[Xen-devel] RE: [Xen-users] error creating domain in xen 3.0.5

["Petersson, Mats" <Mats.Petersson@xxxxxxx>]

> -----Original Message-----
> From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx 
> [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of 
> Itamar Reis Peixoto
> Sent: 30 April 2007 14:36
> To: xen-users@xxxxxxxxxxxxxxxxxxx
> Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
> Subject: [Xen-users] error creating domain in xen 3.0.5
> 
> anyone can help-me ?
>  
> I am using fedora devel (6.92)


What version of Xen is that with? 

Daniel Berrange submitted a patch that is in 3.0.5-RC4 to fix a problem
with auto-balloning of Dom0. That fixes a problem that is very similar
to yours (if not the same). 

The workaround is to assign a fixed amount of memory to Dom0 with
"dom0_mem=xxx" on the xen.gz boot line in your boot config file. 

<snip big log>
> [2007-04-30 09:27:00 xend.XendDomainInfo 5143] DEBUG 
> (XendDomainInfo:1330) XendDomainInfo.initDomain: 8 256
> [2007-04-30 09:27:00 xend 5143] DEBUG (balloon:133) Balloon: 
> 0 KiB free; 0 to scrub; need 262144; retries: 20.
> [2007-04-30 09:27:21 xend.XendDomainInfo 5143] ERROR 
> (XendDomainInfo:397) VM start failed
> Traceback (most recent call last):
>   File 
> "/usr/lib/python2.5/site-packages/xen/xend/XendDomainInfo.py",
>  line 385, in start
>     self._initDomain()
>   File 
> "/usr/lib/python2.5/site-packages/xen/xend/XendDomainInfo.py",
>  line 1375, in _initDomain
>     balloon.free(memory + shadow)
>   File 
> "/usr/lib/python2.5/site-packages/xen/xend/balloon.py", line 
> 170, in free
>     free_mem + scrub_mem + dom0_alloc - dom0_min_mem))
> VmError: I need 262144 KiB, but dom0_min_mem is 200704 and 
<snip another copy of same error message> 

--
Mats



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