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

[Rick Vernam]

On Friday 23 September 2011 14:07:17 Alon Levy wrote:

> On Thu, Sep 22, 2011 at 02:10:04PM -0500, Rick Vernam wrote:

> > On Friday 16 September 2011 12:42:02 Rick Vernam wrote:

> > > 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.

> >

> > Without "aio=native" ...

> > in the definition of virtserialport, I changed "name=spice0" to

> > "name=com.redhat.spice.0" - with this change, the guest vdagent works,

> > but it crashed...

>

> If you provide details on the crash maybe someone can help.

This email thread has details early on the thread, and there is a bug report here: https://bugs.launchpad.net/bugs/818673

All the details of the crash that are available to me are previously described.

>

> > > Thanks,

> > > -Rick