Created attachment 1368498 [details] screenshot Trying to deploy hosted-engine on a 4GB VM with nested VT. The wizard showed: "There is insufficient memory available to support engine VM creation at this time!" See attachment. The error should give an hint on the minimum amount of RAM needed for the wizard to work.
Created attachment 1382747 [details] memory_limit1
Can reproduce. Test version: Host version : Red Hat Enterprise Linux Server release 7.5 Beta (Maipo) Guest version: rhvh-4.2.0.6-0.20180104.0+1(RHVH-4.2-20180104.0-RHVH-x86_64-dvd1.iso) cockpit-storaged-155-1.el7.noarch cockpit-ws-155-1.el7.x86_64 cockpit-dashboard-155-1.el7.x86_64 cockpit-155-1.el7.x86_64 cockpit-bridge-155-1.el7.x86_64 cockpit-system-155-1.el7.noarch cockpit-ovirt-dashboard-0.11.3-0.1.el7ev.noarch ovirt-hosted-engine-ha-2.2.2-1.el7ev.noarch ovirt-hosted-engine-setup-2.2.2-1.el7ev.noarch Test steps: 1. Open the RHEL7.5 Nested function 2. Install a VM(RHVH 4.2 rhvh-4.2.0.6-0.20180104.0+1) on the RHEL7.5 3. Set the VM cpu-type is "host-passthrough", memory is "4GB" 4. Deploy HE on the VM(RHVH4.2) via cockpit Test results: After step4, cockpit shows that "There is insufficient memory available to support engine VM creation at this time!" Attachments: https://bugzilla.redhat.com/attachment.cgi?id=1382747
Created attachment 1382749 [details] memory_limit2
Created attachment 1382750 [details] memory_no_warning
Retest with the new RHVH version(rhvh-4.2.1.1-0.20180115.0+1), it seems ok. Test version: Host version : Red Hat Enterprise Linux Server release 7.5 Beta (Maipo) Guest version: rhvh-4.2.1.1-0.20180115.0+1 cockpit-ws-157-1.el7.x86_64 cockpit-dashboard-157-1.el7.x86_64 cockpit-bridge-157-1.el7.x86_64 cockpit-157-1.el7.x86_64 cockpit-storaged-157-1.el7.noarch cockpit-system-157-1.el7.noarch cockpit-ovirt-dashboard-0.11.4-0.1.el7ev.noarch ovirt-hosted-engine-setup-2.2.5-1.el7ev.noarch ovirt-hosted-engine-ha-2.2.3-1.el7ev.noarch Test steps: 1. Open the RHEL7.5 Nested function 2. Install a VM(RHVH 4.2 rhvh-4.2.1.1-0.20180115.0+1) on the RHEL7.5 3. Set the VM cpu-type is "host-passthrough", memory is "4GB" 4. Deploy HE on the VM(RHVH4.2) via cockpit Test results: After step4, cockpit shows that "The minimum recommended amount of memory is 4,096MB. Currently, only 3,360MB is available." Attachment: https://bugzilla.redhat.com/attachment.cgi?id=1382749 Additional info: 1. If the available memory arrive the 4096MB, there is no warning shows. https://bugzilla.redhat.com/attachment.cgi?id=1382750 So, I will change the bug's status to VERIFIED if it arrives to ON_QA.
According to the comment 5, change the bug's status to verified.
This bugzilla is included in oVirt 4.2.1 release, published on Feb 12th 2018. Since the problem described in this bug report should be resolved in oVirt 4.2.1 release, it has been closed with a resolution of CURRENT RELEASE. If the solution does not work for you, please open a new bug report.