Bug 1138221
| Summary: | Fail to managedsave while configure <cpu mode='host-model'> in the guest's xml | |||
|---|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | vivian zhang <vivianzhang> | |
| Component: | libvirt | Assignee: | Ján Tomko <jtomko> | |
| Status: | CLOSED ERRATA | QA Contact: | Virtualization Bugs <virt-bugs> | |
| Severity: | medium | Docs Contact: | ||
| Priority: | medium | |||
| Version: | 7.1 | CC: | dyuan, jmiao, mzhan, rbalakri, ydu, zhwang, zpeng | |
| Target Milestone: | rc | Keywords: | Regression | |
| Target Release: | --- | |||
| Hardware: | Unspecified | |||
| OS: | Unspecified | |||
| Whiteboard: | ||||
| Fixed In Version: | libvirt-1.2.8-2.el7 | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | ||
| Clone Of: | ||||
| : | 1138222 (view as bug list) | Environment: | ||
| Last Closed: | 2015-03-05 07:43:47 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: | ||||
| Bug Depends On: | ||||
| Bug Blocks: | 1138222 | |||
Upstream patch proposed: https://www.redhat.com/archives/libvir-list/2014-September/msg00297.html Now pushed upstream:
commit de0aeafe9ce3eb414c8b5d3aa8995d776a2952de
Author: Ján Tomko <jtomko>
CommitDate: 2014-09-05 12:45:19 +0200
Don't include non-migratable features in host-model
Commit fba6bc4 introduced support for the 'invtsc' feature,
which blocks migration. We should not include it in the
host-model CPU by default, because it's intended to be used
with migration.
https://bugzilla.redhat.com/show_bug.cgi?id=1138221
git describe: v1.2.8-32-gde0aeaf
verify with build : libvirt-1.2.8-2.el7.x86_64
step:
1: prepare a guest with xml:
....
<cpu mode='host-model'>
<model fallback='forbid'/>
<topology sockets='2' cores='4' threads='2'/>
</cpu>
....
2: start the guest
3: do managedsave
# virsh managedsave rhel6
Domain rhel6 state saved by libvirt
move to verified.
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://rhn.redhat.com/errata/RHSA-2015-0323.html |
Description of problem: Fail to managedsave while configure <cpu mode='host-model'> in the guest's xml Version-Release number of selected component (if applicable): libvirt-1.2.8-1.el7.x86_64 qemu-kvm-rhev-2.1.0-3.el7.x86_64 kernel-3.10.0-150.el7.x86_64 How reproducible: 100% Steps to Reproduce: 1. prepare a guest with <cpu mode='host-model'> #virsh dumpxml rhel7 -- <vcpu placement='static'>16</vcpu> -- <cpu mode='host-model'> <model fallback='forbid'/> <topology sockets='2' cores='4' threads='2'/> </cpu> 2. Start the guest #virsh start rhel7 3. managedsave the guest, will report the following error #virsh managedsave rhel7 error: Failed to save domain rhel7 state error: internal error: unable to execute QEMU command 'migrate': State blocked by non-migratable device 'cpu' 4. it works well on libvirt-1.2.6-1.el7 5.Also hit this issue in rhel6.6 Actual results: Fail to managedsave while configure <cpu mode='host-model'> in the guest's xml Expected results: should succeed to do managedsave