How to enable core dump to flash

nilsro · April 17, 2023, 9:21pm

Hi.

Does anybody know hot to enable core dump to flash within platform io? Should be done in esp-idf with menuconfig but how I can get it active within platform io? Perhaps an enhancement request to arduino-esp32 framework?

https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-guides/core_dump.html#save-core-dump-to-flash

Cheers
Nils

maxgerhardt · April 18, 2023, 7:09pm

You can get into the menuconfig per doc, project tasks.

You need to also use a partition table that has space for the core dump, otherwise you’ll be running into No core dump partition found.

nilsro · April 18, 2023, 11:26pm

Do you have some more detailed infos? I cannot find something there about menuconfig.

But I found info that’s I have to compile arduino ESP32 as component with new setting as the only option but struggle a little how to implement it.

nilsro · April 22, 2023, 8:19pm

Hi,

found this post PlatformIO Support for ESP32 Coredump

and checked the release notes that ESP-IDF v5.0.1 is support. Should core dump to flash still work there?

I tried it with the following easy code after calling esp_core_dump_init(); but no core dump is detected.

github.com

NilsRo/Dehumidifier/blob/f907f6519dd50bc18324ed59b308af4443c8116a/src/main.cpp#L233-L236


      
          if (esp_core_dump_image_check() == ESP_OK)
            s += "Core Dump gefunden";
          else
            s += "kein Core Dump gefunden";

maxgerhardt · April 23, 2023, 10:15am

Did you trigger a crash that would cause a core dump?

Did you set the partitions to be the same?

github.com

NilsRo/Dehumidifier/blob/f907f6519dd50bc18324ed59b308af4443c8116a/platformio.ini#L16-L16


      
          board_build.partitions = partitions.csv

github.com

NilsRo/Dehumidifier/blob/f907f6519dd50bc18324ed59b308af4443c8116a/partitions.csv

# Name,   Type, SubType, Offset,  Size
# Note: if you have increased the bootloader size, make sure to update the offsets to avoid overlap
nvs,      data, nvs,     0x9000,  0x6000
phy_init, data, phy,     0xf000,  0x1000
factory,  app,  factory, 0x10000, 1M
coredump, data, coredump,,        64K

nilsro · May 8, 2023, 9:12pm

Hi,

found a good example from you and added it to my code. The coredump is created correctly, so no issue to create a coredump. But I faced that my ESP32 projects crashing unregularly with interrupt watchdog issues, do you know why they are not results into a coredump? Is this because of the watchdog?

Anyway I solved my issue: during testing I found out that it seems caused by the esphome MqttClient library if wifi quality is poor. Switching to the original maintained repo and newest version fixed it. marvinroger/AsyncMqttClient@^0.9.0 contains an enhancement to queue messages which perhaps correct my problem.

nilsro · May 13, 2023, 6:14am

Ok, the crash is there again but less. No core dump is created with the restart reason: last reset: Software reset due to exception/panic

Any idea how to analyse it best without connecting my laptop for days via USB? Using another ESP32S2 as USB logger?