Comment 9 for bug 778052

Still the case on an updated Oneiric and HP 625 notebook, description exactly as the topic. As soon as usb-stick gets unmounted CPU decreases rapidly.
New observations, the issue occurs only with Verbatim stick, I've tested another generic-stick on Natty and Oneiric with no issues at all, no high CPU and top doesn't even take notice from udisk-daemon or gvfs-volume.
Both sticks aren't empty and file copy works.

Since Verbatim didn't have issues with Maverick, there obviously were changes made somewhere, that Ubuntu doesn't like Verbatim anymore.

Note, due to Oneiric I'll make an apport-collect now with plugged in Verbatim.