Re: [Xen-users] vanilla kernel and xen (in general), vanilla 2.6.24 and xen

[Andy Smith <andy@xxxxxxxxxxxxxx>]

Hi Mark,

On Thu, Feb 07, 2008 at 02:26:28AM +0000, Mark Williamson wrote:
> You don't need a special Xen tree to get pvops guest support.  2.6.24 can run 
> as a domU using pvops, albeit slightly limited (no 64-bit guests, no 
> migration or save / restore, etc).  There is a special kernel tree that 
> contains dom0 pvops support, but you shouldn't need that just yet!  Lets get 
> domU working first, eh? ;-)

I'm having the same problems.  Trying to get fedora 8 working as a
domU on a Debian Etch dom0using stock Debian Xen packages.  So that
means xen 3.0.3 hypervisor and Debian 2.6.18-based Xen kernel.

> You need to pass the argument "console=hvc0" (e.g. in the extra= section of 
> the config file) or no boot output will come out.  Note that this is 
> different from the previous Xen convention of calling the console device xvc0 
> or tty1 or ttyS0, etc.

It still crashes immediately before giving any output:

[2008-02-07 11:55:48 xend.XendDomainInfo 3525] DEBUG (__init__:1072) Storing VM 
details: {'shadow_memory': '0', 'uuid': '4a54f878-822d-b690-0cce-e562ae26234c', 
'on_reboot': 'restart', 'start_time': '1202385348.89', 'on_poweroff': 
'destroy', 'name': 'fedora8', 'vcpus': '1', 'vcpu_avail': '1', 'memory': '120', 
'on_crash': 'restart', 'image': "(linux (ramdisk /var/lib/xen/initrd.5wFAEZ) 
(kernel /var/lib/xen/vmlinuz.p36_aL) (args 'ro root=LABEL=/ console=hvc0'))", 
'maxmem': '120'}
[2008-02-07 11:55:49 xend.XendDomainInfo 3525] DEBUG (__init__:1072) Storing 
domain details: {'console/ring-ref': '294508', 'console/port': '2', 'name': 
'fedora8', 'console/limit': '1048576', 'vm': 
'/vm/4a54f878-822d-b690-0cce-e562ae26234c', 'domid': '42', 
'cpu/0/availability': 'online', 'memory/target': '122880', 'store/ring-ref': 
'294509', 'store/port': '1'}
[2008-02-07 11:55:49 xend.XendDomainInfo 3525] DEBUG (__init__:1072) 
XendDomainInfo.handleShutdownWatch
[2008-02-07 11:55:49 xend.XendDomainInfo 3525] WARNING (__init__:1072) Domain 
has crashed: name=fedora8 id=42.
[2008-02-07 11:55:49 xend.XendDomainInfo 3525] ERROR (__init__:1072) VM fedora8 
restarting too fast (1.342405 seconds since the last restart).  Refusing to 
restart to avoid loops.
[2008-02-07 11:55:49 xend.XendDomainInfo 3525] DEBUG (__init__:1072) 
XendDomainInfo.destroy: domid=42
[2008-02-07 11:55:49 xend.XendDomainInfo 3525] DEBUG (__init__:1072) 
XendDomainInfo.destroyDomain(42)

config file:

name = 'fedora8'
memory = 120
disk = [ 'phy:mapper/mainvg-domu_fedora8_root,xvda1,w',
         'phy:mapper/mainvg-domu_fedora8_swap,xvda2,w' ]
vif = [ 'mac=00:16:3e:1b:b2:f8, bridge=xenbr0, vifname=v-fedora8' ]
bootloader = '/usr/lib/xen-3.0.3-1/bin/pygrub'

Any ideas?

Cheers,
Andy

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