esp8266: Crashes on concurrent WebREPL access · Issue #2537 ...
github.com › micropython › micropythonOct 18, 2016 · dupterm: Exception in write() method, deactivating: OSError: [Errno 9] EBADF Fatal exception 28(LoadProhibitedCause): epc1=0x40245962, epc2=0x00000000, epc3=0x00000000, excvaddr=0x00000000, depc=0x00000000. Fatal exception 9(LoadStoreAlignmentCause): epc1=0x40253ad0, epc2=0x00000000, epc3=0x00000000, excvaddr=0x3ffff757, depc=0x00000000