Re: [3.13 regression] kswapd0 and ksoftirqd/0 CPU hogs

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On Wed, 1 Apr 2015, Michael Schmitz wrote:

Hi Mikael,
has anyone found a solution to this one?

3.18-rc5 has kswapd0 hogging the CPU - haven't seen ksoftirqd0 yet. 
Unpacking a large tarball tends to trigger this for me.

Alas, no.  I went back to the 3.10.xx kernels and they work Ok for me 
(they tend to hang during shutdown, but I can live with that).
  

I've followed the vm stats while running gunzip -c on a large file. I 
get an 'invalid compressed data' error at the very end of the gunzip 
run, and the file md5sum does not match what I get when uncompressing 
that file on another system with no error

Was that an aranym virtual machine or a physical one? If physical, can the 
error be reproduced using a virtual one (given same RAM size, kernel etc)?

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