Getting a Kernel panic when trying to use it with EzTime library

[witnessmenow]

More info to follow

[tablatronix]

I have traced these panics to using a timer or ISR and doing too much inside it.
Post anything different if you see it

[witnessmenow]

Will try out your changes on the Matrix panel when I get a change

[ROSW6341]

I do not know the underlying cause but I was able to circumvent the problem by copying core_esp_main.cpp from
C:\Users<USER>\AppData\Local\arduino15\packages\esp8266\hardware\esp8266\2.5.2\cores\esp8266
into the sketch directory then commenting out the 'panic()' on line 103 of the copied file.

[tablatronix]

Yeah its strange because it is specifically calling panic exception because of the 'in interrupt' check, not sure what the other 2 checks are. Its odd

afaik , this is not in an interrupt

[witnessmenow]

Someone has a workaround for this on the WiFi Tetris clock repo witnessmenow/WiFi-Tetris-Clock#8

…

On Fri, 26 Jul 2019, 20:22 Shawn A, ***@***.***> wrote: Yeah its strange because it is specifically calling panic exception because of the 'in interrupt' check, not sure what the other 2 checks are. Its odd — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#3?email_source=notifications&email_token=AAL5PQTTVAGI5F67IZXQWU3QBNFILA5CNFSM4HRYMVC2YY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOD25PXZQ#issuecomment-515570662>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAL5PQXYCEK47ENTKVYBAZTQBNFILANCNFSM4HRYMVCQ> .

[ROSW6341]

Worked for me and much cleaner than the core_esp_main.cpp hack I posted above

[tablatronix]

That is what I did also, but it did still wdt now and then during long draws, but it is probably the easiest fix. Of course you can just not use a timer or use a timer library that just uses timekeeping and a process()

[tablatronix]

Is it possible to compile with no-exceptions build flag and bypass this also ?

[tablatronix]

aha

esp8266/Arduino#6283