I was able to alleviate this problem by removing e1000 and e1000e modules. sudo modprobe -r e1000 sudo modprobe -r e1000e
I tried adding them both to /etc/modprobe.d/local.conf as blacklisted which seemed to apply to e1000 but e1000e was still loaded and caused watchdog and kworker to beat the heck out of my CPU. blacklist e1000 blacklist e1000e I'm running an IBM Lenovo T61 with an old battery that has about 40% charging capacity left. As everyone else seems to experience when unplugged the problem vanishes and my ethernet port lights are also on all the time. For now I'll just remove the e1000e manually and pray the kernel gods that be bestow us with a patched kernel or better temporary fix. Don't worry Linux, I still love you! -- 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/linux/+bug/887793/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
