SD Card access causes crash in development branch, but not in release branch (CAUSED BY WATCHDOG - see below) about tasmota HOT 6 CLOSED

FYI any exception with Reason unknown is likely caused by watchdogs enabled recently in dev branch.

To stop chasing windmills I suggest you disable the watchdog feature and continue with what you want to do.

EDIT: Add this #undef USE_ESP32_WDT to your user_config_override.h

from tasmota.

The reason why the WDT is enabled is to find code parts which blocks Tasmota (way too long). Goal is to change long blocking code in "normal" working code.

from tasmota.

you are of course correct. adding this to user_config_override.h, and rebuilding for my esp32cam, it's listed 430+ files so far (better than 45).
We could probably do with having a configuration to turn it off. There are always going to be odd circumstances which can't be tested for and so be accounted for with calls to tickle the watchdog. At least then we could continue to use the 'current' version whilst a strange issue is mitigated in some other way without a rebuild.

from tasmota.

it dies in a different way now.... no crash log on the serial, just hangs with no network access, and serial logs turned themselves off... but then I'm giving it hell, so I'm not surprised.

from tasmota.

re-opening - the watchdog triggers in the reproduction above because of listing a very large folder, and so hanging the main loop - which we could solve with some yield(). But with further testing any SD access can cause a main loop hang.
I will do some further investigation, and come up with another reproduction; maybe some Berry that will cause it.
It seems fine on my S3 board, but not on a 'normal' esp32cam board. I will also re-test dev vs release.

Edit - a self-build release build stalls main loop - first time at first file download. 2nd time after 471 file downloads.

from tasmota.

I think a bug in the UFSServe function. Possibly streaming direct from file to socket is not a good idea...
After more testing, I'll PR, and include in the PR a fix for listing large folders with Watchdog on (the original reproduction code).

from tasmota.