[Qemu-devel] 回复： dataplane bug: fail to start Windows VM with dataplane enable

[leiqzhang]

Hi, Stefan:

    Thank for your reply and patch. I have done the test for Windows 7, Windows 2003, and fedora.

     The patch has fixed the problem now, thanks. 

-- 
leiqzhang

Sent by  Sparrow

在 2013年3月27日星期三，23:41，Stefan Hajnoczi 写道：

On Tue, Mar 26, 2013 at 11:10:35PM +0800, 张磊强 wrote:

Hi, Paolo && Stefan:

When I test the dataplane feature with qemu master, I find that

Windows (Windows 7 and Windows 2003) VM will hang if dataplane is

enabled. But if I try to start a Fedora VM, it can start normally.

The command I boot QEMU is:

x86_64-softmmu/qemu-system-x86_64 -enable-kvm -m 1024 -smp 2 -drive

file=win7.img,if=none,id=drive-virtio-disk,format=raw,cache=none,aio=native

-device virtio-blk-pci,config-wce=off,scsi=off,x-data-plane=on,drive=drive-virtio-disk,id=virtio-disk

I found the similar bug has reported some days ago:

http://lists.nongnu.org/archive/html/qemu-devel/2013-03/msg02200.html

. And a patch for this bug has already committed by Paolo at Mar 13:

http://lists.nongnu.org/archive/html/qemu-devel/2013-03/msg02200.html

.

But it cannot work under my environment. Could you give me some advise

to debug this problem ? I can provide more information if need.

I sent a fix and CCed you on the patch. Please test it if you have

time.

Stefan