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* Fwd: Fail to start xend in xen/stable-2.6.32.x (57028f01dcd263bcee41e00ddcda167a082ae075)
@ 2010-06-11  5:31 Mingfan Lu
  2010-06-12  0:45 ` Mingfan Lu
  0 siblings, 1 reply; 2+ messages in thread
From: Mingfan Lu @ 2010-06-11  5:31 UTC (permalink / raw)
  To: xen-devel


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Hi,
I want to use xenoprof in pv dom0. so i use  the patch from Dulloor (in
branch origin/xen/oprofile ) to the xen/stable-2.6.32.x
(57028f01dcd263bcee41e00ddcda167a082ae075).

My xen (version: 4.0.0) which is compied from the source code.
All seems to work, I even could use oprofile to collect samples.
But the xend which could not start normally.

check the xend.log, I find taht
{{{
[2010-06-11 10:34:31 5887] INFO (SrvDaemon:332) Xend Daemon started
[2010-06-11 10:34:31 5887] INFO (SrvDaemon:336) Xend changeset: unavailable.
[2010-06-11 10:34:32 5887] ERROR (SrvDaemon:349) Exception starting xend
((111, 'Connection refused'))
Traceback (most recent call last):
  File
"/usr/local/lib/python2.6/site-packages/xen/xend/server/SrvDaemon.py", line
341, in run
    servers = SrvServer.create()
  File
"/usr/local/lib/python2.6/site-packages/xen/xend/server/SrvServer.py", line
251, in create
    root.putChild('xend', SrvRoot())
  File "/usr/local/lib/python2.6/site-packages/xen/xend/server/SrvRoot.py",
line 40, in __init__
    self.get(name)
  File "/usr/local/lib/python2.6/site-packages/xen/web/SrvDir.py", line 84,
in get
    val = val.getobj()
  File "/usr/local/lib/python2.6/site-packages/xen/web/SrvDir.py", line 52,
in getobj
    self.obj = klassobj()
  File "/usr/local/lib/python2.6/site-packages/xen/xend/server/SrvNode.py",
line 30, in __init__
    self.xn = XendNode.instance()
  File "/usr/local/lib/python2.6/site-packages/xen/xend/XendNode.py", line
1141, in instance
    inst.save()
  File "/usr/local/lib/python2.6/site-packages/xen/xend/XendNode.py", line
578, in save
    self.save_networks()
  File "/usr/local/lib/python2.6/site-packages/xen/xend/XendNode.py", line
594, in save_networks
    for network_uuid in XendNetwork.get_all()])
  File "/usr/local/lib/python2.6/site-packages/xen/xend/XendBase.py", line
102, in get_record
    for key in keys])
  File "/usr/local/lib/python2.6/site-packages/xen/xend/XendNetwork.py",
line 196, in get_VIFs
    vms = XendDomain.instance().get_all_vms()
  File "/usr/local/lib/python2.6/site-packages/xen/xend/XendDomain.py", line
1882, in instance
    inst.init()
  File "/usr/local/lib/python2.6/site-packages/xen/xend/XendDomain.py", line
114, in init
    xstransact.Mkdir(XS_VMROOT)
  File
"/usr/local/lib/python2.6/site-packages/xen/xend/xenstore/xstransact.py",
line 355, in Mkdir
    complete(path, lambda t: t.mkdir(*args))
  File
"/usr/local/lib/python2.6/site-packages/xen/xend/xenstore/xstransact.py",
line 361, in complete
    t = xstransact(path)
  File
"/usr/local/lib/python2.6/site-packages/xen/xend/xenstore/xstransact.py",
line 29, in __init__
    self.transaction = xshandle().transaction_start()
  File "/usr/local/lib/python2.6/site-packages/xen/xend/xenstore/xsutil.py",
line 18, in xshandle
    xs_handle = xen.lowlevel.xs.xs()
Error: (111, 'Connection refused')
[2010-06-11 10:34:32 5886] INFO (SrvDaemon:220) Xend exited with status 1.
}}}

I go  check /proc/xen/capabilities , it contains control_d in this file.

and then I go to the /dev/xen, nothing in this directory.
It seems evtchn which is missing.

then I compile  xen_evtchn as  module (before, xen_evtchn is built-in), and
modprobe xen_evtchn manually
it seems evtchn in /dev/xen now.

Go on to execute /etc/init.d/xend start. just fail. the error log is the
same mentioned above.
and the evtchn is missing in /dev/xen now

try xenstored,

I got
{{{
ERROR Internal error: Could not open event channel interface (22 = Invalid
argument)
FATAL: Failed to open evtchn device: Invalid argument
}}}

any comments and suggestion?

Mingfan Lu

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2010-06-11  5:31 Fwd: Fail to start xend in xen/stable-2.6.32.x (57028f01dcd263bcee41e00ddcda167a082ae075) Mingfan Lu
2010-06-12  0:45 ` Mingfan Lu

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