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

[Vadim Rozenfeld]

On Thu, 2011-08-25 at 16:54 +0100, Stefan Hajnoczi wrote:
> On Thu, Aug 25, 2011 at 3:53 PM, David Rando <address@hidden> wrote:
> > Do you know if it's something related to the virtio net driver? anyone
> > tried going to the e1000 only? i have some machines with e1000 and some
> > of them with virtio-net, but i have crash no matter what driver is using
> > (but the virtio driver is installed anyway, despite i'm using the
> > e1000).
> >
> > I was searching in the git repository for windows drivers,
> > (http://git.kernel.org/?p=virt/kvm/kvm-guest-drivers-
> > windows.git;a=history;f=NetKVM/Common/ndis56common.h;hb=HEAD ) but
> > couldn't find anything related to this.
> >
> > Any news? i can't debug the driver, i would do it if i knew how.
> >
> > David Rando.
> >
> > --
> > You received this bug notification because you are a member of qemu-
> > devel-ml, which is subscribed to QEMU.
> > https://bugs.launchpad.net/bugs/818673
> >
> > Title:
> >  virtio: trying to map MMIO memory
> >
> > Status in QEMU:
> >  New
> >
> > Bug description:
> >  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.
> >
> > To manage notifications about this bug go to:
> > https://bugs.launchpad.net/qemu/+bug/818673/+subscriptions
> 
> Vadim,
> Have you had any luck reproducing this issue or any advice for David?
Guys, I'm sorry. Not yet. I'll try my best to trace this problem on the
following weekend.

Best,
Vadim.

> 
> Thanks,
> Stefan