Messages in this thread | | | Date | Wed, 14 Sep 2011 05:57:54 -0700 (PDT) | Subject | Re: iotop: khugepaged at 99.99% (2.6.38.3) | From | Slawomir Czarko-Wasiutycz <> |
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On Thursday, April 21, 2011 1:28:18 AM UTC+2, Thomas Sattler wrote: > Hi there ... > > While running firefox (>50 open Tabs), khugepaged jumped to 99.99% > (according to 'iotop'). I killed firefox and nearly all running > programs but khugepaged was still at 99.99% IO while the system > was almost idle. I waited about 10 minutes, no improvement, so > I rebooted the machine. > Hi,
I have a similar problem.
System becomes unresponsive for few seconds up to a minute or so.
In my case the trigger seems to be compiling code in a Linux VM running in VMplayer.
Problem seems to go away if I do:
echo madvise > /sys/kernel/mm/transparent_hugepage/defrag
Kernel used: kernel-PAE-2.6.40.4-5.fc15.i686 SMP CONFIG_PREEMPT=n
Right now I'm trying the same kernel with CONFIG_PREEMPT=y and it looks like the problem doesn't occur.
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