Bug 963592
| Summary: | [virsh cmd] can not set emulator_period | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Jincheng Miao <jmiao> |
| Component: | libvirt | Assignee: | Martin Kletzander <mkletzan> |
| Status: | CLOSED CURRENTRELEASE | QA Contact: | Virtualization Bugs <virt-bugs> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 7.0 | CC: | acathrow, dyuan, gsun, lcui, mkletzan, mzhan |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | libvirt-1.0.6-1.el7 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2014-06-13 12:44:44 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: | |||
this bug is still in libvirt-1.0.5-2.el7.x86_64. I've found out the problem, but not the root cause, yet. I'm bisecting the sources now, so I'm assigning it to myself. Moving to POST with upstream commit v1.0.5-243-g0471637:
commit 0471637d5628106d058f0eb5516ffa7d5285cc6f
Author: Martin Kletzander <mkletzan>
Date: Thu May 16 14:37:54 2013 +0200
qemu: Fix cgroup handling when setting VCPU BW
This bug fix is verified. # rpm -q libvirt libvirt-1.0.6-1.el7.x86_64 # virsh schedinfo rhel7 Scheduler : posix cpu_shares : 2048 vcpu_period : 1000000 vcpu_quota : 1000 emulator_period: 1000000 emulator_quota : 1000 # virsh schedinfo rhel7 --set emulator_period=900000 Scheduler : posix cpu_shares : 2048 vcpu_period : 1000000 vcpu_quota : 1000 emulator_period: 900000 emulator_quota : 1000 This request was resolved in Red Hat Enterprise Linux 7.0. Contact your manager or support representative in case you have further questions about the request. |
Description of problem: set emulator_period failed, return "error: Unable to find emulator cgroup for rhel7: No such file or directory" Version-Release number of selected component (if applicable): libvirt-1.0.5-1.el7.x86_64 qemu-kvm-1.4.0-4.el7.x86_64 kernel-3.9.0-0.55.el7.x86_64 How reproducible: 100% Steps: 1. edit a domain with: <vcpu placement='auto'>2</vcpu> <cputune> <shares>2048</shares> <period>1000000</period> <quota>1000</quota> <emulator_period>1000000</emulator_period> <emulator_quota>1000</emulator_quota> <vcpupin vcpu='0' cpuset='0'/> <vcpupin vcpu='1' cpuset='1'/> <emulatorpin cpuset='2'/> </cputune> 2. start it [root@dhcp-66-71-41 ~]# virsh start rhel7 3. check schedinfo [root@dhcp-66-71-41 ~]# virsh schedinfo rhel7 Scheduler : posix cpu_shares : 2048 vcpu_period : 1000000 vcpu_quota : 1000 emulator_period: 1000000 emulator_quota : 1000 4. set emulator_period [root@dhcp-66-71-41 ~]# virsh schedinfo rhel7 --set emulator_period=900000 Scheduler : posix error: Unable to find emulator cgroup for rhel7: No such file or directory Actual results: cannot set emulator_period. Expected results: set emulator_period successfully.