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

["Itamar Reis Peixoto" <itamar@xxxxxxxxxxxxxxxx>]

I have 2 gb of memory on this machine, and in my domU config I have set mem=32

 

[root@vps auto]# pwd
/etc/xen/auto

 

[root@vps auto]# xm list
Name                                      ID   Mem VCPUs      State   Time(s)
Domain-0                                   0   256     1     r-----     98.9
[root@vps auto]# xm mem-set 0 32

 

[root@vps auto]# xm list
Name                                      ID   Mem VCPUs      State   Time(s)
Domain-0                                   0    32     1     r-----    101.4

 

[root@vps auto]# xm create ispbrasil
Using config file "./ispbrasil".
Error: I need 32768 KiB, but dom0_min_mem is 200704 and shrinking to 200704 KiB would leave only -167936 KiB free.
[root@vps auto]#

 

 

--------------------

 

Itamar Reis Peixoto

 

e-mail: itamar@xxxxxxxxxxxxxxxx
msn: itamarjp@xxxxxxxxxxxxx
skype: itamarjp
icq: 81053601
+55 34 3238 3845
+55 11 4063 5033

----- Original Message -----

From: "Petersson, Mats" <Mats.Petersson@xxxxxxx>

To: "Itamar Reis Peixoto" <itamar@xxxxxxxxxxxxxxxx>; <xen-users@xxxxxxxxxxxxxxxxxxx>

Cc: <xen-devel@xxxxxxxxxxxxxxxxxxx>

Sent: Monday, April 30, 2007 12:30 PM

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

> -----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> 
> msn: itamarjp@xxxxxxxxxxxxx <mailto:itamarjp@xxxxxxxxxxxxx> 
> skype: itamarjp 
> icq: 81053601
> +55 34 3238 3845
> 
+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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