Re: [Xen-users] xen dom0 32 bits memory is limited to 16GB?

["Marco Strullato" <marco.strullato@xxxxxxxxx>]

I've already tried the first solution but it has a big issue: with a
64 bit configuration (dom0 @64bits and kernel @64 bits, xen 3.2 built
from the src.rpm from the xen web site) I can not save nor migrate
domUs running at 32 bits.
I get this error:

[2008-04-28 14:00:16 2283] ERROR (XendCheckpoint:141) Save failed on
domain TEST (2).
Traceback (most recent call last):
  File "/usr/lib64/python2.5/site-packages/xen/xend/XendCheckpoint.py",
line 109, in save
    forkHelper(cmd, fd, saveInputHandler, False)
  File "/usr/lib64/python2.5/site-packages/xen/xend/XendCheckpoint.py",
line 351, in forkHelper
    raise XendError("%s failed" % string.join(cmd))
XendError: /usr/lib64/xen/bin/xc_save 4 2 0 0 0 failed

This is probably due to the different architecture (32 and 64 bits)
from the dom0 to domUs: I suppose, although the documentation says the
opposite, that xen dom0 @64 bits can not handle correctly many
operations. I mean, with 54 bits dom0 I can start/stop a 32 bit domU
but I can not use a very big number of features.

See the faq: 
http://wiki.xensource.com/xenwiki/XenFaq#head-5f7176b3909cb0382cece43a6a8fc25a3a114e93

Marco

2008/4/29 Rafał Kupka <rkupka+Listy.Xen@xxxxxxxxxxxxx>:
> On Tue, Apr 29, 2008 at 03:49:39PM +0200, Marco Strullato wrote:
>  Hi,
>
> > > >  You should use:
>  > >  >  1) 64bits Xen + 64bits dom0 kernel, userland 64- or 32-bits;
>  > >  >  2) 64bits Xen + 32bits dom0 kernel, userland 32bits
>
>  > >  So you suggest me to install a 64 bit xen version into a 32 bit dom0?
>  > >  I think it won't run but I'll try.
>
>  > Tried. Dont' work (obviously)
>
>  Did you as well test first solution?
>
>  What Xen & dom0 kernel version have you tried?
>
>
>
>  Kupson
>  --
>  Great software without the knowledge to run it is pretty useless.
>  (Linux Gazette #1)
>
>  _______________________________________________
>  Xen-users mailing list
>  Xen-users@xxxxxxxxxxxxxxxxxxx
>  http://lists.xensource.com/xen-users
>

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users