[ntp:questions] Outrageous delay syncing WinXP to Linux with ntp4.2.6p2

Danny Mayer mayer at ntp.org
Thu Aug 5 11:52:59 UTC 2010


On 8/3/2010 4:42 PM, Cindy Huyser wrote:
> I have a Windows XP box (running Win XP Pro SP 3)  that connects to a
> couple of Linux machines, all of which are not connected to the
> Internet. I am using one of the Linux boxes as a time server, and the
> other Linux system has no trouble getting time from it via IPv4 or
> IPv6. Not so, with the Windows XP system, at least with the 4.2.6
> binaries (I've tried both ntp4.2.6p2 and ntp4.2.6.p1 from Dave Hart's
> site). I am able to sync without issue using the 4.2.4p8 binaries
> provided in the latest Meinburg installation package.
> 
> I have a fairly simple configuration file, which works without issue
> with v4.2.4:
> 
> restrict default ignore
> restrict 127.0.0.1
> 
> # use our local clock as a backup.
> # see the "system-config-date" Advanced Options->Use Local Time Source
> # for a description of this server 127.127.1.0 line
> server 127.127.1.0
> fudge   127.127.1.0 stratum 10
> 

Don't use this unless you are serving up time to other clients. Remove
these two lines and it will synch to your Linux box.

Danny

> driftfile       "C:\Windows\Temp\ntp.drift"
> broadcastdelay  0.008
> logfile         "C:\Windows\Temp\ntp.log"
> 
> server 172.16.98.231 iburst prefer
> restrict 172.16.98.231 mask 255.255.255.255 nomodify notrap noquery
> 
> 
> With the 4.2.4 binaries, my output from ntpq -p is:
> 
>      remote           refid      st t when poll reach   delay
> offset  jitter
> ==============================================================================
>  LOCAL(0)        .LOCL.          10 l   50   64    7    0.000
> 0.000   0.001
>  linux_time_svr   LOCAL(0)      3 u    5   64    7    0.295   -2.638
> 0.640
> 
> But the output using the 4.2.6 binaries is:
> 
>      remote           refid      st t when poll reach   delay
> offset  jitter
> ==============================================================================
> *LOCAL(0)        .LOCL.          10 l   56   64    1    0.000
> 0.000   0.000
>  linux_time_svr   LOCAL(0)      3 u   45   64    1    0.578  747067.
> 0.146
> 
> Finally, my debug output from running ntpd -g -M -n -D 3 -c "c:
> \program files\ntp\etc\ntp.conf" with 4.2.6p2 is shown below; I am
> guessing the "select survivor" line is where the ntp client decides to
> use the local clock.
> 
> C:\Program Files\NTP\bin>ntpd -g -M -n -D 3 -c "c:\program files\ntp
> \etc\ntp.conf"
> ntpd 4.2.6p2-o Jul 09 4:44:44.34 (UTC-00:00) 2010  (1)
> addto_syslog: Raised to realtime priority class
> addto_syslog: MM timer resolution: 1..1000000 msec, set to 1 msec
> addto_syslog: Performance counter frequency 2660.030 MHz
> addto_syslog: Clock interrupt period 15.625 msec
> addto_syslog: Windows clock precision 15.625 msec, min. slew 6.400 ppm/
> s
> Wiring to processor 2 (0 means all) affinity mask 2
> addto_syslog: HZ 64.000 using 43 msec timer 23.256 Hz 64 deep
> addto_syslog: set_process_priority: Leave priority alone:
> priority_done is <2>
> addto_syslog: proto: precision = 0.300 usec
> loop_config: item 1 freq 0.000000
> Finished Parsing!!
> create_sockets(123)
> Allocation 32 memory for io_completion_port_add_socket, ptr 3be100
> addto_syslog: Listen and drop on 0 v4wildcard 0.0.0.0 UDP 123
> created interface #0: fd=1860, bfd=-1, name=v4wildcard, flags=0x89,
> scope=0, sin
> =0.0.0.0, bcast=0.0.0.0, mask=255.255.255.255, Disabled:
> Allocation 32 memory for io_completion_port_add_socket, ptr 3be2c0
> addto_syslog: Listen and drop on 1 v6wildcard :: UDP 123
> created interface #1: fd=1848, bfd=-1, name=v6wildcard, flags=0x81,
> scope=0, sin
> =::, Disabled:
> update_interfaces(123)
> create_interface(127.0.0.1#123)
> Allocation 32 memory for io_completion_port_add_socket, ptr c9b360
> addto_syslog: Listen normally on 2 v4loop 1 127.0.0.1 UDP 123
> restrict: op 1 addr 127.0.0.1 mask 255.255.255.255 mflags 00003000
> flags 0000000
> 1
> created interface #2: fd=1832, bfd=-1, name=v4loop 1, flags=0x1d,
> scope=0, sin=1
> 27.0.0.1, bcast=127.255.255.255, mask=255.0.0.0, Enabled:
> updating interface #2: fd=1832, bfd=-1, name=v4loop 1, flags=0x1d,
> scope=0, sin=
> 127.0.0.1, bcast=127.255.255.255, mask=255.0.0.0, Enabled: new -
> created
> create_interface(172.16.99.63#123)
> Allocation 32 memory for io_completion_port_add_socket, ptr c9b938
> addto_syslog: Listen normally on 3 IPv4 2 172.16.99.63 UDP 123
> restrict: op 1 addr 172.16.99.63 mask 255.255.255.255 mflags 00003000
> flags 0000
> 0001
> created interface #3: fd=1824, bfd=-1, name=IPv4 2, flags=0x19,
> scope=0, sin=172
> .16.99.63, bcast=172.16.99.255, mask=255.255.254.0, Enabled:
> updating interface #3: fd=1824, bfd=-1, name=IPv4 2, flags=0x19,
> scope=0, sin=17
> 2.16.99.63, bcast=172.16.99.255, mask=255.255.254.0, Enabled: new -
> created
> create_interface(fe80::5efe:ac10:633f#123)
> Allocation 32 memory for io_completion_port_add_socket, ptr c9baf8
> addto_syslog: Listen normally on 4 IPv6 1 fe80::5efe:ac10:633f UDP 123
> restrict: op 1 addr fe80::5efe:ac10:633f mask
> ffff:ffff:ffff:ffff:ffff:ffff:ffff
> :ffff mflags 00003000 flags 00000001
> created interface #4: fd=1816, bfd=-1, name=IPv6 1, flags=0x11,
> scope=2, sin=fe8
> 0::5efe:ac10:633f, Enabled:
> updating interface #4: fd=1816, bfd=-1, name=IPv6 1, flags=0x11,
> scope=2, sin=fe
> 80::5efe:ac10:633f, Enabled: new - created
> create_interface(fe80::20c:29ff:fe85:5610#123)
> Allocation 32 memory for io_completion_port_add_socket, ptr c9c0b0
> addto_syslog: Listen normally on 5 IPv6 2 fe80::20c:29ff:fe85:5610 UDP
> 123
> restrict: op 1 addr fe80::20c:29ff:fe85:5610 mask
> ffff:ffff:ffff:ffff:ffff:ffff:
> ffff:ffff mflags 00003000 flags 00000001
> created interface #5: fd=1808, bfd=-1, name=IPv6 2, flags=0x11,
> scope=4, sin=fe8
> 0::20c:29ff:fe85:5610, Enabled:
> updating interface #5: fd=1808, bfd=-1, name=IPv6 2, flags=0x11,
> scope=4, sin=fe
> 80::20c:29ff:fe85:5610, Enabled: new - created
> create_interface(::1#123)
> Allocation 32 memory for io_completion_port_add_socket, ptr c9c270
> addto_syslog: Listen normally on 6 v6loop 3 ::1 UDP 123
> restrict: op 1 addr ::1 mask ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
> mflags 0000
> 3000 flags 00000001
> created interface #6: fd=1800, bfd=-1, name=v6loop 3, flags=0x15,
> scope=0, sin=:
> :1, Enabled:
> updating interface #6: fd=1800, bfd=-1, name=v6loop 3, flags=0x15,
> scope=0, sin=
> ::1, Enabled: new - created
> create_interface(fe80::1#123)
> Allocation 32 memory for io_completion_port_add_socket, ptr c9c430
> addto_syslog: Listen normally on 7 v6loop 4 fe80::1 UDP 123
> restrict: op 1 addr fe80::1 mask
> ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff mflags
> 00003000 flags 00000001
> created interface #7: fd=1792, bfd=-1, name=v6loop 4, flags=0x15,
> scope=1, sin=f
> e80::1, Enabled:
> updating interface #7: fd=1792, bfd=-1, name=v6loop 4, flags=0x15,
> scope=1, sin=
> fe80::1, Enabled: new - created
> create_sockets: Total interfaces = 8
> io_open_sockets: maxactivefd 0
> auth_setkey: key 65535 type 4 len 4 3d02856b
> restrict: op 1 addr 0.0.0.0 mask 0.0.0.0 mflags 00000000 flags
> 00000001
> restrict: op 1 addr :: mask 0.0.0.0 mflags 00000000 flags 00000001
> getnetnum given 127.0.0.1, got 127.0.0.1
> restrict: op 1 addr 127.0.0.1 mask 255.255.255.255 mflags 00000000
> flags 0000000
> 0
> getnetnum given 172.16.98.231, got 172.16.98.231
> getnetnum given 255.255.255.255, got 255.255.255.255
> restrict: op 1 addr 172.16.98.231 mask 255.255.255.255 mflags 00000000
> flags 000
> 001c0
> proto_config: code 4 value 0 dvalue 0.008000
> newpeer: cast flags: 0x1 for address: 127.127.1.0
> newpeer: using fd 1832 and our addr 127.0.0.1
> key_expire: at 0 associd 64265
> peer_clear: at 0 next 1 associd 64265 refid INIT
> event at 0 LOCAL(0) 8011 81 mobilize assoc 64265
> newpeer: 127.0.0.1->127.127.1.0 mode 3 vers 4 poll 6 6 flags 0x9 0x1
> ttl 0 key 0
> 0000000
> newpeer: cast flags: 0x1 for address: 172.16.98.231
> newpeer: using fd 1824 and our addr 172.16.99.63
> key_expire: at 0 associd 64266
> peer_clear: at 0 next 2 associd 64266 refid INIT
> event at 0 172.16.98.231 8011 81 mobilize assoc 64266
> newpeer: 172.16.99.63->172.16.98.231 mode 3 vers 4 poll 6 10 flags
> 0x121 0x1 ttl
>  0 key 00000000
> getnetnum given 127.127.1.0, got 127.127.1.0
> event at 0 0.0.0.0 c016 06 restart
> loop_config: item 2 freq 1000000000.000000
> event at 0 0.0.0.0 c012 02 freq_set ntpd 0.000 PPM
> local_clock: mu 0 state 1 poll 3 count 0
> event at 0 0.0.0.0 c011 01 freq_not_set
> refclock_transmit: at 1 127.127.1.0
> refclock_receive: at 1 127.127.1.0
> event at 1 LOCAL(0) 8024 84 reachable
> refclock_sample: n 1 offset 0.000000 disp 0.010000 jitter 0.000000
> clock_filter: n 1 off 0.000000 del 0.000000 dsp 7.937500 jit 0.000000
> select: survivor 127.127.1.0 0.000000
> select: combine offset 0.000000000 jitter 0.000000238
> event at 1 LOCAL(0) 963a 8a sys_peer
> poll_update: at 1 127.127.1.0 poll 6 burst 0 retry 0 head 0 early 2
> next 64
> clock_update: at 1 sample 1 associd 64265
> local_clock: mu 1 state 4 poll 6 count 0
> event at 1 0.0.0.0 c514 04 freq_mode
> local_clock: offset 0.000000000 jit 0.000000238 freq 0.000 stab 0.000
> poll 6
> poll_update: at 1 127.127.1.0 poll 6 burst 0 retry 0 head 0 early 2
> next 64
> auth_agekeys: at 1 keys 1 expired 0
> timer: interface update
> update_interfaces(123)
> write_stats: wander 0.000000 thresh 0.000000, freq 0.000000
> sendpkt(1824, dst=172.16.98.231, src=172.16.99.63, ttl=0, len=48)
> Allocation 32 memory for io_completion_port_sendto, ptr c9c5f0
> Freeing memory for OnWriteComplete, ptr c9c5f0
> Received 48 bytes fd 1824 in buffer 003B8E90 from 172.16.98.231
> transmit: at 2 172.16.99.63->172.16.98.231 mode 3 len 48
> poll_update: at 2 172.16.98.231 poll 6 burst 0 retry 2 head 62 early 2
> next 66
> receive: at 2 172.16.99.63<-172.16.98.231 flags 19 restrict 1c0
> receive: at 2 172.16.99.63<-172.16.98.231 mode 4 len 48
> poll_update: at 2 172.16.98.231 poll 6 burst 5 retry 0 head 62 early 2
> next 2
> event at 2 172.16.98.231 8024 84 reachable
> clock_filter: n 1 off 0.000026 del 0.003959 dsp 7.937501 jit 0.000000
> sendpkt(1824, dst=172.16.98.231, src=172.16.99.63, ttl=0, len=48)
> Allocation 32 memory for io_completion_port_sendto, ptr c9c5f0
> Freeing memory for OnWriteComplete, ptr c9c5f0
> transmit: at 4 172.16.99.63->172.16.98.231 mode 3 len 48
> Received 48 bytes fd 1824 in buffer 003B62D0 from 172.16.98.231
> poll_update: at 4 172.16.98.231 poll 6 burst 4 retry 0 head 122 early
> 2 next 2
> receive: at 4 172.16.99.63<-172.16.98.231 flags 19 restrict 1c0
> restrict: interval 2 headway 8 limit 64
> receive: at 4 172.16.99.63<-172.16.98.231 mode 4 len 48
> clock_filter: n 2 off 0.000266 del 0.002131 dsp 3.937509 jit 0.000240
> sendpkt(1824, dst=172.16.98.231, src=172.16.99.63, ttl=0, len=48)
> Allocation 32 memory for io_completion_port_sendto, ptr c9c5f0
> Freeing memory for OnWriteComplete, ptr c9c5f0
> transmit: at 6 172.16.99.63->172.16.98.231 mode 3 len 48
> Received 48 bytes fd 1824 in buffer 003B8E90 from 172.16.98.231
> poll_update: at 6 172.16.98.231 poll 6 burst 3 retry 0 head 182 early
> 2 next 2
> receive: at 6 172.16.99.63<-172.16.98.231 flags 19 restrict 1c0
> restrict: interval 2 headway 12 limit 64
> receive: at 6 172.16.99.63<-172.16.98.231 mode 4 len 48
> clock_filter: old sample 2
> sendpkt(1824, dst=172.16.98.231, src=172.16.99.63, ttl=0, len=48)
> Allocation 32 memory for io_completion_port_sendto, ptr c9c5f0
> Freeing memory for OnWriteComplete, ptr c9c5f0
> transmit: at 8 172.16.99.63->172.16.98.231 mode 3 len 48
> Received 48 bytes fd 1824 in buffer 003B62D0 from 172.16.98.231
> poll_update: at 8 172.16.98.231 poll 6 burst 2 retry 0 head 242 early
> 2 next 2
> receive: at 8 172.16.99.63<-172.16.98.231 flags 19 restrict 1c0
> restrict: interval 2 headway 16 limit 64
> receive: at 8 172.16.99.63<-172.16.98.231 mode 4 len 48
> clock_filter: old sample 4
> sendpkt(1824, dst=172.16.98.231, src=172.16.99.63, ttl=0, len=48)
> Allocation 32 memory for io_completion_port_sendto, ptr c9c5f0
> Freeing memory for OnWriteComplete, ptr c9c5f0
> transmit: at 10 172.16.99.63->172.16.98.231 mode 3 len 48
> Received 48 bytes fd 1824 in buffer 003B8E90 from 172.16.98.231
> poll_update: at 10 172.16.98.231 poll 6 burst 1 retry 0 head 302 early
> 2 next 2
> receive: at 10 172.16.99.63<-172.16.98.231 flags 19 restrict 1c0
> restrict: interval 2 headway 20 limit 64
> receive: at 10 172.16.99.63<-172.16.98.231 mode 4 len 48
> clock_filter: old sample 6
> sendpkt(1824, dst=172.16.98.231, src=172.16.99.63, ttl=0, len=48)
> Allocation 32 memory for io_completion_port_sendto, ptr c9c5f0
> Received 48 bytes fd 1824 in buffer 003B62D0 from 172.16.98.231
> transmit: at 12 172.16.99.63->172.16.98.231 mode 3 len 48
> Freeing memory for OnWriteComplete, ptr c9c5f0
> poll_update: at 12 172.16.98.231 poll 6 burst 0 retry 0 head 362 early
> 2 next 57
> 
> receive: at 12 172.16.99.63<-172.16.98.231 flags 19 restrict 1c0
> restrict: interval 2 headway 24 limit 64
> receive: at 12 172.16.99.63<-172.16.98.231 mode 4 len 48
> poll_update: at 12 172.16.98.231 poll 6 burst 0 retry 0 head 362 early
> 2 next 56
> 
> clock_filter: n 6 off 0.000446 del 0.001823 dsp 0.187546 jit 0.000330
> select: survivor 127.127.1.0 0.000000
> select: combine offset 0.000000000 jitter 0.000000238
> 
> 
> Any ideas? Has anyone out there been trying a similar XP -> Linux
> synchronization? I also haven't been able to get IPv6 working, but it
> seems like figuring this out comes first.
> 
> Thanks very much,
> Cindy Huyser
> 
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> 
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