similar to: What happend to /sys/xen and independent_wallclock (Xen 4.0/Linux 2.6.32)

Hi, Following is a simple patch that is needed in nouveau to get accelerated X on a Xen dom0 pv_ops kernel. The kernel is jeremy's 2.6.31.6 as of 20100222. The whole gpu tree of nouveau (which is almost the mainline merge), was substituted into the kernel-tree. All components of X (mesa, Xorg-server-7.5, xf86-nouveau, libdrm) used of the same day. Patch: diff -Naur

Hi, Following is a simple patch that is needed in nouveau to get accelerated X on a Xen dom0 pv_ops kernel. The kernel is jeremy's 2.6.31.6 as of 20100222. The whole gpu tree of nouveau (which is almost the mainline merge), was substituted into the kernel-tree. All components of X (mesa, Xorg-server-7.5, xf86-nouveau, libdrm) used of the same day. Patch: diff -Naur

Package: xen Severity: important Version: 4.0.1-1 The Xen documentation and Xen Debian wiki describes using independent_wallclock to sync domU clocks against the dom0 clock http://docs.vmd.citrix.com/XenServer/4.0.1/guest/ch04s06.html http://wiki.debian.org/Xen#Possible_problems_and_bugs-1 This sysctl appears to have gone away with squeeze, but the documentation is not updated Time drift is

Hi Everyone, git noob. simple question, how do i get a previous release from jeremy''s git repository? Right now, I can get the latest (2.6.32.9) by doing the following: git clone git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git linux-2.6-xen $ cd linux-2.6-xen $ git pull I tried doing a "git tag -l" when in linux-2.6-xen directory, but that did not print the tag

Hi Everyone, git noob. simple question, how do i get a previous release from jeremy''s git repository? Right now, I can get the latest (2.6.32.9) by doing the following: git clone git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git linux-2.6-xen $ cd linux-2.6-xen $ git pull I tried doing a "git tag -l" when in linux-2.6-xen directory, but that did not print the tag

Hello. On kernel from linux-image-2.6.18-6-xen-686, there is /proc/sys/xen/independent_wallclock sysctl that may be used to decoupte domU clock from domO clock. This is needed to run ntp in domU. On kernel from linux-image-2.6.26-1-xen-686, there is no such ioctl. Is that a bug or a feature? Is it possible to decoupte domU clock from domO clock when domU is running on

If independent_wallclock is set to 0, then that means running ''date'' in the domU should provide exactly the same answer as running ''date'' on dom0, right? But this isn''t happening for us. The domU''s are all running minutes behind the dom0 - in one case 16 minutes behind! dom0$ date Tue Jun 27 14:23:01 BST 2006 domU-a$ date Tue Jun 27

Hi all, can anybody please explain me what changes if i set independent_wallclock to 1 in dom0. I know that setting it to 1 in domU means that the domU will have his clock running independently from dom0 but I don''t understand what does it means setting it to 1 in dom0. Regards -- Dario Fiumicello _______________________________________________ Xen-users mailing list

Hello, I know, often asked, often discussed .. No recommendation from Citrix. What is the better solution? 1) use ntp in the XEN host and synchronize the guests with the clock running on the control domain (independent_wallclock=0, what the default is) 2) or use ntp in host and guest (and independent_wallclock=1) I ask, because the XEN host (bare metal) has a more stable clock and if the ntp

Hi All, I have just started looking at the code for Xen so please bear with me. A domU Linux kernel running with independent_wallclock=1 seems to sync its time with dom0 after every "xm unpause" (obviously preceded by an "xm pause"). I don''t see where the xtime variable is being updated after an "xm unpause", i.e., domain_unpause_by_systemcontroller().

HI, guys Recently,I met a problem. Xen''s version: 3.4.3 guest os:redhat 4.8 32bit And xen.independent_wallclock = 1 has been set. The time of guest os change to be fast suddenly, about 2000 second. because the change is too wild, ntp didn''t sync to the ntp server''s time. my application is dependent on the systme time. And this occurs a lot of times. I don''t

Hello ! Just a quick question about time synchronization between xen dom0 and domUs... We''re running Xen 3.1 64-bit, with 32 and 64 bits linux guests. It''s up since 89 days and the domU''s time is around 5 minutes behind the dom0, which is updated via ntpdate... Any idea why it doesn''t sync the guests even that /proc/sys/xen/independent_wallclock is 0 ?

Hi, I am facing problem in sync time within DomU with Dom0. After gone through mailing lists, I have set /proc/sys/xen/independent_wallclock to 0. But still DomU are not syncing their time :-S Machine using kernel-xen-2.6.19-1.2911.fc6 xen-3.0.3-3.fc6 xen-libs-3.0.3-3.fc6 Please advice to solve this weird problem, Thanks _______________________________________________ Xen-users mailing list

Hey, I have rather new installation of xen, dom0 is running ntpd and is perfectly in time. All domU''s are ~23s in future. Running ntpd on the domU''s seem to have no effect, /proc/sys/xen/independent_wallclock appears to have no effect. I''m running xen-unstable and 2.6.16-rc4 in AMD64 box. Any tip would be appricated. Thanks, -- ++ytti

Hi list, one and hopefully last strange thing I figured out ist the systime of my guests. Dom0 uses ntp for time syncronisation. I set the time on my guests manually but after reboot any machine (Windows server, XP, Freebsd, even PV Machines like ubuntu) all run local time - 2 hours. /proc/sys/xen/independent_wallclock is set to 0 so actually the time should be set by dom0...(?) Any

Hi everybody! I know this is an ultraknown issue, but in my case i think it is going beyond. As you may guess my domUs clocks go faster or slower They come with the same OS (Centos 5 2.6.18-92.1.18.el5 ) but each of them have a different clock speed. Why? Dom0 does not syncronize domUs : So i watched out looking for any solution.... First attempt: /proc/sys/xen/independent_wallclock = 0

I don''t want my dom0 to update the clock in my HVM domU. I''ve already disabled network-based time synchronization inside the HVM. I''ve tried setting /proc/sys/xen/independent_wallclock=1 and then restarting xend, but the guest still gets the correct time. Any ideas on how to accomplish this? Steve Brueckner, ATC-NY _______________________________________________

Hi! Can anybody explain how Xen deals with time? On traditional, non-virtualized systems I run an ntpd on every system to keep the time accurate. But what to do on xenified systems? Do all the domU''s get the time from dom0 meaning it is sufficient to run an ntpd there or do I have it to setup in every domU? Thanks for your help! Kind regards, Stephan

Hi guys, Having a weird issue with a Dom0. When we were running 2.6.18.8 kernel the server would lock up every 2 weeks for no reason. Its been a difficult one to resolve as there are no errors. We have now upgraded to 2.6.32.13 and the lock ups are more often. For example today it crashed in the morning, then it was rebooted and it crashed again about 5 hours later, no logs. The

While in the upstream kernel I''m unable to find any use of XENPF_settime (and the DOM0_SETTIME alias of it) at all, in the 2.6.18 tree (and the forward ports of it) the function gets used only when ntp_synced() returns true (and - that''s minor - when independent_wallclock is not set). It would however seem to me that this doesn''t cover the case where the host clock gets