watchdog triggered in WiFi mode with SD card

sudomesh / disaster-radio

A (paused) work-in-progress long-range, low-bandwidth wireless disaster recovery mesh network powered by the sun.

https://disaster.radio

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watchdog triggered in WiFi mode with SD card #99

Open grisu48 opened 3 years ago

grisu48 commented 3 years ago

Hey there,

While in Wifi mode (as client) with attached SD card and the compiled web-app, the node resets itself. In the serial terminal I get the following output

task_wdt: Task watchdog got triggered. The following tasks did not reset the watchdog in time:
E (18440) task_wdt:  - async_tcp (CPU 0/1)
E (18440) task_wdt: Tasks currently running:
E (18440) task_wdt: CPU 0: IDLE0
E (18440) task_wdt: CPU 1: loopTask
E (18440) task_wdt: Aborting.

This looks like a timeout issue. Without SD card the node works just fine.

paidforby commented 3 years ago

Interesting, it looks like your TCP request is taking too long. I have not tested the SD card functionality in a long time, it's possible changes to the routing protocol or console have introduced some condition in which the watchgod times out during slow web requests.

A possible solution could be to upgrade to the latest AsynceTCP library, I bet we are using a very old version of that.

paidforby commented 3 years ago

Actually, we aren't even using a tagged release or a specific commit of AsyncTCP, which is bad. Reverting to a old commit of that library will probably fix this bug.