[Xen-users] xen won't start

To:	xen-users@xxxxxxxxxxxxxxxxxxx
Subject:	[Xen-users] xen won't start
From:	Alaa eldin <sirash23@xxxxxxxxx>
Date:	Tue, 2 Mar 2010 05:03:13 -0500
Delivery-date:	Tue, 02 Mar 2010 02:04:40 -0800
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Hello,
when i try to start the xen and write
xm list
the result
Error: Unable to connect to xend: No such file or directory. Is xend running?
and this
/var/log/xen/xend.log
[2010-03-02 05:00:00 3485] INFO (SrvDaemon:227) Xend stopped due to signal 15.
[2010-03-02 05:00:00 3743] INFO (SrvDaemon:332) Xend Daemon started
[2010-03-02 05:00:00 3743] INFO (SrvDaemon:336) Xend changeset: unavailable.
[2010-03-02 05:00:00 3743] 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')

OS : centos 5.4
xen version : 3.4.2

any help

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[Xen-users] xen won't start