pystack exhausted

[jerryneedell]

I tried running the adafruit_io example adafruit_io_http/adafruit_io_simpletest.py under the current main for 6.0.0-alpha2 and it fails with this error
This runs normally with CP 5.3.1

Is this a CP issue or does something have to be changed in the adafruit_io libraries?

the esp32spi_simpletest works OK under CP 6.0.0-alpha2

Press any key to enter the REPL. Use CTRL-D to reload.
Adafruit CircuitPython 6.0.0-alpha.2-43-g7ab5c520e on 2020-07-26; Adafruit Metro M4 Airlift Lite with samd51j19
>>> import temp_hum
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "temp_hum.py", line 63, in <module>
  File "temp_hum.py", line 60, in <module>
  File "adafruit_io/adafruit_io.py", line 635, in get_feed
  File "adafruit_io/adafruit_io.py", line 532, in _get
  File "adafruit_esp32spi/adafruit_esp32spi_wifimanager.py", line 202, in get
  File "adafruit_requests.py", line 291, in get
  File "adafruit_requests.py", line 251, in request
  File "adafruit_requests.py", line 192, in request
  File "adafruit_esp32spi/adafruit_esp32spi_socket.py", line 75, in connect
  File "adafruit_esp32spi/adafruit_esp32spi.py", line 752, in socket_connect
  File "adafruit_esp32spi/adafruit_esp32spi.py", line 651, in socket_open
  File "adafruit_esp32spi/adafruit_esp32spi.py", line 324, in _send_command_get_response
  File "adafruit_esp32spi/adafruit_esp32spi.py", line 232, in _send_command
RuntimeError: pystack exhausted
>>> 

for reference code is here

"""
Example of sending temperature
values to an Adafruit IO feed.

"""
import time
import board
import busio
from digitalio import DigitalInOut

# ESP32 SPI
from adafruit_esp32spi import adafruit_esp32spi, adafruit_esp32spi_wifimanager

# Import NeoPixel Library
import neopixel

# Import Adafruit IO HTTP Client
from adafruit_io.adafruit_io import IO_HTTP, AdafruitIO_RequestError

# Import aht7410 Library
import adafruit_ahtx0

# Get wifi details and more from a secrets.py file
try:
    from secrets import secrets
except ImportError:
    print("WiFi secrets are kept in secrets.py, please add them there!")
    raise

# ESP32 Setup
try:
    esp32_cs = DigitalInOut(board.ESP_CS)
    esp32_ready = DigitalInOut(board.ESP_BUSY)
    esp32_reset = DigitalInOut(board.ESP_RESET)
except AttributeError:
    esp32_cs = DigitalInOut(board.D9)
    esp32_ready = DigitalInOut(board.D10)
    esp32_reset = DigitalInOut(board.D5)

spi = busio.SPI(board.SCK, board.MOSI, board.MISO)
esp = adafruit_esp32spi.ESP_SPIcontrol(spi, esp32_cs, esp32_ready, esp32_reset)
status_light = neopixel.NeoPixel(
    board.NEOPIXEL, 1, brightness=0.2
)  # Uncomment for Most Boards
"""Uncomment below for ItsyBitsy M4"""
# status_light = dotstar.DotStar(board.APA102_SCK, board.APA102_MOSI, 1, brightness=0.2)
wifi = adafruit_esp32spi_wifimanager.ESPSPI_WiFiManager(esp, secrets, status_light)

# Set your Adafruit IO Username and Key in secrets.py
# (visit io.adafruit.com if you need to create an account,
# or if you need your Adafruit IO key.)
aio_username = secrets["aio_username"]
aio_key = secrets["aio_key"]

# Create an instance of the Adafruit IO HTTP client
io = IO_HTTP(aio_username, aio_key, wifi)

try:
    # Get the 'temperature' feed from Adafruit IO
    temperature_feed = io.get_feed("aht20-temperature")
except AdafruitIO_RequestError:
    # If no 'temperature' feed exists, create one
    temperature_feed = io.create_new_feed("aht20-temperature")

# Set up ahtx0 sensor
aht = adafruit_ahtx0.AHTx0(board.I2C())

while True:
    try:
        temperature = aht.temperature * 9.0/5.0 + 32.0
        # set temperature value to two precision points
        temperature = "%0.2f" % (temperature)

        print("Current Temperature: {0}*C".format(temperature))
        print("Sending to Adafruit IO...")
        io.send_data(temperature_feed["key"], temperature)
        print("Data sent!")
    except (ValueError, RuntimeError) as e:
        print("Failed to get data, retrying\n", e)
        wifi.reset()
        continue
    time.sleep(0.5)

[jerryneedell]

If I double the size of the pystack it works

diff --git a/py/circuitpy_mpconfig.h b/py/circuitpy_mpconfig.h
index a1a7ec238..768e05af1 100644
--- a/py/circuitpy_mpconfig.h
+++ b/py/circuitpy_mpconfig.h
@@ -799,7 +799,7 @@ void supervisor_run_background_tasks_if_tick(void);
 #endif
 
 #ifndef CIRCUITPY_PYSTACK_SIZE
-#define CIRCUITPY_PYSTACK_SIZE 1024
+#define CIRCUITPY_PYSTACK_SIZE 2048
 #endif
 
 #define CIRCUITPY_BOOT_OUTPUT_FILE "/boot_out.txt"