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Fix LoadProhibited - #73

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me-no-dev merged 1 commit into
me-no-dev:masterfrom
Bmooij:feature/FIx_LoadProhibited_arg
Oct 17, 2019
Merged

Fix LoadProhibited#73
me-no-dev merged 1 commit into
me-no-dev:masterfrom
Bmooij:feature/FIx_LoadProhibited_arg

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@Bmooij

@Bmooij Bmooij commented Oct 15, 2019

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For my project I'm using the Async Event Source Plugin from ESPAsyncWebServer.

When a client is disconnects the following error occurs:

Guru Meditation Error: Core 1 panic'ed (LoadProhibited). Exception was unhandled.

Core 1 register dump:
PC      : 0x4017667f  PS      : 0x00060d30  A0      : 0x80176794  A1      : 0x3ffe8270  
A2      : 0x00000000  A3      : 0x3ffd98c0  A4      : 0x40085ff0  A5      : 0x00000001  
A6      : 0x00060d20  A7      : 0x00000000  A8      : 0x8008bb10  A9      : 0x3ffe8260  
A10     : 0x00000003  A11     : 0x00060f23  A12     : 0x00060f20  A13     : 0x0000000c  
A14     : 0x3ffdae48  A15     : 0x00000000  SAR     : 0x0000000a  EXCCAUSE: 0x0000001c  
EXCVADDR: 0x00000004  LBEG    : 0x4000c46c  LEND    : 0x4000c477  LCOUNT  : 0xffffffff  

Backtrace: 0x4017667f:0x3ffe8270 0x40176791:0x3ffe82a0 0x4017691f:0x3ffe82c0 0x4008a991:0x3ffe82f0

Decoded stack results:

0x4017667f: AsyncClient::_poll(tcp_pcb*) at .pio\libdeps\development\AsyncTCP\src\AsyncTCP.cpp line 945
0x40176791: AsyncClient::_s_poll(void*, tcp_pcb*) at .pio\libdeps\development\AsyncTCP\src\AsyncTCP.cpp line 1203
0x4017691f: _async_service_task(void*) at .pio\libdeps\development\AsyncTCP\src\AsyncTCP.cpp line 168
0x4008a991: vPortTaskWrapper at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/freertos/port.c line 143

This crash happens when arg is NULL.

@me-no-dev
me-no-dev merged commit ca8ac5f into me-no-dev:master Oct 17, 2019
tve pushed a commit to tve/AsyncTCP that referenced this pull request Jan 22, 2020
@robert-alfaro @tve
mbed-tls-try2 updates (#3)
44b3d6b 
* Fix LoadProhibited (me-no-dev#73)
* Use sizeof instead of strlen for const char[]
* Add Kconfig option to control ASYNC_TCP_SSL_ENABLED
* Optionally include ssl header files
* Add null check for psk_ident and pskey
* Do not default to PSK when root_ca is not explcitly set. tcp_ssl_new_client() has a case to handle this.
* Move psk null checks to top of function, remove unneeded include, syntax cleanup.

Authored-by: Bob <bob.mooij@gmail.com>
@DShabroff

DShabroff commented Mar 31, 2021

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In my Arduino ESP32 I use AsyncTCP library. I get this error exception:

Guru Meditation Error: Core 1 panic'ed (LoadProhibited). Exception was unhandled.
Core 1 register dump:
PC : 0x400d35d8 PS : 0x00060230 A0 : 0x800d366e A1 : 0x3ffb1ef0
A2 : 0x3ffcfb90 A3 : 0x3ffd0a88 A4 : 0x0000002a A5 : 0x3ffcfc2a
A6 : 0x00000a0d A7 : 0x0a0d3439 A8 : 0x800d35e4 A9 : 0x3ffb1ed0
A10 : 0x00000000 A11 : 0x0000002a A12 : 0x0000002a A13 : 0x0000002a
A14 : 0x00000000 A15 : 0x00000000 SAR : 0x0000000a EXCCAUSE: 0x0000001c
EXCVADDR: 0x00000008 LBEG : 0x4000c2e0 LEND : 0x4000c2f6 LCOUNT : 0xffffffff

ELF file SHA256: 0000000000000000

Backtrace: 0x400d35d8:0x3ffb1ef0 0x400d366b:0x3ffb1f10 0x400d3687:0x3ffb1f30 0x400d36dd:0x3ffb1f50 0x400d0d2b:0x3ffb1f80 0x400da3fd:0x3ffb1fb0 0x400897fa:0x3ffb1fd0

I previously worked with ESP8266 using another library: ESPAsyncTCP.h. No such errors were observed. The error causes the processor to reboot. Can you tell me how to avoid such mistakes? Thank you.

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@Bmooij @DShabroff @me-no-dev @bmooij-beeliners