Bug 1751054
| Summary: | Forward migration for guest with '-machine pseries-rhel7.6.0-sxxm'(using the default 'cap-ibs') from RHEL(ALT) 7.6 host to RHEL(AV) 8.1.0 host(with DD2.3 cpu revision) can't be done | ||
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| Product: | Red Hat Enterprise Linux 7 | Reporter: | Gu Nini <ngu> |
| Component: | Red_Hat_Enterprise_Linux-Release_Notes-7-en-US | Assignee: | Lenka Špačková <lkuprova> |
| Status: | CLOSED CURRENTRELEASE | QA Contact: | |
| Severity: | medium | Docs Contact: | Jiri Herrmann <jherrman> |
| Priority: | medium | ||
| Version: | 7.6 | CC: | dgibson, jherrman, knoel, lkuprova, lvivier, mdeng, micai, pkovar, qzhang, rhel-docs, xianwang, xuma, yihyu, zhenyzha |
| Target Milestone: | rc | Keywords: | Documentation |
| Target Release: | --- | ||
| Hardware: | ppc64le | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Known Issue | |
| Doc Text: |
.RHEL 7 virtual machines sometimes cannot boot on and migrate to Witherspoon hosts
RHEL 7 virtual machines (VMs) that use the `pseries-rhel7.6.0-sxxm` machine type in some cases fail to boot on _Power9 S922LC for HPC_ hosts (also known as Witherspoon) that use the DD2.3 CPU.
Attempting to boot such a VM instead generates the following error message:
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qemu-kvm: Requested safe indirect branch capability level not supported by kvm
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In addition, migrating VMs that use the `pseries-rhel7.6.0-sxxm` machine type to Witherspoon hosts from other hosts fails.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2020-01-28 15:25:09 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
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Description
Gu Nini
2019-09-11 06:06:25 UTC
> I'm not sure that RHEL-ALT-7.6 will even run on a DD2.3 host at all.
I've just tried that before commenting. I chose one of the Beaker machines from the link you provided above (ibm-p9wr-08) and the RHEL-ALT-7.6 installed fine, and I could log in. But I haven't tried running a VM with pseries-rhel7.6.0-sxxm, that's true.
So from what you write, there's really nothing related to in-place upgrades at all.
Feel free to change the bugzilla component.
> > I'm not sure that RHEL-ALT-7.6 will even run on a DD2.3 host at all. > I've just tried that before commenting. I chose one of the Beaker machines from the link you provided above (ibm-p9wr-08) and the RHEL-ALT-7.6 installed fine, and I could log in. But I haven't tried running a VM with pseries-rhel7.6.0-sxxm, that's true. Ok. If that does start, it's a security bug and we need to fix it immediately. > So from what you write, there's really nothing related to in-place upgrades at all. Correct - that's what I've been trying to say all along here. I'm not sure how we got down this wrong track. > Feel free to change the bugzilla component. I'm not sure who that's addressed to. I certainly don't know enough about RHV architecture to know what the right component is. As discusseed with David, this is probably just thing for documentation. I do not know, who is doc guy for RHV (Gu Nini? Lenka?). The release note has been published with RHEL 7.8 Beta: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7-beta/html-single/7.8_release_notes/index#known-issue_virtualization and will be updated if it is fixed in the future (as any other known issues documented in the Release Notes). Thank you all! |