Comment 38 for bug 204413

In my testing this bug has nothing to do with the thumb-nailing of media files. To reproduce the bug create a folder on your desktop called bug, now inside the bug folder create a new folder called empty. Open System Monitor so that you can watch the memory usage of nautilus. Now with nautlus go into the empty folder once inside the empty folder go one dirctory up, then go back into the empty folder, do this process about 100 times and you will see that the memory usage of nautilus slowly starts growing.

With regards to thumb-nailing, if one has lots of media files in a folder and one goes into that folder, the problem that is seen with memory increase just by going into a empty folder is increased and the problem shows it's self more easily, but the problem does exist even if one does not use any media files.

I have tested this on intrepid (amd64) and jaunty (32-bit beta) with all current updates installed, problem still exists.
Hardware ranges from desktop system (intel quad core), laptop (intel dual core) and netbook (intel atom)

File systems range from ext2 (netbook) ext3 (desktop) ext4 (laptop)

I think the bug is a huge problem, because if one never switches off your system, just by browsing around one's computer on a long enough time line nautilus will consume a huge amout of ram.