[Xen-users] xen 3.4.3 -- xend service failing to start -- Permission denied

["Joe Linoff" <jlinoff@xxxxxxxxxx>]

Hi Folks:

I am trying to start a domU on a Xen 3.4.3 dom0 based on CentOS 5.5 but
it keeps giving me message that says:

   libvir: Xen Daemon error : internal error failed to connect to xend
   libvir: Xen Daemon error : unable to connect to 'localhost:8000':
Connection refused

I tried 'service xend restart' but that didn't help. After digging a bit
I found the following error message in /var/log/xen/xend.log:

   [2011-01-04 13:28:15 16215] ERROR (SrvDaemon:349) Exception starting
xend ((13, 'Permission denied'))
   Traceback (most recent call last):
     File
"/usr/lib64/python2.4/site-packages/xen/xend/server/SrvDaemon.py", line
341, in run
       servers = SrvServer.create()
     File
"/usr/lib64/python2.4/site-packages/xen/xend/server/SrvServer.py", line
251, in create
       root.putChild('xend', SrvRoot())
     File
"/usr/lib64/python2.4/site-packages/xen/xend/server/SrvRoot.py", line
40, in __init__
       self.get(name)
     File "/usr/lib64/python2.4/site-packages/xen/web/SrvDir.py", line
84, in get
       val = val.getobj()
     File "/usr/lib64/python2.4/site-packages/xen/web/SrvDir.py", line
52, in getobj
       self.obj = klassobj()
     File
"/usr/lib64/python2.4/site-packages/xen/xend/server/SrvNode.py", line
30, in __init__
       self.xn = XendNode.instance()
     File "/usr/lib64/python2.4/site-packages/xen/xend/XendNode.py",
line 948, in instance
       inst = XendNode()
     File "/usr/lib64/python2.4/site-packages/xen/xend/XendNode.py",
line 91, in __init__
       self.other_config["xen_pagesize"] =
self.xeninfo_dict()["xen_pagesize"]
     File "/usr/lib64/python2.4/site-packages/xen/xend/XendNode.py",
line 937, in xeninfo_dict
       return dict(self.xeninfo())
     File "/usr/lib64/python2.4/site-packages/xen/xend/XendNode.py",
line 881, in xeninfo
       info['xen_scheduler'] = self.xenschedinfo()
     File "/usr/lib64/python2.4/site-packages/xen/xend/XendNode.py",
line 871, in xenschedinfo
       sched_id = self.xc.sched_id_get()
   Error: (13, 'Permission denied')

Here is the output from xend-debug.log (note that I tried 'sysctl -p
/etc/sysctl.conf' earlier):

   Xend started at Tue Jan  4 13:28:15 2011.
   sysctl operation failed -- need to rebuild the user-space tool set?
   Exception starting xend: (13, 'Permission denied')

But I don't understand what these messages are trying to tell me. Can
you suggest how this error can be fixed?

Here is my /boot/grub/grub.conf file:

   default=0
   timeout=5
   hiddenmenu
   title CentOS (2.6.18-194.26.1.el5xen)
        root (hd0,0)
        kernel /xen.gz-3.4.3
        module /vmlinuz-2.6.18-194.26.1.el5xen ro
root=/dev/VolGroup00/LogVol00
        module /initrd-2.6.18-194.26.1.el5xen.img


Thanks,

Joe



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