Public bug reported:
Running powertop inside a KVM intel VM crashes with this output:
unknown op '{'
read_msr cpu0 0xe8 : Input/output error
powertop should not crash out to prompt.
Upstream patch supposed to address this:
https://github.com/fenrus75/powertop/commit/037906c55374cbf045f197b43c22314617dbfc21
1. $ lsb_release -rd
Description: Ubuntu Xenial Xerus (development branch)
Release: 16.04
2. $ apt-cache policy powertop
powertop:
Installed: 2.8-1
Candidate: 2.8-1
Version table:
*** 2.8-1 500
500 http://nova.clouds.archive.ubuntu.com/ubuntu xenial/main amd64
Packages
100 /var/lib/dpkg/status
3. sudo powertop should startup and run as it does on baremetal (without
error)
4. sudo powertop exits 254 and with the message above.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: powertop 2.8-1
ProcVersionSignature: User Name 4.3.0-7.18-generic 4.3.3
Uname: Linux 4.3.0-7-generic x86_64
ApportVersion: 2.19.4-0ubuntu1
Architecture: amd64
Date: Thu Feb 4 11:30:02 2016
Ec2AMI: ami-0000079f
Ec2AMIManifest: FIXME
Ec2AvailabilityZone: nova
Ec2InstanceType: m1.large
Ec2Kernel: None
Ec2Ramdisk: None
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: powertop
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: powertop (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug ec2-images xenial
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https://bugs.launchpad.net/bugs/1541837
Title:
powertop crashes inside intel kvm machine
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