Date: Wed, 14 Jul 2004 15:03:31 +0200 From: Divacky Roman <xdivac02@stud.fit.vutbr.cz> To: current@freebsd.org Subject: ktrace of pdnsd attached Message-ID: <20040714130331.GB58992@stud.fit.vutbr.cz> In-Reply-To: <20040714125335.GA58992@stud.fit.vutbr.cz> References: <20040714125127.GA59066@stud.fit.vutbr.cz> <20040714125335.GA58992@stud.fit.vutbr.cz>
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While resolving
dig @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: @(#)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@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: @(#)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@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)
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