Displaying 20 results from an estimated 2000 matches similar to: "Where is xtime updated in a domU with an independent wallclock?"
2006 Feb 26
17
domU clock over 23s off
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
2007 Mar 06
6
Desynchronize clock
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
_______________________________________________
2008 Jun 13
16
Isolation and time
(Moving from offlist discussion.)
I''m interested in opinions... Assume there are four
single vcpu domains A, B, C, D, running on a 2-CPU
physical machine. We wish to test for time skew on
domain A. Assuming B, C, and D are all running
some workload that attempts to fully saturate the
(single) cpu.
1) Should the affect on domain A be essentially the
same regardless of what load
2013 Aug 21
1
keeping correct time in guest
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
2009 Jan 11
2
drifting clock in domUs
Hello,
On a xenserver with several (39) domUs, we experience problems with the
system clock of the domUs. The clock seems to drift away several seconds
up to two minutes from the dom0 clock.
We do have set independent_wallclock=0. According to the docs (i.e.
http://wiki.xensource.com/xenwiki/InstallationNotes) that way domUs
should use the dom0 clock, but apparently that''s not the case.
2011 Jul 26
1
Error during geo-replication : Unable to get <uuid>.xtime attr
Hi,
I got a problem during geo-replication:
The master Gluster server log has the following error every second:
[2011-07-26 04:20:50.618532] W [libxlator.c:128:cluster_markerxtime_cbk]
0-flvol-dht: Unable to get <uuid>.xtime attr
While the slave log has the error every a few seconds:
[2011-07-26 04:25:08.77133] E
[stat-prefetch.c:695:sp_remove_caches_from_all_fds_opened]
2007 Apr 19
5
Polycom IP 501 is displaying wrong time
Hi,
This is Chandra. I have Polycom IP 501 phone. Its showing wrong time on the display screen. How can I set the "New York" time? What value I have to give to GMT offset value?
Look forward to your response. Thank you.
Regards,
Chandra.
---------------------------------
Ahhh...imagining that irresistible "new car" smell?
Check outnew cars at Yahoo! Autos.
2013 Jun 11
8
[PATCH v2] xen: fix initialization of wallclock time for PVHVM on migration
Call update_domain_wallclock_time on hvm_latch_shinfo_size even if
the bitness of the guest has already been set, this fixes the problem
with the wallclock not being set for PVHVM guests on resume from
migration.
Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
Cc: Jan Beulich <JBeulich@suse.com>
Cc: Keir Fraser <keir@xen.org>
Cc: George Dunlap
2006 Oct 11
9
time synchronization problem (using NTP)
Hi,
using SLES10 I''m unable to synchronize the time of DomU with that of Dom0. There
is a persistent offset of about 3 seconds!
Here''s a small history (not actual output):
remote refid st t when poll reach delay offset jitter
rkdvmso1.dvm.kl 192.168.0.11 5 u - 64 1 0.136 -2977.1 0.099
*rkdvmso1.dvm.kl 192.168.0.11 5 u 2 64
2013 Jun 11
21
[PATCH] xen: fix initialization of wallclock time for PVHVM on migration
The initial values of the wallclock time in the shared info page are
set for PVHVM guests when the hypercall page is initialized, since the
hypercall page is not reinitialized on resume, the hypervisor
wallclock time is not properly set on resume.
Fix it by forcing an update of the wallclock values when the shared
info page is mapped.
Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
2007 Apr 16
2
basic include files for speex
Hi Jean,
I'm trying to compile the encode.c and or the test programs that are on the site and in libspeex respectively. however, i keep getting some undefined references to the basic speex functions(see compiler log). a query on google showed that this question was posed but no answer given. I traced them down to speex.c. however when i build my project i still get these undefined referneces.
2006 Mar 28
18
wallclock time for paravirtualized guests
The paravirtualized guests are offered wallclock time referenced to UTC only, while fully virtualized guests are given the option via the config file (localtime parameter) of starting with UTC time or local time.
What would it take to optionally provide localtime to the paravirtualized guests as well?
For a guest that launches assuming localtime as its time basis, then later deriving UTC from it
2007 Apr 25
2
My Polycom IP 501 is formatted its file systemitself
> -----Original Message-----
> From: asterisk-users-bounces@lists.digium.com [mailto:asterisk-users-
> bounces@lists.digium.com] On Behalf Of Noah Miller
> Sent: Wednesday, April 25, 2007 9:52 AM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: Re: [asterisk-users] My Polycom IP 501 is formatted its file
> systemitself
>
> Hi Chandra -
>
>
2008 Nov 27
1
Re: RE: Re: Re: when timer go back in dom0 save and restore ormigrate, PV domain hung
F.Y.I
>>> "Tian, Kevin" <kevin.tian@intel.com> 08.11.27. 11:50 >>>Sorry for a
typo. I did mean domU instead of dom0. :-) The point here is that
time_resume will sync to new system time and wall clock at restore, and
thus pv guest should be able to continue... Xen system time is not
wallclock time which just counts up from power up. As Keir points out,
only its
2007 Apr 26
1
libcrypto.so: undefined reference to `utc_time'
I am trying to cross compile openssh for arm5b-jungo-gnu-gcc,,
and also using openssl and zlib from same compiler arm5b-jungo-gnu-gcc
but i am getting following error,,,
/usr/local/openrg/armv5b-jungo-linux-gnu/bin/armv5b-jungo-linux-gnu-ld: warning: cannot find entry symbol _start; defaulting to 0000b9c8
/usr/local/openrg/armv5b-jungo-linux-gnu/bin/../armv5b-jungo-linux-gnu/lib/libcrypto.so:
2011 May 05
1
Why is PQMSTATUS empty?
Hey all!
I'm trying to do a bit of logic here so that a user only has to dial one
code to pause/unpause in a queue (e.g. *0 will (un)pause depending on the
users's state). My logic looks fine to me but every time ${PQMSTATUS} shows
up empty.
Here's the extensions.conf part....
exten => *0,1,NoOp(${PQMSTATUS})
exten => *0,n,Macro(user-callerid,SKIPTTL,)
exten =>
2007 Jan 17
5
[PATCH] Have xen dom0 still handle time of 1970
It''s come to our attention, that the time gets screwed up when set
between EPOCH and EPOCH + uptime. This may not seem important (because
we don''t live in the 70s anymore) but it makes LTP fail. LTP has a date
test that checks what happens when set to EPOCH + 100 secs + 100 nsecs,
and makes sure that it gets a proper result.
The following patches helps xen handle the case
2007 Apr 19
2
error: *** zlib missing
I am very new to linux and openSSH ,, i am trying to compile openssh for jungo openrg IXP45. but while configuring i am getting following error,,
hecking for libgen.h... yes
checking for getspnam... yes
checking for library containing basename... none required
checking for deflate in -lz... no
configure: error: *** zlib missing - please install first or check config.log ***
if anybody will me
2006 Apr 07
5
Time Synchronization
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
2008 Dec 03
1
Xen-Version in CentOS 5.3?
Hi folks,
I tried to find out what xen version upstream intends to use in 5.3, but
did not find anything.
So now I hope that there is some secret knowledge among the CentOS people
you could share? :-)
Any hint or link would be helpful. Thanks in advance,
Dirk