Hi, >> Change the threading lib. It fixed it for us. >> >> % cat /etc/libmap.conf >> [clamd] >> libc_r.so.5 libthr.so.2 >> libc_r.so.6 libthr.so.2 >> libthr.so.2 libthr.so.2 >> libpthread.so.1 libthr.so.2 >> libpthread.so.2 libthr.so.2 Even with libthr the CPU usage is still far too high ... I'm currently looking at the code. Martin