os-autoinst / openQA / 3035

100%

Pull #802

travis-ci

Kill worker process group when not reactive on shutdown

Fixes issues e.g. when cancelling s390x jobs from the WebUI. The root cause is
probably within the backend depending on the subprocesses that are needed
there but this is a working remedy from one level higher. Killing the
subprocess group is safe as all processes are torn down and the worker even
uploads logs in this case.

Example log output:

```
received command: cancelstop_job cancel
killing 28395
(waiting for 40 seconds)
sending KILL signal to everyone in the child process group
stop_job 2nd half
uploading video.ogv
uploading vars.json
uploading serial0.txt
uploading autoinst-log.txt
setting job 2333 to incomplete (cancel)
```

Related progress issue: https://progress.opensuse.org/issues/12178

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