Am Montag, den 18.08.2008, 15:19 +0200 schrieb Wouter Wijngaards: > Norbert Tretkowski wrote: > > Unfortunately, I was wrong. Using libevent 1.4.6 does not fix the > > problem, unbound still freezes randomly, uses 100% CPU and does not > > answer queries. > > Which backend is libevent using? unbound at high verbosity(4) will print > the backend that libevent is using at startup, like: > > [1219063086] unbound[21633:0] debug: libevent 1.4.5 uses select method. > > On linux it defaults to epoll. That must have the bug. You can disable > the libevent EPOLL backend with: > EVENT_NOEPOLL=yes; export EVENT_NOEPOLL > set this environment variable in the shell before you start unbound. > Then it will use poll(2), which is slower, but much simpler. That could > make your bugs go away. You are right, it uses epoll. I'll try with poll method instead, thanks. Norbert