Buggy network connection causes very low system responsiveness

[Colin Walters]

On Tue, Apr 1, 2008 at 8:36 PM, David Mansfield <fedora at dm.cobite.com> wrote:
>
>  I've always suspected that some apps cache values read
>  from /etc/resolv.conf (for example, I KNOW that postfix does) so if you
>  start the app (or perhaps a bonobo activation server....) and then later
>  when network configs change, the app keeps using the old values.

Every application using glibc behaves that way unless it explicitly
goes out of its way to listen for network changes and call res_init().
http://www.redhat.com/archives/rhl-devel-list/2007-December/msg00355.html