[Pkg-raspi-maintainers] Bug#972386: python3-rpi.gpio: segmentation fault on Raspberry Pi Zero

[Kipp Cannon]

Package: python3-rpi.gpio
Version: 0.6.5-1
Severity: important

Dear Maintainer,

On a Raspberry Pi Zero, the following python script segfaults in the .setup() function:

from RPi import GPIO
GPIO.setmode(GPIO.BCM)
GPIO.setup(20, GPIO.OUT)

I have tried other pins and the behaviour is the same.  I do not have easy access to any other versions of the hardware to check if the problem is unique to the Pi Zero, but if what I am seeing is the same as described in this thread here

https://stackoverflow.com/questions/30442719/getting-segmentation-fault-when-using-rpi-gpio-setup-on-raspberry-pi-2

then it might be a problem that only affects some hardware versions.  The comment that seems most useful in that thread is

"The segfault went away and my C program worked. RPi.GPIO defines BCM2708_PERI_BASE_DEFAULT to 0x20000000 (Pi 1) instead of 0x3f000000 (Pi 2). It tries to adjust it reading /proc/device-tree/soc/ranges but this kernel didn't have device tree enabled. ..."

I don't know if that rings any bells.

-- System Information:
Debian Release: 10.6
  APT prefers stable
  APT policy: (500, 'stable')
Architecture: armel (armv6l)

Kernel: Linux 4.19.0-11-rpi
Kernel taint flags: TAINT_CRAP
Locale: LANG=C, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE=C (charmap=UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages python3-rpi.gpio depends on:
ii  libc6            2.28-10
ii  python3          3.7.3-1
ii  rpi.gpio-common  0.6.5-1

python3-rpi.gpio recommends no packages.

python3-rpi.gpio suggests no packages.

-- no debconf information