Re: PROBLEM: oom killer and swap weirdness on 2.6.3* kernels

[David Rientjes]

On Tue, 27 Jul 2010, dave b wrote:

> Actually it turns out on 2.6.34.1 I can trigger this issue. What it
> really is, is that linux doesn't invoke the oom killer when it should
> and kill something off. This is *really* annoying.
> 

I'm not exactly sure what you're referring to, it's been two months and 
you're using a new kernel and now you're saying that the oom killer isn't 
being utilized when the original problem statement was that it was killing 
things inappropriately?

> I used the follow script - (on 2.6.34.1)
> cat ./scripts/disable_over_commit
> #!/bin/bash
> echo 2 > /proc/sys/vm/overcommit_memory
> echo 40 > /proc/sys/vm/dirty_ratio
> echo 5 > /proc/sys/vm/dirty_background_ratio
> 
> And I was still able to reproduce this bug.
> Here is some c  code to trigger the condition I am talking about.
> 
> 
> #include <stdlib.h>
> #include <stdio.h>
> 
> int main(void)
> {
> 	while(1)
> 	{
> 		malloc(1000);
> 	}
> 
> 	return 0;
> }
> 
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