Re: [Xen-devel] HVM pvops failures

[Boris Derzhavets <bderzhavets@xxxxxxxxx>]

I've tried that :-

name = "Ubuntu810HVM"
builder = "hvm"
memory = "2048"
disk = ['phy:/dev/loop0,hdc:cdrom,r','phy:/dev/sdb7,hda,w']
vif = [ 'type=ioemu,bridge=eth0' ]
# device_model = "/usr/lib64/xen/bin/qemu-dm"
device_model = "device_model_wrap.sh"
kernel = "/usr/lib/xen/boot/hvmloader"
vnc=1
boot="d"
usb=1
usbdevice="tablet"
vcpus=1



cat device_model_wrap.sh
#!/bin/sh
  set -e
  exec strace -vvs500 -f -o ~boris/vm/qemu-dm.strace \
  /usr/lib64/xen/bin/qemu-dm "$@"


Same behavior. File qemu-dm.strace has not been created at all.
Content of log file under /var/log/xen is just the same.
xm dmesg is much less informative. Just 2-3 HVM lines


--- On Mon, 2/23/09, Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx> wrote:

From: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
Subject: Re: [Xen-devel] HVM pvops failures
To: "Andrew Lyon" <andrew.lyon@xxxxxxxxx>
Cc: "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Date: Monday, February 23, 2009, 11:21 AM

Andrew Lyon writes ("Re: [Xen-devel] HVM guest question (was Re: [PATCH]
ioemu: Cleanup the code of PCI passthrough.)"):
> On Mon, Feb 23, 2009 at 2:53 PM, Ian Jackson
<Ian.Jackson@xxxxxxxxxxxxx> wrote:
> > These messages are not very surprising.  Is it working ?
> 
> No, when try to start HVM on Xen unstable with pv_ops kernel I get this
error:

Ah.  This is rather odd.  Normally I would hope that xend would report
an exit status.  (I haven't tried pvops with
 qemu.)

I would suggest running qemu-dm under strace.  This can be done easily
enough with a simple wrapper script, something like:
  #!/bin/sh
  set -e
  exec strace -vvs500 -f -o /root/qemu-dm.strace \
    /usr/lib/xen/bin/qemu-dm "$@"
and then give the name of the script as device_model in your config file.

Ian.

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