ESP8266 Restart Sometimes

[laercionit]

Basic Infos

• [ X] This issue complies with the issue POLICY doc.
• [ X] I have read the documentation at readthedocs and the issue is not addressed there.
• I have tested that the issue is present in current master branch (aka latest git).
• [ X] I have searched the issue tracker for a similar issue.
• [ X] If there is a stack dump, I have decoded it.
• [ X] I have filled out all fields below.

Platform

• Hardware: [ESP-12]
• Core Version: [2.7.4]
• Development Env:[Arduino IDE]
• Operating System: [Windows]

Settings in IDE

• Module: [Nodemcu 1.0]
• Flash Mode: [qio|dio|other]
• Flash Size: [4MB]
• lwip Variant: [v2 Lower Memory]
• Reset Method: [nodemcu]
• Flash Frequency: [40Mhz]
• CPU Frequency: [80Mhz|]
• Upload Using: [SERIAL]
• Upload Speed: [115200]

Problem Description

My project has been running for a long time, it has MQTT, WEBServer and Wifi Client. I've been investigating the reason for restarting at random for a long time. Works without restarting for weeks and restarts. I believe it is something related to a momentary internet or wifi failure. I made all possible code dealings but I did not identify the problem.

The code hasn't changed, I just update the CORE, unfortunately because it's something I can't reproduce, I can't specify exactly which CORE the problem occurs in.

In the investigation I saw that it generates the problem in the line below:
#ifdef GXX_EXPERIMENTAL_CXX0X
void String :: move (String & rhs) {
if (buffer ()) {
if (capacity ()> = rhs.len ()) {
memmove_P (wbuffer (), rhs.buffer (), rhs.length () + 1);
setLen (rhs.len ());
rhs.invalidate ();
return;
} else {
if (! isSSO ()) {
free (wbuffer ());
setBuffer (nullptr);
}
}
}
if (rhs.isSSO ()) {
setSSO (true);
memmove_P (sso.buff, rhs.sso.buff, sizeof (sso.buff));
} else {
setSSO (false);
setBuffer (rhs.wbuffer ());
}
setCapacity (rhs.capacity ());
setLen (rhs.len ());
rhs.setSSO (false);
rhs.setCapacity (0);
rhs.setLen (0);
rhs.setBuffer (nullptr);
}
#endif

Debug Messages

--------------- CUT HERE FOR EXCEPTION DECODER ---------------

Exception (9):
epc1=0x4023a974 epc2=0x00000000 epc3=0x00000000 excvaddr=0x00000526 depc=0x00000000

stack>>>

ctx: cont
sp: 3ffffcd0 end: 3fffffc0 offset: 0190
3ffffe60: 3fff3704 3fff3704 3fffff50 40236644
3ffffe70: 3fff0696 00000000 3ffffea0 4022c388
3ffffe80: 3fff3704 00000000 3ffffea0 4022d264
3ffffe90: 3fff0696 00000000 000001f4 40211ad8
3ffffea0: 00000000 00000000 3fff36a4 3fff36cc
3ffffeb0: 0017001f 00000001 3f010050 40001388
3ffffec0: 6765722f 65747369 8a002f72 70747468
3ffffed0: 00000000 84000000 3fff3bcc 0000016f
3ffffee0: 00000004 3fff2464 0011001f 00000004
3ffffef0: 00000000 4bc6a7f0 8074bc6a 00000000
3fffff00: 00000000 000001f4 00000000 00000000
3fffff10: 00000000 f0f4000a 40100500 000cc5b7
3fffff20: 80000000 00000000 3fff36f4 3fff3600
3fffff30: 0024002f 80000044 31313600 38333338
3fffff40: 80003230 00000000 0112ea94 402377da
3fffff50: 00000000 00000000 8012ea94 40206bd3
3fffff60: 00000000 3fff07a8 00000000 40211bdc
3fffff70: 00000000 3fff07a8 3fff07a8 40211cd5
3fffff80: 3fffdad0 00000000 3fff0588 3fff0bd8
3fffff90: 3fffdad0 00000000 3fff0b98 402281a5
3fffffa0: feefeffe feefeffe feefeffe 402378bc
3fffffb0: feefeffe feefeffe 3ffe96c8 4010118d
<<<stack<<<

--------------- CUT HERE FOR EXCEPTION DECODER ---------------

Decoding 13 results
0x40236644: String::move(String&) at D:\SETUP\Programas\Desenvolvimento\ArduinoDesenv\portable\packages\esp8266\hardware\esp8266\2.7.4\cores\esp8266/WString.cpp line 230
0x4022c388: HTTPClient::disconnect(bool) at D:\SETUP\Programas\Desenvolvimento\ArduinoDesenv\portable\packages\esp8266\hardware\esp8266\2.7.4\libraries\ESP8266HTTPClient\src/ESP8266HTTPClient.cpp line 434
0x4022d264: HTTPClient::handleHeaderResponse() at D:\SETUP\Programas\Desenvolvimento\ArduinoDesenv\portable\packages\esp8266\hardware\esp8266\2.7.4\libraries\ESP8266HTTPClient\src/ESP8266HTTPClient.cpp line 1376
0x40211ad8: _Z14SystemRegisterb$part$305 at C:\Users\Laercio\AppData\Local\Temp\arduino_build_914177\sketch/System.h line 607
0x40100500: millis at D:\SETUP\Programas\Desenvolvimento\ArduinoDesenv\portable\packages\esp8266\hardware\esp8266\2.7.4\cores\esp8266/core_esp8266_wiring.cpp line 182
0x402377da: eboot_command_write at D:\SETUP\Programas\Desenvolvimento\ArduinoDesenv\portable\packages\esp8266\hardware\esp8266\2.7.4\cores\esp8266/core_esp8266_eboot_command.cpp line 59
0x40206bd3: Waiting(unsigned int) at C:\Users\Laercio\AppData\Local\Temp\arduino_build_914177\sketch/RTC.h line 33
0x40211bdc: SystemInit(bool) at C:\Users\Laercio\AppData\Local\Temp\arduino_build_914177\sketch/System.h line 625
0x40211cd5: SystemMonitor(bool) at C:\Users\Laercio\AppData\Local\Temp\arduino_build_914177\sketch/System.h line 652
0x402281a5: loop at D:\Save\Aquarino\Projects\Aquarino-ControllerBeta/Aquarino-ControllerBeta.ino line 98
0x402378bc: esp_yield at D:\SETUP\Programas\Desenvolvimento\ArduinoDesenv\portable\packages\esp8266\hardware\esp8266\2.7.4\cores\esp8266/core_esp8266_main.cpp line 119
0x4010118d: cont_wrapper at D:\SETUP\Programas\Desenvolvimento\ArduinoDesenv\portable\packages\esp8266\hardware\esp8266\2.7.4\cores\esp8266/cont.S line 81

[earlephilhower]

You need to paste in the entire crash dump to be useful. Everything between the "----"s including the "...EPC1 xxxxx..." line is needed. Without that, you just have a list of prior calls and not exactly where it crashed.

Also, without an MCVE, there's really not much that can be done even with the full PC decode.

[laercionit]

@earlephilhower

I just put what you requested. Thank you and I'm sorry I did it wrong.

[earlephilhower]

Actually, we can't use the raw bytes you just added. CAn you paste that into the exception decoder and update the output? It will have a "PC: xxxx " line which will be the exact spot where a problem happened and a text description of the exception. One more try, please!

[laercionit]

Exception 9: LoadStoreAlignmentCause: Load or store to an unaligned address
Decoding 14 results
0x4023a974: WiFiClient::operator bool() at D:\SETUP\Programas\Desenvolvimento\ArduinoDesenv\portable\packages\esp8266\hardware\esp8266\2.7.4\libraries\ESP8266WiFi\src/WiFiClient.cpp line 349
0x40236644: String::move(String&) at D:\SETUP\Programas\Desenvolvimento\ArduinoDesenv\portable\packages\esp8266\hardware\esp8266\2.7.4\cores\esp8266/WString.cpp line 230
0x4022c388: HTTPClient::disconnect(bool) at D:\SETUP\Programas\Desenvolvimento\ArduinoDesenv\portable\packages\esp8266\hardware\esp8266\2.7.4\libraries\ESP8266HTTPClient\src/ESP8266HTTPClient.cpp line 434
0x4022d264: HTTPClient::handleHeaderResponse() at D:\SETUP\Programas\Desenvolvimento\ArduinoDesenv\portable\packages\esp8266\hardware\esp8266\2.7.4\libraries\ESP8266HTTPClient\src/ESP8266HTTPClient.cpp line 1376
0x40211ad8: _Z14SystemRegisterb$part$305 at C:\Users\Laercio\AppData\Local\Temp\arduino_build_149574\sketch/System.h line 607
0x40100500: millis at D:\SETUP\Programas\Desenvolvimento\ArduinoDesenv\portable\packages\esp8266\hardware\esp8266\2.7.4\cores\esp8266/core_esp8266_wiring.cpp line 182
0x402377da: eboot_command_write at D:\SETUP\Programas\Desenvolvimento\ArduinoDesenv\portable\packages\esp8266\hardware\esp8266\2.7.4\cores\esp8266/core_esp8266_eboot_command.cpp line 59
0x40206bd3: Waiting(unsigned int) at C:\Users\Laercio\AppData\Local\Temp\arduino_build_149574\sketch/RTC.h line 33
0x40211bdc: SystemInit(bool) at C:\Users\Laercio\AppData\Local\Temp\arduino_build_149574\sketch/System.h line 625
0x40211cd5: SystemMonitor(bool) at C:\Users\Laercio\AppData\Local\Temp\arduino_build_149574\sketch/System.h line 652
0x402281a5: loop at D:\Save\Aquarino\Projects\Aquarino-ControllerBeta/Aquarino-ControllerBeta.ino line 98
0x402378bc: esp_yield at D:\SETUP\Programas\Desenvolvimento\ArduinoDesenv\portable\packages\esp8266\hardware\esp8266\2.7.4\cores\esp8266/core_esp8266_main.cpp line 119
0x4010118d: cont_wrapper at D:\SETUP\Programas\Desenvolvimento\ArduinoDesenv\portable\packages\esp8266\hardware\esp8266\2.7.4\cores\esp8266/cont.S line 81

[laercionit]

void SystemRegister(bool Boot = false) {
  Waiting();
  if (NetworkInternetStatus) {
    HTTPClient http;
    http.setTimeout(NetworkTimeout);
    http.begin (SystemRegisterURL);
    if (String(System.UserEmail) != "") http.addHeader(F("X_EMAIL"), System.UserEmail);
    http.addHeader( F("X_UUID"),           System.UUID     );
    http.addHeader( F("X_CHIP"),           System.Chip     );
    http.addHeader( F("X_HEAP"),    String(SystemGetFreeMemory()));
    http.addHeader( F("X_VERSION"),        SystemGetFullVersion());
    http.addHeader( F("X_HOSTNAME"),       System.Hostname );
    http.addHeader( F("X_FIRMWARE"), String(System.Firmware));
    http.addHeader( F("X_MANAGER"), String(System.Manager) );
    http.addHeader( F("X_LAN"),            NetworkGetIP()  );
    http.addHeader( F("X_STARTED"), String(System.Started) );
    int httpCode = http.POST(System.UUID);
    String ServerResponseBody;
    if (httpCode > 0) ServerResponseBody = http.getString();
    else              ServerResponseBody = http.errorToString(httpCode);
    http.end();
#ifdef SYSTEMDEBUG
    snprintf_P(Buffer, sizeof(Buffer), LangWebClientRequest, SystemRegisterURL, httpCode, ServerResponseBody.c_str());
    DebugSerial.println(Buffer);
#endif
    if ((httpCode > 0) && (Boot))  {
      if (httpCode == 200) { //Licensed
        SystemSetRegistered(true); SystemSetLicensed(true);
      } else if (httpCode == 201) { //Create
        SystemSetRegistered(true); SystemSetLicensed(false);
      } else if (httpCode == 202) { //Accept
        SystemSetRegistered(true); SystemSetLicensed(false);
      } else if (httpCode == 401) { //Unauthorized
        SystemSetRegistered(false); SystemSetLicensed(false);
      } else if (httpCode == 409) { //Conflict
        SystemSetRegistered(true); SystemSetLicensed(false);
      } else {
        LogSaveRecord (ServerResponseBody);
        if (Alert[AlertErrors].Status) EmailSend(Alert[AlertErrors].Name, FPSTR(LangEmailErrors), ServerResponseBody);
      }
    }
  }
}```

[laercionit]

[d-a-v]

Try this:

    WiFiClient client; // <== added, before http
    HTTPClient http;
    http.setTimeout(NetworkTimeout);
    http.begin (client, SystemRegisterURL); // <== updated
    ...

[laercionit]

@d-a-v

can I use the Wi-Fi Client that is instantiated for use in mqtt instead of instantiating a new one in the method?

[d-a-v]

can I use the Wi-Fi Client that is instantiated for use in mqtt instead of instantiating a new one in the method?

No. A WiFiClient matches with a connection. One would close the other.
If you need both connection at the same time, then you need two WiFiClient.

[laercionit]

@d-a-v
OK, I made the code change and I'll leave it running to see if it will resolve. Thanks for trying to help. I will inform you if it is stable or if the problem still persists.

[laercionit]

@d-a-v
@earlephilhower
Following the uptime, so far this is ok, but I wanted to understand what really changed in instantiating the WIFI Client before the HTTP Client could result in the request failing.

[d-a-v]

what really changed in instantiating the WIFI Client before the HTTP Client could result in the request failing.

Functionally speaking, that's hard to say.
That is anyway a deprecated way of using it in v2.7.4, and it is now removed in the soon-to-come v3 core. So it's better for your application to use the new API.
This parameter appeared in #4980, originally to nearly-transparently allow to switch to TLS where WiFiClient is used. If I remember well, management of the internal WiFiClient that needed to be created when using the old API was a bit complex and this complexity is removed with the new API.

[laercionit]

Hello guys, just to inform you that the requested change worked. Thank you very much!!!!