running guests freeze when a guest is powered down
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
libvirt (Fedora) |
Fix Released
|
Medium
|
|||
libvirt (Ubuntu) |
Fix Released
|
Low
|
Unassigned | ||
linux (Ubuntu) |
Invalid
|
Undecided
|
Unassigned |
Bug Description
Binary package hint: qemu-kvm
I'm running multiple guests via libvirt+kvm on my laptop. When I power off one them, all remaining running guests freeze for 30 seconds.
On the host, top shows the ksmd process as using the most cpu.
I've attached a sar output file. One guest was powered down 02:56:07 PM. The remaining running guest froze until 02:56:37 PM.
ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: qemu-kvm 0.12.5+
ProcVersionSign
Uname: Linux 2.6.35-22-generic x86_64
Architecture: amd64
Date: Wed Nov 10 14:58:57 2010
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
KvmCmdLine:
UID PID PPID C SZ RSS PSR STIME TTY TIME CMD
117 28028 1 9 155582 296184 2 14:54 ? 00:00:26 /usr/bin/kvm -S -M pc-0.12 -enable-kvm -m 390 -smp 1,sockets=
MachineType: LENOVO 3249CTO
ProcCmdLine: BOOT_IMAGE=
ProcEnviron:
PATH=(custom, user)
LANG=en_CA.utf8
SHELL=/bin/bash
SourcePackage: qemu-kvm
dmi.bios.date: 01/26/2010
dmi.bios.vendor: LENOVO
dmi.bios.version: 6QET35WW (1.05 )
dmi.board.name: 3249CTO
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.
dmi.modalias: dmi:bvnLENOVO:
dmi.product.name: 3249CTO
dmi.product.
dmi.sys.vendor: LENOVO
affects: | qemu-kvm (Ubuntu) → libvirt (Ubuntu) |
Changed in libvirt (Ubuntu): | |
assignee: | Serge Hallyn (serge-hallyn) → nobody |
tags: | added: server-nrs |
Changed in libvirt (Ubuntu): | |
status: | Confirmed → In Progress |
assignee: | nobody → Serge Hallyn (serge-hallyn) |
Changed in libvirt (Ubuntu): | |
importance: | High → Low |
status: | In Progress → Triaged |
assignee: | Serge Hallyn (serge-hallyn) → nobody |
tags: | removed: server-nrs |
Changed in libvirt (Fedora): | |
importance: | Unknown → Medium |
status: | Unknown → Fix Released |
The kvm command line included in the attached information is the remaining running guest that freezes for 30 seconds after another guest is shutdown. It's started from libvirt and both guests use a qemu snapshot file as the backend for their disk device.