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xen-users
Re: [Xen-users] Time went backwards / Stability issues
Hi Ian,
Well, I've posted an Ubuntu report here
https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.22/+bug/146924 ,
with a reference to http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=195
, which seems pretty much the same bug..
Kind regards,
Bart Verwilst
----- Original Message -----
From: "Ian Marlier" <ian.marlier@xxxxxxxxxxxxxxxxxxx>
To: xen-users@xxxxxxxxxxxxxxxxxxx
Sent: Monday, October 29, 2007 7:47:01 PM (GMT+0100) Europe/Berlin
Subject: Re: [Xen-users] Time went backwards / Stability issues
On 10/28/07 1:05 AM, "jim burns" <jim_burn@xxxxxxxxxxxxx> wrote:
> On Sat October 27 2007 8:17:56 am Bart Verwilst wrote:
>> I've had the same troubles with the Ubuntu 2.6.22-14-xen kernel.
>
> Not just 2.6.22. Happens on fedora's 2.6.20 also. Everytime I close or open my
> laptop lid, the error gets triggered, so it must be acpi related. Haven't
> seen it in my test PV domUs, just dom0, but the only thing I keep running for
> any length of time is HVM.
Thanks to both Jim and Bart for their reports on this.
I found an older thread about this -- Bart's from earlier this month -- and
tried the jiffies clocksource suggestion there.
After changing the clocksource in _only_ dom0, the burn-in tests (that were
causing an error within minutes previously) have run for 72 hours straight
without causing any errors. I've had full CPU utilization for that entire
period without a single clocksource issue.
My questions:
1) Is there any potential harm in changing the clocksource? That is, is it
somehow important that the xen clocksource be used?
2) Bart and Jim, you guys have both seen this before; do either of you know
if there's a bug filed for this? I searched the xensource bugzilla, but
wasn't able to find one -- but I find bugzilla very difficult to search.
- Ian
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