Bug#916749: systemd-cron: Tries to launch unreachable commands

[Erwan David]

Package: systemd-cron
Version: 1.5.14-2
Severity: important

Dear Maintainer,

*** Reporter, please consider answering these questions, where appropriate ***

   * What led up to the situation?
   * What exactly did you do (or not do) that was effective (or
     ineffective)?
   * What was the outcome of this action?
   * What outcome did you expect instead?

*** End of the template - remove these template lines ***

I just switched from cron to systemd cron. I now have every 5 mintes following email :

* cron-dma-root-0.service - [Cron] "*/5 * * * * root [ -x /usr/sbin/dma ] && /usr/sbin/dma -q1"
   Loaded: loaded (/etc/cron.d/dma; generated)
   Active: failed (Result: exit-code) since Tue 2018-12-18 09:10:03 CET; 74ms ago
     Docs: man:systemd-crontab-generator(8)
  Process: 8569 ExecStart=/bin/sh /run/systemd/generator/cron-dma-root-0.sh (code=exited, status=1/FAILURE)
 Main PID: 8569 (code=exited, status=1/FAILURE)

Dec 18 09:10:03 ot-fixe-008 systemd[1]: Starting [Cron] "*/5 * * * * root [ -x /usr/sbin/dma ] && /usr/sbin/dma -q1"...
Dec 18 09:10:03 ot-fixe-008 systemd[1]: cron-dma-root-0.service: Main process exited, code=exited, status=1/FAILURE
Dec 18 09:10:03 ot-fixe-008 systemd[1]: cron-dma-root-0.service: Failed with result 'exit-code'.
Dec 18 09:10:03 ot-fixe-008 systemd[1]: Failed to start [Cron] "*/5 * * * * root [ -x /usr/sbin/dma ] && /usr/sbin/dma -q1".
Dec 18 09:10:03 ot-fixe-008 systemd[1]: cron-dma-root-0.service: Triggering OnFailure= dependencies.

/usr/sbin/dma does not exist, thus the action should not be executed.


-- Package-specific info:
-- output of systemd-delta

-- System Information:
Debian Release: buster/sid
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'stable-updates'), (500, 'stable'), (300, 'unstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.18.0-3-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE= (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages systemd-cron depends on:
ii  libc6         2.28-2
ii  python3       3.6.7-1
ii  systemd-sysv  239-15

Versions of packages systemd-cron recommends:
ii  postfix [mail-transport-agent]  3.3.2-1

systemd-cron suggests no packages.

-- Configuration Files:
/etc/anacrontab changed:
SHELL=/bin/sh
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
HOME=/root
LOGNAME=root
START_HOURS_RANGE=4-6
1	5	cron.daily	run-parts --report /etc/cron.daily
7	10	cron.weekly	run-parts --report /etc/cron.weekly
@monthly	15	cron.monthly	run-parts --report /etc/cron.monthly


-- no debconf information