From mboxrd@z Thu Jan 1 00:00:00 1970 From: Olivier Hanesse Subject: Re: [Xen-users] Re: Xen 4 TSC problems Date: Mon, 15 Oct 2012 09:39:56 +0200 Message-ID: References: <65395f62-74e5-4910-b701-8df629c2ce3b@default> <20120930151314.GU8912@reaktio.net> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============3773458365543498546==" Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Mauro Cc: Dan Magenheimer , xen-devel@lists.xensource.com, Keir Fraser , Jeremy Fitzhardinge , Keir Fraser , Xen Users , Mark Adams List-Id: xen-devel@lists.xenproject.org --===============3773458365543498546== Content-Type: multipart/alternative; boundary=f46d0446317ce0d64a04cc1424ae --f46d0446317ce0d64a04cc1424ae Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Hello, Strange things on this rainy morning, I got this bug again on another hardware, and Xen hypervisor from Wheezy and kernel from Squeeze. ii linux-image-2.6.32-5-xen-amd64 2.6.32-46 Linux 2.6.32 for 64-bit PCs, Xen dom0 support ii xen-hypervisor-4.1-amd64 4.1.3-2 Xen Hypervisor on AMD64 I've upgraded this server last week. I don't know if it is linked or not, but I didn't get any 'time wrap' on this server for more than 250days. Maybe it is related to the upgrade process. Before the upgrade, my version were : ii linux-image-2.6.32-5-xen-amd64 2.6.32-41squeeze2 Linux 2.6.32 for 64-bit PCs, Xen dom0 support ii xen-hypervisor-4.1-amd64 4.1.2-2 Xen Hypervisor on AMD64 I only upgraded half of my servers, so I will wait a little bit to upgrade the other half and see if this issue occurs again only on updated servers. For the record, always the same errors : xm dmesg =3D> (XEN) Platform timer appears to have unexpectedly wrapped 10 = or more times. /var/log/* =3D> Oct 14 22:46:07 eul2400468 kernel: [734618.562219] Clocksource tsc unstable (delta =3D -2999660313370 ns) I thought it was this issue was hardware related, maybe not. Olivier 2012/9/30 Mauro > On 30 September 2012 21:23, Mauro wrote: > > On 30 September 2012 17:13, Pasi K=E4rkk=E4inen wrote: > >> On Sat, Sep 29, 2012 at 02:19:55PM +0200, Mauro wrote: > >>> It's happened another time, system date 50 minutes ahead. > >>> There is really no solution? > >>> > >> > >> Try with a recent Xen hypervisor version. Xen 4.1.3 or 4.2.0. > >> It helps a lot to know if the issue is still in the latest hypervisor > versions or not. > > There is someone that had the problem and solved using a recent xen > hypervisor? > --f46d0446317ce0d64a04cc1424ae Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Hello,=A0

Strange things on this rainy morning, I got th= is bug again on another hardware, and Xen hypervisor from Wheezy and kernel= from Squeeze.

ii =A0linux-image-2.6.32-5-xen= -amd64 =A0 =A0 =A02.6.32-46 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0Linux 2.6.32= for 64-bit PCs, Xen dom0 support
ii =A0xen-hypervisor-4.1-amd64 =A0 =A0 =A0 =A0 =A0 =A0 =A0 4.1.3-2 =A0= =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0Xen Hypervisor on AMD64
<= br>
I've upgraded this server last week. I don't know if = it is linked or not, but I didn't get any 'time wrap' on this s= erver for more than 250days.
Maybe it is related to the upgrade process.=A0Before the upgrade, my v= ersion were :

ii =A0linux-image-2.6.32-5-xen-= amd64 =A0 2.6.32-41squeeze2 =A0 =A0 =A0 =A0 =A0 =A0Linux 2.6.32 for 64-bit = PCs, Xen dom0 support
ii =A0xen-hypervisor-4.1-amd64 =A0 =A0 =A0 =A0 =A0 =A04.1.2-2 =A0 =A0 = =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0Xen Hypervisor on AMD64
=
I only upgraded half of my servers, so I will wait a little = bit to upgrade the other half and see if this issue occurs again only on up= dated servers.

For the record, always the same errors :=A0
<= br>
xm dmesg =3D>=A0(XEN) Platform timer appears to have unexp= ectedly wrapped 10 or more times.
=A0
/var/log/* = =A0 =3D> Oct 14 22:46:07 eul2400468 kernel: [734618.562219] Clocksource = tsc unstable (delta =3D -2999660313370 ns)

I thought it was this issue was hardware related,= maybe not.

Olivier

2012/9/30 Mauro <mrsanna1@gmail.com>
On 30 September 2012 21:23= , Mauro <mrsanna1@gmail.com>= ; wrote:
> On 30 September 2012 17:13, Pasi K=E4rkk=E4inen <pasik@iki.fi> wrote:
>> On Sat, Sep 29, 2012 at 02:19:55PM +0200, Mauro wrote:
>>> It's happened another time, system date 50 minutes ahead.<= br> >>> There is really no solution?
>>>
>>
>> Try with a recent Xen hypervisor version. Xen 4.1.3 or 4.2.0.
>> It helps a lot to know if the issue is still in the latest hypervi= sor versions or not.

There is someone that had the problem and solved using a recent xen h= ypervisor?

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