getting " stack smashing detected" when using pyA20lime2 SPI read() function

[frm]

Hi,
I have enabled SPI #2 of my Olimex. I can successfully transmit data toward my slave device (I can see it receives data using a debugger attached to the slave).
This is the testing python script I'm using:


#!/usr/bin/env python

from pyA20Lime2 import spi
import time
spi.open("/dev/spidev2.0", mode=0, delay=0, bits_per_word=8, speed=10000)
while True:
                print "WRITING BYTES 1, 2, 3"
                spi.write([0x01, 0x02, 0x03]) #Write 3 bytes to slave device
                print "READING 16 BYTES"
                tmp = spi.read(16)     # if this is enabled, PYthon crashes
                print tmp
                time.sleep(0.1)

However when I enable to use the read() function I get:

root@lime2:~# ./lime2_spi.py
WRITING BYTES 1, 2, 3
READING 16 BYTES
*** stack smashing detected ***: python terminated
Aborted


What I'm doing wrong?

[LubOlimex]

Olimex-made Python PyPi packages are no longer maintained and don't work well with latest Olimage Linux images. If you are interested in Python use one of the generic SPI ones:

https://pypi.org/project/spidev/

or maybe try:

https://github.com/cpb-/spi-tools

Of course, you can just use the standard SPI support that is built-in the latest images.