Some further debugging: On my t2.micro test case, the machine comes up with 9 memory devices, the last of which is offline at boot. Bringing that device online by hand (with the udev rules disabled) triggers the bug.
# echo online > /sys/devices/system/memory/memory8/state So something about bringing that node online causes the problem. The udev bugfix causes udev to automatically bring it up, which is why that introduced the issue, but it doesn't seem like udev is really the root problem here. -- 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 ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
