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

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

> -----Original Message-----
> From: Itamar Reis Peixoto [mailto:itamar@xxxxxxxxxxxxxxxx] 
> Sent: 30 April 2007 15:21
> To: Petersson, Mats; xen-users@xxxxxxxxxxxxxxxxxxx
> Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
> Subject: Re: [Xen-users] error creating domain in xen 3.0.5
> 
> I am using 3.0.5 RC4
>  
> total_memory           : 530810
> free_memory            : 0

So, it looks like you've got 256MB given to Dom0 and abouot 512MB of RAM
total in the machine. 

I think you may have problems fitting a 256MB Dom0, Xen Hypevisor and a
256MB guest in 512MB. Perhaps you can reduce the Dom0 memory by some
20-30MB and get it to fit?

--
Mats 

> --------------------
>  
> Itamar Reis Peixoto
>  
> e-mail: itamar@xxxxxxxxxxxxxxxx <mailto:itamar@xxxxxxxxxxxxxxxx> 
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> skype: itamarjp 
> icq: 81053601
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> +55 11 4063 5033
> ----- Original Message ----- 
> From: "Petersson, Mats" <Mats.Petersson@xxxxxxx 
> <mailto:Mats.Petersson@xxxxxxx> >
> To: "Itamar Reis Peixoto" <itamar@xxxxxxxxxxxxxxxx 
> <mailto:itamar@xxxxxxxxxxxxxxxx> >; 
> <xen-users@xxxxxxxxxxxxxxxxxxx 
> <mailto:xen-users@xxxxxxxxxxxxxxxxxxx> >
> Cc: <xen-devel@xxxxxxxxxxxxxxxxxxx 
> <mailto:xen-devel@xxxxxxxxxxxxxxxxxxx> >
> Sent: Monday, April 30, 2007 11:54 AM
> Subject: RE: [Xen-users] error creating domain in xen 3.0.5
> 
> 
> 
> > -----Original Message-----
> > From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx 
> <mailto: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 
> <mailto:xen-users@xxxxxxxxxxxxxxxxxxx> 
> > Cc: xen-devel@xxxxxxxxxxxxxxxxxxx 
> <mailto: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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