Date: Tue, 07 Aug 2012 20:17:56 +0200 From: Ian FREISLICH <ianf@clue.co.za> To: current@freebsd.org Cc: Garrett Cooper <yanegomi@gmail.com> Subject: Speaking of ship blockers for 9.... Message-ID: <E1SyoLs-0000P8-UU@clue.co.za> In-Reply-To: <CAGH67wTt295u0f_hewbKPxo63uDjtFL-9G3Gy_5yiur=7Nd4iQ@mail.gmail.com> References: <501D52AD.4010105@protected-networks.net> <CAFPOs6pPB1uLXALPwkVwFKyOLCw3%2Bx1vwW%2BCry9eBW7g04jy7w@mail.gmail.com> <CAGH67wTt295u0f_hewbKPxo63uDjtFL-9G3Gy_5yiur=7Nd4iQ@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
Garrett Cooper > Is this is in 9.1 -PRERELEASE, -RELEASE (or whatever the official > label is...)? If so, it seems like this would be a ship blocker. I have a problem that's been getting progressively worse as the source progresses. So much so that it's had me searching all the way from 8.0-RELEASE to 10-CURRENT without luck on both amd64 and i386. pf(4) erroneously mismatches state and then blocks an active flow. It seems that 8.X does so silently and 9 to -CURRENT do so verbosely. Whether silent or loud, the effect on traffic makes it impracticle to use FreeBSD+PF for a firewall in any setting (my use is home, small office, large office and moderately large datacenter core router). It appears that this has actually been a forever problem that just being tickled more now. Here's from my home firewall: Status: Enabled for 7 days 02:57:58 Debug: Urgent State Table Total Rate current entries 1653 searches 45792251 74.4/s inserts 428375 0.7/s removals 426722 0.7/s ... state-mismatch 1586 0.0/s Here's from a moderately busy firewall: Status: Enabled for 0 days 21:40:44 Debug: Urgent State Table Total Rate current entries 122395 searches 4428641685 56745.4/s inserts 202644593 2596.5/s removals 202522198 2595.0/s ... state-mismatch 277767 3.6/s That's 277767 flows terminated in the last almost 22 hours due to this pf bug. (!!!) 9.1-PRERELEASE logs (as does -CURRENT): Jul 22 08:54:25 brane kernel: pf: state key linking mismatch! dir=OUT, if=tun0, stored af=2, a0: 10.0.2.220:60985, a1: 192.41.162.30:53, proto=17, found af=2, a0: 41.154.2.53:1701, a1: 41.133.165.161:59051, proto=17. Jul 22 08:54:25 brane kernel: pf: state key linking mismatch! dir=OUT, if=tun0, stored af=2, a0: 10.0.2.220:52995, a1: 41.154.2.100:53, proto=17, found af=2, a0: 41.154.2.53:1701, a1: 41.133.165.161:59051, proto=17. Jul 22 08:54:25 brane kernel: pf: state key linking mismatch! dir=OUT, if=tun0, stored af=2, a0: 10.0.2.220:60095, a1: 206.223.136.200:53, proto=17, found af=2, a0: 41.154.2.53:1701, a1: 41.133.165.161:59051, proto=17. Jul 22 08:54:25 brane kernel: pf: state key linking mismatch! dir=OUT, if=tun0, stored af=2, a0: 10.0.2.220:50463, a1: 206.223.136.200:53, proto=17, found af=2, a0: 41.154.2.53:1701, a1: 41.133.165.161:59051, proto=17. Jul 22 08:54:25 brane kernel: pf: state key linking mismatch! dir=OUT, if=tun0, stored af=2, a0: 10.0.2.220:56748, a1: 192.41.162.30:53, proto=17, found af=2, a0: 41.154.2.53:1701, a1: 41.133.165.161:59051, proto=17. Jul 22 08:54:25 brane kernel: pf: state key linking mismatch! dir=OUT, if=tun0, stored af=2, a0: 10.0.2.220:60793, a1: 192.41.162.30:53, proto=17, found af=2, a0: 41.154.2.53:1701, a1: 41.133.165.161:59051, proto=17. Ian -- Ian Freislich
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?E1SyoLs-0000P8-UU>