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| Who | When | What | Removed | Added |
|---|---|---|---|---|
| Jiri Denemark | 2017-11-01 21:19:51 UTC | Status | NEW | ASSIGNED |
| Assignee | libvirt-maint | jdenemar | ||
| Jiri Denemark | 2017-11-02 16:37:58 UTC | Status | ASSIGNED | POST |
| Doc Text | Cause: After upgrading libvirt to RHEL-7.4 while some QEMU/KVM domains with "host-model" CPU were running, libvirt could mark the domains as using a CPU feature which QEMU does not know. Consequence: This doesn't affect the running domains until they are saved, migrated, or their snapshot is made. Migrating such domain or restoring it from a saved state fails with a complain about unknown "cmt" feature. Fix: With this update, libvirt no longer adds unknown CPU features to guest CPU configuration. Moreover, if any domain which was running before the upgrade to RHEL-7.4 is still running, libvirt will automatically fix its configuration. And if such domain was saved, libvirt will drop the unknown CPU feature when it is asked to restore the domain. Result: Domains running before the upgrade to RHEL-7.4 can be migrated or restored if they were saved in the meantime. | |||
| Doc Type | If docs needed, set a value | Bug Fix | ||
| Xuesong Zhang | 2017-11-03 10:26:53 UTC | QA Contact | virt-bugs | zpeng |
| Jiri Denemark | 2017-11-06 15:00:55 UTC | Status | POST | MODIFIED |
| Fixed In Version | libvirt-3.2.0-14.el7_4.4 | |||
| errata-xmlrpc | 2017-11-06 15:09:38 UTC | Status | MODIFIED | ON_QA |
| Thomas Oulevey | 2017-11-08 10:46:26 UTC | CC | thomas.oulevey | |
| Thomas Oulevey | 2017-11-08 10:46:47 UTC | CC | thomas.oulevey | |
| Luyao Huang | 2017-11-13 08:47:53 UTC | CC | lhuang | |
| Flags | needinfo?(jdenemar) | |||
| Jiri Denemark | 2017-11-13 17:35:26 UTC | Flags | needinfo?(jdenemar) | needinfo?(lhuang) |
| Luyao Huang | 2017-11-14 02:04:00 UTC | Flags | needinfo?(lhuang) | |
| Jason | 2017-11-14 14:34:24 UTC | CC | jbryant | |
| Roman Hodain | 2017-11-14 14:51:43 UTC | Flags | needinfo?(jdenemar) | |
| Jiri Denemark | 2017-11-15 14:40:52 UTC | Flags | needinfo?(jdenemar) | |
| zhe peng | 2017-11-16 08:09:14 UTC | Status | ON_QA | VERIFIED |
| Jiri Herrmann | 2017-11-16 16:54:23 UTC | CC | jherrman | |
| Doc Text | Cause: After upgrading libvirt to RHEL-7.4 while some QEMU/KVM domains with "host-model" CPU were running, libvirt could mark the domains as using a CPU feature which QEMU does not know. Consequence: This doesn't affect the running domains until they are saved, migrated, or their snapshot is made. Migrating such domain or restoring it from a saved state fails with a complain about unknown "cmt" feature. Fix: With this update, libvirt no longer adds unknown CPU features to guest CPU configuration. Moreover, if any domain which was running before the upgrade to RHEL-7.4 is still running, libvirt will automatically fix its configuration. And if such domain was saved, libvirt will drop the unknown CPU feature when it is asked to restore the domain. Result: Domains running before the upgrade to RHEL-7.4 can be migrated or restored if they were saved in the meantime. | Previously, the libvirt service in some cases added the "cmt" CPU feature incompatible with the QEMU emulator to KVM guest virtual machines with CPU set to "host-model". As a consequence, migrating or restoring these guests failed. With this update, libvirt no longer adds "cmt" to domain features and automatically removes "cmt" from guest configuration if present. As a result, the affected guests can be migrated and restored correctly. | ||
| errata-xmlrpc | 2017-11-30 07:50:08 UTC | Status | VERIFIED | RELEASE_PENDING |
| errata-xmlrpc | 2017-11-30 16:06:34 UTC | Status | RELEASE_PENDING | CLOSED |
| Resolution | --- | ERRATA | ||
| Last Closed | 2017-11-30 11:06:34 UTC |
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