upowerd/gnome-power-statistics crash; high CPU, memory consumption

Bug #1721282 reported by PabloAB
This bug affects 6 people
Affects Status Importance Assigned to Milestone
upower (Ubuntu)
Fix Released

Bug Description

Not sure if necessary here since same bug is already on:

Tested on Ubuntu 16.04.3, 4.12.0-041200rc3-generic

Steps to reproduce:
1. have a system with a recent kernel (4.10.x or later)
2. start gnome-power-statistics
3. go to Pprocessor tab
4. have a look at gnome-system-monitor or htop

- On Processor section, Wakeups tab: "Processor wakeups pers second: GDBus.Error:org.freedesktop.UPower.GeneralError: cannot enable timerstats."
- High CPU usage of /usr/lib/upower/upowerd
- Crash gnome-power-statistics

Revision history for this message
PabloAB (pabloab777) wrote :
Revision history for this message
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in gnome-power-manager (Ubuntu):
status: New → Confirmed
Revision history for this message
Vincent Gerris (vgerris) wrote :

I see the same error but do not seem to get a high load on 18.04 dev.
The package name is gnome-power-statistics 3.25.90-2 (at least the gui).

Revision history for this message
Ubuntu QA Website (ubuntuqa) wrote :

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:

tags: added: iso-testing
Vlad Orlov (monsta)
tags: added: bionic xenial
Revision history for this message
Mauro (mauromol) wrote :

I'm experiencing high CPU usage by upowerd in Linux Mint 18.3 KDE (based on Ubuntu 16.04) with 4.15 kernel. I'm not using gnome-power-statistics, but I see the error message about missing /proc/timer_stats in my syslog.
I think it's bug https://bugs.freedesktop.org/show_bug.cgi?id=100626
Why the fix hasn't been applied to Xenial?

Revision history for this message
Sebastien Bacher (seb128) wrote :

That was fixed with that commit

The power statistic is not a main feature and Xenial is not the current LTS, that's rather low priority for a SRU in that serie

affects: gnome-power-manager (Ubuntu) → upower (Ubuntu)
Changed in upower (Ubuntu):
importance: Undecided → High
status: Confirmed → Fix Released
Revision history for this message
Mauro (mauromol) wrote :

But isn't this a sufficiently severe bug for a LTS release, considering that currenntly supported kernels cause this (so I would say it's a regression) and that when this happens the system battery is drained and the user may even hardly realise why?

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