Serial Monitor swallows my print lines

[ullix]

Any Serial.print*() command does not seem to make it to output when it is preceded by a log_X() command, with X= e, i, d, w, v.

This had been first reported on platformio (platformio/platformio-core#3992 ) but was found to be an arduino-core issue.

This simple script:

#include <Arduino.h>
#include <esp_log.h>

void setup() {
    Serial.begin(115200);
    Serial.println("setup started ###########################################################");

    log_i("%s",  "some text");
    log_i("%s",  "more text");
    log_i("%s",  "even more text");

   // Serial.flush();
    Serial.println("1");
    Serial.println("2");
    Serial.println("3");
    Serial.println("4");
    Serial.println("5");

    log_e("%s",  "but where are my numbers?");
}

void loop() {}

was run on Arduino 1.8.13, Arduino 2.0.0Beta7, and Platformio and produced the same output:

18:35:24.821 > setup started ###########################################################
18:35:24.821 > [I][main.cpp:8] setup(): some text
18:35:24.821 > [I][main.cpp:9] setup(): more text
18:35:24.821 > [I][main.cpp:10] setup(): even more text
18:35:24.821 > [E][main.cpp:18] setup(): but where are my numbers?

However, when the Serial.flush() command was uncommented, then the numbers are printed properly. Again, same result on all 3 systems.

Looks like a bug where log_X and Serial are overwriting each others buffers?

[SuGlider]

Issue solved on PR #5390