Re: [Qemu-devel] balloon driver on winxp guest start failed

[Vadim Rozenfeld <vrozenfe@redhat.com>]

On Fri, 2011-10-14 at 17:49 +0800, hkran wrote:
> On 10/14/2011 04:55 AM, Vadim Rozenfeld wrote:
> > On Thu, 2011-10-13 at 15:47 +0100, Stefan Hajnoczi wrote:
> >> On Thu, Oct 13, 2011 at 5:00 AM, hkran<hkran@vnet.linux.ibm.com>  wrote:
> >>> On 10/12/2011 07:09 PM, hkran wrote:
> >>>> I used balloon driver for windows  virtio-win-0.1-15.iso (from
> >>>> http://alt.fedoraproject.org/pub/alt/virtio-win/latest/images/bin/)
> >>>>
> >>>> following the install guard , I installed the balloon driver like this:
> >>>>
> >>>> devcon.exe install d:\wxp\x86\balloon.inf
> >>>> "PCI\VEN_1AF4&DEV_1002&SUBSYS_00051AF4&REV_00"
> >>>>   then reboot guest Os, but the status of driver installed is always
> >>>> incorrect, that show me the driver start failed (code 10) in the device
> >>>> manager.
> > Seems like a resource allocation problem
> >>>> I typed the following cmds in the monitor command line:
> >>>>
> >>>> (qemu) device_add virtio-balloon
> >>>> (qemu) info balloon
> >>>> balloon: actual=2048
> >>>> (qemu) balloon 1024
> >>>> (qemu) info balloon
> >>>> balloon: actual=2048
> >>>> (qemu) info balloon
> >>>> balloon: actual=2048
> >>>>
> >>>> And I also tried it by using "qemu -balloon virtio" param  when getting
> >>>> qemu up, the status is worse, the winxp guest froze at boot screen.
> >>>>
> >>>> Am I using balloon driver in a correct way?
> >>>>
> >>>>
> >>>>
> >>> For the boot failure case, I take more looks into it.  I open the trace
> >>> output and see the following when boot failed
> >>> Balloon driver, built on Oct 13 2011 10:46:59
> >>> ^M<-- DriverEntry
> >>> ^Mfile z:\source\kvm-guest-drivers-windows\balloon\sys\driver.c line 151
> >>> ^M-->  BalloonDeviceAdd
> >>> ^M<-- BalloonDeviceAdd
> >>> ^M-->  BalloonEvtDevicePrepareHardware
> >>> ^M<->  Port   Resource [0000C0A0-0000C0C0]
> >>> ^M<-- BalloonEvtDevicePrepareHardware
> >>> ^M-->  BalloonEvtDeviceD0Entry
> >>> ^M-->  BalloonInit
> >>> ^M-->  VIRTIO_BALLOON_F_STATS_VQ
> >>> ^M<-- BalloonInit
> >>> ^M-->  BalloonInterruptEnable
> >>> ^M<-- BalloonInterruptEnable
> >>>
> >>> here, the system is blocked.
> >>>
> >>> I compare it with the logfile in the normal case that I hot-plugin the
> >>> balloon device, and then find the system blocked before calling at
> >>> BalloonInterruptDpc.
> >>>
> > What about ISR? Can you try changing balloon size and check if balloon
> > ISR was invoked or not?
> >>> Is it meaning that we open the interrupt of balloon device too soon when
> >>> booting the system?
> >> I suggest CCing Vadim on virtio Windows driver questions.  Not sure if
> >> he sees every qemu-devel email.
> >>
> >> Stefan
> >
> >
> To make the issue clearer, I do more tests about that. Now I use the 
> package virtio-win-prewhql-0.1-15-sources.zip from 
> http://alt.fedoraproject.org/pub/alt/virtio-win/latest/images/src/
> The problem that the balloon driver status is incorrect was not 
> reproduced any longer, but boot failure still be there.
> more tests told me as if the failure will occur only in the case where 
> virtio-serial and balloon are all attached when qemu booting:
> 
> (qemu) [huikai@oc0100708617 ~]$ 
> /home/huikai/qemu15/bin/qemu-system-x86_64 --enable-kvm -m 2048   -drive 
> file=/home/huikai/xp_shanghai.img,if=virtio -net user  -net 
> nic,model=viga qxl -localtime -chardev stdio,id=muxstdio -mon 
> chardev=muxstdio -usb -usbdevice tablet -device virtio-serial,id=vs0 
> -chardev socket,path=/tmp/foo,server,nowait,id=foo -device 
> virtserialport,bus=vs0.0,chardev=foo,name=helloworld -serial 
> file:/tmp/xp_1014_6.log -balloon virtio,id=ball1
> 
> the trace:
> 
> Virtio-Serial driver started...built on Oct 14 2011 15:58:02
> ^M<--> VIOSerialEvtDeviceAdd
> ^M<--> VIOSerialInitInterruptHandling
> ^MBalloon driver, built on Oct 13 2011 17:34:56
> ^M<-- DriverEntry
> ^M--> BalloonDeviceAdd
> ^M<-- BalloonDeviceAdd
> ^M--> BalloonEvtDevicePrepareHardware
> ^M<-> Port   Resource [0000C0A0-0000C0C0]
> ^M<-- BalloonEvtDevicePrepareHardware
> ^M--> BalloonEvtDeviceD0Entry
> ^M--> BalloonInit
> ^M--> VIRTIO_BALLOON_F_STATS_VQ
> ^M<-- BalloonInit
> ^M--> BalloonInterruptEnable
> ^M<-- BalloonInterruptEnable
> ^M<--> VIOSerialEvtDevicePrepareHardware
> ^MIO Port Info  [0000C080-0000C0A0]
> ^MWe have multiport host
> ^MVirtIOConsoleConfig->max_nr_ports 31
> ^M<--> VIOSerialEvtDeviceD0Entry
> ^M<--> VIOSerialInitAllQueues
> ^M<--> VIOSerialFillQueue
> ^M--> VIOSerialAllocateBuffer
> ^M--> VIOSerialAddInBuf  buf = 89B13A50
> ^M--> VIOSerialAllocateBuffer
> ^M--> VIOSerialAddInBuf  buf = 89B13638
> ^M--> VIOSerialAllocateBuffer
> ^M--> VIOSerialAddInBuf  buf = 89C07E08
> ^M--> VIOSerialAllocateBuffer
> ^M--> VIOSerialAddInBuf  buf = 89C07C50
> ^M--> VIOSerialAllocateBuffer
> ^M--> VIOSerialAddInBuf  buf = 89C07A98
> ... ...
> ^M--> VIOSerialAllocateBuffer
> ^M--> VIOSerialAddInBuf  buf = 89BD14B8
> ^M--> VIOSerialAllocateBuffer
> ^M--> VIOSerialAddInBuf  buf = 89B826E8
> ^M--> VIOSerialAllocateBuffer
> ^M--> VIOSerialAddInBuf  buf = 89BE4450
> ^M--> VIOSerialAllocateBuffer
> ^M--> VIOSerialAddInBuf  buf = 89BE2398
> ^M--> VIOSerialAllocateBuffer
> ^M--> VIOSerialAddInBuf  buf = 89C53468
> ^M--> VIOSerialAllocateBuffer
> ^M--> VIOSerialAddInBuf  buf = 89C37E18
> ^M--> VIOSerialAllocateBuffer
> ^M--> VIOSerialAddInBuf  buf = 89C374C0
> ^M--> VIOSerialFreeBuffer  buf = 89C374C0, buf->va_buf = 89983000
> ^MVIOSerialRenewAllPorts
> ^M<--> VIOSerialFillQueue
> ^M--> VIOSerialAllocateBuffer
> ^M--> VIOSerialAddInBuf  buf = 89C374C0
> ^M--> VIOSerialFreeBuffer  buf = 89C374C0, buf->va_buf = 89983000
> ^MSetting VIRTIO_CONFIG_S_DRIVER_OK flag
> ^M
> 
> not any more output here.
> 
What does "info pci" say?
Best,
Vadim.
> 
>