[ovirt-users] oVirt 3.5 on RHEL 6.6 hyperv enabled breaks Windows VMs

[Markus Stockhausen]

Hi,

we are running the hyperv flags since months in our Win7 VMs without any issue. As we are still on OVirt 3.4 FC20 infrastructure we set them with hooks (and really depend on them).

Maybe RHEL related?

Markus

Am 24.10.2014 18:22 schrieb Charles Gruener <cgruener at gruener.us>:
https://bugzilla.redhat.com/show_bug.cgi?id=1110305

This enabled the hv_relaxed flag on all my Windows VMs, causing them to no longer boot.  The same thing would happen if I simply booted from the Windows install media.  I would get a screen with a stop error:

Your PC needs to restart.
Please hold down the power button.
Error Code: 0x0000001E
Parameters:
0xFFFFFFFFC0000096
0xFFFFF802C4044EA4
0x00000000000000000
0x00000000000000000

I created a file called /etc/ovirt-engine/osinfo.conf.d/01-windows.properties that had one line:

os.windows_xp.devices.hyperv.enabled.value = false

I restarted ovirt-engine and now I can start my Windows VMs.

Why does this occur?  Is it because I upgraded from 3.4 to 3.5?  Is there something else I'm doing wrong?  I would like to not need this workaround.  Thanks.

Charles
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