Description of problem: The xend service fails to start after upgrading to
kernel-xen0-2.6.16-1.2111_FC5.  It starts correctly if I reboot to
kernel-xen0-2.6.16-1.2096_FC5.  Xend.log contains the following:

[2006-05-06 18:09:58 xend] INFO (SrvDaemon:285) Xend Daemon started
[2006-05-06 18:09:58 xend] INFO (SrvDaemon:289) Xend changeset: unavailable .
[2006-05-06 18:09:58 xend] ERROR (SrvDaemon:299) Exception starting xend ((111,
'Connection refused'))
Traceback (most recent call last):
  File "/usr/lib/python2.4/site-packages/xen/xend/server/SrvDaemon.py", line
293, in run
    servers = SrvServer.create()
  File "/usr/lib/python2.4/site-packages/xen/xend/server/SrvServer.py", line
106, in create
    root.putChild('xend', SrvRoot())
  File "/usr/lib/python2.4/site-packages/xen/xend/server/SrvRoot.py", line 40,
in __init__
    self.get(name)
  File "/usr/lib/python2.4/site-packages/xen/web/SrvDir.py", line 82, in get
    val = val.getobj()
  File "/usr/lib/python2.4/site-packages/xen/web/SrvDir.py", line 52, in getobj
    self.obj = klassobj()
  File "/usr/lib/python2.4/site-packages/xen/xend/server/SrvDomainDir.py", line
39, in __init__
    self.xd = XendDomain.instance()
  File "/usr/lib/python2.4/site-packages/xen/xend/XendDomain.py", line 550, in
instance
    inst.init()
  File "/usr/lib/python2.4/site-packages/xen/xend/XendDomain.py", line 70, in init
    xstransact.Mkdir(VMROOT)
  File "/usr/lib/python2.4/site-packages/xen/xend/xenstore/xstransact.py", line
317, in Mkdir
    complete(path, lambda t: t.mkdir(*args))
  File "/usr/lib/python2.4/site-packages/xen/xend/xenstore/xstransact.py", line
323, in complete
    t = xstransact(path)
  File "/usr/lib/python2.4/site-packages/xen/xend/xenstore/xstransact.py", line
20, in __init__
    self.transaction = xshandle().transaction_start()
  File "/usr/lib/python2.4/site-packages/xen/xend/xenstore/xsutil.py", line 18,
in xshandle
    xs_handle = xen.lowlevel.xs.xs()
RuntimeError: (111, 'Connection refused')

Version-Release number of selected component (if applicable): 2.6.16-1.2111_FC5


How reproducible: Always


Steps to Reproduce:
1. Upgrade to kernel-xen0-2.6.16-1.2111_FC5
2. Reboot
3.
  
Actual results: Xend fails to start


Expected results: Xend starts successfully


Additional info: