Helmut Drodofsky writes: > see > http://lists.centos.org/pipermail/centos/2013-July/135847.html > > I have had the same problem and I will never understand, why this is > unchanged up to now. Excellent, thanks! Now I know how to work around it. I've seen this happening before, on CentOS5, when cups would sometimes not start. Upstream knows this problem very well or they wouldn't have introduced portreserve(1). Pretty hilarious they can't fix the actual problem.