Hi, Lukas! > > The configuration is fairly complex. > > I suggest you try reproducing the problem on a staging system with > minimalistic configuration and traffic. Also, if you are able to reproduce > it, try the same in FreeBSD 9.2. > > On your production box, I'm afraid we have to much noise (complex > configuration and lots of traffic) to understand where things go wrong.
Thanks very much for your answer ! Actually, we just used FreeBSD9.2 with the same configuration before, but the situation almost the same :( And is there any other possible reason there ? Or is there any possible tools for track the problem ?