I could not find if that CPU supported SSBD or not. Log into one your nodes via console and run, "cat /proc/cpuinfo" and check the "flags" section and see if SSBD is listed. If not, then look at your cluster config under the "General" section and see what it has for "Cluster CPU Type". Make sure it hasn't chosen a CPU type which it thinks has SSBD available. I have a Xeon X5670 and it does support SSBD and there is a specific CPU type selected named, "Intel Westmere IBRS SSBD Family". Hope this helps. ________________________________________ From: Christian Reiss <email(a)christian-reiss.de&gt; Sent: Wednesday, December 11, 2019 7:55 AM To: users(a)ovirt.org Subject: [ovirt-users] HCL: 4.3.7: Hosted engine fails Hey all, Using a homogeneous ovirt-node-ng-4.3.7-0.20191121.0 freshly created cluster using node installer I am unable to deploy the hosted engine. Everything else worked. In vdsm.log is a line, just after attempting to start the engine: libvirtError: the CPU is incompatible with host CPU: Host CPU does not provide required features: virt-ssbd I am using AMD EPYC 7282 16-Core Processors. I have attached - vdsm.log (during and failing the start) - messages (for bootup / libvirt messages) - dmesg (grub / boot config) - deploy.log (browser output during deployment) - virt-capabilites (virsh -r capabilities) I can't think -or don't know- off any other log files of interest here, but I am more than happy to oblige. notectl check tells me Status: OK Bootloader ... OK Layer boot entries ... OK Valid boot entries ... OK Mount points ... OK Separate /var ... OK Discard is used ... OK Basic storage ... OK Initialized VG ... OK Initialized Thin Pool ... OK Initialized LVs ... OK Thin storage ... OK Checking available space in thinpool ... OK Checking thinpool auto-extend ... OK vdsmd ... OK layers: ovirt-node-ng-4.3.7-0.20191121.0: ovirt-node-ng-4.3.7-0.20191121.0+1 bootloader: default: ovirt-node-ng-4.3.7-0.20191121.0 (3.10.0-1062.4.3.el7.x86_64) entries: ovirt-node-ng-4.3.7-0.20191121.0 (3.10.0-1062.4.3.el7.x86_64): index: 0 title: ovirt-node-ng-4.3.7-0.20191121.0 (3.10.0-1062.4.3.el7.x86_64) kernel: /boot/ovirt-node-ng-4.3.7-0.20191121.0+1/vmlinuz-3.10.0-1062.4.3.el7.x86_64 args: "ro crashkernel=auto rd.lvm.lv=onn_node01/swap rd.lvm.lv=onn_node01/ovirt-node-ng-4.3.7-0.20191121.0+1 rhgb quiet LANG=en_GB.UTF-8 img.bootid=ovirt-node-ng-4.3.7-0.20191121.0+1" initrd: /boot/ovirt-node-ng-4.3.7-0.20191121.0+1/initramfs-3.10.0-1062.4.3.el7.x86_64.img root: /dev/onn_node01/ovirt-node-ng-4.3.7-0.20191121.0+1 current_layer: ovirt-node-ng-4.3.7-0.20191121.0+1 The odd thing is the hosted engine vm does get started during initial configuration and works. Just when the ansible stuff is done an its moved over to ha storage the CPU quirks start. So far I learned that ssbd is a mitigation protection but the flag is not in my cpu. Well, ssbd is virt-ssbd is not. I am *starting* with ovirt. I would really, really welcome it if recommendations would include clues on how to make it happen. I do rtfm, but I was unable to find anything (or any solution) anywhere. Not after 80 hours of working on this. Thank you all. -Chris. -- Christian Reiss - email(a)christian-reiss.de /"\ ASCII Ribbon support(a)alpha-labs.net \ / Campaign X against HTML WEB alpha-labs.net / \ in eMails GPG Retrieval https://gpg.christian-reiss.de GPG ID ABCD43C5, 0x44E29126ABCD43C5 GPG fingerprint = 9549 F537 2596 86BA 733C A4ED 44E2 9126 ABCD 43C5 "It's better to reign in hell than to serve in heaven.", John Milton, Paradise lost.

Oh, shoot. Replied to the wrong email. I meant to reply to my own with subject "[ovirt-users] HostedEngine Deployment fails on AMD EPYC 7402P 4.3.7" How it came to reply to *this* thread I am unsure. My apologies. -Chris. On 08/01/2020 10:39, Christian Reiss wrote: -- with kind regards, mit freundlichen Gruessen, Christian Reiss