[CentOS] Centos 7 kworker uses 100% of single core on mulit-core processor usage inquiry

Martes mailinglistmember at mgwigglesworth.net
Mon Apr 20 15:03:43 UTC 2015


Greetings Johnathan.

Thank you for the reply.

I have run top, and iftop, etc...

The only process that is listed is as follows:

Tasks: 272 total,   2 running, 270 sleeping,   0 stopped,   0 zombie
%Cpu(s):  7.1 us, 18.3 sy,  0.0 ni, 73.8 id,  0.7 wa,  0.0 hi,  0.1 si,  0.0 st
KiB Mem : 32679644 total,   402520 free,  9889728 used, 22387396 buff/cache
KiB Swap:        0 total,        0 free,        0 used. 21951812 avail Mem 

  PID USER      PR  NI    VIRT    RES    SHR S  %CPU %MEM     TIME+ COMMAND                                                  
   91 root      20   0       0      0      0 R  94.1  0.0   1540:35 kworker/7:1                  

This is the only worker that is currently taking up 100% of whatever core it is on. (Right now it is assigned core number 8)

My kernel is version 3.10.0-229.1.2.el7.x86_64.

I don't really have very much context to provide other than it wasn't a problem prior to restarting after I installed the new liquid cooler.

If I can provide any further analysis, or information for a more clear view of the issue, then let me know.

Thanks for getting back a reply.

Respectfully, 

Martes G Wigglesworth




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