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.
Hi, I haven't gotten to the bottom of it yet but wanted to let you know that I'm seeing a hang at the boot screen after the installer reboots. The Windows logo animation runs but the guest seems unable to make progress. Will let you know when there is a fix. The guest I'm testing is Windows 7 Professional 64-bit. As a workaround you can set x-data-plane=off to boot the guest for the first time. Subsequent boots will succeed with x-data-plane=on. Stefan
