Try adding either,


to /boot/loader.conf

Reboot the machine and check your time.

The first line is the patch originally noted in the VMWare KB the latter is from the FreeBSD handbook on the subject.


On Jan 14, 2009, at 9:09 AM, wrote:

Hi All,

        I'm facing some strange behavior with an skew in the system clock.
The hardware is a Dell PowerEdge 2950III, running two instances of FreeBSD 7.0-RELEASE-p5 - amd64 over an ESXi hipervisor. To both were allocated 4 processors and 4 GB of RAM, and dmesg for both are identical. I'm using clockspeed to synchronize the clock, but just one of them is delaying the clock a lot.
        The hardware clock is ok as far as the other virtual machine.
        Where should I start to investigate?

- Marcelo

        Dmesg is following:

Copyright (c) 1992-2008 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 is a registered trademark of The FreeBSD Foundation.
FreeBSD 7.0-RELEASE-p5 #0: Mon Nov  3 13:19:30 BRST 2008
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Xeon(R) CPU E5410 @ 2.33GHz (2357.36-MHz K8- class CPU)
 Origin = "GenuineIntel"  Id = 0x10678  Stepping = 8

 AMD Features=0x20100800<SYSCALL,NX,LM>
 AMD Features2=0x1<LAHF>
usable memory = 4013707264 (3827 MB)
avail memory  = 3883839488 (3703 MB)
ACPI APIC Table: <PTLTD          APIC  >
FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs
cpu0 (BSP): APIC ID:  0
cpu1 (AP): APIC ID:  1
cpu2 (AP): APIC ID:  2
cpu3 (AP): APIC ID:  3
MADT: Forcing active-low polarity and level trigger for SCI
ioapic0 <Version 1.1> irqs 0-23 on motherboard
kbd1 at kbdmux0
ath_hal: (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413, RF5413)
hptrr: HPT RocketRAID controller driver v1.1 (Nov  3 2008 13:19:19)
acpi0: <PTLTD   RSDT> on motherboard
acpi0: [ITHREAD]
acpi0: Power Button (fixed)
Timecounter "ACPI-safe" frequency 3579545 Hz quality 850
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x1008-0x100b on acpi0
cpu0: <ACPI CPU> on acpi0
acpi_throttle0: <ACPI CPU Throttling> on cpu0
cpu1: <ACPI CPU> on acpi0
acpi_throttle1: <ACPI CPU Throttling> on cpu1
acpi_throttle1: failed to attach P_CNT
device_attach: acpi_throttle1 attach returned 6
cpu2: <ACPI CPU> on acpi0
acpi_throttle2: <ACPI CPU Throttling> on cpu2
acpi_throttle2: failed to attach P_CNT
device_attach: acpi_throttle2 attach returned 6
cpu3: <ACPI CPU> on acpi0
acpi_throttle3: <ACPI CPU Throttling> on cpu3
acpi_throttle3: failed to attach P_CNT
device_attach: acpi_throttle3 attach returned 6

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