Public bug reported:
Binary package hint: laptop-mode-tools
When enabling battery polling in /etc/laptop-mode/conf.d/battery-level-
polling.conf, switching to battery results in crashing the laptop with
100% CPU usage, most of it being IOWait. Using htop I was able to see a
lot of laptop-mode battery-related processes running just before
crashing. When the laptop crashes, it usually has very high HDD usage
and is unresponsive to any keys. Magic SysRq key always works in
rebooting the laptop. I was able to fix this by disabling battery level
polling.
ProblemType: Bug
Architecture: i386
DistroRelease: Ubuntu 9.04
Package: laptop-mode-tools 1.47-1ubuntu1
PackageArchitecture: all
ProcEnviron:
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: laptop-mode-tools
Uname: Linux 2.6.28-11-generic i686
** Affects: laptop-mode-tools (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386
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laptop-mode crashes taking up 100% CPU with IOWait when polling for battery
level is enabled
https://bugs.launchpad.net/bugs/371525
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