vApplicationStackOverflowHook at 
/Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/esp32/./panic.c
 line 578
0x40085823: vTaskSwitchContext at /Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/freertos/./tasks.c line 4571
0x40086d78: _frxt_dispatch at /Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/freertos/./portasm.S line 406
0x40086d2e: _frxt_int_exit at /Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/freertos/./portasm.S line 206

//I think part of the issue is caused by creating a server or socket task, but I am not sure. This is by far not the full code but i suspect the error to be somewhere caused here, but if this is compiled and used by itself without anything around it it works fine.
WiFiServer server(TCP_PORT);
  WebSocketServer webSocketServer;

  server.begin();


state_Machine.debugprintln("loop to determin networkk ssid and password");
  while(!network._know_ssid_pw){
    /* listen for client */
    WiFiClient client = server.available();
    uint8_t data[DATA_TRANSFER_BUFFER];
    if (client) {
      Serial.println("\n new client");

      //timeout_start=millis();
      while (client.connected()) {
        if (client.available()) {
         // timeout_start=millis();
          int len = client.read(data, DATA_TRANSFER_BUFFER);
          if (len < TCP_IN_BUFFER_ESSENTIALS) {
            data[len] = '\0';
          } else {
            data[DATA_TRANSFER_BUFFER] = '\0';
          }
          bool x=handle_info(String((char*)data));
          Serial.println("handled received");
          if(x)
          break;
        }
      }
      Serial.println("Client disconnected\n");
      client.stop();
    }


  }
  server.end();

Debug Messages:

[D][WiFiGeneric.cpp:293] _eventCallback(): Event: 2 - STA_START
[D][WiFiGeneric.cpp:293] _eventCallback(): Event: 1 - SCAN_DONE
[D][WiFiGeneric.cpp:293] _eventCallback(): Event: 3 - STA_STOP
[D][WiFiGeneric.cpp:293] _eventCallback(): Event: 3 - STA_STOP
[D][WiFiGeneric.cpp:293] _eventCallback(): Event: 2 - STA_START
[D][WiFiGeneric.cpp:293] _eventCallback(): Event: 4 - STA_CONNECTED
[D][WiFiGeneric.cpp:293] _eventCallback(): Event: 7 - STA_GOT_IP
CORRUPT HEAP: multi_heap.c:370 detected at 0x3ffcd550
abort() was called at PC 0x400876c3 on core 1

Backtrace: 0x40087f1c:0x3ffcd480 0x4008801b:0x3ffcd4a0 0x400876c3:0x3ffcd4c0 0x40087c02:0x3ffcd4e0 0x40083c80:0x3ffcd500 0x40083cb1:0x3ffcd520 0x400842e9:0x3ffcd540 0x4000beaf:0x3ffcd560 0x40084d9a:0x3ffcd580 0x401014a9:0x3ffcd5a0 0x40102cf4:0x3ffcd5c0 0x40101b44:0x3ffcd5e0 0x400f0cf1:0x3ffcd620 0x400d39ae:0x3ffcd640 0x400d2832:0x3ffcd680 0x400d1a4f:0x3ffd11c0 0x400d1a6b:0x3ffd11e0 0x401183e4:0x3ffd1200

Rebooting...
⸮⸮
`
⸮HJJH⸮ !⸮!B

bug stale

Source

ZweiEuro

Most helpful comment

Bumping up this thread to see if there are any updates. Facing the same error sometime after connecting to WiFi.

tsathishkumar on 4 Jul 2018

👍2

All 13 comments

After looking into it further, I found out after the connection worked (with WiFi.begin(ssid,pw); and WiFi.status(); responds WL_CONNECTED if i just put a delay after it delay(5000); it dies and returns errors:
Stackoverflowerror:

***ERROR*** A stack overflow in task loopTask has been detected.
abort() was called at PC 0x40088034 on core 1

Backtrace: 0x40087f1c:0x3ffcd4d0 0x4008801b:0x3ffcd4f0 0x40088034:0x3ffcd510 0x40085823:0x3ffcd530 0x40086d78:0x3ffcd550 0x40086d2e:0x3ffcd560

Rebooting...

DECODED:


Decoding 7 results
0x40088034: vApplicationStackOverflowHook at /Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/esp32/./panic.c line 578
0x40087f1c: invoke_abort at /Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/esp32/./panic.c line 578
0x4008801b: abort at /Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/esp32/./panic.c line 578
0x40088034: vApplicationStackOverflowHook at /Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/esp32/./panic.c line 578
0x40085823: vTaskSwitchContext at /Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/freertos/./tasks.c line 4571
0x40086d78: _frxt_dispatch at /Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/freertos/./portasm.S line 406
0x40086d2e: _frxt_int_exit at /Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/freertos/./portasm.S line 206

ZweiEuro on 24 Jan 2018

Another error that occurs:

Guru Meditation Error: Core  0 panic'ed (Interrupt wdt timeout on CPU1)
Register dump:
PC      : 0x400de4ca  PS      : 0x00060d34  A0      : 0x8008610c  A1      : 0x3ffcd8c0  
A2      : 0x00000008  A3      : 0x00000000  A4      : 0x00000001  A5      : 0x3ffcdf00  
A6      : 0x00000000  A7      : 0x00000001  A8      : 0x3ffc3e6c  A9      : 0x3ffc3e50  
A10     : 0x00000000  A11     : 0x00000001  A12     : 0x00000000  A13     : 0x00000001  
A14     : 0x00060021  A15     : 0x00060023  SAR     : 0x00000000  EXCCAUSE: 0x00000006  
EXCVADDR: 0x00000000  LBEG    : 0x00000000  LEND    : 0x00000000  LCOUNT  : 0x00000000  

Backtrace: 0x400de4ca:0x3ffcd8c0 0x40086109:0x3ffcd8e0

Rebooting...

DECODED:



Decoding 3 results
0x400de4ca: esp_vApplicationIdleHook at /Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/esp32/./freertos_hooks.c line 85
0x400de4ca: esp_vApplicationIdleHook at /Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/esp32/./freertos_hooks.c line 85
0x40086109: prvIdleTask at /Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/freertos/./tasks.c line 4571

This is caused by my state machine ( that I built around the programme) switches out of the state which connects the wifi, into the next one. for some reason, this is only the case with a few states and not others, but there is no difference between them. Since there was no error here before I can't find any here either.
Were any changes made that could effect these systems?

ZweiEuro on 24 Jan 2018

Noticed that as well.
I reverted back to 70d0d4648766cea047613062ed50a9ecfc9de31f and can work again.

Also, the current master 7fa8caf reported a v3.0-dev-xxxx-xxxxxxxxx-dirty version number in the ESP.getSdkVersion() call.

CelliesProjects on 24 Jan 2018

Thanks for the reply ! i will revert back to the library and try my code again to see if the bug persists.

ZweiEuro on 24 Jan 2018

I think i've found the error.
previously

client.read(BUFFER,BUFFER_SIZE);

has worked, it pulled all available data on the client ( if one was connected) into the buffer.

I am getting all kinds of issues with all
wifi.peek
wifi.available
wifi.read(buffer,length);

but mainly core panics and core crashes, all of them errors i dind't have before the latest update, but after reverting the changes they are still there ? i am not sure why, maybe i am viewing a different commit incorrectly.

ZweiEuro on 26 Jan 2018

What does ESP.getSdkVersion()report?

CelliesProjects on 26 Jan 2018

I am affected, too: https://github.com/hitokuno/ESP32-SensorTag/issues/1

probonopd on 12 Feb 2018

Same here

copercini on 7 Mar 2018

Me too, in a Wifi conn with GATT_SCAN.
Some news?
Regards!

perll on 31 Mar 2018

This week I completely uninstalled and deleted the complete Arduino IDE plus all ESP32 related stuff (including libs) and started fresh.

Downloaded/installed Arduino IDE 1.8.5.
Cloned a fresh ESP32 Arduino core @ commit 3a4ec66d41615cbb1c3e830cb6e761cdc4cca9d3 (latest commit as I post this)
Followed the install instructions again.
Updated all the libraries I use to their latest release.

It solved all of the weird error messages I was getting lately.

Did it again on my laptop and it also is now compiling as expected.
A bit of work/time, but am I coding more confident and happy as the weird errors have disappeared.
YMMV.

CelliesProjects on 31 Mar 2018

Bumping up this thread to see if there are any updates. Facing the same error sometime after connecting to WiFi.

tsathishkumar on 4 Jul 2018

👍2

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.