error Exception (3) on ESP8266 with version 2.0.17 and not 2.0.16

[PhDSM]

Basic Infos

Hardware

WiFimanager Branch/Release: Master

Esp8266/Esp32:

Hardware: ESP8266 D1 Mini Board

Core Version: 2.4.0, staging

Description

error Exception (3) occurs when calling AP webpage, even with code example basic.ino on version 2.0.17.
However it works ok with version 2.0.16-rc 2

Settings in IDE

Module: Generic ESP8266 Module

Additional libraries:

Sketch

see basic.ino in your examples folder

### Debug Messages

11:10:14.771 -> *wm:resetSettings 
11:10:15.377 -> *wm:SETTINGS ERASED 
11:10:15.377 -> *wm:AutoConnect 
11:10:15.377 -> *wm:No wifi saved, skipping 
11:10:15.377 -> *wm:AutoConnect: FAILED for  2 ms
11:10:15.377 -> *wm:StartAP with SSID:  ESPWIFIMNGR
11:10:16.410 -> *wm:AP IP address: 192.168.4.1
11:10:16.410 -> *wm:Starting Web Portal 
11:10:48.824 -> 
11:10:48.824 -> Exception (3):
11:10:48.824 -> epc1=0x4000bf64 epc2=0x00000000 epc3=0x00000000 excvaddr=0x402485fd depc=0x00000000
11:10:48.859 -> 
11:10:48.859 -> >>>stack>>>
11:10:48.859 -> 
11:10:48.859 -> ctx: cont
11:10:48.859 -> sp: 3ffff930 end: 3fffffc0 offset: 01a0
11:10:48.859 -> 3ffffad0:  4024856b 3ffffb20 3ffffd60 40201878  
11:10:48.859 -> 3ffffae0:  6f666e00 3ffffe00 80fffb5c 4020e656  
11:10:48.859 -> 3ffffaf0:  3ffefd59 00000000 80fffb50 4020e480  
11:10:48.860 -> 3ffffb00:  3ffffdf0 00000148 3ffffd60 40203cec  
11:10:48.860 -> 3ffffb10:  00000000 3ffffe60 3ffffd60 40209010  
11:10:48.860 -> 3ffffb20:  3fff04cc 0098009f 00000020 401009cb  
11:10:48.889 -> 3ffffb30:  3fff0824 3ffef958 402014a8 00000001  
11:10:48.889 -> 3ffffb40:  3ffef9e4 3ffef958 3ffffbdc 4020dee9  
11:10:48.889 -> 3ffffb50:  3fff03ac 0028002f 00fef934 3fff084c  
11:10:48.889 -> 3ffffb60:  0e350e3f 00000001 3ffffbb0 00000001  
11:10:48.889 -> 3ffffb70:  3ffffbb0 3ffefa44 00000000 40203cec  
11:10:48.889 -> 3ffffb80:  00000001 00000001 3ffefa1c 40210b27  
11:10:48.889 -> 3ffffb90:  00000001 40201148 3ffefa1c 401000e1  
11:10:48.921 -> 3ffffba0:  3ffefa1c 3ffef974 3ffefa1c 40203d22  
11:10:48.921 -> 3ffffbb0:  3ffe0000 80ffc6fc 80000000 3ffffd60  
11:10:48.921 -> 3ffffbc0:  3ffefa1c 3ffef974 3ffef934 4020928a  
11:10:48.921 -> 3ffffbd0:  0054002f 00000000 81c6a7f0 3fff0800  
11:10:48.921 -> 3ffffbe0:  0000007f 80005054 40100200 00008562  
11:10:48.921 -> 3ffffbf0:  00000001 3ffef974 d9999999 00000000  
11:10:48.921 -> 3ffffc00:  00000001 00000000 4bc6a7f0 00000000  
11:10:48.953 -> 3ffffc10:  00000001 3ffef958 40100290 00000000  
11:10:48.953 -> 3ffffc20:  00000001 3ffef958 3ffef934 4020939f  
11:10:48.953 -> 3ffffc30:  009a3a4b 00000000 3fff011c 4020c34b  
11:10:48.953 -> 3ffffc40:  3fff00e4 3ffffe60 3ffffd60 4020cad0  
11:10:48.953 -> 3ffffc50:  00000000 3ffffe60 3ffffd60 402095c5  
11:10:48.953 -> 3ffffc60:  00000000 00000000 00000001 40100198  
11:10:48.953 -> 3ffffc70:  40210000 0104a8c0 3ffffd60 00000000  
11:10:48.985 -> 3ffffc80:  00000000 3ffffe60 3ffffd60 00000000  
11:10:48.985 -> 3ffffc90:  00000000 3ffffe60 3ffffd60 402099dd  
11:10:48.985 -> 3ffffca0:  3ffffd00 3ffffd00 3ffffce0 4020e2b0  
11:10:48.985 -> 3ffffcb0:  3ffffe60 3ffffd60 3ffffce0 4020dee9  
11:10:48.985 -> 3ffffcc0:  3ffffd00 3ffffd0c 4024c090 4020df08  
11:10:48.985 -> 3ffffcd0:  3ffe861c 3ffffd60 3ffffd18 4020dee9  
11:10:48.985 -> 3ffffce0:  736d2000 4020aa00 3ffffd60 3ffe8747  
11:10:49.017 -> 3ffffcf0:  00000001 3ffee9b8 3ffffd60 40209baf  
11:10:49.017 -> 3ffffd00:  736d2000 0002c700 80feebb0 736d2000  
11:10:49.017 -> 3ffffd10:  3ffffe00 80feebb0 00000000 3ffeeb50  
11:10:49.017 -> 3ffffd20:  80ffdad0 3ffeebb0 000001f4 3ffeeb50  
11:10:49.017 -> 3ffffd30:  3ffe861c 00000000 00000001 40202dd2  
11:10:49.017 -> 3ffffd40:  3fffdad0 00000001 00000002 3ffeeb50  
11:10:49.017 -> 3ffffd50:  3fffdad0 00000000 3ffeea20 40201086  
11:10:49.017 -> 3ffffd60:  3fff00e4 3ffef934 3ffefd54 3ffefd59  

[tablatronix]

Will test, have you tried a full erase?

What esp version??

[tablatronix]

No issue here

*wm:[2] v2.0.17  D:4
*wm:[2] [SYS] getCoreVersion():          3.1.2
*wm:[2] [SYS] system_get_sdk_version():  2.2.2-dev(38a443e)
*wm:[2] [SYS] system_get_boot_version(): 31
*wm:[2] [SYS] getFreeHeap():             47520

[PhDSM]

Here is info about the ESP I used
I have several of then and the problem occurs on all of them

esp8266

---

Chip ID c88a97
Flash chip ID 1450117
Flash size 4194304 bytes
Real flash size 4194304 bytes
Core version 2_6_3
Boot version 31
CPU frequency 80MHz
Memory - Free heap 42448 bytes available
Memory - Sketch size
Used / Total bytes
344032 / 962528

[GodisGod]

same question

[real-bombinho]

I hit the Exception (3) as well on some older NodeMCU1.0 boards but not on the ESP01 and D1 mini.

It seems to be raised due to no established connection on a first glance.
Albeit the NodeMCU projects are some legacy projects, nursed along with little remaining memory.

ESP01 and D1 mini use lesser memory and have less web dependent functionality.