Bug#1110703: systemd: System doesn't poweroff with kernel 6.16

[Luca Boccassi]

Control: tags -1 moreinfo

On Sun, 10 Aug 2025 10:57:51 +0200 attila
<ing.attilio.carolillo at live.com> wrote:
> Package: systemd
> Version: 257.7-1
> Severity: normal
> X-Debbugs-Cc: ing.attilio.carolillo at live.com
> 
> Dear Maintainer,
> 
> my system ins't able to power off and requires a long press of the
power button. While i wai until it NOT turn off on the screen i read:
> 
> "
> ...........................
> [ OK ] Deactivated swap dev-nvmeon1p7.swap - /dev/nvme0n1p7. OK
Deactivated swap dev-disk-by\x2duuid-
15733a89\x2dbb55\x2d45ff\x2d8775\x2dc1bdf15340dd.swap 
> [OK] Reached target umount.target - Unmount All Filesystems. 
> [OK] Reached target final.target Late Shutdown Services.
> [ OK ] Finished systemd-poweroff.service System Power Off.
> [ OK ] Reached target poweroff.target System Power Off.
> -
> /dev/disk/by-path/pci-0000:
> [ 3099.851551] systemd-journald [434]: Failed to send WATCHDOG=1
notification message: Connection refused systemd-journald [434]: Failed
to send WATCHDOG=1 notification message: Connection refused
> /dev/disk/by-uuid/1573
> [ 3179.052336] systemd-journald [434]: Failed to send WATCHDOG=1
notification message: Transport endpoint is not connected systemd-
journald [434]: Failed to send WATCHDOG=1 notification message:
Transport endpoint is not connected
> "
> 
> On my old lenovo G580 i don't get this error and the laptop turns off
correctly.
> I can give to you more  logs if you need them.
> Regards

This is unactionable due to lack of crucial information.

1) Why does it mention kernel 6.16? Does the problem not appear with
6.12.x?
2) Enable debug logs for both the kernel and systemd and upload to a
pastebin the full log during shutdown and link it here