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xen-devel
Re: [Xen-devel] Paravirtualised drivers for fully virtualised domains
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To: |
"Zhao, Yunfeng" <yunfeng.zhao@xxxxxxxxx> |
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Subject: |
Re: [Xen-devel] Paravirtualised drivers for fully virtualised domains |
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From: |
Steven Hand <Steven.Hand@xxxxxxxxxxxx> |
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Date: |
Wed, 02 Aug 2006 09:56:10 +0100 |
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Cc: |
Steven.Hand@xxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxx, sos22@xxxxxxxxxxxxx, "He, Qing" <qing.he@xxxxxxxxx> |
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Delivery-date: |
Wed, 02 Aug 2006 01:59:45 -0700 |
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www-data@xxxxxxxxxxxxxxxxxx |
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In-reply-to: |
Message from "Zhao, Yunfeng" <yunfeng.zhao@xxxxxxxxx> of "Wed, 02 Aug 2006 16:23:18 +0800." <08B1877B2880CE42811294894F33AD5C68C426@xxxxxxxxxxxxxxxxxxxxxxxxxxxx> |
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Sender: |
xen-devel-bounces@xxxxxxxxxxxxxxxxxxx |
>>I found some issues regarding this patch.
>>When I'm trying to start windows as VMX guest (with no drivers, of course)
>>under this patch, the guests fail. I ran with three images, windows 2000,
>>XP and 2003.
>>
>>For 2000 and XP, QEMU windows do not show, there are two lines in the
>serial
>>output:
>> (XEN) Create event channels for vcpu 0.
>> (XEN) Send on unbound Xen event channel?
As you note yourself, this problem is very unlikely to be anything to do
with the new PV drivers or associated infrastructure.
I think your problem is more likely to be a race condition in the startup
of the qemu-dm helper process. If you check the latest /var/log/qemu-*.log
and see a message something like "xc_get_pfnlist returned -1" this means
that qemu-dm tried to interrogate the domain before it had been created.
(I've seen this myself before but only on non-debug builds of Xen)
We should fix this properly, but for now you can just retry.
cheers,
S.
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