Sorry for commenting in the middle of your ongoing work, but I struggle matching your findings to my own.
Just like Sam and Sean reported, I see the bug on EC2 t2.micro running 15.10. I can reproduce it on t2.small as well, but it takes a little longer as I have to exaust the free memory. I've installed several instances with different Ubuntu versions keeping everything the same. I only observe this bug on Ubuntu 15.10 All versions running the latest security updates: 14.04 (3.13.0-74): OK 15:04 (3.19.0-43): OK 15:10 (4.2.0-22): Not OK If I understand the comments correctly, the hypothesis is that the bug was introduced between 3.12 final and 3.13-rc1. To me it seems to have been introduced between 3.19.0-43 and 4.2.0-22. Is that worth double checking? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1518457 Title: kswapd0 100% CPU usage To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1518457/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
