On 2026-04-13 12:22:23 +0200, Jean-Marc wrote:
> Upgrading anacron:amd64 from 2.3-47 to 2.3-48 today on my Debian sid without
> any issue or nor freeze.
> 
> I used apt and not aptitude.

I've just upgraded anacron:amd64 from 2.3-47 to 2.3-48 on another
machine with aptitude, and there were no issues. But I did not get

  Will run job `cron.daily' in 5 min.
  Will run job `cron.weekly' in 10 min.

in the journalctl output. Just the following:

Apr 13 12:43:25 cventin systemd[1]: Starting anacron.service - Run anacron 
jobs...
Apr 13 12:43:25 cventin systemd[1]: anacron.timer: Deactivated successfully.
Apr 13 12:43:25 cventin systemd[1]: Stopped anacron.timer - Trigger anacron 
every hour.
Apr 13 12:43:25 cventin systemd[1]: Stopping anacron.timer - Trigger anacron 
every hour...
Apr 13 12:43:25 cventin systemd[1]: Started anacron.timer - Trigger anacron 
every hour.
Apr 13 12:43:25 cventin anacron[317825]: Anacron 2.3 started on 2026-04-13
Apr 13 12:43:25 cventin anacron[317825]: Normal exit (0 jobs run)
Apr 13 12:43:25 cventin systemd[1]: anacron.service: Deactivated successfully.
Apr 13 12:43:25 cventin systemd[1]: Finished anacron.service - Run anacron jobs.

Actually I think that there were no reasons to run the above jobs
on the other machine. I had (the first two concern both cron.daily
and cron.weekly):

Mar 29 07:31:14 qaa systemd[1]: Started anacron.service - Run anacron jobs.
Mar 29 07:31:14 qaa anacron[838830]: Anacron 2.3 started on 2026-03-29
Mar 29 07:31:14 qaa anacron[838830]: Will run job `cron.daily' in 5 min.
Mar 29 07:31:14 qaa anacron[838830]: Will run job `cron.weekly' in 10 min.
Mar 29 07:31:14 qaa anacron[838830]: Jobs will be executed sequentially
Mar 29 07:36:14 qaa anacron[838830]: Job `cron.daily' started
Mar 29 07:36:14 qaa anacron[839037]: Updated timestamp for job `cron.daily' to 
2026-03-29
Mar 29 07:36:14 qaa anacron[838830]: Job `cron.daily' terminated
Mar 29 07:41:14 qaa anacron[838830]: Job `cron.weekly' started
Mar 29 07:41:14 qaa anacron[839273]: Updated timestamp for job `cron.weekly' to 
2026-03-29
Mar 29 07:41:14 qaa anacron[838830]: Job `cron.weekly' terminated
Mar 29 07:41:14 qaa anacron[838830]: Normal exit (2 jobs run)
Mar 29 07:41:14 qaa systemd[1]: anacron.service: Deactivated successfully.
Mar 29 07:41:14 qaa systemd[1]: anacron.service: Consumed 585ms CPU time over 
10min 60ms wall clock time, 159.3M memory peak.

Apr 05 07:31:57 qaa systemd[1]: Started anacron.service - Run anacron jobs.
Apr 05 07:31:57 qaa anacron[1629332]: Anacron 2.3 started on 2026-04-05
Apr 05 07:31:57 qaa anacron[1629332]: Will run job `cron.daily' in 5 min.
Apr 05 07:31:57 qaa anacron[1629332]: Will run job `cron.weekly' in 10 min.
Apr 05 07:31:57 qaa anacron[1629332]: Jobs will be executed sequentially
Apr 05 07:36:57 qaa anacron[1629332]: Job `cron.daily' started
Apr 05 07:36:57 qaa anacron[1629501]: Updated timestamp for job `cron.daily' to 
2026-04-05
Apr 05 07:36:58 qaa anacron[1629332]: Job `cron.daily' terminated
Apr 05 07:41:57 qaa anacron[1629332]: Job `cron.weekly' started
Apr 05 07:41:57 qaa anacron[1629706]: Updated timestamp for job `cron.weekly' 
to 2026-04-05
Apr 05 07:41:57 qaa systemd[1]: anacron.service: Deactivated successfully.
Apr 05 07:41:57 qaa anacron[1629332]: Job `cron.weekly' terminated
Apr 05 07:41:57 qaa anacron[1629332]: Normal exit (2 jobs run)
Apr 05 07:41:57 qaa systemd[1]: anacron.service: Consumed 611ms CPU time over 
10min 44ms wall clock time, 157.9M memory peak.

Apr 10 07:32:46 qaa systemd[1]: Started anacron.service - Run anacron jobs.
Apr 10 07:32:46 qaa anacron[144869]: Anacron 2.3 started on 2026-04-10
Apr 10 07:32:46 qaa anacron[144869]: Will run job `cron.daily' in 5 min.
Apr 10 07:32:46 qaa anacron[144869]: Jobs will be executed sequentially
Apr 10 07:37:46 qaa anacron[144869]: Job `cron.daily' started
Apr 10 07:37:46 qaa anacron[145040]: Updated timestamp for job `cron.daily' to 
2026-04-10
Apr 10 07:37:47 qaa anacron[144869]: Job `cron.daily' terminated
Apr 10 07:37:47 qaa anacron[144869]: Normal exit (1 job run)
Apr 10 07:37:47 qaa systemd[1]: anacron.service: Deactivated successfully.
Apr 10 07:37:47 qaa systemd[1]: anacron.service: Consumed 793ms CPU time over 
5min 997ms wall clock time, 113.3M memory peak.

Apr 11 07:31:00 qaa systemd[1]: Started anacron.service - Run anacron jobs.
Apr 11 07:31:00 qaa anacron[602952]: Anacron 2.3 started on 2026-04-11
Apr 11 07:31:00 qaa anacron[602952]: Will run job `cron.daily' in 5 min.
Apr 11 07:31:00 qaa anacron[602952]: Jobs will be executed sequentially
Apr 11 07:36:00 qaa anacron[602952]: Job `cron.daily' started
Apr 11 07:36:00 qaa anacron[603137]: Updated timestamp for job `cron.daily' to 
2026-04-11
Apr 11 07:36:00 qaa anacron[602952]: Job `cron.daily' terminated
Apr 11 07:36:00 qaa anacron[602952]: Normal exit (1 job run)
Apr 11 07:36:00 qaa systemd[1]: anacron.service: Deactivated successfully.
Apr 11 07:36:00 qaa systemd[1]: anacron.service: Consumed 531ms CPU time over 
5min 544ms wall clock time, 83.1M memory peak.

[When I upgraded anacron...]
Apr 12 01:04:01 qaa systemd[1]: Starting anacron.service - Run anacron jobs...
Apr 12 01:04:01 qaa systemd[1]: anacron.timer: Deactivated successfully.
Apr 12 01:04:01 qaa systemd[1]: Stopped anacron.timer - Trigger anacron every 
hour.
Apr 12 01:04:01 qaa systemd[1]: Stopping anacron.timer - Trigger anacron every 
hour...
Apr 12 01:04:01 qaa systemd[1]: Started anacron.timer - Trigger anacron every 
hour.
Apr 12 01:04:01 qaa anacron[667802]: Anacron 2.3 started on 2026-04-12
Apr 12 01:04:01 qaa anacron[667802]: Will run job `cron.daily' in 5 min.
Apr 12 01:04:01 qaa anacron[667802]: Will run job `cron.weekly' in 10 min.
Apr 12 01:04:01 qaa anacron[667802]: Jobs will be executed sequentially
Apr 12 01:09:01 qaa anacron[667802]: Job `cron.daily' started
Apr 12 01:09:01 qaa anacron[668761]: Updated timestamp for job `cron.daily' to 
2026-04-12
Apr 12 01:09:02 qaa anacron[667802]: Job `cron.daily' terminated
Apr 12 01:14:01 qaa anacron[667802]: Job `cron.weekly' started
Apr 12 01:14:01 qaa anacron[669372]: Updated timestamp for job `cron.weekly' to 
2026-04-12
Apr 12 01:14:01 qaa anacron[667802]: Job `cron.weekly' terminated
Apr 12 01:14:01 qaa anacron[667802]: Normal exit (2 jobs run)
Apr 12 01:14:01 qaa systemd[1]: anacron.service: Deactivated successfully.
Apr 12 01:14:01 qaa systemd[1]: Finished anacron.service - Run anacron jobs.
Apr 12 01:14:01 qaa systemd[1]: anacron.service: Consumed 746ms CPU time over 
10min 34ms wall clock time, 151.9M memory peak.

Apr 13 07:31:26 qaa systemd[1]: Starting anacron.service - Run anacron jobs...
Apr 13 07:31:26 qaa anacron[841759]: Anacron 2.3 started on 2026-04-13
Apr 13 07:31:26 qaa anacron[841759]: Will run job `cron.daily' in 5 min.
Apr 13 07:31:26 qaa anacron[841759]: Jobs will be executed sequentially
Apr 13 07:36:26 qaa anacron[841759]: Job `cron.daily' started
Apr 13 07:36:26 qaa anacron[841936]: Updated timestamp for job `cron.daily' to 
2026-04-13
Apr 13 07:36:27 qaa anacron[841759]: Job `cron.daily' terminated
Apr 13 07:36:27 qaa anacron[841759]: Normal exit (1 job run)
Apr 13 07:36:27 qaa systemd[1]: anacron.service: Deactivated successfully.
Apr 13 07:36:27 qaa systemd[1]: Finished anacron.service - Run anacron jobs.
Apr 13 07:36:27 qaa systemd[1]: anacron.service: Consumed 742ms CPU time over 
5min 785ms wall clock time, 164.6M memory peak.

So, cron.daily & cron.weekly jobs are normally run at around 7:30
(every day for cron.daily, every week for cron.weekly). But on this
machine, when I upgraded, it did not wait for 7:30.

Or is this forced when the deadline is close enough, e.g. a few hours
before cron.weekly jobs should be run?

-- 
Vincent Lefèvre <[email protected]> - Web: <https://www.vinc17.net/>
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Work: CR INRIA - computer arithmetic / Pascaline project (LIP, ENS-Lyon)

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