QA » openQA Project

While using the generalhw backend, I noticed that GENERAL_HW_POWEROFF_CMD is broken with bash scripts, if started from openQA only.
If I start isotovideo manually (out of openQA), with my own user, or geekotest or _openqa-worker users, with the same vars.json file, it does work properly.
The error message is:

[2020-01-23T11:51:34.079 UTC] [debug] run_cmd: /var/lib/openqa/share/tests/opensuse/data/generalhw_scripts/power_off_tenma.sh
[2020-01-23T11:51:34.128 UTC] [debug] Backend process died, backend errors are reported below in the following lines:
exec failed: Permission denied at /usr/lib/os-autoinst/backend/generalhw.pm line 67.
at /usr/lib/os-autoinst/backend/generalhw.pm line 67.
at /usr/lib/os-autoinst/backend/generalhw.pm line 67.

The related code is at: https://github.com/os-autoinst/os-autoinst/blob/master/backend/generalhw.pm#L65

If I use an executable (tested /usr/bin/ls), there is no problem.

I guess openQA context is different, but I have no clue how to fix this properly.