Re: [Xen-devel] Xen-hypervisor 3.2 on HP Proliant DL380 G6

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Fri, Jul 16, 2010 at 11:23:38PM -0400, Emanuel dos Reis Rodrigues wrote:
> I has beens instaled Debian Lenny  5 and follow packages:
> 
> ii  libxenstore3.0                      3.2.1-2
> Xenstore communications library for Xen
> ii  linux-image-2.6.26-2-xen-amd64      2.6.26-24
> Linux 2.6.26 image on AMD64, oldstyle Xen support
> ii  linux-modules-2.6.26-2-xen-amd64    2.6.26-24
> Linux 2.6.26 modules on AMD64
> ii  xen-hypervisor-3.2-1-amd64          3.2.1-2                    The
> Xen Hypervisor on AMD64
> ii  xen-linux-system-2.6.26-2-xen-amd64 2.6.26-24                  XEN
> system with Linux 2.6.26 image on AMD64
> ii  xen-shell                           1.8-3
> Console based Xen administration utility
> ii  xen-tools                           3.9-4
> Tools to manage Debian XEN virtual servers
> ii  xen-utils-3.2-1                     3.2.1-2                    XEN
> administrative tools
> ii  xen-utils-common                    3.2.0-2                    XEN
> administrative tools - common files
> ii  xenstore-utils                      3.2.1-2
> Xenstore utilities for Xen
> ii  xenwatch                            0.5.2-1
> Virtualization utilities, mostly for Xen
> 

Xen packages in Lenny are getting very old, you should run something more 
recent..
Especially for Xen HVM guests.

> 
> obviously my hardware has virtualization support for hvm:
> 
> xm dmesg | grep -i hvm
> (XEN) HVM: VMX enabled
> 
> and
> 
> xm info | grep xen_caps
> xen_caps               : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32
> hvm-3.0-x86_32p hvm-3.0-x86_64
> 
> and
> 
> grep -i vmx /proc/cpuinfo
> this  nothing return, but this no have problema, because I have other
> servers without this output and hvm works fine.
> 

Yeah, because VMX is used by Xen hypervisor (xen.gz), so dom0 Linux doesn't see 
it.


> 
> Every HVM machine freezing when boot. I tested in the folow scenaries:
> 
> - Boot from iso of Windows install Media 2008/ XP etc ...
> 
>   Freeze when boot on image
> 
> - Boot from iso of ubunt
> 
>   Freeze after I enter the option in grub, in loading kernel ...
> 
> - Boot from Windows 2008 ready image that run perfectly in another machine
> 
>   Freeze during .. loading windows files ....
> 

Update to Xen 3.4.x or 4.0.x.

> 
> 
> Name                                        ID   Mem VCPUs      State   
> Time(s)
> Domain-0                                     0 27218    16     r-----    376.5
> win2008-ts                                  13  2048     1     r-----    123.4
> 

Also limit your dom0 memory to a fixed/dedicated amount of memory.
See: http://wiki.xensource.com/xenwiki/XenBestPractices

-- Pasi


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