[ESP IDF v5.3] Unidentified Wifi Bug

[nonagon]

Our production firmware handle to scan and connect to wifi networks to create a mesh network between nodes (it's not ESP MESH but another implementation).
All things works fine until under some some conditions the nodes executes numerous scan and connections to some wifi nets.
On the firmware side the behaviour is what we expected to do but after some time (hours) the firmware crash and print for ever this sequences of errors:

Code: Select all

W (287895752) wifi:pp task q full: s=7 p=3ffd3154

E (287895752) wifi:fail to post timer, type=12
W (287897720) wifi:pp task q full: s=7 p=3ffd3154

E (287897720) wifi:fail to post timer, type=12
W (287899688) wifi:pp task q full: s=7 p=3ffd3154

E (287899688) wifi:fail to post timer, type=12
W (287901654) wifi:pp task q full: s=7 p=3ffd3154

E (287901654) wifi:fail to post timer, type=12
W (287903622) wifi:pp task q full: s=7 p=3ffd3154

E (287903622) wifi:fail to post timer, type=12
W (287905590) wifi:pp task q full: s=7 p=3ffd3154

E (287905590) wifi:fail to post timer, type=12
W (287907556) wifi:pp task q full: s=7 p=3ffd3154

E (287907556) wifi:fail to post timer, type=12
W (287909524) wifi:pp task q full: s=7 p=3ffd3154

E (287909524) wifi:fail to post timer, type=12
W (287911492) wifi:pp task q full: s=7 p=3ffd3154

E (287911492) wifi:fail to post timer, type=12
W (287913460) wifi:pp task q full: s=7 p=3ffd3154

E (287913460) wifi:fail to post timer, type=12
W (287915426) wifi:pp task q full: s=7 p=3ffd3154

E (287915426) wifi:fail to post timer, type=12
W (287917394) wifi:pp task q full: s=7 p=3ffd3154

E (287917394) wifi:fail to post timer, type=12
W (287919362) wifi:pp task q full: s=7 p=3ffd3154

E (287919362) wifi:fail to post timer, type=12
W (287921328) wifi:pp task q full: s=7 p=3ffd3154

E (287921328) wifi:fail to post timer, type=12
W (287923296) wifi:pp task q full: s=7 p=3ffd3154

E (287923296) wifi:fail to post timer, type=12

Can someone explain what's is happening at ESP-IDF level and point to what can cause this?
Esp idf version is 5.3.0 release, MCU is ESP32-S2 (this happen on chips without PSRAM and on chip with PSRAM without differencies).
PS: the firmware uses also SoftAP.
Many thanks in advice.

[nonagon]

Anyone from ESP support to point me to a solution?