attachInterrupt() cannot be called with interrupts disabled

[tkem]

Board

NodeMCU-32S

Device Description

ESP32 NodeMCU Development Board
https://www.berrybase.at/esp32-nodemcu-development-board

Hardware Configuration

No.

Version

v2.0.6

IDE Name

Arduino IDE 2.0.3

Operating System

Debian GNU/Linux

Flash frequency

40MHz

PSRAM enabled

yes

Upload speed

115200

Description

I prefer to set up interrupts (on Arduino via attachInterrupt()) with interrupts disabled, to avoid race conditions, e.g.

noInterrupts();
// some code
attachInterrupt(digitalPinToInterrupt(pin), &irq, CHANGE);
// some more code
interrupts();

This works well on all Arduino boards I've encountered so far (AVR, ESP8266, Raspberry Pi Pico), but on my ESP32 board this results in a "Guru Meditation Error". See below.

I've checked existing issues and found #7211, but I think this addresses a different problem. Calling attachInterrupt() while interrupts are disabled is a valid use case, IMHO, at least if the surrounding code is minimal.

Sketch

int pin = 2;

void IRAM_ATTR irq()
{
  // intentionally left blank
}

void setup() {
  Serial.begin(9600);
  Serial.println("Setup interrupts");
  noInterrupts();
  attachInterrupt(digitalPinToInterrupt(pin), &irq, CHANGE);
  interrupts();
  Serial.println("Done setup interrupts");
}

void loop() {
  Serial.println("Hello world");
  delay(1000);
}

Debug Message

20:31:48.187 -> Setup interrupts
20:31:48.509 -> Guru Meditation Error: Core  1 panic'ed (Interrupt wdt timeout on CPU1). 
20:31:48.573 -> 
20:31:48.573 -> Core  1 register dump:
20:31:48.605 -> PC      : 0x4008aa56  PS      : 0x00060a35  A0      : 0x800899ce  A1      : 0x3ffb2650  
20:31:48.702 -> A2      : 0x3ffb7d18  A3      : 0x3ffb8890  A4      : 0x00000004  A5      : 0x00060a23  
20:31:48.798 -> A6      : 0x00060a23  A7      : 0x00000001  A8      : 0x3ffb8890  A9      : 0x00000018  
20:31:48.894 -> A10     : 0x3ffb8890  A11     : 0x00000018  A12     : 0x3ffc2a54  A13     : 0x00060a23  
20:31:48.990 -> A14     : 0x007bf2f8  A15     : 0x003fffff  SAR     : 0x00000002  EXCCAUSE: 0x00000006  
20:31:49.055 -> EXCVADDR: 0x00000000  LBEG    : 0x40085f24  LEND    : 0x40085f2f  LCOUNT  : 0x00000000  
20:31:49.150 -> 
20:31:49.150 -> 
20:31:49.182 -> Backtrace: 0x4008aa53:0x3ffb2650 0x400899cb:0x3ffb2670 0x40088d56:0x3ffb2690 0x400dddce:0x3ffb26d0 0x400ddecd:0x3ffb2700 0x400d3139:0x3ffb2720 0x400d31d6:0x3ffb2770 0x400d1b85:0x3ffb27a0 0x400d1bdd:0x3ffb27d0 0x400d133b:0x3ffb27f0 0x400d24ca:0x3ffb2820
20:31:49.438 -> 
20:31:49.438 -> 
20:31:49.438 -> Core  0 register dump:
20:31:49.471 -> PC      : 0x4008abeb  PS      : 0�

Other Steps to Reproduce

No response

I have checked existing issues, online documentation and the Troubleshooting Guide

• I confirm I have checked existing issues, online documentation and Troubleshooting guide.

[mrengineer7777]

Replicated crash. Confirmed.

17:41:55.627 > Backtrace: 0x40089ef3:0x3ffb2670 0x40089477:0x3ffb2690 0x4008882e:0x3ffb26b0 0x400da746:0x3ffb26f0 0x400da831:0x3ffb2720 0x400d25fe:0x3ffb2740 0x400d264d:0x3ffb2780 0x400d14cc:0x3ffb27a0 0x400d15a5:0x3ffb27d0 0x400d0b93:0x3ffb27f0 0x400d1c0a:0x3ffb2820
=> 0x40089ef3: vListInsert at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/freertos/list.c:183
=> 0x40089477: vTaskPlaceOnEventList at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/freertos/tasks.c:3566
=> 0x4008882e: xQueueSemaphoreTake at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/freertos/queue.c:1688
=> 0x400da746: esp_ipc_call_and_wait at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/esp_ipc/src/esp_ipc.c:147
=> 0x400da831: esp_ipc_call_and_wait at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/esp_ipc/src/esp_ipc.c:125
      (inlined by) esp_ipc_call_blocking at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/esp_ipc/src/esp_ipc.c:163
=> 0x400d25fe: gpio_isr_register at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/driver/gpio.c:539
=> 0x400d264d: gpio_install_isr_service at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/driver/gpio.c:457
=> 0x400d14cc: __attachInterruptFunctionalArg at C:/Users/User/.platformio/packages/framework-arduinoespressif32/cores/esp32/esp32-hal-gpio.c:171
=> 0x400d15a5: __attachInterrupt at C:/Users/User/.platformio/packages/framework-arduinoespressif32/cores/esp32/esp32-hal-gpio.c:208
=> 0x400d0b93: setup() at src/main.cpp:148 (discriminator 4)
=> 0x400d1c0a: loopTask(void*) at C:/Users/User/.platformio/packages/framework-arduinoespressif32/cores/esp32/main.cpp:42

The crash appears to occur in gpio_install_isr_service(), which is an IDF function. Specifically: https://github.com/espressif/esp-idf/blob/bb25d6abd3398d0f06fb09fdc9935b791f9344ff/components/driver/gpio/gpio.c#L565.

I'm guessing it's a deadlock caused by attempting to take a Semaphore while interrupts are off. To resolve the issue you'll likely need to open an issue on the IDF repository. https://github.com/espressif/esp-idf/issues

You may also in interested in: espressif/esp-idf#9746

[P-R-O-C-H-Y]

Hello @tkem, did you take any action and opened issue on ESP-IDF repository?

[Parsaabasi]

Hello,

Due to the overwhelming volume of issues currently being addressed, we have decided to close the previously received tickets. If you still require assistance or if the issue persists, please don't hesitate to reopen the ticket.

Thanks.