Hi!
as a user noticed me, there's an issue with thumbnails on growing files (on video thumbnail, currently, but i guess it could be found on other file types too, if big enough).
The problem is that on each size update the kio_thumbnail process is called, which with a big file leads to a huge amount of processes.
I can see a couple of solutions:
one is to make kio_thumbnail exit when a file is marked as "growing" (don't know how to do it, but it has the advantage of being centralized).
Another solution is to patch the application (or kpart) using the thumbnailer (i looked it yesterday, it should be in dolphin kpart).
Feedback?