Bug#792777: fails to send email on failure; falls over on circle at start of systemctl status

[Jörg Sommer]

On Sat, 18 Jul 2015 15:25:06 +0200 Alexandre Detiste <alexandre.detiste at gmail.com> wrote:
> control: tag -1 moreinfo
> 
> Hi,
> 
> I can't find the correct environnement needed to reproduce this bug.

I'm having the same problem. This is the environment of the script
`mail_on_failure` when called from *systemd*

```
USER=nobody
HOME=/nonexistent
LOGNAME=nobody
JOURNAL_STREAM=8:15023569
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
INVOCATION_ID=8f1cf292d7024ede9aa1cb66dc58bef4
PWD=/
```

With this I can reproduce the error:

```
# env -i $(</tmp/mail_on_failure.27550.log) /lib/systemd-cron/mail_on_failure cron-kernel-root-0
Traceback (most recent call last):
  File "/lib/systemd-cron/mail_on_failure", line 51, in <module>
    systemctl = subprocess.check_output(['systemctl','status',job], universal_newlines=True)
  File "/usr/lib/python3.5/subprocess.py", line 316, in check_output
    **kwargs).stdout
  File "/usr/lib/python3.5/subprocess.py", line 385, in run
    stdout, stderr = process.communicate(input, timeout=timeout)
  File "/usr/lib/python3.5/subprocess.py", line 788, in communicate
    stdout = self.stdout.read()
  File "/usr/lib/python3.5/encodings/ascii.py", line 26, in decode
    return codecs.ascii_decode(input, self.errors)[0]
UnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 0: ordinal not in range(128)
```

```
# cat /etc/debian_version
9.5
# dpkg -l systemd systemd-sysv init-system-helpers python3
ii  init-system-helpers               1.48
ii  python3                           3.5.3-1
ii  systemd                           232-25+deb9u4
ii  systemd-sysv                      232-25+deb9u4
```

Bye Jörg
-- 
Leben – es gibt nichts Selteneres auf der Welt. Die meisten Menschen
existieren, weiter nichts.
               (Oscar Wilde: Der Sozialismus und die Seele des Menschen)
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