[CentOS] centos 5.3 upgrade and duplicate processes running

D Tucny d at tucny.com
Fri Apr 10 03:44:11 UTC 2009


2009/4/10 Melinda Odom <info at designhosting.biz>

> Hi,
> I have a P4 3.2 linux server.
>
> Every since I upgrade to centos 5.3 I see duplicates when running top -c
> like:
>
> 3 root 34 19 0 0 0 S 0.0 0.0 0:00.13 [ksoftirqd/0]
> 4 root RT -5 0 0 0 S 0.0 0.0 0:00.00 [watchdog/0]
> 5 root RT -5 0 0 0 S 0.0 0.0 0:00.00 [migration/1]
> 6 root 34 19 0 0 0 S 0.0 0.0 0:00.64 [ksoftirqd/1]
> 7 root RT -5 0 0 0 S 0.0 0.0 0:00.00 [watchdog/1]
> 8 root 10 -5 0 0 0 S 0.0 0.0 0:00.03 [events/0]
> 9 root 10 -5 0 0 0 S 0.0 0.0 0:00.12 [events/1]
> 10 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 [khelper]
> 11 root 11 -5 0 0 0 S 0.0 0.0 0:00.00 [kthread]
> 15 root 10 -5 0 0 0 S 0.0 0.0 0:02.17 [kblockd/0]
> 16 root 10 -5 0 0 0 S 0.0 0.0 0:03.28 [kblockd/1]
> 17 root 17 -5 0 0 0 S 0.0 0.0 0:00.00 [kacpid]
> 90 root 16 -5 0 0 0 S 0.0 0.0 0:00.00 [cqueue/0]
> 91 root 16 -5 0 0 0 S 0.0 0.0 0:00.00 [cqueue/1]
> 94 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 [khubd]
> 96 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 [kseriod]
> 160 root 15 0 0 0 0 S 0.0 0.0 0:12.92 [pdflush]
> 161 root 15 0 0 0 0 S 0.0 0.0 0:21.17 [pdflush]
>
> I don't have watchdog installed either.
>
> It seems my load has also gone up
>
> How would I fix this so there are not duplicates running?
>

You have a dual core machine... Those duplicated processes are per CPU
kernel threads...

This is entirely normal and was exactly the same on centos 5.2 before the
upgrade...

The only way to make the duplicates go away is to use a single core single
processor...

d
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