I'm actually using emacs-22.0.990-2.fc7, but I also saw this problem with the fc6 Emacs. I use networkmanager to enable and disable my VPN. When I do this, Emacs is no longer able to look up host names. It is as if Emacs remembers a particular nameserver, and doesn't notice the nameserver has changed. Reproducing is sort of a pain. But here is one recipe that works for me: * Bring down VPN * Start Emacs * Bring up VPN * Use erc-select to try to connect to an irc server only visible on the VPN. In my case this is the Red Hat internal server. * Emacs reports no such host or service available. If I exit Emacs and restart -- leaving the VPN up -- the new instance is able to connect. Conversely if I start Emacs with the VPN up, then bring it down, Emacs will not be able to properly look up hosts. I have not tried to investigate this bug more deeply. For all I know it isn't an Emacs problem at all; however, this is the only app I've seen to exhibit this behavior.
FYI -- there was some talk on the emacs devel list about something that sounded similar to this. It sounds like emacs is not properly calling res_init(). There was a patch and some discussion that it would appear in 22.2.
(In reply to comment #1) > FYI -- there was some talk on the emacs devel list about something > that sounded similar to this. It sounds like emacs is not properly > calling res_init(). There was a patch and some discussion that it would > appear in 22.2. > http://lists.gnu.org/archive/html/emacs-devel/2007-08/msg00939.html
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Still a bug in F8
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Still a bug in F9.
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