Marc Chamberlin composed on 2024-01-20 12:57 (UTC-0800):
I am running OpenSuSE 15.5 with KDE/Plasma on my laptop and I, this morning, gave it permission to install the latest set of updates that I was told were waiting. It included a kernel update and as usual those want me to reboot after being installed. So I did and now I can no longer get my desktop up and running. The visual log, seen by using the Esc key during the system startup process, gives the following clues.
During a regular (init 5) startup, I see two "start jobs" that seem to run forever -
(1 of 2) A start job is running for User Login Management (xxmin xxs / ymin)
(2 of 2) A start job is running for Hold until boot process finishes up (xxmin xxsec / no limit)
Start job (1 of 2) keeps upping the ymin limit for about 15 to 20 minutes and then the following messages are logged -
FAILED] Failed to start User Login Management. See 'systemctl status systemd-logind services' for details. [ OK ] Stopped User Login Management. Starting Load Kernel Module drm... [ OK ] Finished Load Kernel Module drm. Starting User Login Management... Starting Cleanup of Temporary Directories... [ OK ] Finished Cleanup of Temporary Directories.
and then this cycle repeats forever. I next tried to start up OpenSuSE to init 3 and only the following error message was simply reported -
FAILED to start Command Scheduler
I am then allowed to login as root but I don't know what to do or how to proceed. While logged in, I do get repeating message interrupts telling me -
kernel:[ nnn.nnnnnnn C0] BUG:workqueue lockup - pool cpus=14 node=0 flags=0x0 nice=0 stuck for xxxs!
So how do I get my laptop back to a happy state?
Marc C 1 1
Note in /boot/ whether the initrds all have today's timestamps, or only just the newest kernel. Reboot selecting the prior kernel from advanced options. What happens? If same problem, and the older kernel's initrd was rebuilt today, try restoring the initrd from your backup for prior kernel, then try booting using it. If none of that helps. Try init 3 again, then zypper ref, zypper up, to see if the earlier update may not have completed. I did multiple PCs' 15.5 updates with new kernels yesterday and Thursday, all smooth, working as expected. -- Evolution as taught in public schools is, like religion, based on faith, not based on science. Team OS/2 ** Reg. Linux User #211409 ** a11y rocks! Felix Miata