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Re: [Xen-devel] VMX status report 11536:041be3f6b38e

To: "Yu, Ping Y" <ping.y.yu@xxxxxxxxx>
Subject: Re: [Xen-devel] VMX status report 11536:041be3f6b38e
From: Roland Paterson-Jones <roland@xxxxxxxxxxxx>
Date: Wed, 20 Sep 2006 08:53:46 +0200
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Yu, Ping Y wrote:

2).Create eight VMX domains simultaneously, usually, not all four VMX
domains can start successfully. only part of them can start, but two or
one will failed with the following messages " Error: Device 768 (vbd)
could not be connected. Hotplug scripts not working." or "Error: Device
5632 (vbd) could not be connected. Hotplug scripts not working."or "
Error: Device 0 (vif) could not be connected. Hotplug scripts not
working.".
We have seen this caused by time-outs due to a very busy dom-0.

Try increasing the timeout in ./tools/python/xen/xend/server/DevController.py, for example:

--- ./tools/python/xen/xend/server/DevController.py 2006-04-13 19:48:39.000000000 +0200 +++ ../xen-3.0.2-2patched/tools/python/xen/xend/server/DevController.py 2006-06-07 13:17:45.000000000 +0200
@@ -25,7 +25,7 @@
from xen.xend.xenstore.xstransact import xstransact, complete
from xen.xend.xenstore.xswatch import xswatch

-DEVICE_CREATE_TIMEOUT = 10
+DEVICE_CREATE_TIMEOUT = 3600
HOTPLUG_STATUS_NODE = "hotplug-status"
HOTPLUG_ERROR_NODE  = "hotplug-error"
HOTPLUG_STATUS_ERROR = "error"

Roland


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