Date: Mon, 21 Feb 2011 00:13:12 +0100 From: Pawel Tyll <ptyll@nitronet.pl> To: Luigi Rizzo <rizzo@iet.unipi.it> Cc: Brandon Gooch <jamesbrandongooch@gmail.com>, freebsd-ipfw@freebsd.org, Jack Vogel <jfvogel@gmail.com>, freebsd-net@freebsd.org Subject: Re: problem analysys (Re: [Panic] Dummynet/IPFW related recurring crash.) Message-ID: <1167743969.20110221001312@nitronet.pl> In-Reply-To: <20110220231825.GA10566@onelab2.iet.unipi.it> References: <410175608.20110220013900@nitronet.pl> <AANLkTimWkWYj=HB5BTM0nwYWgNia-Wq4bYHsRB=OjVP7@mail.gmail.com> <AANLkTi=CLDFGxLQ8rdq3hg0KN9aYZA_YDwDWbqk5gcz2@mail.gmail.com> <1145317277.20110220045434@nitronet.pl> <20110220135855.GA4794@onelab2.iet.unipi.it> <288793167.20110220235028@nitronet.pl> <20110220231825.GA10566@onelab2.iet.unipi.it>
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> understood. I am just saying that for instance the vlan presence and > changes is quite significant in this context. > You say vlans are "pretty much static" but can you tell us who adds/remove > them, assign addresses ? It's not that much work and changes are simple and far between. I do that personally. IP addresses don't change, however I sometimes (rarely) destroy and recreate vlans. Panics don't happen immediately after this operation, or while it happens, and there were times from panic to panic that I didn't touch a thing. > Also the ruleset must have something more than those two rules. > From the stack trace, the panic seems to occur in a call to the > "antispoof" option which presumably is somewhere in your ruleset. > If not, then the stack is corrupt. Full ruleset with IP addresses removed: 00010 1691 128516 deny ip from any to any not antispoof in 00020 87440010 6826835332 fwd [removed] ip from table(60) to table(61) 00050 3246 156244 allow tcp from any to [removed] dst-port 53 = // DNS Rules 50-59 00051 2463493 260607132 allow udp from any to [removed] // DNS Rules= 50-59 00059 23891 1091822 deny ip from any to [removed] // DNS Rules 5= 0-59 00100 32 2176 allow ip from any to any via lo0 00100 929493 48342523 deny ip from any to table(10) dst-port 131-1= 39,445 00102 56574 2779124 fwd [removed] tcp from table(1) to not table= (5) dst-port 80 00103 0 0 fwd [removed] tcp from table(2) to not table= (5) dst-port 80 00104 427 17244 fwd [removed] tcp from table(3) to not table= (5) 00105 6 808 deny ip from table(3) to not table(5) 00200 0 0 deny ip from any to 127.0.0.0/8 00300 0 0 deny ip from 127.0.0.0/8 to any 00400 0 0 deny ip from any to ::1 00500 0 0 deny ip from ::1 to any 00600 0 0 allow ipv6-icmp from :: to ff02::/16 00700 0 0 allow ipv6-icmp from fe80::/10 to fe80::/10 00800 0 0 allow ipv6-icmp from fe80::/10 to ff02::/16 00900 0 0 allow ipv6-icmp from any to any ip6 icmp6typ= es 1 01000 0 0 allow ipv6-icmp from any to any ip6 icmp6typ= es 2,135,136 30000 462392089 204487140826 pipe tablearg ip from table(100) to any in 30001 535282183 461888428313 pipe tablearg ip from any to table(101) out 34900 11650783 1216622001 skipto 35001 ip from table(10) to table(10) 35000 597825867 244960831012 fwd [removed] ip from 192.168.0.0/16 to not = 192.168.0.0/16 65534 1595697378 1254723485778 allow ip from any to any 65535 0 0 allow ip from any to any 12:07AM up 1 day, 21 mins, 1 user, load averages: 0.08, 0.06, 0.01 Should IP addresses be required, I'll gladly send "uncensored" ruleset to you privately.
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