Bug 1121583
| Summary: | non-root user can use memtune to set limits but it can't work | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Luyao Huang <lhuang> |
| Component: | libvirt | Assignee: | Libvirt Maintainers <libvirt-maint> |
| Status: | CLOSED DUPLICATE | QA Contact: | Virtualization Bugs <virt-bugs> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 7.0 | CC: | acathrow, dyuan, jiahu, jmiao, jtomko, lhuang, mzhan, zpeng |
| Target Milestone: | rc | ||
| Target Release: | 7.0 | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2014-07-28 13:34:50 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 has been marked as a duplicate of bug 1023366 *** |
description of problem: non-root user can use memtune to set limits but it can't work. Version-Release number of selected component (if applicable): libvirt-1.1.1-29.el7_0.1.x86_64 How reproducible: 100% Steps to Reproduce: 1.$ virsh uri qemu:///session 2.$ virsh list --all Id Name State ---------------------------------------------------- - sdsd shut off 3.$ virsh memtune sdsd hard_limit : unlimited soft_limit : unlimited swap_hard_limit: unlimited 4.$ virsh memtune sdsd --hard-limit 1024000 --soft-limit 1024000 --swap-hard-limit 1024000 5.$ virsh memtune sdsd hard_limit : 1024000 soft_limit : 1024000 swap_hard_limit: 1024000 6.check in xml $ virsh dumpxml sdsd <memtune> <hard_limit unit='KiB'>1024000</hard_limit> <soft_limit unit='KiB'>1024000</soft_limit> <swap_hard_limit unit='KiB'>1024000</swap_hard_limit> </memtune> 7.$ virsh start sdsd Domain sdsd started 8.$ virsh memtune sdsd error: Unable to get number of memory parameters error: Requested operation is not valid: cgroup memory controller is not mounted 9.make sure there is no guest dir in cgroup /sys/fs/cgroup/memory/machine.slice/ 10.$ virsh memtune sdsd --hard-limit 1024000 --soft-limit 1024000 --swap-hard-limit 1024000 --live error: Unable to change memory parameters error: Requested operation is not valid: cgroup memory controller is not mounted $ virsh memtune sdsd --hard-limit 1024000 --soft-limit 1024000 --swap-hard-limit 1024000 error: Unable to change memory parameters error: Requested operation is not valid: cgroup memory controller is not mounted $ virsh memtune sdsd --hard-limit 1024000 --soft-limit 1024000 --swap-hard-limit 1024000 --config Actual results: memtune can't work in non-root user although it can set hard-limit soft-limit swap-hard-limit in xml, the output limit numerical value is not from cgroup and libvirt can't change cgroup in non-root user. Expected results: memtune can't be used in non-root and report error message should be:memtune can't use in user mode/session mode Additional info: