similar to: How to configure time on virtual clients using KVM?

hello, a big time drift appears along time on a guest VM (time is going too slow on the guest). here the setup: ~ physical machine ~ Centos 6.0 x86_64 time set with ntpd Intel(R) Xeon(R) CPU X5650 /proc/cpuinfo shows the "constant_tsc" bit. ~ guest OS ~ Centos 6.0 x86_64 /proc/cpuinfo : processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 13

Well, to the clock being fast work around, I kind of found a way to work around it for now... 1) use a distribution that supports VMI (VMware's paravirtualization) 2) enable VMI paravirtualization support in VMware Workstation 6 VM's profile 3) use vmi-timer as the clocksource (as opposed to pit, acpi_pm, etc.) 4) CPU must be constantly at maximum frequency For 1), I use Ubuntu 7.10 For

Hi everyone: Just a follow up on the fast clock issue: "Can you double-check that 'cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq' outputs the same number as your 'cpuKHZ' setting in your config.ini file?" There is no cpufreq directory under /sys/devices/system/cpu/cpu0; all I see is "cache" (dir), "crash_notes" (a file) and

When booting 2.6.37 (from kernel.org) under Xen 4.1, there are apparently issues with timer interrupts being delivered to the dom0. Repeatedly causing an interrupt (for example, the ACPI power button) will allow the system to boot, as does adding "clocksource=jiffies" to the kernel command line. This is only present under Xen, not when booting the same kernel on real hardware. When boot

Hi list, I have a problem with this stuff, i read many documents about it but i would like to know if anyone have got to resolve the problem. The point is that my vm has the clock unsynchronize, i tried many things and it seems that its work fine but im not sure. Now im using ntpd to synchronize the time but im not trust on it because it didnt work before. First, i tried the jiffies on

Dear All, how can I create a Firefox log? My actual problem is this: I have 17 stations connecting to a Drupal database, that I don't have admin access to. Some of these stations are OpenSuse , some are Centos6.3 and two are Centos5.8. One of this Centos5.8 install frequently has this EM when connecting to this database using Firefox: "There was a problem with an

Now that we can gather diagnostic info, I think I know why our P2Vs kept failing last week. Another one just died right in front of my eyes. I think either the Ethernet or NFS server at this site occasionally "blips" offline when it gets busy and that messes up P2V migrations. The RHEV export domain is an NFS share offered by an old Storagetek NAS, connected over a 10/100 Ethernet.

After reading the instructions at https://wiki.samba.org/index.php/Time_Synchronisation, I still have questions about how samba interacts with nptd. The issue is that LXD doesn't want containers setting the time and so won't start ntpd at container startup even though it's enabled in systemd. The host does sync it's time with a national time server, so we can assume that the

Dear list, Being a libvirt noob, I have some trouble understanding. It is about getting two different guest in the same network. *********** I've defined a network with libvirt. This is the source xml: <network> <name>private2</name> <uuid>9684f2c6-6fd0-491b-9cb5-80ee268b01ce</uuid> <bridge name='br2' stp='on' delay='0'/>

Hi, I have upgraded my Dell C151 to the latest 5.6. I have always used ntp to sync this machine and then the rest of the machines in the network would sync from it. Since the update I cannot keep the right time on the machine. This is with / without ntp. I have attempted various scenario's with no luck. I am now trying the old kernel now as I type this out. If anyone else has any

Dear fellow Xen''ers! I''m having a problem with my new Xen-enabled colocation server.. I hope ( at least ;) ) one of you guys know how to fix this problem.. For a certain amount of time ( 1-2 days ) the domU runs fine.. until the console starts spitting out messages like these: [80182.004456] clocksource/0: Time went backwards: delta=-6917292717540055641 shadow=80182004054805

Hi libvirt: -------- My "short" question is - is there a recipe for installing F19 100% automatically with static IPs? I'm using a combination of url based install with a kickstart script pasted to a gist in order to bootstrap the entire thing. It **used** to work (fedora16), but recently stopped. ------- Note : Right now Im not using the os-variant switch because fedora17+

We are pleased to announce the immediate availability of CentOS-5.8 for the i386 and x86_64 Architectures. CentOS-5.8 is based on the upstream EL 5.8 release and includes packages from all variants including Server, Client, Virtualization, and Clustering. All upstream repositories have been combined into one to make it easier for end users to work with. This is just an announcement email, not

Hi there, I am getting very low throughput (around 0.29Mbps) while running netperf benchmark for guest to guest communication on a single physical host. To analyse where the time is spent in hypervisor I wanna use profiling. Please help me choosing good profiler according to my requirments. Should it be better in my case, Xentrace, gprof, xenoprof  or Oprofile. Is it possible to use some vtune

Hi there, I am getting very low throughput (around 0.29Mbps) while running netperf benchmark for guest to guest communication on a single physical host. To analyse where the time is spent in hypervisor I wanna use profiling. Please help me choosing good profiler according to my requirments. Should it be better in my case, Xentrace, gprof, xenoprof  or Oprofile. Is it possible to use some vtune

These are the current steps we followed to set up and run Windows P2V migrations. Note that development is proceeding rapidly and the versions of all pieces below will likely be obsolete soon. ************************************************************* Windows RHEV P2V Cookbook 2011-1122 1. Install 32 bit Fedora 14 as a virtual machine or physical host. You will use this system to build

Hi all: My OS is now Fedora16 , and the spice server is installed on it by rpms. Then I run 'qemu-kvm -hda /root/vaddsoft.img -m 512 -vga qxl -spice port=5930,disable-ticketing' , I want to find out where is the libvirt.xml for the command . Well , I mean that the libvirt.xml is genrated automatically, not by myself manually. Wish your help! Thanks a lot! -- Yours. suyi

Dear all, I have installed fresh CentOS 5.8 with Xen3.4.4. # uname -a #1 SMP Tue May 29 15:38:25 EDT 2012 x86_64 x86_64 x86_64 GNU/Linux # rpm -qa | grep xen kernel-xen-2.6.18-308.8.1.el5 xen-libs-3.4.4-1.el5 xen-3.4.4-1.el5 xen-libs-3.0.3-135.el5_8.2 After installation, I want to update virt-install and virt-manager to virtinst-0.500.6 and virt-manager-0.8.3. However, when I run virt-install,

On a selection of boxes, ntpd running in Xen Dom0 reproducibly exhibits extermely high noise/jitter. Switching back to -default, non-xen kernel ntpd runs with very low jitter/noise. Question -- how can I ''tame'' ntpd noise & jitter when running in Dom0? Is the problem a config issue, or a bug? Already reported this downstream; everybody''s "stumped".

On a selection of boxes, ntpd running in Xen Dom0 reproducibly exhibits extermely high noise/jitter. Switching back to -default, non-xen kernel ntpd runs with very low jitter/noise. Question -- how can I ''tame'' ntpd noise & jitter when running in Dom0? Is the problem a config issue, or a bug? Already reported this downstream; everybody''s "stumped".