While resolving dig _at_127.0.0.1 and ktracing pdnsd proces I get this (4rd run in row): necrophilia src# kdump -l 372 pdnsd GIO fd 5 read 31 bytes 0x0000 20a7 0100 0001 0000 0000 0000 0377 7777 | ............www| 0x0010 0673 657a 6e61 6d02 637a 0000 0100 01 |.seznam.cz.....| 372 pdnsd RET kse_release 0 372 pdnsd CALL kse_release(0x806cfb4) 372 pdnsd RET kse_release 0 372 pdnsd CALL recvmsg(0x5,0xbfacbf94,0) 372 pdnsd RET fork 0 372 pdnsd CALL kse_release(0x806cfac) then it waits for several seconds, whole ktrace looks like this: 372 pdnsd GIO fd 5 read 31 bytes 0x0000 c4d2 0100 0001 0000 0000 0000 0377 7777 |.............www| 0x0010 0673 657a 6e61 6d02 637a 0000 0100 01 |.seznam.cz.....| 372 pdnsd RET kse_release 0 372 pdnsd CALL kse_release(0x806cfb4) 372 pdnsd RET kse_release 0 372 pdnsd CALL recvmsg(0x5,0xbfacbf94,0) 372 pdnsd RET fork 0 372 pdnsd CALL kse_release(0x806cfac) 372 pdnsd RET kse_release 0 372 pdnsd CALL kse_release(0xbfafef5c) 372 pdnsd GIO fd 5 read 31 bytes 0x0000 c4d2 0100 0001 0000 0000 0000 0377 7777 |.............www| 0x0010 0673 657a 6e61 6d02 637a 0000 0100 01 |.seznam.cz.....| 372 pdnsd RET kse_release 0 372 pdnsd CALL kse_release(0x806cfb4) 372 pdnsd RET kse_release 0 372 pdnsd CALL recvmsg(0x5,0xbfacbf94,0) 372 pdnsd RET fork 0 372 pdnsd CALL kse_release(0x806cfac) 372 pdnsd RET kse_release 0 372 pdnsd CALL gettimeofday(0xbfaedf68,0) 372 pdnsd RET gettimeofday 0 372 pdnsd CALL gettimeofday(0xbfaedf40,0) 372 pdnsd RET gettimeofday 0 372 pdnsd CALL open(0x28174a38,0,0x1b6) 372 pdnsd NAMI "/etc/protocols" 372 pdnsd RET open 7 372 pdnsd CALL fstat(0x7,0xbfaed8e8) 372 pdnsd RET fstat 0 372 pdnsd CALL read(0x7,0x808b000,0x4000) 372 pdnsd GIO fd 7 read 4096 bytes "# # Internet protocols # # $FreeBSD: src/etc/protocols,v 1.19 2004/03/08 22:03:27 mlaier Exp $ # from: _at_(#)protocols 5.1 (Berkeley) 4/17/89 # # See also http://www.iana.org/assignments/protocol-numbers # ip 0 IP # internet protocol, pseudo protocol n\ umber #hopopt 0 HOPOPT # hop-by-hop options for ipv6 icmp 1 ICMP # internet control message protocol igmp 2 IGMP # internet group management protocol ggp 3 GGP # gateway-gateway protocol ipencap 4 IP-ENCAP # IP encapsulated in IP (officially ``\ IP'') st2 5 ST2 # ST2 datagram mode (RFC 1819) tcp 6 TCP # transmission control protocol cbt 7 CBT # CBT, Tony Ballardie <A.Ballardie_at_cs.\ ucl.ac.uk> egp 8 EGP # exterior gateway protocol igp 9 IGP # any private interior gateway (Cisco:\ for IGRP) bbn-rcc 10 BBN-RCC-MON # BBN RCC Monitoring nvp 11 NVP-II # Network Voice Protocol pup 12 PUP # PARC universal packet protocol argus 13 ARGUS # ARGUS emcon 14 EMCON # EMCON xnet 15 XNET # Cross Net Debugger chaos 16 CHAOS # Chaos udp 17 UDP # user datagram protocol mux 18 MUX # Multiplexing protocol dcn 19 DCN-MEAS # DCN Measurement Subsystems hmp 20 HMP # host monitoring protocol prm 21 PRM # packet radio measurement protocol xns-idp 22 XNS-IDP # Xerox NS IDP trunk-1 23 TRUNK-1 # Trunk-1 trunk-2 24 TRUNK-2 # Trunk-2 leaf-1 25 LEAF-1 # Leaf-1 leaf-2 26 LEAF-2 # Leaf-2 rdp 27 RDP # "reliable datagram" protocol irtp 28 IRTP # Internet Reliable Transaction Protoc\ ol iso-tp4 29 ISO-TP4 # ISO Transport Protocol Class 4 netblt 30 NETBLT # Bulk Data Transfer Protocol mfe-nsp 31 MFE-NSP # MFE Network Services Protocol merit-inp 32 MERIT-INP # MERIT Internodal Protocol sep 33 SEP # Sequential Exchange Protocol 3pc 34 3PC # Third Party Connect Protocol idpr 35 IDPR # Inter-Domain Policy Routing Protocol xtp 36 XTP # Xpress Tranfer Protocol ddp 37 DDP # Datagram Delivery Protocol idpr-cmtp 38 IDPR-CMTP # IDPR Control Message Transpo\ rt Proto tp++ 39 TP++ # TP++ Transport Protocol il 40 IL # IL Transport Protocol ipv6 41 IPV6 # ipv6 sdrp 42 SDRP # Source Demand Routing Protocol ipv6-route 43 IPV6-ROUTE # routing header for ipv6 ipv6-frag 44 IPV6-FRAG # fragment header for ipv6 idrp 45 IDRP # Inter-Domain Routing Protocol rsvp 46 RSVP # Resource ReSerVation Protocol gre 47 GRE # Generic Routing Encapsulation mhrp 48 MHRP # Mobile Host Routing Protocol bna 49 BNA # BNA esp 50 ESP # encapsulating security payload ah 51 AH # authentication header i-nlsp 52 I-NLSP # Integrated Net Layer Security TUBA swipe 53 SWIPE # IP with Encryption narp 54 NARP # NBMA Address Resolution Protocol mobile 55 MOBILE # IP Mobility tlsp 56 TLSP # Transport Layer Security Protocol skip 57 SKIP # SKIP ipv6-icmp 58 IPV6-ICMP icmp6 # ICMP for IPv6 ipv6-nonxt 59 IPV6-NONXT # no next header for ipv6 ipv6-opts 60 IPV6-OPTS # destination options for ipv6 # 61 # any host internal protocol cftp 62 CFTP # CFTP # 63 # any local network sat-expak 64 SAT-EXPAK # SATNET and Backroom EXPAK kryptolan 65 KRYPTOLAN # Kryptolan rvd 66 RVD # MIT Remote Virtual Disk Protocol ippc 67 IPPC # Internet Pluribus Packet Core # 68 # any distributed filesystem sat-mon 69 SAT-MON # SATNET Monitoring visa 70 VISA # VISA Protocol ipcv 71 IPCV # Internet Packet Core Utility cpnx 72 CPNX # Computer Protocol Network Executive cphb 73 CPHB # Computer Protocol Heart Beat wsn 74 WSN # Wang Span Network pvp 75 PVP # Packet Video Protocol br-sat-mon 76 BR-SAT-MON # Backroom SATNET Monitoring sun-nd 77 SUN-ND # SUN ND PROTOCOL-Temporary wb-mon 78 WB-MON # WIDEBAND Monitoring wb-expak 79 WB-EXPAK # WIDEBAND EXPAK iso-ip 80 ISO-IP # ISO Internet Protocol vmtp 81 VMTP # Versatile Message Transport secure-vmtp 82 SECURE-VMTP # SECURE-VMTP vines 83 VINES # VINES ttp 84 TTP # TTP nsfnet-igp 85 NSFNET-IGP # NSFNET-IGP dgp 86 DGP # Dissimilar Gateway Protocol tcf 87 TCF # TCF eigrp 88 EIGRP # Enhanced Interior Routing Protocol (\ Cisco) ospf 89 OSPFIGP # Open Shortest Path First IGP sprite-rpc 90 Sprite-RPC # Sprite RPC Protocol larp 91 LARP # Locus Address Resolution Protocol mtp 92 MTP # Multicast Transp" 372 pdnsd RET read 5757/0x167d 372 pdnsd CALL close(0x7) 372 pdnsd RET close 0 372 pdnsd CALL sendto(0x3,0xbfaede98,0x8,0,0xbfaedeb8,0x10) 372 pdnsd GIO fd 3 wrote 8 bytes 0x0000 0800 4147 b6b8 0000 |..AG....| 372 pdnsd RET sendto 8 372 pdnsd CALL gettimeofday(0xbfaeda20,0) 372 pdnsd RET gettimeofday 0 372 pdnsd CALL poll(0xbfaeda50,0x1,0xbb8) 372 pdnsd RET fork 0 372 pdnsd CALL kse_release(0x806cfac) 372 pdnsd RET kse_release 0 372 pdnsd CALL recvfrom(0x3,0xbfaeda98,0x400,0,0xbfaedec8,0xbfaeda4c) 372 pdnsd GIO fd 3 read 28 bytes 0x0000 4500 0800 a8b6 0000 3901 7af5 c371 90c2 |E.......9.z..q..| 0x0010 0a00 0002 0000 4947 b6b8 0000 |......IG....| 372 pdnsd RET recvfrom 28/0x1c 372 pdnsd CALL gettimeofday(0xbfaeda20,0) 372 pdnsd RET gettimeofday 0 372 pdnsd CALL gettimeofday(0xbfaedfac,0) 372 pdnsd RET gettimeofday 0 372 pdnsd CALL kse_release(0x806cfb4) 372 pdnsd RET kse_release 0 372 pdnsd CALL kse_release(0xbfafef5c) 372 pdnsd RET kse_release 0 372 pdnsd CALL gettimeofday(0xbfaedf68,0) 372 pdnsd RET gettimeofday 0 372 pdnsd CALL gettimeofday(0xbfaedfac,0) 372 pdnsd RET gettimeofday 0 372 pdnsd CALL kse_release(0x806cfb4) 372 pdnsd RET kse_release 0 372 pdnsd CALL gettimeofday(0xbfaedf68,0) 372 pdnsd RET gettimeofday 0 372 pdnsd CALL gettimeofday(0xbfaedf40,0) 372 pdnsd RET gettimeofday 0 372 pdnsd CALL open(0x28174a38,0,0x1b6) 372 pdnsd NAMI "/etc/protocols" 372 pdnsd RET open 7 372 pdnsd CALL fstat(0x7,0xbfaed8e8) 372 pdnsd RET fstat 0 372 pdnsd CALL read(0x7,0x808b000,0x4000) 372 pdnsd GIO fd 7 read 4096 bytes "# # Internet protocols # # $FreeBSD: src/etc/protocols,v 1.19 2004/03/08 22:03:27 mlaier Exp $ # from: _at_(#)protocols 5.1 (Berkeley) 4/17/89 # # See also http://www.iana.org/assignments/protocol-numbers # ip 0 IP # internet protocol, pseudo protocol n\ umber #hopopt 0 HOPOPT # hop-by-hop options for ipv6 icmp 1 ICMP # internet control message protocol igmp 2 IGMP # internet group management protocol ggp 3 GGP # gateway-gateway protocol ipencap 4 IP-ENCAP # IP encapsulated in IP (officially ``\ IP'') st2 5 ST2 # ST2 datagram mode (RFC 1819) tcp 6 TCP # transmission control protocol cbt 7 CBT # CBT, Tony Ballardie <A.Ballardie_at_cs.\ ucl.ac.uk> egp 8 EGP # exterior gateway protocol igp 9 IGP # any private interior gateway (Cisco:\ for IGRP) bbn-rcc 10 BBN-RCC-MON # BBN RCC Monitoring nvp 11 NVP-II # Network Voice Protocol pup 12 PUP # PARC universal packet protocol argus 13 ARGUS # ARGUS emcon 14 EMCON # EMCON xnet 15 XNET # Cross Net Debugger chaos 16 CHAOS # Chaos udp 17 UDP # user datagram protocol mux 18 MUX # Multiplexing protocol dcn 19 DCN-MEAS # DCN Measurement Subsystems hmp 20 HMP # host monitoring protocol prm 21 PRM # packet radio measurement protocol xns-idp 22 XNS-IDP # Xerox NS IDP trunk-1 23 TRUNK-1 # Trunk-1 trunk-2 24 TRUNK-2 # Trunk-2 leaf-1 25 LEAF-1 # Leaf-1 leaf-2 26 LEAF-2 # Leaf-2 rdp 27 RDP # "reliable datagram" protocol irtp 28 IRTP # Internet Reliable Transaction Protoc\ ol iso-tp4 29 ISO-TP4 # ISO Transport Protocol Class 4 netblt 30 NETBLT # Bulk Data Transfer Protocol mfe-nsp 31 MFE-NSP # MFE Network Services Protocol merit-inp 32 MERIT-INP # MERIT Internodal Protocol sep 33 SEP # Sequential Exchange Protocol 3pc 34 3PC # Third Party Connect Protocol idpr 35 IDPR # Inter-Domain Policy Routing Protocol xtp 36 XTP # Xpress Tranfer Protocol ddp 37 DDP # Datagram Delivery Protocol idpr-cmtp 38 IDPR-CMTP # IDPR Control Message Transpo\ rt Proto tp++ 39 TP++ # TP++ Transport Protocol il 40 IL # IL Transport Protocol ipv6 41 IPV6 # ipv6 sdrp 42 SDRP # Source Demand Routing Protocol ipv6-route 43 IPV6-ROUTE # routing header for ipv6 ipv6-frag 44 IPV6-FRAG # fragment header for ipv6 idrp 45 IDRP # Inter-Domain Routing Protocol rsvp 46 RSVP # Resource ReSerVation Protocol gre 47 GRE # Generic Routing Encapsulation mhrp 48 MHRP # Mobile Host Routing Protocol bna 49 BNA # BNA esp 50 ESP # encapsulating security payload ah 51 AH # authentication header i-nlsp 52 I-NLSP # Integrated Net Layer Security TUBA swipe 53 SWIPE # IP with Encryption narp 54 NARP # NBMA Address Resolution Protocol mobile 55 MOBILE # IP Mobility tlsp 56 TLSP # Transport Layer Security Protocol skip 57 SKIP # SKIP ipv6-icmp 58 IPV6-ICMP icmp6 # ICMP for IPv6 ipv6-nonxt 59 IPV6-NONXT # no next header for ipv6 ipv6-opts 60 IPV6-OPTS # destination options for ipv6 # 61 # any host internal protocol cftp 62 CFTP # CFTP # 63 # any local network sat-expak 64 SAT-EXPAK # SATNET and Backroom EXPAK kryptolan 65 KRYPTOLAN # Kryptolan rvd 66 RVD # MIT Remote Virtual Disk Protocol ippc 67 IPPC # Internet Pluribus Packet Core # 68 # any distributed filesystem sat-mon 69 SAT-MON # SATNET Monitoring visa 70 VISA # VISA Protocol ipcv 71 IPCV # Internet Packet Core Utility cpnx 72 CPNX # Computer Protocol Network Executive cphb 73 CPHB # Computer Protocol Heart Beat wsn 74 WSN # Wang Span Network pvp 75 PVP # Packet Video Protocol br-sat-mon 76 BR-SAT-MON # Backroom SATNET Monitoring sun-nd 77 SUN-ND # SUN ND PROTOCOL-Temporary wb-mon 78 WB-MON # WIDEBAND Monitoring wb-expak 79 WB-EXPAK # WIDEBAND EXPAK iso-ip 80 ISO-IP # ISO Internet Protocol vmtp 81 VMTP # Versatile Message Transport secure-vmtp 82 SECURE-VMTP # SECURE-VMTP vines 83 VINES # VINES ttp 84 TTP # TTP nsfnet-igp 85 NSFNET-IGP # NSFNET-IGP dgp 86 DGP # Dissimilar Gateway Protocol tcf 87 TCF # TCF eigrp 88 EIGRP # Enhanced Interior Routing Protocol (\ Cisco) ospf 89 OSPFIGP # Open Shortest Path First IGP sprite-rpc 90 Sprite-RPC # Sprite RPC Protocol larp 91 LARP # Locus Address Resolution Protocol mtp 92 MTP # Multicast Transp" 372 pdnsd RET read 5757/0x167d 372 pdnsd CALL close(0x7) 372 pdnsd RET close 0 372 pdnsd CALL sendto(0x3,0xbfaede98,0x8,0,0xbfaedeb8,0x10) 372 pdnsd GIO fd 3 wrote 8 bytes 0x0000 0800 0799 f066 0000 |.....f..| 372 pdnsd RET sendto 8 372 pdnsd CALL gettimeofday(0xbfaeda20,0) 372 pdnsd RET gettimeofday 0 372 pdnsd CALL poll(0xbfaeda50,0x1,0xbb8) 372 pdnsd RET fork 0 372 pdnsd CALL kse_release(0x806cfac) 372 pdnsd RET kse_release 0 372 pdnsd CALL recvfrom(0x3,0xbfaeda98,0x400,0,0xbfaedec8,0xbfaeda4c) 372 pdnsd GIO fd 3 read 28 bytes 0x0000 4500 0800 a8b8 0000 3901 7af3 c371 90c2 |E.......9.z..q..| 0x0010 0a00 0002 0000 0f99 f066 0000 |.........f..| 372 pdnsd RET recvfrom 28/0x1c 372 pdnsd CALL gettimeofday(0xbfaeda20,0) 372 pdnsd RET gettimeofday 0 372 pdnsd CALL gettimeofday(0xbfaedfac,0) 372 pdnsd RET gettimeofday 0 372 pdnsd CALL kse_release(0x806cfb4) 372 pdnsd RET kse_release 0 372 pdnsd CALL kse_release(0xbfafef5c)Received on Wed Jul 14 2004 - 11:03:35 UTC
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