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Re: [Xen-users] Can't create HVM guest using 4.0.1

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] Can't create HVM guest using 4.0.1
From: Ian Murray <murrayie@xxxxxxxxxxx>
Date: Sun, 3 Oct 2010 03:08:04 -0700 (PDT)
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Thanks for the response. Sorry, it was late last night and I should have 
included more detail.

>... and the error message is ...?
> /var/log/xen/xend.log is usually a good place to start looking.

Error: (12, 'Cannot allocate memory')
[2010-10-03 02:37:11 3749] ERROR (XendDomainInfo:483) VM start failed
Traceback (most recent call last):
  File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomainInfo.py", line 
468, in start
    XendTask.log_progress(0, 30, self._constructDomain)
  File "/usr/lib64/python2.4/site-packages/xen/xend/XendTask.py", line 209, in 
    retval = func(*args, **kwds)
  File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomainInfo.py", line 
2562, in _constructDomain
    raise VmError(failmsg)
VmError: Creating domain failed: name=win
[2010-10-03 02:37:11 3749] ERROR (XendDomainInfo:106) Domain construction failed

> It shouldn't be the cause.
> However some user have problem using Xen 4.0.1 with the stock RHEL/Centos 
> kernel-xen, while some others reported it works just fine. I'd actually 
> recommend you stick with Xen 3.4.3 for now. Personally, I have RHEL5 a devel 

> with Xen 4.0, but with custom kernel compiled (using patches 
> from http://code.google.com/p/gentoo-xen-kernel/)

Oddly enough, it started working after a reboot. I had rebooted several times 
already and the only difference I can see was that RAID device that the vm's LV 
was sat on was rebuilding last night. Anyway, I will keep an eye on it and if I 
have any more problems, I will try a new kernel or downgrade to Xen 3.4.3.

Thanks again,


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