Date: Sun, 07 Mar 2004 03:11:53 -0500 From: Tom McLaughlin <tmclaugh@sdf.lonestar.org> To: FreeBSD Gnome <gnome@freebsd.org> Subject: firefox hangs while trying to resolve hosts Message-ID: <1078647112.18363.64.camel@compass>
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Hi all, I've been having some problems with firefox (mozilla appears to do this as well) on certain websites with them taking significant periods of time for their address to be resolved. This doesn't seem to be a network issue on my end since while a site is hanging on this machine, I can bring up the same page on my openbsd machine running firebird 0.6 almost instantaneously. What I've done is create a few packet captures with ethereal for a site that hangs firefox a lot (www.allmusic.com)[1], a site that generally doesn't hang (www.freebsd.org)[2], and the site that hangs on freebsd but not on openbsd[3]. What I noticed is in [1] multiple type AAAA queries are made which eventually receive back a "Server failure" response and then an ICMP unreachable packet. A type A query is finally made after some time which responds fine. In [2] the type AAAA query is responded to fine and then there is a type A query. In [3] there are only type A queries made. Something more is that if I click stop in firefox as a site is hanging and then try to go to another site I will still see dns queries for the hanging site continued to be made. Eventually those will stop and I will start seeing queries for the new site. Please let me know if I can provide anything more. I didn't have this problem in 0.7. Thanks. Tom OS: 4.9-RELEASE-p3 IP: 192.168.1.128 (fbsd), 192.168.1.129 (obsd) DNS: 204.127.204.8, 216.148.227.204 [1] http://tmclaugh.freeshell.org/files/www.allmusic.com.pcap [2] http://tmclaugh.freeshell.org/files/www.freebsd.org.pcap [3] http://tmclaugh.freeshell.org/files/www.allmusic.com-obsd.pcap (I've scrubbed out a bit of the unrelated network noise in all three.)
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