n Behalf Of
>Yang, Sheng
>Sent: 2007年12月27日 10:29
>To: Yves Dorfsman
>Cc: kvm-devel@lists.sourceforge.net
>Subject: Re: [kvm-devel] keeping time
>
>On Wednesday 26 December 2007 22:35:29 Yves Dorfsman wrote:
>> What is the recommended way to keep the time correct on a
On Thursday 27 December 2007 14:51:06 Yves Dorfsman wrote:
> On Thu, 27 Dec 2007, Yang, Sheng wrote:
> > What's your guest kernel version?
>
> 2.6.22
>
> > When I debug my in kernel PIT(not sent yet, though kept for months), I
> > found the kernel version have something to do with the timer accurac
On Thu, 27 Dec 2007, Yang, Sheng wrote:
> What's your guest kernel version?
2.6.22
> When I debug my in kernel PIT(not sent yet, though kept for months), I found
> the kernel version have something to do with the timer accuracy. On my
> limited test, the kernel 2.6.18, 2.6.20, 2.6.22 with defau
On Wednesday 26 December 2007 22:35:29 Yves Dorfsman wrote:
> What is the recommended way to keep the time correct on a UNIX KVM machine
> ?
>
> I am using Linux x86_64 (gentoo) both as a host and as a guest, and can't
> keep the time straight on the guest. Ntpd eventually gives up because the
> cl
On Wed, 26 Dec 2007, Izik Eidus wrote:
> ohhh i forgat to mention to boot the linux without apic when you run the -tdf
> (if i remember it is noapic)
Yes I verified, "noapic". Now that's weird the clock is a little bit
fast (as opposed to very slow previously). It got 7 second too fast, in
Yves Dorfsman wrote:
> On Wed, 26 Dec 2007, Avi Kivity wrote:
>
>
>> ntp is too clever for virtual machines. What happens if you don't enable it?
>>
>
> Same thing.
>
>
>> Please provide the guest's /proc/interrupts.
>>
>
> more /proc/interrupts
> CPU0
>0: 270
On Wed, 26 Dec 2007, Avi Kivity wrote:
> ntp is too clever for virtual machines. What happens if you don't enable it?
Same thing.
>
> Please provide the guest's /proc/interrupts.
more /proc/interrupts
CPU0
0: 27066XT-PIC-XTtimer
1: 9XT-PIC-XT
Yves Dorfsman wrote:
> What is the recommended way to keep the time correct on a UNIX KVM machine ?
>
> I am using Linux x86_64 (gentoo) both as a host and as a guest, and can't
> keep the time straight on the guest. Ntpd eventually gives up because the
> clock is too wanky.
>
>
ntp is too cl
Yves Dorfsman wrote:
> What is the recommended way to keep the time correct on a UNIX KVM machine ?
>
what happen when you try:
-no-kvm-irqchip -tdf ?
(you arent runing it with -no-kvm-irqchip right now right?, if you dont
it is probably bug)
> I am using Linux x86_64 (gentoo) both as a host an
What is the recommended way to keep the time correct on a UNIX KVM machine ?
I am using Linux x86_64 (gentoo) both as a host and as a guest, and can't
keep the time straight on the guest. Ntpd eventually gives up because the
clock is too wanky.
I run into this problem both with versions 28 and
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