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Re: [Xen-devel] shutdown/migration stop working on paravirt domU

On Tue, Jan 17, 2012 at 12:58:14PM +0400, Vasiliy Tolstov wrote:
> Hello. Today i'm try to research, why most of our vm (pvm) not
> shutdown correctly (we use shutdown with timeout, then it arrives we
> destroy vm), and write simple test case to check that domU watches

Which kernel version of DomU?
> works correctly:
> xenstore write /local/domain/DOMID/control/shutdown testflag;
> xenstore read /local/domain/DOMID/control/shutdown
> If userspace watches works correctly - xenstore read returns empty,
> becouse domU kernel respond only to known actions and printk and clean
> path on unknown actions.
> I can't see difference in various kernel versions
> (centos/opensuse/debian and other), we use oxenstored old version
> (that shipped with 4.0.1_21326_06-0.4.1 on sles)
> How can i debug this issue and get more info on this problem?

Play a bit with xenctx to get an idea where the guest is stuck at.

> P.S. Some domains, that has small uptime respond to my check and
> shutdown/migrate correctly.
> -- 
> Vasiliy Tolstov,
> Clodo.ru
> e-mail: v.tolstov@xxxxxxxxx
> jabber: vase@xxxxxxxxx
> _______________________________________________
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> http://lists.xensource.com/xen-devel

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