Bug 860907
| Summary: | It reported an error when checked the schedinfo of the lxc guest | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | zhenfeng wang <zhwang> |
| Component: | libvirt | Assignee: | Michal Privoznik <mprivozn> |
| Status: | CLOSED ERRATA | QA Contact: | Virtualization Bugs <virt-bugs> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 6.4 | CC: | acathrow, ajia, dallan, dyasny, dyuan, gsun, mzhan, rwu |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | libvirt-0.10.2-2.el6 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2013-02-21 07:25:21 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: | |||
# virsh -c lxc:/// list Id Name State ---------------------------------------------------- 28110 toy running # cat /proc/mounts rootfs / rootfs rw 0 0 proc /proc proc rw,nosuid,nodev,noexec,relatime 0 0 sysfs /sys sysfs rw,seclabel,nosuid,nodev,noexec,relatime 0 0 devtmpfs /dev devtmpfs rw,seclabel,nosuid,relatime,size=3998736k,nr_inodes=999684,mode=755 0 0 devpts /dev/pts devpts rw,seclabel,relatime,gid=5,mode=620,ptmxmode=000 0 0 tmpfs /dev/shm tmpfs rw,seclabel,nosuid,nodev,relatime 0 0 /dev/sda1 / ext4 rw,seclabel,relatime,barrier=1,data=ordered 0 0 none /selinux selinuxfs rw,relatime 0 0 devtmpfs /dev devtmpfs rw,seclabel,nosuid,relatime,size=3998736k,nr_inodes=999684,mode=755 0 0 /proc/bus/usb /proc/bus/usb usbfs rw,relatime 0 0 none /proc/sys/fs/binfmt_misc binfmt_misc rw,relatime 0 0 sunrpc /var/lib/nfs/rpc_pipefs rpc_pipefs rw,relatime 0 0 gvfs-fuse-daemon /root/.gvfs fuse.gvfs-fuse-daemon rw,nosuid,nodev,relatime,user_id=0,group_id=0 0 0 10.66.90.121:/vol/S3/libvirtmanual /mnt nfs rw,relatime,vers=3,rsize=65536,wsize=65536,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=10.66.90.121,mountvers=3,mountport=4046,mountproto=udp,local_lock=none,addr=10.66.90.121 0 0 cgroup /cgroup/cpuset cgroup rw,relatime,cpuset 0 0 cgroup /cgroup/cpu cgroup rw,relatime,cpu 0 0 cgroup /cgroup/cpuacct cgroup rw,relatime,cpuacct 0 0 cgroup /cgroup/memory cgroup rw,relatime,memory 0 0 cgroup /cgroup/devices cgroup rw,relatime,devices 0 0 cgroup /cgroup/freezer cgroup rw,relatime,freezer 0 0 cgroup /cgroup/net_cls cgroup rw,relatime,net_cls 0 0 cgroup /cgroup/blkio cgroup rw,relatime,blkio 0 0 Patch proposed upstream: https://www.redhat.com/archives/libvir-list/2012-October/msg00009.html Moving to POST: http://post-office.corp.redhat.com/archives/rhvirt-patches/2012-October/msg00061.html pkgs:
libvirt-0.10.2-2.el6.x86_64
kernel-2.6.32-306.el6.x86_64
steps:
1. prepare a domain and start it:
# virsh -c lxc:///
Welcome to virsh, the virtualization interactive terminal.
Type: 'help' for help with commands
'quit' to quit
virsh # dumpxml vm1
<domain type='lxc'>
<name>vm1</name>
<uuid>386f5b25-43ee-9d62-4ce2-58c3809e47c1</uuid>
<memory unit='KiB'>500000</memory>
<currentMemory unit='KiB'>500000</currentMemory>
<vcpu placement='static'>1</vcpu>
<os>
<type arch='x86_64'>exe</type>
<init>/bin/sh</init>
</os>
<clock offset='utc'/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>destroy</on_crash>
<devices>
<emulator>/usr/libexec/libvirt_lxc</emulator>
<interface type='network'>
<mac address='52:54:00:f2:2c:ac'/>
<source network='default'/>
<target dev='veth1'/>
</interface>
<console type='pty'>
<target type='lxc' port='0'/>
</console>
</devices>
<seclabel type='none'/>
</domain>
virsh # start vm1
Domain vm1 started
virsh # list --all
Id Name State
----------------------------------------------------
28777 fedora-rawhide running
28918 vm1 running
2. check schedinfo
virsh # schedinfo vm1
Scheduler : posix
cpu_shares : 1024
vcpu_period : 100000
vcpu_quota : -1
# cat /cgroup/cpu/libvirt/lxc/vm1/cpu.shares
1024
This is working now.
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. http://rhn.redhat.com/errata/RHSA-2013-0276.html |
Description of problem: It reported an error when checked the schedinfo of the lxc guest Version-Release number of selected component (if applicable): libvirt-0.10.2-1.el6.x86_64 qemu-kvm-0.12.1.2-2.313.el6.x86_64 kernel-2.6.32-308.el6.x86_64 How reproducible: 100% Steps to Reproduce: 1 prepare the domain xml # cat lxc.xml <domain type='lxc'> <name>toy</name> <uuid>d1f4798b-bebf-d93c-1d97-fe1c1cb7c780</uuid> <memory>500000</memory> <currentMemory>500000</currentMemory> <vcpu>1</vcpu> <os> <type arch='x86_64'>exe</type> <init>/bin/sh</init> </os> <clock offset='utc'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>destroy</on_crash> <devices> <emulator>/usr/libexec/libvirt_lxc</emulator> <interface type='network'> <mac address='52:54:00:25:bf:e9'/> <source network='default'/> </interface> <console type='pty'> <target type='lxc' port='0'/> </console> </devices> </domain> 2 Define and start lxc guest. # virsh -c lxc:/// define lxc.xml # virsh -c lxc:/// start toy 3 get scheduler parameters of "toy" # cat /cgroup/cpu/libvirt/lxc/toy/cpu.shares 1024 4 get the value of cpu shares from cgroup # virsh -c lxc:/// schedinfo toy Scheduler : Unknown error: Requested operation is not valid: cgroup CPU controller is not mounted Actual results: it reported an error when I run the command "virsh -c lxc:/// schedinfo toy" Expected results: compare the value of cpu shares between we got in step 3 and step 4,they should have a same cpu-shares value,and no reporting any error Additional info: