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Re: [Xen-devel] Bug for Xen-3.3.0-rc2: libpci read error. No emulation.

To: "Li, Haicheng" <haicheng.li@xxxxxxxxx>
Subject: Re: [Xen-devel] Bug for Xen-3.3.0-rc2: libpci read error. No emulation.
From: Yuji Shimada <shimada-yxb@xxxxxxxxxxxxxxx>
Date: Mon, 04 Aug 2008 16:18:56 +0900
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libpci error handling has been fixed in the latest ioemu-remote and
ioemu in xen-3.3.0-rc3-pre. If you test them, libpci read error
will disappear.

But I think hotplug issue is not caused by libpci read error.

I tested xen-3.3.0-rc3-pre (changeset:18212) with ioemu-remote
(commit:0a8ce1e7a87126a544f23209ef3a87346601f18a).  "libpci read
error" did not appear, but hotplugged NIC did not work.  I checked
/proc/interrupts on guest os, and found that guest os received msi
only once.

I try to find out the reason of the issue.

Thanks

--
Yuji Shimada

> On 32e, we create one guest, then hotplug attach one NIC to guest, guest
> can not get IP address via dhcp, guest qemu log shows "libpci read
> error. No emulation ".
> 
> Here is the bug entry:
> One 32e, hotplug attaching VT-d NIC to guest failed.
> http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1316.
> 
> -- haicheng
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-devel

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