Arduino-esp32: Proposal: exceptions should reboot instead of halting the CPU by default

Created on 22 Jul 2017 · 8Comments · Source: espressif/arduino-esp32

CPU exceptions (a.k.a. Guru Meditation Errors :-D ) now halt the cpu, instead of triggering a reboot. There seems to be a way to configure that, but that requires recompilation of ESP-IDF (ESP32_PANIC_PRINT_REBOOT/ESP32_PANIC_PRINT_HALT/ESP32_PANIC_SILENT_REBOOT/ESP32_PANIC_GDBSTUB) and copying over the libesp32.a file to the Arduino tree by hand.

IMHO the default behaviour should be to reboot instead of halting the CPU, because in production systems this will be the only sensible thing to do. But I dunno what other people think about it. Maybe it's only me.

Source

everslick

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Most helpful comment

This is now the default behaviour.

lonerzzz on 15 Aug 2017

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AFAIK, there are already some other fixes pending in ESP-IDF, so maybe this could be slipped into the next sync with upstream as well?

everslick on 22 Jul 2017

@everslick Have you raised this with the esp32 project? I agree that choosing how to handle these situations would make sense and allowing autoreboot makes sense, but with that project might be the better place to raise the issue. If it was configured, then this project could add an Arduino wrapper to it.

lonerzzz on 24 Jul 2017

@everslick This seems to be in place with the latest code using the updated IDF base version. Please test your use case so we know if work needs to be done.

lonerzzz on 3 Aug 2017

you know this is already set and will be in the next release, right? :)

me-no-dev on 3 Aug 2017

Thanks @me-no-dev. yes I read your comment on Gitter, that the change is
pending.

everslick on 3 Aug 2017

@me-no-dev I am seeing something of this functionality now. In sample code I created to help with another issue, the CPU halts turned into resets after upgrading to the latest code Aug. 1st.

lonerzzz on 3 Aug 2017

This is now the default behaviour.

lonerzzz on 15 Aug 2017

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Anybody can help me ? I get rare random crashes in my project. It is at a point where I am happy with it and would just like it to reboot when it has a core panic but it just hangs. I have the latest version of arduino-esp32 and have kept up to date but seem to not have the same behavior has expected ?

my code : https://github.com/sansillusion/LampeMeteo