Date: Wed, 21 Jan 2009 15:00:55 -0500 From: Michael Proto <mike@jellydonut.org> To: Jeffrey Williams <jeff@sailorfej.net> Cc: freebsd-stable@freebsd.org Subject: Re: FreeBSD 7, runaway clock as guest OS on Microsoft Virtual Server Message-ID: <1de79840901211200o7cd53ba8xfc23a7ab8c4ea6e5@mail.gmail.com> In-Reply-To: <49777A7E.30904@sailorfej.net> References: <49777A7E.30904@sailorfej.net>
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On Wed, Jan 21, 2009 at 2:41 PM, Jeffrey Williams <jeff@sailorfej.net> wrote:
> Hi Folks,
>
> I am trying to run FreeBSD 7 on Microsoft Virtual Server 2005 R2, Windows
> Server 2003, on a Dell 2950.
>
> I am having a problem with the system clock running excessively fast, I
> initially tried installing 7.1 release but received a nearly continuous
> stream of the "calcru: runtime went backward errors", I tried rolling back
> to 7.0, and it improved somewhat, but I still received regular "calcru"
> errors, and it the system clock was running to fast for ntpd to keep up with
> it, I set sysctl kern.timecounter.hardware to i8254 (it tries to default to
> ACPI-safe), which helped more, ntpd is now able to keep pace with it, but
> only barely, and I haven't seen any "calcru" errors yet.
>
> From the boot time dmesg, on the CPU line, the frequency reported with in
> the parenthesizes varies on almost every reboot.
>
> Are there any other adjustments I can make to get this under control?
>
> Following are samples of sysctl values, dmesg, and a short log sample to
> show the time and time reset rates.
>
> ******** sysctl grep clockrate:
>
> kern.clockrate: { hz = 1000, tick = 1000, profhz = 1024, stathz = 128 }
> hw.clockrate: 1061
>
> ******** sysctl grep timecounter:
>
> kern.timecounter.tick: 1
> kern.timecounter.choice: TSC(800) ACPI-safe(850) i8254(0) dummy(-1000000)
> kern.timecounter.hardware: i8254
> kern.timecounter.nsetclock: 12
> kern.timecounter.ngetmicrotime: 8071302
> kern.timecounter.ngetnanotime: 9
> kern.timecounter.ngetbintime: 0
> kern.timecounter.ngetmicrouptime: 2310540
> kern.timecounter.ngetnanouptime: 3870
> kern.timecounter.ngetbinuptime: 237939
> kern.timecounter.nmicrotime: 48722
> kern.timecounter.nnanotime: 2143
> kern.timecounter.nbintime: 50865
> kern.timecounter.nmicrouptime: 4498
> kern.timecounter.nnanouptime: 1
> kern.timecounter.nbinuptime: 477504
> kern.timecounter.stepwarnings: 0
> kern.timecounter.tc.i8254.mask: 4294967295
> kern.timecounter.tc.i8254.counter: 3077011530
> kern.timecounter.tc.i8254.frequency: 1193182
> kern.timecounter.tc.i8254.quality: 0
> kern.timecounter.tc.ACPI-safe.mask: 16777215
> kern.timecounter.tc.ACPI-safe.counter: 14993826
> kern.timecounter.tc.ACPI-safe.frequency: 3579545
> kern.timecounter.tc.ACPI-safe.quality: 850
> kern.timecounter.tc.TSC.mask: 4294967295
> kern.timecounter.tc.TSC.counter: 3664196446
> kern.timecounter.tc.TSC.frequency: 1061252458
> kern.timecounter.tc.TSC.quality: 800
> kern.timecounter.smp_tsc: 0
>
> ********** sample log:
>
> Jan 20 19:25:08 host ntpd[1829]: time reset -12.179675 s
> Jan 20 19:25:08 host ntpd[1829]: kernel time sync disabled 6041
> Jan 20 21:25:34 host ntpd[1829]: time reset -17.665523 s
> Jan 20 21:25:34 host ntpd[1829]: kernel time sync enabled 2001
> Jan 20 23:43:24 host ntpd[1829]: kernel time sync enabled 6001
> Jan 20 23:59:15 host ntpd[1829]: time reset -67.677336 s
> Jan 20 23:59:15 host ntpd[1829]: kernel time sync enabled 2001
> Jan 21 00:51:31 host ntpd[1829]: kernel time sync enabled 6001
> Jan 21 00:51:27 host ntpd[1829]: time reset -11.695334 s
> Jan 21 00:51:27 host ntpd[1829]: kernel time sync enabled 2001
>
> ********** dmesg.boot:
>
> 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-p9 #0: Tue Jan 13 19:45:51 PST 2009
> root@host:/usr/obj/usr/src/sys/GENERIC
> Timecounter "i8254" frequency 1193182 Hz quality 0
> CPU: Intel(R) Xeon(R) CPU E5320 @ 1.86GHz (1364.45-MHz 686-class
> CPU)
> Origin = "GenuineIntel" Id = 0x6fb Stepping = 11
> Features=0x7c0a97b<FPU,VME,PSE,TSC,MSR,PAE,CX8,SEP,PGE,CMOV,ACPI,MMX,FXSR,SSE,SSE2>
> AMD Features2=0x1<LAHF>
> Cores per package: 4
> real memory = 536805376 (511 MB)
> avail memory = 511385600 (487 MB)
> kbd1 at kbdmux0
> ath_hal: 0.9.20.3 (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413, RF5413)
> hptrr: HPT RocketRAID controller driver v1.1 (Jan 13 2009 19:45:26)
> acpi0: <A M I OEMRSDT> on motherboard
> acpi0: [ITHREAD]
> acpi0: Power Button (fixed)
> acpi0: reservation of 0, a0000 (3) failed
> acpi0: reservation of 100000, 1ff00000 (3) failed
> Timecounter "ACPI-safe" frequency 3579545 Hz quality 850
> acpi_timer0: <24-bit timer at 3.579545MHz> port 0x408-0x40b on acpi0
> pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
> pci0: <ACPI PCI bus> on pcib0
> isab0: <PCI-ISA bridge> at device 7.0 on pci0
> isa0: <ISA bus> on isab0
> atapci0: <Intel PIIX4 UDMA33 controller> port
> 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0xffa0-0xffaf at device 7.1 on pci0
> ata0: <ATA channel 0> on atapci0
> ata0: [ITHREAD]
> ata1: <ATA channel 1> on atapci0
> ata1: [ITHREAD]
> pci0: <bridge> at device 7.3 (no driver attached)
> vgapci0: <VGA-compatible display> mem 0xf8000000-0xfbffffff at device 8.0 on
> pci0
> de0: <Digital 21140A Fast Ethernet> port 0xec00-0xec7f mem
> 0xfebff000-0xfebfffff irq 11 at device 10.0 on pci0
> de0: 21140A [10-100Mb/s] pass 2.0
> de0: using obsoleted if_watchdog interface
> de0: Ethernet address: 00:03:ff:48:a7:20
> de0: [ITHREAD]
> atkbdc0: <Keyboard controller (i8042)> port 0x60,0x64 irq 1 on acpi0
> atkbd0: <AT Keyboard> irq 1 on atkbdc0
> kbd0 at atkbd0
> atkbd0: [GIANT-LOCKED]
> atkbd0: [ITHREAD]
> psm0: <PS/2 Mouse> irq 12 on atkbdc0
> psm0: [GIANT-LOCKED]
> psm0: [ITHREAD]
> psm0: model IntelliMouse, device ID 3
> sio0: <16550A-compatible COM port> port 0x3f8-0x3ff irq 4 flags 0x10 on
> acpi0
> sio0: type 16550A
> sio0: [FILTER]
> sio1: <16550A-compatible COM port> port 0x2f8-0x2ff irq 3 on acpi0
> sio1: type 16550A
> sio1: [FILTER]
> fdc0: <floppy drive controller (FDE)> port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on
> acpi0
> fdc0: does not respond
> device_attach: fdc0 attach returned 6
> fdc0: <floppy drive controller (FDE)> port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on
> acpi0
> fdc0: does not respond
> device_attach: fdc0 attach returned 6
> pmtimer0 on isa0
> orm0: <ISA Option ROMs> at iomem 0xc0000-0xcbfff,0xcc000-0xcc7ff pnpid
> ORM0000 on isa0
> ppc0: <Parallel port> at port 0x378-0x37f irq 7 on isa0
> ppc0: Generic chipset (EPP/NIBBLE) in COMPATIBLE mode
> ppbus0: <Parallel port bus> on ppc0
> ppbus0: [ITHREAD]
> plip0: <PLIP network interface> on ppbus0
> lpt0: <Printer> on ppbus0
> lpt0: Interrupt-driven port
> ppi0: <Parallel I/O> on ppbus0
> ppc0: [GIANT-LOCKED]
> ppc0: [ITHREAD]
> sc0: <System console> at flags 0x100 on isa0
> sc0: VGA <16 virtual consoles, flags=0x300>
> vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
> Timecounter "TSC" frequency 1364446545 Hz quality 800
> Timecounters tick every 1.000 msec
> hptrr: no controller detected.
> ad0: 81918MB <Virtual HD 1. 1> at ata0-master WDMA2
> acd0: DVDROM <Virtual CD/> at ata1-master PIO4
> Trying to mount root from ufs:/dev/ad0s1a
>
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>
I use VMware, not VirtualServer, but you might want to set kern.hz in
your loader.conf to something less than 1000. I use the following:
kern.hz="100"
That, combined with vmware-tools' option to sync the VM clock to the
host works very well for me.
-Proto
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