Re: Upgrade from xen-4.1-testing to xen-unstable report

[Ian Campbell <Ian.Campbell@citrix.com>]

On Wed, 2012-04-11 at 22:23 +0100, Teck Choon Giam wrote:
> Hi,
> 
> This is just my experience about issues I encountered when upgrade
> from xen-4.1-testing changeset 23277:80130491806f to xen-unstable
> changeset 25191:a95fc7decc83.
> 
> 1. Immediately after upgrade, xl list show such error:
> 
> # xl list
> libxl: error: libxl.c:506:libxl_list_domain: geting domain info list:
> Permission denied
> libxl_domain_infolist failed.
> 
> After a reboot, it is fine.  Any idea why such behaviour?  Imagine if
> there are running domUs... this might cause issues to shutdown?  I
> will downgrade and repeat such test to confirm.  Might be worth a note
> in upgrading note about this if this is intended?

The tools and the hypervisor are a matched pair so you would need to
reboot the system in order to use the new tools. This has always been
the case with Xen upgrades.

> 2. localtime setting not working.  Set to localtime=1 doesn't seems to
> work whereby setting rtc_timeoffset works.  Any idea?

I've CC'd Lin Ming who implemented both of those.

> 3. xl trigger hvmdomain power still never remove those related
> iptables forward rules.  This is the same problem when I test in
> xen-4.1-testing.  Refer to
> http://lists.xen.org/archives/html/xen-devel/2012-02/msg00771.html
> about past report.  When test in xen-4.1-testing, one funny behaviour
> is if I start hvmdomain using xm then use xl trigger hvmdomain power
> does remove those iptables related rule chain.

I think this is an issue with the hotplug scripts not being run at the
right time. There are some improvements to this in the pipeline which I
hope will help here.

> I shall do more testing when time permit and sorry if this report is
> useless to anyone.

On the contrary it is always useful to hear about these things, thank
you.

Ian.