starred/WiFiManager
1
0
Fork 0
mirror of https://github.com/tzapu/WiFiManager.git synced 2026-04-27 00:55:52 +03:00
Code Issues 656 Projects Releases 8 Packages Wiki Activity

[GH-ISSUE #961] Lost custom parameters sometimes.. #816

New issue
Closed
opened 2026-02-28 01:27:10 +03:00 by kerem · 15 comments
kerem commented 2026-02-28 01:27:10 +03:00
Owner
Copy link

Originally created by @dontsovcmc on GitHub (Nov 6, 2019).
Original GitHub issue: https://github.com/tzapu/WiFiManager/issues/961

Basic Infos

I add 27 custom parameters and increase style tag... Some /wifi responses are good, sometimes return page without all parameters or return only a piece of them (!)

Hardware

WiFimanager Branch/Release:

  • Master
  • Development

Esp8266/Esp32:

  • ESP8266
  • ESP32

Hardware: ESP-12e, esp01, esp25

  • ESP01
  • ESP12F (nodemcu)
  • Other

ESP Core Version: 2.4.0, staging
PLATFORM: Espressif 8266 2.2.3 #cd6f5cc > NodeMCU 1.0 (ESP-12E Module)
HARDWARE: ESP8266 80MHz, 80KB RAM, 4MB Flash
PACKAGES: toolchain-xtensa 2.40802.190218 (4.8.2), framework-arduinoespressif8266 2.20502.0 (2.5.2), tool-esptool 1.413.0 (4.13), tool-esptoolpy 1.20600.0 (2.6.0)

Description

DEBUG_MAX: Mem looks good.

I test connections with 2-3 clients - no differences.
Open ConfigPortal with mobile phone - OK
Open ConfigPortal with PC CaptivePortal - OK
Open PC Chrome - Failed!
F5 - Failed!
F5 - OK

Debug Messages

*WM: [2] <- HTTP Root 
*WM: [3] -> 192.168.4.1 
*WM: [2] Scan is cached 10175 ms ago
*WM: [2] <- HTTP Wifi 
*WM: [2] Scan is cached 14050 ms ago
*WM: [1] 11 networks found
*WM: [2] AP:  -47 Waterius_0.9.4      //WTF?!
*WM: [2] AP:  -56 do
*WM: [2] AP:  -56 doG
*WM: [2] AP:  -70 Smart_box-132
*WM: [2] AP:  -71 MGTS_GPON_8
*WM: [2] AP:  -74 mgts201
*WM: [2] AP:  -79 Beeline_2G_F2
*WM: [2] AP:  -83 MGTS_GPON_3
*WM: [2] AP:  -83 Onlime_205
*WM: [2] AP:  -91 Leva
*WM: [2] AP:  -91 ALARM
*WM: [3] Custom params 27
*WM: [3] Page len= 14233              //GOOD!
*WM: [3] Sent config page 
*WM: [3] -> captive.apple.com 
*WM: [2] <- Request redirected to captive portal 
*WM: [2] <- HTTP Root 
*WM: [3] -> 192.168.4.1 
*WM: [2] Scan is cached 14300 ms ago
*WM: [2] Portal Timeout In 287 seconds

*WM: [2] <- HTTP Wifi 
*WM: [2] Scan is cached 4401 ms ago
*WM: [1] 11 networks found
*WM: [2] AP:  -44 Waterius_0.9.4        //WTF?
*WM: [2] AP:  -57 doG
*WM: [2] AP:  -58 do
*WM: [2] AP:  -68 MGTS_GPON_8
*WM: [2] AP:  -70 MGTS_GPON_5
*WM: [2] AP:  -75 Onlime_205
*WM: [2] AP:  -77 mgts201
*WM: [2] AP:  -78 Beeline_2G_F
*WM: [2] AP:  -83 MGTS_GPON_3
*WM: [2] AP:  -85 romper-stomper
*WM: [2] AP:  -86 Leva
*WM: [3] Custom params 27
*WM: [3] Page len= 14253                //GOOD!
*WM: [3] Sent config page 
*WM: [2] <- HTTP Root 
*WM: [3] -> 192.168.4.1 
*WM: [2] Scan is cached 4599 ms ago


*WM: [2] WiFi Scan ASYNC completed in 1645 ms
*WM: [2] WiFi Scan ASYNC found: 10
*WM: [2] <- HTTP Wifi 
*WM: [2] Scan is cached 2115 ms ago
*WM: [1] 10 networks found
*WM: [2] AP:  -48 do
*WM: [2] AP:  -49 doG
*WM: [2] AP:  -64 mgts20
*WM: [2] AP:  -74 MGTS_GPON_5
*WM: [2] AP:  -77 Smart_box-132
*WM: [2] AP:  -86 Beeline_2G_F
*WM: [2] AP:  -86 Onlime_205
*WM: [2] AP:  -86 MGTS_GPON_8
*WM: [2] AP:  -91 Leva
*WM: [2] AP:  -91 MGTS_GPON_3
*WM: [3] Custom params 27
*WM: [3] Page len= 13751
*WM: [3] Sent config page 
*WM: [2] <- HTTP Root 
*WM: [3] -> bizujazvmr 
*WM: [2] <- Request redirected to captive portal 
*WM: [2] <- HTTP Root 
*WM: [3] -> nfbcojst 
*WM: [2] <- Request redirected to captive portal 
*WM: [2] <- HTTP Root 
*WM: [3] -> kzwvgmvgtaxs 
*WM: [2] <- Request redirected to captive portal 


*WM: [2] Scan is cached 14050 ms ago
*WM: [1] 11 networks found
*WM: [2] AP:  -47 Waterius_0.9.4      //WTF?!
*WM: [2] AP:  -56 do
*WM: [2] AP:  -56 doG
*WM: [2] AP:  -70 Smart_box-132
*WM: [2] AP:  -71 MGTS_GPON_8
*WM: [2] AP:  -74 mgts201
*WM: [2] AP:  -79 Beeline_2G_F
*WM: [2] AP:  -83 MGTS_GPON_3
*WM: [2] AP:  -83 Onlime_205
*WM: [2] AP:  -91 Leva
*WM: [2] AP:  -91 ALARM
*WM: [3] Custom params 27
*WM: [3] Page len= 14233              //GOOD
*WM: [3] Sent config page 

*WM: [2] <- HTTP Wifi 
*WM: [2] Scan is cached 45475 ms ago
*WM: [1] 10 networks found
*WM: [2] AP:  -48 do
*WM: [2] AP:  -49 doG
*WM: [2] AP:  -64 mgts201
*WM: [2] AP:  -74 MGTS_GPON_5
*WM: [2] AP:  -77 Smart_box-132
*WM: [2] AP:  -86 Beeline_2G_F
*WM: [2] AP:  -86 Onlime_205
*WM: [2] AP:  -86 MGTS_GPON_8
*WM: [2] AP:  -91 Leva
*WM: [2] AP:  -91 MGTS_GPON_3
*WM: [3] Custom params 27
*WM: [3] Page len= 9549               //WTF?!
*WM: [3] Sent config page 



Here is part of data without custom parameters: 
type='password' placeholder=''><hr><br/><br/><br/><button type='submit'



*WM: AP:  -87 MGTS_GPON_3520
MEM: 15856
*WM: Custom params 26
MEM: 15856
*WM: Page len= 9822   // BAD!


//remove JS code ~1500
*WM: Custom params 26
MEM: 15080
*WM: Page len= 12501  //GOOD!


MEM: 19056
*WM: Custom params 26
MEM: 15856
*WM: Page len= 14016  // Good!

//GOOD try:

MEM: 19032
*WM: AP:  -86 Onlime_205
MEM: 18856
*WM: AP:  -89 Leva
MEM: 18296
*WM: Custom params 26
MEM: 15112
*WM: Page len= 12755
:wr 86 0
:wrc 86 86 0
:wr 14133 0
:wrc 986 14133 0
:ack 86
:ack 986
:wr 13147 986
:wrc 1072 13147 0
:ack 1072
:wr 12075 2058
:wrc 1072 12075 0
:ack 1072
:wr 11003 3130
:wrc 1072 11003 0
:ack 1072
:wr 9931 4202
:wrc 1072 9931 0
:ack 1072
:wr 8859 5274
:wrc 1072 8859 0
:ack 1072
:wr 7787 6346
:wrc 1072 7787 0
:ack 1072
:wr 6715 7418
:wrc 1072 6715 0
:ack 1072
:wr 5643 8490
:wrc 1072 5643 0
:ack 1072
:wr 4571 9562
:wrc 1072 4571 0
:ack 1072
:wr 3499 10634
:wrc 1072 3499 0
:ack 1072
:wr 2427 11706
:wrc 1072 2427 0
:ack 1072
:wr 1355 12778
:wrc 1072 1355 0
:ack 1072
:wr 283 13850
:wrc 283 283 0
MEM: 13288
*WM: Sent config page 
:ack 283
:rcl
:abort
:ur 1
WS:dis
:del
:ref 1
WS:av
:ref 2
:ur 2
:ref 2
:ur 2
:rn 353
:c0 1, 353
[HTTP] states route
Originally created by @dontsovcmc on GitHub (Nov 6, 2019). Original GitHub issue: https://github.com/tzapu/WiFiManager/issues/961 ### Basic Infos I add 27 custom parameters and increase style tag... Some /wifi responses are good, sometimes return page without all parameters or return only a piece of them (!) #### Hardware **WiFimanager Branch/Release:** - [ ] Master - [x] Development **Esp8266/Esp32:** - [x] ESP8266 - [ ] ESP32 **Hardware: ESP-12e, esp01, esp25** - [x] ESP01 - [x] ESP12F (nodemcu) - [ ] Other **ESP Core Version: 2.4.0, staging** PLATFORM: Espressif 8266 2.2.3 #cd6f5cc > NodeMCU 1.0 (ESP-12E Module) HARDWARE: ESP8266 80MHz, 80KB RAM, 4MB Flash PACKAGES: toolchain-xtensa 2.40802.190218 (4.8.2), framework-arduinoespressif8266 2.20502.0 (2.5.2), tool-esptool 1.413.0 (4.13), tool-esptoolpy 1.20600.0 (2.6.0) ### Description DEBUG_MAX: Mem looks good. I test connections with 2-3 clients - no differences. Open ConfigPortal with mobile phone - OK Open ConfigPortal with PC CaptivePortal - OK Open PC Chrome - Failed! F5 - Failed! F5 - OK ### Debug Messages ``` *WM: [2] <- HTTP Root *WM: [3] -> 192.168.4.1 *WM: [2] Scan is cached 10175 ms ago *WM: [2] <- HTTP Wifi *WM: [2] Scan is cached 14050 ms ago *WM: [1] 11 networks found *WM: [2] AP: -47 Waterius_0.9.4 //WTF?! *WM: [2] AP: -56 do *WM: [2] AP: -56 doG *WM: [2] AP: -70 Smart_box-132 *WM: [2] AP: -71 MGTS_GPON_8 *WM: [2] AP: -74 mgts201 *WM: [2] AP: -79 Beeline_2G_F2 *WM: [2] AP: -83 MGTS_GPON_3 *WM: [2] AP: -83 Onlime_205 *WM: [2] AP: -91 Leva *WM: [2] AP: -91 ALARM *WM: [3] Custom params 27 *WM: [3] Page len= 14233 //GOOD! *WM: [3] Sent config page *WM: [3] -> captive.apple.com *WM: [2] <- Request redirected to captive portal *WM: [2] <- HTTP Root *WM: [3] -> 192.168.4.1 *WM: [2] Scan is cached 14300 ms ago *WM: [2] Portal Timeout In 287 seconds *WM: [2] <- HTTP Wifi *WM: [2] Scan is cached 4401 ms ago *WM: [1] 11 networks found *WM: [2] AP: -44 Waterius_0.9.4 //WTF? *WM: [2] AP: -57 doG *WM: [2] AP: -58 do *WM: [2] AP: -68 MGTS_GPON_8 *WM: [2] AP: -70 MGTS_GPON_5 *WM: [2] AP: -75 Onlime_205 *WM: [2] AP: -77 mgts201 *WM: [2] AP: -78 Beeline_2G_F *WM: [2] AP: -83 MGTS_GPON_3 *WM: [2] AP: -85 romper-stomper *WM: [2] AP: -86 Leva *WM: [3] Custom params 27 *WM: [3] Page len= 14253 //GOOD! *WM: [3] Sent config page *WM: [2] <- HTTP Root *WM: [3] -> 192.168.4.1 *WM: [2] Scan is cached 4599 ms ago *WM: [2] WiFi Scan ASYNC completed in 1645 ms *WM: [2] WiFi Scan ASYNC found: 10 *WM: [2] <- HTTP Wifi *WM: [2] Scan is cached 2115 ms ago *WM: [1] 10 networks found *WM: [2] AP: -48 do *WM: [2] AP: -49 doG *WM: [2] AP: -64 mgts20 *WM: [2] AP: -74 MGTS_GPON_5 *WM: [2] AP: -77 Smart_box-132 *WM: [2] AP: -86 Beeline_2G_F *WM: [2] AP: -86 Onlime_205 *WM: [2] AP: -86 MGTS_GPON_8 *WM: [2] AP: -91 Leva *WM: [2] AP: -91 MGTS_GPON_3 *WM: [3] Custom params 27 *WM: [3] Page len= 13751 *WM: [3] Sent config page *WM: [2] <- HTTP Root *WM: [3] -> bizujazvmr *WM: [2] <- Request redirected to captive portal *WM: [2] <- HTTP Root *WM: [3] -> nfbcojst *WM: [2] <- Request redirected to captive portal *WM: [2] <- HTTP Root *WM: [3] -> kzwvgmvgtaxs *WM: [2] <- Request redirected to captive portal *WM: [2] Scan is cached 14050 ms ago *WM: [1] 11 networks found *WM: [2] AP: -47 Waterius_0.9.4 //WTF?! *WM: [2] AP: -56 do *WM: [2] AP: -56 doG *WM: [2] AP: -70 Smart_box-132 *WM: [2] AP: -71 MGTS_GPON_8 *WM: [2] AP: -74 mgts201 *WM: [2] AP: -79 Beeline_2G_F *WM: [2] AP: -83 MGTS_GPON_3 *WM: [2] AP: -83 Onlime_205 *WM: [2] AP: -91 Leva *WM: [2] AP: -91 ALARM *WM: [3] Custom params 27 *WM: [3] Page len= 14233 //GOOD *WM: [3] Sent config page *WM: [2] <- HTTP Wifi *WM: [2] Scan is cached 45475 ms ago *WM: [1] 10 networks found *WM: [2] AP: -48 do *WM: [2] AP: -49 doG *WM: [2] AP: -64 mgts201 *WM: [2] AP: -74 MGTS_GPON_5 *WM: [2] AP: -77 Smart_box-132 *WM: [2] AP: -86 Beeline_2G_F *WM: [2] AP: -86 Onlime_205 *WM: [2] AP: -86 MGTS_GPON_8 *WM: [2] AP: -91 Leva *WM: [2] AP: -91 MGTS_GPON_3 *WM: [3] Custom params 27 *WM: [3] Page len= 9549 //WTF?! *WM: [3] Sent config page Here is part of data without custom parameters: type='password' placeholder=''><hr><br/><br/><br/><button type='submit' *WM: AP: -87 MGTS_GPON_3520 MEM: 15856 *WM: Custom params 26 MEM: 15856 *WM: Page len= 9822 // BAD! //remove JS code ~1500 *WM: Custom params 26 MEM: 15080 *WM: Page len= 12501 //GOOD! MEM: 19056 *WM: Custom params 26 MEM: 15856 *WM: Page len= 14016 // Good! ``` //GOOD try: ``` MEM: 19032 *WM: AP: -86 Onlime_205 MEM: 18856 *WM: AP: -89 Leva MEM: 18296 *WM: Custom params 26 MEM: 15112 *WM: Page len= 12755 :wr 86 0 :wrc 86 86 0 :wr 14133 0 :wrc 986 14133 0 :ack 86 :ack 986 :wr 13147 986 :wrc 1072 13147 0 :ack 1072 :wr 12075 2058 :wrc 1072 12075 0 :ack 1072 :wr 11003 3130 :wrc 1072 11003 0 :ack 1072 :wr 9931 4202 :wrc 1072 9931 0 :ack 1072 :wr 8859 5274 :wrc 1072 8859 0 :ack 1072 :wr 7787 6346 :wrc 1072 7787 0 :ack 1072 :wr 6715 7418 :wrc 1072 6715 0 :ack 1072 :wr 5643 8490 :wrc 1072 5643 0 :ack 1072 :wr 4571 9562 :wrc 1072 4571 0 :ack 1072 :wr 3499 10634 :wrc 1072 3499 0 :ack 1072 :wr 2427 11706 :wrc 1072 2427 0 :ack 1072 :wr 1355 12778 :wrc 1072 1355 0 :ack 1072 :wr 283 13850 :wrc 283 283 0 MEM: 13288 *WM: Sent config page :ack 283 :rcl :abort :ur 1 WS:dis :del :ref 1 WS:av :ref 2 :ur 2 :ref 2 :ur 2 :rn 353 :c0 1, 353 [HTTP] states route ```
kerem closed this issue 2026-02-28 01:27:10 +03:00
kerem commented 2026-02-28 01:27:11 +03:00
Author
Owner
Copy link

@tablatronix commented on GitHub (Nov 6, 2019):

This sounds like another open issue that was running out of memory

<!-- gh-comment-id:550123563 --> @tablatronix commented on GitHub (Nov 6, 2019): This sounds like another open issue that was running out of memory
kerem commented 2026-02-28 01:27:11 +03:00
Author
Owner
Copy link

@dontsovcmc commented on GitHub (Nov 6, 2019):

Also strange:

After ~5 connections/disconnections ESP lost all scanned networks.

There were 5. It shows 1 with empty name...
F5 - return 5 networks..

MEM: 19904
*WM: WiFi Scan ASYNC started 
MEM: 30000
*WM: <- HTTP Wifi 
MEM: 21848
*WM: Scan is cached 25906 ms ago
MEM: 21896
*WM: 4 networks found
MEM: 21896
*WM: DUP AP: 
MEM: 21896
*WM: DUP AP: 
MEM: 21896
*WM: DUP AP: 
MEM: 21648
*WM: AP:  0 
MEM: 21072

*WM: <- HTTP Wifi 
MEM: 22104
*WM: Scan is cached 30678 ms ago
MEM: 22152
*WM: 3 networks found
MEM: 21904
*WM: AP:  -46 do
MEM: 21656
*WM: AP:  -48 doG
MEM: 21312
*WM: AP:  -71 MGTS_GPON_8
MEM: 20848
*WM: Custom params 26
<!-- gh-comment-id:550124017 --> @dontsovcmc commented on GitHub (Nov 6, 2019): Also strange: After ~5 connections/disconnections ESP lost all scanned networks. There were 5. It shows 1 with empty name... F5 - return 5 networks.. ``` MEM: 19904 *WM: WiFi Scan ASYNC started MEM: 30000 *WM: <- HTTP Wifi MEM: 21848 *WM: Scan is cached 25906 ms ago MEM: 21896 *WM: 4 networks found MEM: 21896 *WM: DUP AP: MEM: 21896 *WM: DUP AP: MEM: 21896 *WM: DUP AP: MEM: 21648 *WM: AP: 0 MEM: 21072 ``` ``` *WM: <- HTTP Wifi MEM: 22104 *WM: Scan is cached 30678 ms ago MEM: 22152 *WM: 3 networks found MEM: 21904 *WM: AP: -46 do MEM: 21656 *WM: AP: -48 doG MEM: 21312 *WM: AP: -71 MGTS_GPON_8 MEM: 20848 *WM: Custom params 26 ```
kerem commented 2026-02-28 01:27:11 +03:00
Author
Owner
Copy link

@dontsovcmc commented on GitHub (Nov 6, 2019):

I turn off asyncronous scan Wi-Fi.
Additional tryes:

WM: custp len= 3064
MEM: 18024
*WM: Page len= 7924   //BAD 
MEM: 16584

*WM: AP:  -96 SPS-3
MEM: 16328
*WM: Custom params 27
MEM: 16040
*WM: custp len=
....
MEM: 16328
*WM: Page len= 8270     //BAD 
MEM: 14656

*WM: AP:  -90 Blackvue750S-8335D6
MEM: 17584
*WM: Custom params 27
MEM: 17296
*WM: custp len=
MEM: 17128
*WM: custp len= 163
MEM: 17048
*WM: custp len= 3064
MEM: 17064
*WM: Page len= 6200     //BAD 
MEM: 16144
*WM: Sent config page
MEM: 24400
*WM: -> www.msftconnecttest.com
MEM: 24520


MEM: 17280
*WM: AP:  -93 Blackvue750S-8335D6
MEM: 16800
*WM: Custom params 27
MEM: 16512
*WM: custp len=
MEM: 16344
*WM: custp len= 163
MEM: 16264
*WM: custp len= 3064     //BAD 
MEM: 15832
*WM: Page len= 7956
MEM: 15360
*WM: Sent config page

GOOD

*WM: AP:  -89 Blackvue750S-8335D6
MEM: 19040
*WM: Custom params 27
MEM: 18752
*WM: custp len=
......
*WM: custp len= 2986
MEM: 15720
*WM: custp len= 3064   
MEM: 15872
*WM: Page len= 11101  //GOOD
MEM: 15088



*WM: <- Request redirected to captive portal
MEM: 31168
*WM: <- HTTP Wifi
MEM: 21264
*WM: WiFi Scan completed in 2189 ms
MEM: 21264
*WM: 12 networks found
MEM: 21264
*WM: DUP AP: newsprin
MEM: 21080
*WM: AP:  -52 a2-tst
MEM: 20896
....
*WM: AP:  -91 MikroTik-BE86A6 CPI
MEM: 18728
*WM: Custom params 27
MEM: 18440
*WM: custp len=
MEM: 18272
*WM: custp len= 163
MEM: 18192
.........
*WM: custp len= 3064
MEM: 15560
*WM: Page len= 11309       //GOOD
MEM: 15312
*WM: Sent config page


refresh 
*WM: custp len= 3064
MEM: 18072
*WM: Page len= 11107     //GOOD
MEM: 17304
*WM: Sent config page
<!-- gh-comment-id:550339768 --> @dontsovcmc commented on GitHub (Nov 6, 2019): I turn off asyncronous scan Wi-Fi. Additional tryes: ``` WM: custp len= 3064 MEM: 18024 *WM: Page len= 7924 //BAD MEM: 16584 *WM: AP: -96 SPS-3 MEM: 16328 *WM: Custom params 27 MEM: 16040 *WM: custp len= .... MEM: 16328 *WM: Page len= 8270 //BAD MEM: 14656 *WM: AP: -90 Blackvue750S-8335D6 MEM: 17584 *WM: Custom params 27 MEM: 17296 *WM: custp len= MEM: 17128 *WM: custp len= 163 MEM: 17048 *WM: custp len= 3064 MEM: 17064 *WM: Page len= 6200 //BAD MEM: 16144 *WM: Sent config page MEM: 24400 *WM: -> www.msftconnecttest.com MEM: 24520 MEM: 17280 *WM: AP: -93 Blackvue750S-8335D6 MEM: 16800 *WM: Custom params 27 MEM: 16512 *WM: custp len= MEM: 16344 *WM: custp len= 163 MEM: 16264 *WM: custp len= 3064 //BAD MEM: 15832 *WM: Page len= 7956 MEM: 15360 *WM: Sent config page ``` GOOD ``` *WM: AP: -89 Blackvue750S-8335D6 MEM: 19040 *WM: Custom params 27 MEM: 18752 *WM: custp len= ...... *WM: custp len= 2986 MEM: 15720 *WM: custp len= 3064 MEM: 15872 *WM: Page len= 11101 //GOOD MEM: 15088 *WM: <- Request redirected to captive portal MEM: 31168 *WM: <- HTTP Wifi MEM: 21264 *WM: WiFi Scan completed in 2189 ms MEM: 21264 *WM: 12 networks found MEM: 21264 *WM: DUP AP: newsprin MEM: 21080 *WM: AP: -52 a2-tst MEM: 20896 .... *WM: AP: -91 MikroTik-BE86A6 CPI MEM: 18728 *WM: Custom params 27 MEM: 18440 *WM: custp len= MEM: 18272 *WM: custp len= 163 MEM: 18192 ......... *WM: custp len= 3064 MEM: 15560 *WM: Page len= 11309 //GOOD MEM: 15312 *WM: Sent config page refresh *WM: custp len= 3064 MEM: 18072 *WM: Page len= 11107 //GOOD MEM: 17304 *WM: Sent config page ```
kerem commented 2026-02-28 01:27:11 +03:00
Author
Owner
Copy link

@tablatronix commented on GitHub (Nov 7, 2019):

This would be expected if stack is getting corrupted, I think the network scan struct gets created there

<!-- gh-comment-id:550564805 --> @tablatronix commented on GitHub (Nov 7, 2019): This would be expected if stack is getting corrupted, I think the network scan struct gets created there
kerem commented 2026-02-28 01:27:11 +03:00
Author
Owner
Copy link

@dontsovcmc commented on GitHub (Nov 12, 2019):

@tablatronix here is a good explain of fragmentation: https://cpp4arduino.com/2018/11/06/what-is-heap-fragmentation.html
as you see "replace, concat... " functions are best fragmentation friends...
One of the possible way to decrease it: add __FlashStringHelper arguments for some functions.
Firstly, I should understand how can i measure fragmentation.

https://esp8266life.wordpress.com/2019/01/13/memory-memory-always-memory/
More warlike article: https://syonyk.blogspot.com/2017/02/common-arduino-library-sram-use.html

Look at our rock'n'roll config page: https://waterius.ru/esp/config.html
"understand and forgive" us with this issuu =)

<!-- gh-comment-id:553102746 --> @dontsovcmc commented on GitHub (Nov 12, 2019): @tablatronix here is a good explain of fragmentation: https://cpp4arduino.com/2018/11/06/what-is-heap-fragmentation.html as you see "replace, concat... " functions are best fragmentation friends... One of the possible way to decrease it: add __FlashStringHelper arguments for some functions. Firstly, I should understand how can i measure fragmentation. https://esp8266life.wordpress.com/2019/01/13/memory-memory-always-memory/ More warlike article: https://syonyk.blogspot.com/2017/02/common-arduino-library-sram-use.html Look at our rock'n'roll config page: https://waterius.ru/esp/config.html "understand and forgive" us with this issuu =)
kerem commented 2026-02-28 01:27:11 +03:00
Author
Owner
Copy link

@dontsovcmc commented on GitHub (Nov 12, 2019):

I fork and run heap fragmentation test for ESP8266 https://github.com/dontsovcmc/cpp4arduino/tree/esp8266_platformio_heap
I think, we have WiFiManager heap test.

Look and their Heap test! They allocate strings in the loop.

Available | LargestBlock | Fragmentation

32560 32552 0.02
23704 19768 16.60
19784 14352 27.46
19176 12616 34.21
17208 8744 49.19
16968 8744 48.47
16968 8744 48.47
16200 6752 58.32
16040 4856 69.73
15112 4872 67.76
14112 4856 65.59
14080 3408 75.80
14280 4864 65.94
13848 2896 79.09
13576 2600 80.85
13336 5064 62.03
13344 4968 62.77
13344 4968 62.77
13344 4968 62.77
13344 4968 62.77
13184 3856 70.75
13168 2896 78.01
13152 3408 74.09
13136 1912 85.44
13136 1912 85.44
13136 1912 85.44
13136 1912 85.44
13136 1912 85.44
13136 1912 85.44
13040 1880 85.58
13040 1880 85.58  //look!
..... many times..
12536 1880 85.00
.....

12536 availiable memory, but only 1880 bytes you can allocate cause fragmention is 85% (1880 * 100% / 12536)

The first idea - add memory functions to WiFiManager and monitor fragmentation

<!-- gh-comment-id:553158860 --> @dontsovcmc commented on GitHub (Nov 12, 2019): I fork and run heap fragmentation test for ESP8266 https://github.com/dontsovcmc/cpp4arduino/tree/esp8266_platformio_heap I think, we have WiFiManager heap test. Look and their Heap test! They allocate strings in the loop. Available | LargestBlock | Fragmentation ``` 32560 32552 0.02 23704 19768 16.60 19784 14352 27.46 19176 12616 34.21 17208 8744 49.19 16968 8744 48.47 16968 8744 48.47 16200 6752 58.32 16040 4856 69.73 15112 4872 67.76 14112 4856 65.59 14080 3408 75.80 14280 4864 65.94 13848 2896 79.09 13576 2600 80.85 13336 5064 62.03 13344 4968 62.77 13344 4968 62.77 13344 4968 62.77 13344 4968 62.77 13184 3856 70.75 13168 2896 78.01 13152 3408 74.09 13136 1912 85.44 13136 1912 85.44 13136 1912 85.44 13136 1912 85.44 13136 1912 85.44 13136 1912 85.44 13040 1880 85.58 13040 1880 85.58 //look! ..... many times.. 12536 1880 85.00 ..... ``` 12536 availiable memory, but only 1880 bytes you can allocate cause fragmention is 85% (1880 * 100% / 12536) The first idea - add memory functions to WiFiManager and monitor fragmentation
kerem commented 2026-02-28 01:27:11 +03:00
Author
Owner
Copy link

@tablatronix commented on GitHub (Nov 12, 2019):

#518

<!-- gh-comment-id:553160709 --> @tablatronix commented on GitHub (Nov 12, 2019): #518
kerem commented 2026-02-28 01:27:11 +03:00
Author
Owner
Copy link

@tablatronix commented on GitHub (Nov 12, 2019):

DEBUG_MAX already does memory logging fyi
i can add some fragmentation specific calls or hooks. Just a quick look and it should be pretty obvious where the main problem is

<!-- gh-comment-id:553163851 --> @tablatronix commented on GitHub (Nov 12, 2019): DEBUG_MAX already does memory logging fyi i can add some fragmentation specific calls or hooks. Just a quick look and it should be pretty obvious where the main problem is
kerem commented 2026-02-28 01:27:11 +03:00
Author
Owner
Copy link

@dontsovcmc commented on GitHub (Nov 13, 2019):

I was gonna do this commit today, and you beat me to it. Thanks! I will report here.

<!-- gh-comment-id:553282352 --> @dontsovcmc commented on GitHub (Nov 13, 2019): I was gonna do this commit today, and you beat me to it. Thanks! I will report here.
kerem commented 2026-02-28 01:27:11 +03:00
Author
Owner
Copy link

@dontsovcmc commented on GitHub (Nov 13, 2019):

hm..

BAD: 
*WM: custp len= 3467
[MEM] free: 18304 | max: 14624 | frag:  18%
*WM: custp len= 3542
[MEM] free: 22184 | max: 14624 | frag:  27%
*WM: Page len= 7362
[MEM] free: 21416 | max: 14528 | frag:  26%
*WM: Sent config page

GOOD: 
[MEM] free: 18064 | max: 16432 | frag:   9%
*WM: custp len= 3467
[MEM] free: 17936 | max: 16352 | frag:   9%
*WM: custp len= 3542
[MEM] free: 18120 | max: 11456 | frag:  32%
*WM: Page len= 11423
[MEM] free: 16664 | max: 15456 | frag:   8%
*WM: Sent config page

think about refactoring code.
adding String page; page.reserve(12000); is not a good way

<!-- gh-comment-id:553400393 --> @dontsovcmc commented on GitHub (Nov 13, 2019): hm.. ``` BAD: *WM: custp len= 3467 [MEM] free: 18304 | max: 14624 | frag: 18% *WM: custp len= 3542 [MEM] free: 22184 | max: 14624 | frag: 27% *WM: Page len= 7362 [MEM] free: 21416 | max: 14528 | frag: 26% *WM: Sent config page GOOD: [MEM] free: 18064 | max: 16432 | frag: 9% *WM: custp len= 3467 [MEM] free: 17936 | max: 16352 | frag: 9% *WM: custp len= 3542 [MEM] free: 18120 | max: 11456 | frag: 32% *WM: Page len= 11423 [MEM] free: 16664 | max: 15456 | frag: 8% *WM: Sent config page ``` think about refactoring code. adding String page; page.reserve(12000); is not a good way
kerem commented 2026-02-28 01:27:11 +03:00
Author
Owner
Copy link

@tablatronix commented on GitHub (Nov 13, 2019):

I am pretty sure all of the memory issues are the page string variable.
So simply fixing that will help.

Ideas welcome, I never had frag more than 13%, how much custom params or html are you using ?

<!-- gh-comment-id:553411142 --> @tablatronix commented on GitHub (Nov 13, 2019): I am pretty sure all of the memory issues are the page string variable. So simply fixing that will help. Ideas welcome, I never had frag more than 13%, how much custom params or html are you using ?
kerem commented 2026-02-28 01:27:11 +03:00
Author
Owner
Copy link

@dontsovcmc commented on GitHub (Nov 13, 2019):

@tablatronix about 28 custom parameters with long labels and custom JS =) You can see result page (without minimizing): https://waterius.ru/esp/config.html

<!-- gh-comment-id:553413050 --> @dontsovcmc commented on GitHub (Nov 13, 2019): @tablatronix about 28 custom parameters with long labels and custom JS =) You can see result page (without minimizing): https://waterius.ru/esp/config.html
kerem commented 2026-02-28 01:27:11 +03:00
Author
Owner
Copy link

@dontsovcmc commented on GitHub (Nov 14, 2019):

@tablatronix do you have custom callback example?
I want to make pull request, but I added my pages into yours..
I need:

  1. redefine handleRoot
  2. clone handleWifi and handleWifiSave pages
    Is it possible outside WiFiManager files?

Refactor #1:
String getParamOut();
String getScanItemOut();
String getStaticOut();

change to:
void          appendParamOut(String &);
void          appendScanItemOut(String &);
void          appendStaticOut(String &);

It's better to add page.reserve(PAGE_MAX_BYTES);

<!-- gh-comment-id:554056959 --> @dontsovcmc commented on GitHub (Nov 14, 2019): @tablatronix do you have custom callback example? I want to make pull request, but I added my pages into yours.. I need: 1. redefine handleRoot 2. clone handleWifi and handleWifiSave pages Is it possible outside WiFiManager files? Refactor #1: String getParamOut(); String getScanItemOut(); String getStaticOut(); change to: void appendParamOut(String &); void appendScanItemOut(String &); void appendStaticOut(String &); It's better to add page.reserve(PAGE_MAX_BYTES);
kerem commented 2026-02-28 01:27:11 +03:00
Author
Owner
Copy link

@tablatronix commented on GitHub (Nov 14, 2019):

see DEV/* example

  wm.setWebServerCallback(bindServerCallback);

void bindServerCallback(){
  wm.server->on("/custom",handleRoute);
  // wm.server->on("/info",handleRoute); // can override wm!
}

void handleRoute(){
  Serial.println("[HTTP] handle route");
  wm.server->send(200, "text/plain", "hello from user code");
}
<!-- gh-comment-id:554079118 --> @tablatronix commented on GitHub (Nov 14, 2019): see DEV/* example ```C++ wm.setWebServerCallback(bindServerCallback); void bindServerCallback(){ wm.server->on("/custom",handleRoute); // wm.server->on("/info",handleRoute); // can override wm! } void handleRoute(){ Serial.println("[HTTP] handle route"); wm.server->send(200, "text/plain", "hello from user code"); } ```
kerem commented 2026-02-28 01:27:11 +03:00
Author
Owner
Copy link

@dontsovcmc commented on GitHub (Nov 23, 2019):

I think problem solved! Memory issuu. Thanks for debug.

<!-- gh-comment-id:557842238 --> @dontsovcmc commented on GitHub (Nov 23, 2019): I think problem solved! Memory issuu. Thanks for debug.
Sign in to join this conversation.
No Branch/Tag specified
Branches Tags
master
revert-1849-master
feature_fastconnect
feature_auth
feature_slimable
PEAP
feature_statichtmlparams
feature_asyncwebserver
feature_pagestringsref
parameter-smart-ptr
gh-pages
Legacy_v1
hotfixes
autochannelselect_feature
travis
smartconfig
v2.0.17
v2.0.16-rc.2
v2.0.15-rc.1
v2.0.0-rc.1
v2.0.14-beta
v2.0.13-beta
v2.0.12-beta
v2.0.11-beta
v2.0.10-beta
v2.0.9-beta
v2.0.8-beta
2.0.7-beta
2.0.6-beta
2.0.5-beta
2.0.4-beta
0.16.0
2.0.3-alpha
0.15.0
0.14
0.13
0.12
0.11
0.10
0.9
0.8
0.7
0.6
0.5
v0.4
v0.3
v0.2
v0.1
Labels
Clear labels   
📶 WiFi

   
🕸️ HTTP

   
Branch

   
DEV Help Wanted

   
Discussion

   
Documentation

   
ESP32

   
Example

   
Good First Issue

   
Hotfix

   
In Progress

   
Incomplete

   
Needs Feeback

   
Priority

   
QA

   
Question

   
Task

   
Upstream/Dependancy

   
bug

   
duplicate

   
enhancement

   
invalid

   
pull-request

Mirrored from GitHub Pull Request

  
wontfix
No labels
📶 WiFi
🕸️ HTTP
Branch
DEV Help Wanted
Discussion
Documentation
ESP32
Example
Good First Issue
Hotfix
In Progress
Incomplete
Needs Feeback
Priority
QA
Question
Task
Upstream/Dependancy
bug
duplicate
enhancement
invalid
pull-request
wontfix
Milestone
Clear milestone
No items
No milestone
Projects
Clear projects
No items
No project
Assignees
Clear assignees
No assignees
1 participant
Notifications
Due date
The due date is invalid or out of range. Please use the format "yyyy-mm-dd".

No due date set.

Dependencies

No dependencies set.

Reference
starred/WiFiManager#816
No description provided.