Version vom 21. Februar 2024, 13:11 Uhr

Aufbau eines NTP Servers mit Linux mit DCF-77 und GPS als Zeitquellen

Linux Version

cat /etc/devuan_version 
daedalus

[    0.000000] Linux version 6.1.0-17-amd64 (debian-kernel@lists.debian.org) (gcc-12 (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debia

n) 2.40) #1 SMP PREEMPT_DYNAMIC Debian 6.1.69-1 (2023-12-30)

[    0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-6.1.0-17-amd64 root=UUID=eb0e22d6-bf4c-46bf-b7dd-bc4a0a9ef1fc ro quiet
[    0.000000] BIOS-provided physical RAM map:

[    0.000000] efi: EFI v2.31 by American Megatrends
[    0.000000] efi: ACPI=0xac532000 ACPI 2.0=0xac532000 SMBIOS=0xae1e9a98 MOKvar=0xad793000 
[    0.000000] secureboot: Secure boot disabled
[    0.000000] SMBIOS 2.8 present.
[    0.000000] DMI: FUJITSU FUTRO S920/D3313-A1, BIOS V4.6.5.4 R1.18.0 for D3313-A1x 07/10/2018
[    0.000000] tsc: Fast TSC calibration using PIT
[    0.000000] tsc: Detected 1497.160 MHz processor

[    0.309340] smpboot: CPU0: AMD GX-415GA SOC with Radeon(tm) HD Graphics (family: 0x16, model: 0x0, stepping: 0x1)

DCF-77 Empfänger

[  373.128888] usb 5-1: new full-speed USB device number 5 using ohci-pci
[  373.337304] usb 5-1: New USB device found, idVendor=0403, idProduct=e88a, bcdDevice= 6.00
[  373.337333] usb 5-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  373.337343] usb 5-1: Product: Expert mouseCLOCK USB II
[  373.337351] usb 5-1: Manufacturer: GUDEADS
[  373.337359] usb 5-1: SerialNumber: XXX
[  373.344527] ftdi_sio 5-1:1.0: FTDI USB Serial Device converter detected
[  373.344720] usb 5-1: Detected FT232R
[  373.351128] usb 5-1: FTDI USB Serial Device converter now attached to ttyUSB0

GPS Empfänger

[  320.052888] usb 5-4: new full-speed USB device number 4 using ohci-pci
[  320.247155] usb 5-4: New USB device found, idVendor=1546, idProduct=01a7, bcdDevice= 1.00
[  320.247183] usb 5-4: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[  320.247194] usb 5-4: Product: u-blox 7 - GPS/GNSS Receiver
[  320.247202] usb 5-4: Manufacturer: u-blox AG - www.u-blox.com
[  320.251377] cdc_acm 5-4:1.0: ttyACM1: USB ACM device

Konfiguration DCF-77 Empfänger

/etc/ntpsec/ntp.conf

server 127.127.8.0 mode 19 # 

• https://www.ntp.org/documentation/drivers/driver8/

server 127.127.8.0-3 mode 19
   Gude Analog- und Digitalsystem GmbH ‘Expert mouseCLOCK USB v2.0’

root@ntpsrv:~# ls -l /dev/refclock-0 
lrwxrwxrwx 1 root root 12 19. Feb 18:57 /dev/refclock-0 -> /dev/ttyUSB0

Konfiguration GPS Empfänger

cat /etc/default/gpsd 
# Start the gpsd daemon automatically at boot time
START_DAEMON="true"

# Devices gpsd should collect to at boot time.
# They need to be read/writeable, either by user gpsd or the group dialout.
DEVICES="/dev/ttyACM1"

# Other options you want to pass to gpsd
GPSD_OPTIONS="-n"

# Automatically hot add/remove USB GPS devices via gpsdctl
USBAUTO="true"

• https://www.ntp.org/documentation/drivers/driver28/

/etc/ntp/ntpsec.conf

# gps SHM from gpsd
server 127.127.28.0 

• https://www.ntpsec.org/

Doku

Offset für GPS unt DCF-77 noch NICHT eingestellt:

root@ntpsrv:~# ntpq -p
    remote                                   refid      st t when poll reach   delay   offset   jitter
=======================================================================================================
+ntp.netnod.se                           .PPS.            1 u   57   64   37  34.5104  13.1120   1.5906
+any.time.nl                             85.199.214.102   2 u   66   64   76  15.8433  12.8707   1.4686
RAWDCF_MOUSECLOCK(0)                    .DCFa.            0 l    7   64   17   0.0000   8.4088   2.2834
SHM(0)                                  .SHM.             0 l    7   64   77   0.0000 -46.5409   2.0497

Zeitdrift ohne NTP Synchronisierung

Linux / AMD FX8350

Hardware:

[    0.133796] smpboot: CPU0: AMD FX(tm)-8350 Eight-Core Processor (family: 0x15, model: 0x2, stepping: 0x0)
Mainboard:  Product Name: 990FXA-UD3

[    0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1910969940391419 ns
[    0.000000] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 133484873504 ns
[    0.000002] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x39ebec5d7e4, max_idle_ns: 440795251285 ns
[    0.153208] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911260446275000 ns
[    0.185220] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI EDR HPX-Type3]
[    0.191163] PTP clock support registered
[    0.200080] clocksource: Switched to clocksource tsc-early
[    0.212174] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns
[    1.071196] rtc_cmos 00:05: setting system clock to 2023-12-09T17:15:40 UTC (1702142140)
[    1.093819] sched_clock: Marking stable (1101005181, -7995516)->(1109656560, -16646895)
[    1.239068] tsc: Refined TSC clocksource calibration: 4018.324 MHz
[    1.239086] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x39ebfa4a18d, max_idle_ns: 440795326093 ns
[    1.239162] clocksource: Switched to clocksource tsc
[    1.319020] clk: Disabling unused clocks

[    0.000000] ACPI: HPET 0x00000000BE1EAD10 000038 (v01 ALASKA A M I    01072009 AMI  00000005)
[    0.000000] ACPI: Reserving HPET table memory at [mem 0xbe1ead10-0xbe1ead47]
[    0.000000] ACPI: HPET id: 0x43538210 base: 0xfed00000
[    0.000000] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 133484873504 ns
[    0.008000] tsc: using HPET reference calibration
[    0.198066] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0
[    0.198070] hpet0: 3 comparators, 32-bit 14.318180 MHz counter
[    1.071221] rtc_cmos 00:05: alarms up to one month, y3k, 114 bytes nvram, hpet irqs

cat /sys/devices/system/clocksource/clocksource0/available_clocksource
tsc hpet acpi_pm 

cat /sys/devices/system/clocksource/clocksource0/current_clocksource 
tsc

Linux host 6.6.4-200.fc39.x86_64 #1 SMP PREEMPT_DYNAMIC Sun Dec  3 18:13:11 UTC 2023 x86_64 GNU/Linux

Linux / AMD GX4-15GA

Hardware:

[    0.309340] smpboot: CPU0: AMD GX-415GA SOC with Radeon(tm) HD Graphics (family: 0x16, model: 0x0, stepping: 0x1)

Product Name: FUTRO S920
Version: V4.6.5.4 R1.18.0 for D3313-A1x
Product Name: D3313-A1
Version: S26361-D3313-A1 

[    0.037069] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645519600211568 ns
[    0.153972] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 133484873504 ns
[    0.174000] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1594a7e9ed0, max_idle_ns: 440795279371 ns
[    0.323732] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[    0.405946] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI HPX-Type3]
[    0.418292] PTP clock support registered
[    0.432255] clocksource: Switched to clocksource tsc-early
[    0.447905] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns
[    1.433433] rtc_cmos 00:06: setting system clock to 2024-02-19T17:48:54 UTC (1708364934)
[    1.486358] sched_clock: Marking stable (1485415235, 621164)->(1492365924, -6329525)
[    1.496671] tsc: Refined TSC clocksource calibration: 1497.191 MHz
[    1.496685] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1594c522ce2, max_idle_ns: 440795237962 ns
[    1.496726] clocksource: Switched to clocksource tsc

[    0.036825] ACPI: PM-Timer IO Port: 0x808
[    0.154564] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
[    0.174017] Calibrating delay loop (skipped), value calculated using timer frequency.. 2994.32 BogoMIPS (lpj=5988640)
[    0.467421] workingset: timestamp_bits=36 max_order=20 bucket_order=0
[    5.429941] sp5100_tco: SP5100/SB800 TCO WatchDog Timer Driver

cat /sys/devices/system/clocksource/clocksource0/available_clocksource
tsc hpet acpi_pm 

cat /sys/devices/system/clocksource/clocksource0/current_clocksource
tsc

Linux host 6.1.0-17-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.69-1 (2023-12-30) x86_64 GNU/Linux

FreeBSD / Intel Celeron N2840

CPU: Intel(R) Celeron(R) CPU  N2840  @ 2.16GHz (2166.76-MHz K8-class CPU)
 Origin="GenuineIntel"  Id=0x30678  Family=0x6  Model=0x37  Stepping=8

efirtc0: <EFI Realtime Clock>
efirtc0: registered as a time-of-day clock, resolution 1.000000s
atrtc0: <AT realtime clock> port 0x70-0x77 on acpi0
atrtc0: registered as a time-of-day clock, resolution 1.000000s

Event timer "LAPIC" quality 600
efirtc0: <EFI Realtime Clock>
efirtc0: registered as a time-of-day clock, resolution 1.000000s
atrtc0: <AT realtime clock> port 0x70-0x77 on acpi0
atrtc0: registered as a time-of-day clock, resolution 1.000000s
Event timer "RTC" frequency 32768 Hz quality 0
hpet0: <High Precision Event Timer> iomem 0xfed00000-0xfed003ff irq 8 on acpi0
Timecounter "HPET" frequency 14318180 Hz quality 950
Event timer "HPET" frequency 14318180 Hz quality 450
Event timer "HPET1" frequency 14318180 Hz quality 440
Event timer "HPET2" frequency 14318180 Hz quality 440
attimer0: <AT timer> port 0x40-0x43,0x50-0x53 irq 0 on acpi0
Timecounter "i8254" frequency 1193182 Hz quality 0
Event timer "i8254" frequency 1193182 Hz quality 100
Timecounter "ACPI-fast" frequency 3579545 Hz quality 900
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x408-0x40b on acpi0
Timecounter "TSC-low" frequency 1083333153 Hz quality 1000
Timecounters tick every 1.000 msec

kern.timecounter.tsc_shift: 1
kern.timecounter.smp_tsc_adjust: 0
kern.timecounter.smp_tsc: 1
kern.timecounter.invariant_tsc: 1
kern.timecounter.fast_gettime: 1
kern.timecounter.tick: 1
kern.timecounter.choice: TSC-low(1000) ACPI-fast(900) i8254(0) HPET(950) dummy(-1000000)
kern.timecounter.hardware: TSC-low
kern.timecounter.alloweddeviation: 5
kern.timecounter.timehands_count: 2
kern.timecounter.stepwarnings: 0
kern.timecounter.tc.TSC-low.quality: 1000
kern.timecounter.tc.TSC-low.frequency: 1083333153
kern.timecounter.tc.TSC-low.counter: 3809858413
kern.timecounter.tc.TSC-low.mask: 4294967295
kern.timecounter.tc.ACPI-fast.quality: 900
kern.timecounter.tc.ACPI-fast.frequency: 3579545
kern.timecounter.tc.ACPI-fast.counter: 6584828
kern.timecounter.tc.ACPI-fast.mask: 16777215
kern.timecounter.tc.i8254.quality: 0
kern.timecounter.tc.i8254.frequency: 1193182
kern.timecounter.tc.i8254.counter: 64740
kern.timecounter.tc.i8254.mask: 65535
kern.timecounter.tc.HPET.quality: 950
kern.timecounter.tc.HPET.frequency: 14318180
kern.timecounter.tc.HPET.counter: 3233768197
kern.timecounter.tc.HPET.mask: 4294967295

kern.eventtimer.choice: LAPIC(600) HPET(450) HPET1(440) HPET2(440) i8254(100) RTC(0)
kern.eventtimer.et.i8254.quality: 100
kern.eventtimer.et.i8254.frequency: 1193182
kern.eventtimer.et.i8254.flags: 1
kern.eventtimer.et.HPET2.quality: 440
kern.eventtimer.et.HPET2.frequency: 14318180
kern.eventtimer.et.HPET2.flags: 3
kern.eventtimer.et.HPET1.quality: 440
kern.eventtimer.et.HPET1.frequency: 14318180
kern.eventtimer.et.HPET1.flags: 3
kern.eventtimer.et.HPET.quality: 450
kern.eventtimer.et.HPET.frequency: 14318180
kern.eventtimer.et.HPET.flags: 3
kern.eventtimer.et.RTC.quality: 0
kern.eventtimer.et.RTC.frequency: 32768
kern.eventtimer.et.RTC.flags: 17
kern.eventtimer.et.LAPIC.quality: 600
kern.eventtimer.et.LAPIC.frequency: 2166666306
kern.eventtimer.et.LAPIC.flags: 7
kern.eventtimer.periodic: 0
kern.eventtimer.timer: LAPIC
kern.eventtimer.idletick: 0
kern.eventtimer.singlemul: 2

FreeBSD n2840 13.2-RELEASE-p2 FreeBSD 13.2-RELEASE-p2 GENERIC amd64