Re: [Xen-users] Resolve "Time went backwards" problem by using jiffies as clocksource

[Daniel Lam <daniel@xxxxxxxxxxxxxxxx>]

On Mon, Jan 4, 2010 at 4:11 AM, Pasi Kärkkäinen <pasik@xxxxxx> wrote:

On Mon, Jan 04, 2010 at 03:56:46AM +1100, Daniel Lam wrote:
>    On Mon, Jan 4, 2010 at 3:49 AM, Pasi Kärkkäinen <[1]pasik@xxxxxx> wrote:
>
>      On Mon, Jan 04, 2010 at 03:44:34AM +1100, Daniel Lam wrote:
>      >    Hi All - so I guess nobody has the answers to these questions?
>      >    Is there somewhere I can ask, perhaps the developers list?
>      >
>
>      Have you tried using newer Xen hypervisor?
>      Xen 3.4.2 is the latest stable release.
>
>      Also, did you try different dom0/domU kernel versions?
>
>      -- Pasi
>
>    Thanks for prompt reply.
>    I *think* I have the latest stable version - I installed Xen by running
>       apt-get install xen-linux-system-2.6.26-2-xen-686
>    on Debian 5.0 Lenny.
>

So you have the latest version included in *Lenny*, which is already
pretty old.

The Xen hypervisor in lenny is version 3.2, which is pretty old. Like said,
the newest stable upstream Xen version is 3.4.2. Also the Xen
dom0 kernel in lenny is based on some early opensuse kernel snapshot,
and it's known to have problems/bugs.

 

> And no I haven't tried different dom0/domU
>    kernel versions. I have only been playing around with Debian 5.0 Lenny,
>    as dom0 and domU.
>    Are you suggesting that using xen as clocksource should work
>    on latest stable versions?
>    And for the record I'm experimenting on a Dell Optiplex GX520 with 2gb
>    ram.

It should work yeah, and you shouldn't have "time went backwards"
errors.

-- Pasi

Thanks.. got it! Again thanks for prompt reply!

 

Daniel

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