On Wed, Feb 22, 2017 at 2:59 AM, Yuanhan Liu <yuanhan....@linux.intel.com> wrote: > > On Tue, Feb 21, 2017 at 03:25:30PM +0100, Matthias Gatto wrote: > > fdset_add increment pfdset->num, but fdset_del doesn't decrement > > pfdset->num, > > so if we call fdset_add then fdset_del in a loop witout calling > > fdset_shrink, we can easily exceed MAX_FDS with only a few number of fds > > used. > > I'm assuming you were doing some tests like following? > > while true; do > ovs-vsctl add-port br vhost_n -- ... > ovs-vsctl del-port vhost_n > done >
Something pretty close to this yes.