Re: [Qemu-devel] [Bug 818673] Re: virtio: trying to map MMIO memory

[Rick Vernam]

On Friday 16 September 2011 03:52:34 hkran wrote:
[snip]
> 
> I have tried many times with many restarts or shutdown-and-boot xp guest
> but failed to meet the crashing.
> (I am using the virtio drivers referenced in the earlier mail list.)
> my command:
> 
> /home/huikai/qemu15/bin/qemu  --enable-kvm  -m 768  -drive
> file=/home/huikai/winxp_dev.img,if=virtio  -net nic,model=virtio -net
> user -usb -usbdevice tablet  -localtime -vga qxl -device virtio-serial
> -chardev spicevmc,name=vdagent,id=vdagent -device
> virtserialport,chardev=vdagent,name=spice0 -spice
> port=1234,disable-ticketing   -monitor telnet:localhost:12341,server,nowait

Okay, I tried a variation of that:
qemu-system-x86_64 -cpu host -enable-kvm -m 1536 -pidfile 
/home/rick/qemu/hds/wxp.pid -drive file=/home/rick/qemu/hds/wxp.raw,if=virtio   
                     
-net nic,model=virtio -net user -localtime -usb -vga qxl -device virtio-serial 
-chardev spicevmc,name=vdagent,id=vdagent -device 
virtserialport,chardev=vdagent,name=spice0 -spice port=1234,disable-ticketing 
-monitor telnet:localhost:12341,server,nowait

And it's been running stable all day.
The differences between the command line that crashes and yours are:
- yours doesn't have "aio=native" in the -drive declaration.
- yours has some differences in the virtio-serial device declaration.
- yours has some differences in the virtserialport device declaration.

As time permits I'm going to try each of those differences individually.

Thanks,
-Rick