Date: Thu, 28 Mar 2002 03:47:47 -0800 From: Kris Kennaway <kris@obsecurity.org> To: Ollivier Robert <roberto@eurocontrol.fr> Cc: FreeBSD Current Users' list <freebsd-current@FreeBSD.ORG> Subject: Re: Time counter broken? Message-ID: <20020328034747.B98857@xor.obsecurity.org> In-Reply-To: <20020328083849.GA48070@caerdonn.eurocontrol.fr>; from roberto@eurocontrol.fr on Thu, Mar 28, 2002 at 09:38:49AM %2B0100 References: <20020328083849.GA48070@caerdonn.eurocontrol.fr>
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On Thu, Mar 28, 2002 at 09:38:49AM +0100, Ollivier Robert wrote:
> Since I upgraded to my CURRENT machine into two days ago sources, I'm
> getting this from ntpd.
>=20
> Mar 28 07:37:03 caerdonn ntpd[171]: time reset -1.151848 s
> Mar 28 08:00:47 caerdonn ntpd[171]: time reset -1.222628 s
> Mar 28 08:30:03 caerdonn ntpd[171]: time reset -1.673229 s
> Mar 28 08:39:00 caerdonn ntpd[171]: time reset -0.199266 s
> Mar 28 08:47:41 caerdonn ntpd[171]: time reset -0.749421 s
> Mar 28 08:56:31 caerdonn ntpd[171]: time reset -0.379469 s
> Mar 28 09:05:16 caerdonn ntpd[171]: time reset -0.689588 s
> Mar 28 09:13:57 caerdonn ntpd[171]: time reset -0.377961 s
> Mar 28 09:24:50 caerdonn ntpd[171]: time reset -0.555416 s
> Mar 28 09:31:19 caerdonn ntpd[171]: time reset -0.683943 s
I'm getting the opposite skewing from all the machines inthe bento
cluster:
Mar 27 04:30:46 <ntp.notice> gohan13 ntpd[119]: time reset 1.014358 s
Mar 27 04:46:08 <ntp.notice> gohan13 ntpd[119]: time reset 1.289923 s
Mar 27 05:01:19 <ntp.notice> gohan13 ntpd[119]: time reset 0.914678 s
Mar 27 05:19:38 <ntp.notice> gohan13 ntpd[119]: time reset 1.104316 s
Mar 27 05:36:52 <ntp.notice> gohan13 ntpd[119]: time reset 1.038846 s
Mar 27 05:54:08 <ntp.notice> gohan13 ntpd[119]: time reset 1.040943 s
Mar 27 06:21:20 <ntp.notice> gohan13 ntpd[119]: time reset 1.215328 s
Mar 27 06:37:43 <ntp.notice> gohan13 ntpd[119]: time reset 1.037184 s
Mar 27 06:52:45 <ntp.notice> gohan13 ntpd[119]: time reset 0.907746 s
Mar 27 07:11:07 <ntp.notice> gohan13 ntpd[119]: time reset 1.238456 s
Mar 27 07:29:44 <ntp.notice> gohan13 ntpd[119]: time reset 1.247531 s
Mar 27 07:45:58 <ntp.notice> gohan13 ntpd[119]: time reset 0.978832 s
Mar 27 08:07:28 <ntp.notice> gohan13 ntpd[119]: time reset 0.970773 s
Mar 27 08:22:39 <ntp.notice> gohan13 ntpd[119]: time reset 0.914377 s
Mar 27 08:39:51 <ntp.notice> gohan13 ntpd[119]: time reset 1.166639 s
Mar 27 08:58:22 <ntp.notice> gohan13 ntpd[119]: time reset 1.243798 s
Mar 27 09:13:37 <ntp.notice> gohan13 ntpd[119]: time reset 0.982809 s
Mar 27 09:35:17 <ntp.notice> gohan13 ntpd[119]: time reset 0.978869 s
[...]
Copyright (c) 1992-2002 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
The Regents of the University of California. All rights reserved.
FreeBSD 5.0-CURRENT #4: Sun Mar 24 03:55:58 PST 2002
kris@bento.FreeBSD.org:/a/obj/local0/scratch/usr/src/sys/CLUSTER
Preloaded elf kernel "/boot/kernel/kernel" at 0xc04c9000.
Timecounter "i8254" frequency 1193182 Hz
Timecounter "TSC" frequency 797579626 Hz
CPU: Pentium III/Pentium III Xeon/Celeron (797.58-MHz 686-class CPU)
Origin =3D "GenuineIntel" Id =3D 0x683 Stepping =3D 3
Features=3D0x387f9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,=
CMOV,PAT,PSE36,PN,MMX,FXSR,SSE
>
real memory =3D 535560192 (523008K bytes)
avail memory =3D 515624960 (503540K bytes)
pnpbios: Bad PnP BIOS data checksum
Pentium Pro MTRR support enabled
Using $PIR table, 10 entries at 0xc00f31d0
acpi0: <CAYMAN 8C1A100A> on motherboard
acpi0: power button is handled as a fixed feature programming model.
ACPI timer looks GOOD min =3D 3, max =3D 3, width =3D 1
ACPI timer looks GOOD min =3D 3, max =3D 3, width =3D 1
ACPI timer looks GOOD min =3D 3, max =3D 4, width =3D 2
ACPI timer looks GOOD min =3D 3, max =3D 3, width =3D 1
ACPI timer looks GOOD min =3D 3, max =3D 3, width =3D 1
ACPI timer looks GOOD min =3D 3, max =3D 3, width =3D 1
ACPI timer looks GOOD min =3D 3, max =3D 4, width =3D 2
ACPI timer looks GOOD min =3D 3, max =3D 3, width =3D 1
ACPI timer looks GOOD min =3D 3, max =3D 3, width =3D 1
ACPI timer looks GOOD min =3D 3, max =3D 4, width =3D 2
Timecounter "ACPI-fast" frequency 3579545 Hz
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x408-0x40b on acpi0
acpi_cpu0: <CPU> on acpi0
acpi_pcib0: <Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci0: <PCI bus> on acpi_pcib0
pci0: <display, VGA> at device 1.0 (no driver attached)
pcib1: <PCI-PCI bridge> at device 30.0 on pci0
pci1: <PCI bus> on pcib1
fxp0: <Intel Pro 10/100B/100+ Ethernet> port 0xde80-0xdebf mem 0xff700000-0=
xff7fffff,0xff8fe000-0xff8fe
fff irq 10 at device 1.0 on pci1
fxp0: Ethernet address 00:d0:b7:c3:9c:2c
inphy0: <i82555 10/100 media interface> on miibus0
inphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
pci1: <multimedia, audio> at device 7.0 (no driver attached)
isab0: <PCI-ISA bridge> at device 31.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel ICH ATA66 controller> port 0xffa0-0xffaf at device 31.1 on =
pci0
ata0: at 0x1f0 irq 14 on atapci0
ata1: at 0x170 irq 15 on atapci0
uhci0: <Intel 82801AA (ICH) USB controller> port 0xef80-0xef9f irq 10 at de=
vice 31.2 on pci0
usb0: <Intel 82801AA (ICH) USB controller> on uhci0
usb0: USB revision 1.0
uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
pci0: <serial bus, SMBus> at device 31.3 (no driver attached)
atkbdc0: <Keyboard controller (i8042)> port 0x64,0x60 irq 1 on acpi0
sio0 port 0x3f8-0x3ff irq 4 on acpi0
sio0: type 16550A, console
sio1 port 0x2f8-0x2ff irq 3 on acpi0
sio1: type 16550A
ppc0 port 0x378-0x37f irq 7 on acpi0
ppc0: Generic chipset (EPP/NIBBLE) in COMPATIBLE mode
plip0: <PLIP network interface> on ppbus0
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
ppi0: <Parallel I/O> on ppbus0
npx0: <math processor> on motherboard
npx0: INT 16 interface
orm0: <Option ROMs> at iomem 0xc8000-0xc8fff,0xc0000-0xc7fff on isa0
fdc0: direction bit not set
fdc0: cmd 3 failed at out byte 1 of 3
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=3D0x100>
ad0: 29314MB <IBM-DTLA-307030> [59560/16/63] at ata0-master UDMA66
kern.timecounter.nbintime: 3597243
kern.timecounter.nbinuptime: 86228810
kern.timecounter.nmicrotime: 3597236
kern.timecounter.nnanotime: 7
kern.timecounter.nmicrouptime: 0
kern.timecounter.nnanouptime: 74
kern.timecounter.ngetmicrotime: 2665
kern.timecounter.ngetnanotime: 0
kern.timecounter.ngetmicrouptime: 22042434
kern.timecounter.ngetnanouptime: 33380
kern.timecounter.hardware: ACPI-fast
Kris
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