Re: [Xen-devel] Xend starting error on Xen-4.1.2

[Bei Guan <gbtju85@xxxxxxxxx>]

2013/8/29 Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>

Bei Guan <gbtju85@xxxxxxxxx> wrote:
>Hi,
>
>I have installed Xen-4.1.2 on Fedora8 and it works well.
>However, it doesn't work recently. The verbose error information and
>xend
>log is provided. I compiled the Xen, but it doesn't work.
>Any suggestion on this error is appreciated. Thank you very much in
>advance.
>

>[root@localhost xen]# */etc/init.d/xencommons start*
>Starting xenconsoled...
>[root@localhost xen]# */etc/init.d/xend start*
>.........
>[root@localhost xen]# *xm list*

>Error: Unable to connect to xend: No such file or directory. Is xend
>running?

>[root@localhost ~]# *xenstore-ls*
>tool = ""
> xenstored = ""
>
>[root@localhost ~]# *cat /var/log/xen/xend-debug.log*

>...
>Xend started at Thu Aug 29 14:45:44 2013.
>Exception starting xend: (5, 'Input/output error, while reading
>/local/pool/0/uuid')
>

>[root@localhost ~]# *cat /var/log/xen/xend.log*

>...
>[2013-08-29 14:45:44 7457] INFO (SrvDaemon:332) Xend Daemon started
>[2013-08-29 14:45:44 7457] INFO (SrvDaemon:336) Xend changeset:
>unavailable.
>[2013-08-29 14:45:44 7457] DEBUG (tcp:96) Listening on :8002
>[2013-08-29 14:45:44 7457] DEBUG (XendNode:332) pscsi record count: 2
>[2013-08-29 14:45:44 7457] DEBUG (XendCPUPool:747)
>recreate_active_pools
>[2013-08-29 14:45:44 7457] ERROR (SrvDaemon:349) Exception starting
>xend
>((5, 'Input/output error, while reading /local/pool/0/uuid'))
>Traceback (most recent call last):
>File "usr/lib/python2.5/site-packages/xen/xend/server/SrvDaemon.py",
>line
>341, in run
>    servers = SrvServer.create()
>File "usr/lib/python2.5/site-packages/xen/xend/server/SrvServer.py",
>line
>258, in create
>    root.putChild('xend', SrvRoot())
>File "usr/lib/python2.5/site-packages/xen/xend/server/SrvRoot.py", line
>40, in __init__
>    self.get(name)
>File "usr/lib/python2.5/site-packages/xen/web/SrvDir.py", line 84, in
>get
>    val = val.getobj()
>  File "usr/lib/python2.5/site-packages/xen/web/SrvDir.py", line 52, in
>getobj
>    self.obj = klassobj()
>File "usr/lib/python2.5/site-packages/xen/xend/server/SrvNode.py", line
>30, in __init__
>    self.xn = XendNode.instance()
>File "usr/lib/python2.5/site-packages/xen/xend/XendNode.py", line 1181,
>in instance
>    inst = XendNode()
>File "usr/lib/python2.5/site-packages/xen/xend/XendNode.py", line 163,
>in
>__init__
>    self._init_cpu_pools()
>File "usr/lib/python2.5/site-packages/xen/xend/XendNode.py", line 382,
>in
>_init_cpu_pools
>    XendCPUPool.recreate_active_pools()
>File "usr/lib/python2.5/site-packages/xen/xend/XendCPUPool.py", line
>754,
>in recreate_active_pools
>    uuid = xstransact.Read(path, 'uuid')
>File "usr/lib/python2.5/site-packages/xen/xend/xenstore/xstransact.py",
>line 307, in Read
>    return complete(path, lambda t: t.read(*args))
>File "usr/lib/python2.5/site-packages/xen/xend/xenstore/xstransact.py",
>line 363, in complete
>    result = f(t)
>File "usr/lib/python2.5/site-packages/xen/xend/xenstore/xstransact.py",
>line 307, in <lambda>
>    return complete(path, lambda t: t.read(*args))
>File "usr/lib/python2.5/site-packages/xen/xend/xenstore/xstransact.py",
>line 72, in read
>    return self._read(args[0])
>File "usr/lib/python2.5/site-packages/xen/xend/xenstore/xstransact.py",
>line 59, in _read
>    '%s, while reading %s' % (ex.args[1], path))
>RuntimeError: (5, 'Input/output error, while reading
>/local/pool/0/uuid')
>[2013-08-29 14:45:44 7456] INFO (SrvDaemon:220) Xend exited with status
>1.

Please use a more recent version of Fedora and Xen.  Say Fedora 19.

Thank you for your reply.

Maybe it works for Xen-4.1.2 on recent version of Fedora. However, I did some work on the network backend driver on Dom0(2.6.18.8-linux-xen, it's compiled on fedora8) based on Xen-4.1.2. It's different to port the to recent version of Fedora.

Thank you all the same.

--
Best Regards,

Bei Guan

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