Thu, 04 Mar 2010 12:03:17 -0700, Jim Fehlig wrote:
>Hi Kan,
>
>I've received several reports of xend not starting with the following
>traceback
>
>[2010-03-04 13:24:10 9096] ERROR (SrvDaemon:349) Exception starting xend (
>'044dde78-2896-cb88-2ada-3c03a73c35c1')
>Traceback (most recent call last):
> File "/usr/lib64/python2.6/site-packages/xen/xend/server/SrvDaemon.py",
>line 341, in run
> servers = SrvServer.create()
> File "/usr/lib64/python2.6/site-packages/xen/xend/server/SrvServer.py",
>line 261, in create
> root.putChild('xend', SrvRoot())
> File "/usr/lib64/python2.6/site-packages/xen/xend/server/SrvRoot.py",
>line 40, in __init__
> self.get(name)
> File "/usr/lib64/python2.6/site-packages/xen/web/SrvDir.py", line 84, in
>get
> val = val.getobj()
> File "/usr/lib64/python2.6/site-packages/xen/web/SrvDir.py", line 52, in
>getobj
> self.obj = klassobj()
> File "/usr/lib64/python2.6/site-packages/xen/xend/server/SrvNode.py",
>line 30, in __init__
> self.xn = XendNode.instance()
> File "/usr/lib64/python2.6/site-packages/xen/xend/XendNode.py", line 1187
>, in instance
> inst = XendNode()
> File "/usr/lib64/python2.6/site-packages/xen/xend/XendNode.py", line 161,
> in __init__
> self._init_PSCSIs()
> File "/usr/lib64/python2.6/site-packages/xen/xend/XendNode.py", line 339,
> in _init_PSCSIs
> saved_HBA_uuid = saved_pscsis[pscsi_uuid].get('HBA', None)
>KeyError: '044dde78-2896-cb88-2ada-3c03a73c35c1'
>
>
>All reported cases involve fresh installs of dom0, so
>/var/lib/xend/state/ is empty. I wasn't able to reproduce the issue
>myself but a reporter was kind enough to try a debug patch. I found that
>vscsi_util.get_all_scsi_devices() returns several records containing
>same scsi_id. With /var/lib/xend/state/pscsi.xml non-existent and
>identical scsi_id, we access an element of saved_pscsis that does not
>exist. In fact, the list is empty.
>
>The attached patch catches the exception and allows xend to start but
>I'm not sure if this breaks other parts of the code. It looks safe to
>me but would like your review.
>
Hi Jim,
Thanks for your report and patch.
Are your SCSI devices multi-path configuration?
If so, the configuration isn't supported by pvSCSI of XenAPI yet.
I added a small fix to your patch. Could you send your Signed-off-by
line?
Signed-off-by: Masaki Kanno <kanno.masaki@xxxxxxxxxxxxxx>
Best regards,
Kan
multi_path_scsi.patch
Description: Binary data
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