Comment 26 for bug 1496927

Hi Joe,

I have a 15.04 install running linux-next 4.5.0-rc5 from Febr 26th, on which I can confirm Sidney's update, that udev/systemd is no longer slowing this down to a halt.

As the default 3.19 kernel on 15.04 is not having this behavior, I've installed kernel 4.2.8 from the ubuntu ppa mainline tree.
Running 4.2.8 on 15.04 brings us to the original problem with systemd-udevd CPU cycles.
It would be great if you can do the bisect this as high as kernel 4.4 from Xenial, as that one was also showing the same symptoms, so you can narrow down the patches between 4.4 (xenial) and 4.5 upstream.
Thank you!