MG
fileData = {int8_t * | 0x7e51800000} 0x0000007e51800000
*fileData = {int8_t} 0 '\0'
fileDataIndexEnd = {size_t} 4123223
and after the call
fileData = {int8_t * | 0xdec183b0d8818f6} 0x0dec183b0d8818f6
error = read memory from 0xdec183b0d8818f6 failed (0 of 1 bytes read)
fileDataIndexEnd = {size_t} 1003487218810951855