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

[Vadim Rozenfeld]

On Sun, 2011-07-31 at 18:54 +0100, Stefan Hajnoczi wrote:
> On Sun, Jul 31, 2011 at 12:01 AM, Rick Vernam <address@hidden> wrote:
> > Public bug reported:
> >
> > Qemu host is Core i7, running Linux.  Guest is Windows XP sp3.
> > Often, qemu will crash shortly after starting (1-5 minutes) with a 
> > statement "qemu-system-x86_64: virtio: trying to map MMIO memory"
> > This has occured with qemu-kvm 0.14, qemu-kvm 0.14.1, qemu-0.15.0-rc0 and 
> > qemu 0.15.0-rc1.
> > Qemu is started as such:
> > qemu-system-x86_64 -cpu host -enable-kvm -pidfile 
> > /home/rick/qemu/hds/wxp.pid -drive 
> > file=/home/rick/qemu/hds/wxp.raw,if=virtio -m 768 -name WinXP -net 
> > nic,model=virtio -net user -localtime -usb -vga qxl -device virtio-serial 
> > -chardev spicevmc,name=vdagent,id=vdagent -device 
> > virtserialport,chardev=vdagent,name=com.redhat.spice.0 -spice 
> > port=1234,disable-ticketing -daemonize -monitor 
> > telnet:localhost:12341,server,nowait
> > The WXP guest has virtio 1.1.16 drivers for net and scsi, and the most 
> > current spice binaries from spice-space.org.
> 
> This is probably a guest virtio driver bug.
> 
> Vadim: Any known issues like this with 1.1.16?
No, it something new to me.
Will try to reproduce and fix it.
Thank you,
Vadim.  
> 
> Stefan