Backtrace strange behavior

seaduck13
Posts: 3
Joined: Tue Aug 01, 2017 5:28 pm

Backtrace strange behavior

Postby seaduck13 » Tue Aug 01, 2017 5:34 pm

Hello, I am currently trying to use the ESP32 to run a small HTTP server while running a WiFi AP. The system uses SPIFFS to access a small 16Mb SPI flash. I've been able to display pages on my main system browser over WiFi perfectly fine. For some reason though, when one page is called and it triggers a function in my system, I get the following output and a crash.

loopTask has▒ up
Guru Meditation Error: Core 1 panic'ed (abort)
▒▒!▒?40085f89▒!▒?0000fffflanguage up
|7▒?halted.

There have been a few variation on this depending on where the crash occurs, but it always occurs on a SPIFFS open of a file. Other than here, SPIFFS seems to be working fine. I open files, write to them, close them, etc. without issue. I'm guessing that the information above is a mangled backtrace , but I can't tell why it's occurring and only on SPIFFS work. Is this a result of the memory all being used before? I can't imagine why that would occur, when I've opened files in other more complicated sections of code without issue.

ESP_Sprite
Posts: 9708
Joined: Thu Nov 26, 2015 4:08 am

Re: Backtrace strange behavior

Postby ESP_Sprite » Wed Aug 02, 2017 9:01 am

That looks pretty corrupted. What devboard do you have and what power supply do you use?

seaduck13
Posts: 3
Joined: Tue Aug 01, 2017 5:28 pm

Re: Backtrace strange behavior

Postby seaduck13 » Wed Aug 02, 2017 1:11 pm

I am currently using the Wroom32 Dev kit C with the USB power/serial cable.

ESP_Sprite
Posts: 9708
Joined: Thu Nov 26, 2015 4:08 am

Re: Backtrace strange behavior

Postby ESP_Sprite » Thu Aug 03, 2017 7:32 am

Hmm, given a good USB cable, that should be fine. Sorry, then I don't know, possibly something weird in the inner workings of SPIFFS that corrupts UART code somehow.

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