[Nut-upsuser] WALL not working on Debian 12

[Matus UHLAR - fantomas]

On 10.11.24 23:18, Jim Klimov wrote:
>Maybe...ish - I haven't seen those for a while, but had few outages either.
>
>Can you check if the updated (root) user profile or default profile(s)
>under /etc mention `mesg n` or similar means of limiting broadcasts?
>
>In your manual `wall` executions, do you see them in the same terminal that
>sent the message, or on all terminals (GUI, SSH sessions)? As root or as
>any user (as recipient and as sender)?

I have "mesg y" by default.

manual "wall" did send the message to multiple terminal sessions, just as 
upsmon from older Debian versions.

I suspect systemd may also be guilty of that, since it tende to mess up much 
- I don't run selinux nor apparmor on that machine
(but I may check again)

seems that there's no way of debugging that, the highest debug level used is 
4. I can compile upsmon locally to debug more.

>On Sun, Nov 10, 2024 at 9:17 PM Matus UHLAR - fantomas via Nut-upsuser <
>nut-upsuser at alioth-lists.debian.net> wrote:
>> I have noticed that (apparensly) since Debian 12 upgrade the WALL
>> commands for upsmon.conf don's seem to work.
>>
>>
>> To test I have configured upsmon-dummy.conf to debug this:
>>
>> NOTIFYCMD /usr/sbin/upssched
>>
>> NOTIFYFLAG ONBATT       SYSLOG+EXEC+WALL
>> NOTIFYFLAG ONLINE       SYSLOG+EXEC+WALL
>>
>> the /usr/sbin/upssched gets called:
>>
>> /lib/nut/upsmon -D -D -D -D -f /etc/nut/upsmon-dummy.conf
>>
>> and I can see the command being executed:
>>
>>    15.006263     [D2] do_notify: ntype 0x0001 (ONBATT)
>>    15.006273     UPS dummy at localhost on battery
>>    15.006598     [D3] Current power value: 1
>>    15.006637     [D3] Minimum power value: 1
>> Executing command: onbattwarn
>>
>> Nov 10 20:29:05 xxx upssched[22030]: Executing command: onbattwarn
>> Nov 10 20:29:05 xxx upssched-cmd[22033]: The UPS is off-line
>>
>>    35.008150     [D2] do_notify: ntype 0x0000 (ONLINE)
>>    35.008186     UPS dummy at localhost on line power
>>    35.008511     [D3] Current power value: 1
>>    35.008574     [D3] Minimum power value: 1
>> Executing command: ups-back-on-power
>>
>> Nov 10 20:29:25 xxx upssched[22065]: Executing command: ups-back-on-power
>> Nov 10 20:29:25 xxx upssched-cmd[22068]: The UPS is on-line
>>
>> however the WALL flag does not work.
>>
>> executing "wall" command manually does work.
>>
>> Did anyone notice behaviour change?
>>
>> As I mentioned, I have Debian 12, nut 2.8.0.  On Debian 10/11 with nut 
>> 2.7.4 wall worked.

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