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<body class='hmmessage'><div dir='ltr'>Hello,<div><br></div><div><br></div><div>I upgraded oVirt yesterday from 3.4.2 to 3.4.3 and performed a yum upgrade on all ovirt nodes as well without rebooting any of them.</div><div><br></div><div><br></div><div>After completing the upgrade, I tried to perform manual migration of VMs to a different host. The result was that all Windows 2003/2008 and CentOS 5 VMs were migrated successfully without any issues but all CentOS 6.5 VMs crashed although migration was completed successfully.</div><div><br></div><div><br></div><div>By looking the console of the CentOS 6.5 VMs I noticed that a few seconds after migration was complete, all the processes were killed, many out of memory errors were thrown as well as messages like "virtio_balloon virtio3: Out of puff! Cant' get 256 pages" and the VM ended up in kernel panic so I had to perform a manual poweroff and start the VM again.</div><div><br></div><div><br></div><div>Any ideas of what might be the cause? I have opened an urgent Bug for this (<a href="https://bugzilla.redhat.com/show_bug.cgi?id=1123274" target="_blank" style="font-size: 12pt;">https://bugzilla.redhat.com/show_bug.cgi?id=1123274</a>)</div><div><br></div><div><br></div><div>Thank you,</div><div><br></div><div><br></div><div>Sokratis</div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div> </div></body>
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