Date: Fri, 20 May 2016 14:01:52 +0200 From: "O. Hartmann" <ohartman@zedat.fu-berlin.de> To: FreeBSD CURRENT <freebsd-current@freebsd.org> Subject: CURRENT: ipfw: problems with timeouts and worse network performance Message-ID: <20160520140152.3ab6fe44@hermann>
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With most recent CURRENT (r300295) I face a very strange behaviour on all systems running CURRENT with IPFW enabled. I realize massive network problems, especially when services like claws-mail, pgadmin3, OpenLDAP clients, drill or even svn try to connect to their servers. In most cases, the connection couln't be established due to timeouts, but repeating, like performing svn in /usr/src gives some results, but this is highly erratic. The problems vanishes when "ipfw disable firewall" is entered. We use both custom ipfw-rule-scripts as well as those used with rc.conf (mostly type WORKSTATION). The problem is prominet with having /usr/src and /usr/ports updated via subversion. In 99% of the cases svn drops out with timeouts in case IPFW is active - but everything seems all right when ipfw is disabled. As far as I could see this problem affects all CURRENT we use and it is not NIC specific, but sticks with IPFW. I reported earlier about broken pipes in ssh sessions to remote hosts, which occur on an erratic basis. i'm investigating this problem now and it seems that it is also ipfw-related, but I'm not sure. This problem is present since a couple of weeks now. Is there anything known about ipfw problems? Kind regards, Oliver
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