unable to run latencytop
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Confirmed
|
Medium
|
Unassigned |
Bug Description
When running latencytop as root:
mount: none is already mounted or /sys/kernel/debug busy
Please enable the CONFIG_LATENCYTOP configuration in your kernel.
Exiting...
# uname -a
Linux foo 4.4.0-36-generic #55-Ubuntu SMP Thu Aug 11 18:01:55 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
# lsb-release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 16.04.1 LTS
Release: 16.04
Codename: xenial
LatencyTop used to work Ubuntu 14.04 distributions.
---
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 Sep 18 17:01 seq
crw-rw---- 1 root audio 116, 33 Sep 18 17:01 timer
AplayDevices: Error: [Errno 2] No such file or directory
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
CRDA: N/A
DistroRelease: Ubuntu 16.04
Ec2AMI: ami-643d4217
Ec2AMIManifest: (unknown)
Ec2Availability
Ec2InstanceType: m4.large
Ec2Kernel: unavailable
Ec2Ramdisk: unavailable
IwConfig: Error: [Errno 2] No such file or directory
Lsusb: Error: command ['lsusb'] failed with exit code 1:
MachineType: Xen HVM domU
Package: linux (not installed)
PciMultimedia:
ProcEnviron:
TERM=xterm-
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB:
ProcKernelCmdLine: BOOT_IMAGE=
ProcVersionSign
RelatedPackageV
linux-
linux-
linux-firmware N/A
RfKill: Error: [Errno 2] No such file or directory
Tags: xenial ec2-images
Uname: Linux 4.4.0-36-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:
_MarkForUpload: True
dmi.bios.date: 05/12/2016
dmi.bios.vendor: Xen
dmi.bios.version: 4.2.amazon
dmi.chassis.type: 1
dmi.chassis.vendor: Xen
dmi.modalias: dmi:bvnXen:
dmi.product.name: HVM domU
dmi.product.
dmi.sys.vendor: Xen
description: | updated |
affects: | linux-meta (Ubuntu) → linux (Ubuntu) |
This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:
apport-collect 1624885
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.