Confirmed. I suspended my computer after vacuuming my room and updating Ubuntu 11.10 (don't remember the order, but there were no kernel updates involved). After that, the kworker/* processes started occurring. They halt and block keyboard and mouse input at random intervals (like every 10 seconds). It's not a freeze, I think it's the kernel interrupt scheduler ignoring stuff such as mouse/keyboard/screen.
/etc/init.d/networking restart does not work. Disabling the NetworkManager works, all kworker processes disappear. "/etc/init.d/networking stop" works, but it (accidentally) killed NetworkManager and my theme manager so now everything looks like 2001 and I cannot start nm-applet. "dhclient eth0" does not work (the eth0 interface seems absolutely dead) I restarted my computer and the problem persisted. Then I did "ifconfig eth0 down" and it went away. And doing "ifconfig eth0 up" brings the kworker madness back. Therefore I this problem is related to the ethernet module. I'm also running T61 like #14 but it's not 64 bit, it's i386. My ethernet is: 00:19.0 Ethernet controller: Intel Corporation 82566MM Gigabit Network Connection (rev 03) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/887793 Title: Kworker constantly taking about 100% CPU To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/887793/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
