[Bug 374026] [NEW] Kernel threads using 100% on one of the two CPUs

[Arthur Lutz]

Public bug reported:

One of the two CPUs (AMD Athlon(tm) 64 X2 Dual Core Processor 3800+) is
always full with kernel threads. htop shows a full red bar on CPU1
(2nd). I don't know how to investigate this problem, to find out which
kernel thread is using all that CPU. I'm not even sure it has an impact
on the performance (but since I'm having problems with audio stuff I'd
like to be sure it's not this problem).

It seems that this problem was also reported here : http://osdir.com/ml
/ubuntu-studio-users/2009-03/msg00119.html

Anyone know where I should look ?

ProblemType: Bug
Architecture: amd64
DistroRelease: Ubuntu 9.04
Package: linux-image-2.6.28-3-rt 2.6.28-3.12
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: linux-rt
Uname: Linux 2.6.28-3-rt x86_64

** Affects: linux-rt (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug

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Kernel threads using 100% on one of the two CPUs
https://bugs.launchpad.net/bugs/374026
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