What seems to regularly reproduce the problem for me is to delete a file on the ssh server (from Nautilus). Shortly after Nautilus goes to 100% CPU. I would guess that the bug stems from Nautilus assuming that the deleted files are still there and doing an operation based on that incorrect assumption, resulting in a spin-lock.
I am still experiencing this in Feisty.
What seems to regularly reproduce the problem for me is to delete a file on the ssh server (from Nautilus). Shortly after Nautilus goes to 100% CPU. I would guess that the bug stems from Nautilus assuming that the deleted files are still there and doing an operation based on that incorrect assumption, resulting in a spin-lock.