I've got a box running KDE and Debian stable, has been running fine for months, and today I did the update from 8.3 to 8.4. No problem; since it installed a new kernel, I told it to reboot.
Ever since then I've been getting random lockups of the machine -- no keyboard or mouse functionality. Programs running in the background at the time of the lockup continue to run, and I can ssh into the box when it's locked up. At first I thought it might have been a program that was causing the problems, but when ssh'ed into the box and after trying to kill a program, I got this ominous error message: Message from syslogd@shadow at Apr 3 16:59:56 ... kernel:[ 917.582125] BUG: soft lockup - CPU#0 stuck for 22s! [Xorg:1163] Waiting 22 seconds just results in another similar error message. Running "reboot" when ssh'ed into the box results in nothing happening -- a hard reboot is required. Is anyone else experiencing such issues? Got a clue as to what it might be? TIA. -- "Let's not change bosses; let's change life." -- French graffiti, May 1968.
