Debian User Forums

Ever since I moved to 6.1.0-21 I have been having problem shutting down. I had NO problems with earlier kernels.

The system slowly over about ten minutes closes everything and announces it is ready for power down and then says:
Tainted: P OE 6.1.0-21-amd64

Here is a snap of the screen.


Is there a problem with this kernel?

Hmm, never heard of such a thing, but apparently tainted means something specific. FWIW, I've not had any trouble with 6.1.0-21; using on two computers and several VMs. Anyhoo, if I had this problem, I'd purge and reinstall the kernel. Among other things, this will rebuild the initramfs. Before doing that, though, reboot with an older kernel then shutdown, to make sure it still works as expected.

https://docs.kernel.org/admin-guide/tai ... rnels.html

The messages show the shutdown was blocked before the Tainted message so that is likely irrelevant. sd-sync appears to be the misbehaving process.
Possibly a storage device is not syncing - https://github.com/systemd/systemd/issues/30025

It seems that the OS was intolerant with a USB connection with a USB attached SATA drive hat likes to go to sleep on occasion. Earlier OSes were not an picky. I disconnected the USB cable from the workstation and that 'solved' the problem.