I have for several months installed in my VPS lighttpd, and after solving the "problem" of the URL´s everything it has worked correctly.
For one week, I updated 2.6 and since then when I am going to create some posts or to edit someone created, the server is blocked, producing a 500 error. Then I have to reboot my VPS.
But for example it does not give me any problem when I create or edit pages.
Can someone help me?