Xen users - Jan 2006 - reboot of complete system after start domU

Hello,

I managed to install
- XEN from xen-unstable.hg
- kernel 2.6.15 from linux-2.6-xen.hg
- LVM2 and initramfs
on my AMD64 running Debian sid as pure64.

I can boot normally XEN 3.0 with a dom0 2.6.15 kernel, but as soon as I 
start the corresponding 2.6.15 domU kernel (#xm create -c test.xen) the 
computer performs a hard reset. This is reproducable.
The configuration for test.xen is a copy of the xenexample1 file with 
very little changes (LVM for disc, ip, ...).

My questions:
1. Anyone observed this behaviour before?
2. Any tips on getting more information or to nail down the problem?
3. Which XEN 3.0 is best to be used for serious projects?
  - xen-unstable.hg
  - xen-3.0-testing.hg
  - xen 3.0 download


greetings Boris

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> I managed to install
> - XEN from xen-unstable.hg
> - kernel 2.6.15 from linux-2.6-xen.hg
> - LVM2 and initramfs
> on my AMD64 running Debian sid as pure64.
> 
> I can boot normally XEN 3.0 with a dom0 2.6.15 kernel, but as 
> soon as I start the corresponding 2.6.15 domU kernel (#xm 
> create -c test.xen) the computer performs a hard reset. 
There are known issues with 2.6.15 as an x86_64 dom0 -- that''s why its
not checked into the tree. This sounds more serious than the other problem that
has been observed, though.
> This is reproducable.
> The configuration for test.xen is a copy of the xenexample1 
> file with very little changes (LVM for disc, ip, ...).
> 
> My questions:
> 1. Anyone observed this behaviour before?
> 2. Any tips on getting more information or to nail down the problem?
Put ''noreboot'' on the xen command line, and don''t
start X in dom0 so that you get an oops message (or connect a serial line).

using a debug=y build of xen would be best.

> 3. Which XEN 3.0 is best to be used for serious projects?
>   - xen-unstable.hg
>   - xen-3.0-testing.hg
>   - xen 3.0 download
3.0-testing

Ian

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On 1/12/06, Ian Pratt <m+Ian.Pratt@cl.cam.ac.uk>
wrote:
>
> > 3. Which XEN 3.0 is best to be used for serious projects?
> >   - xen-unstable.hg
> >   - xen-3.0-testing.hg
> >   - xen 3.0 download
>
> 3.0-testing
>
Can i know when is the testing due to become the stable ?

--

regards,

Anand


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Hello Ian,
> There are known issues with 2.6.15 as an x86_64 dom0 -- that''s why
its not checked into the tree. This sounds more serious than the other problem
that has been observed, though.
>   
I found out what the problem was:
It seem to be my incorrect installation of XEN. After I run the 
"install.sh" script from the XEN distribution I was able to start the 
domU without restarting.
My be it it''s an idea to include any pre-checks in the startup if there
aren''t already some?

greetings Boris

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