lkml.org 
[lkml]   [2010]   [May]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: PROBLEM: oom killer and swap weirdness on 2.6.3* kernels
On 14 May 2010 22:53, dave b <db.pub.mail@gmail.com> wrote:
> In 2.6.3* kernels (test case was performed on the 2.6.33.3 kernel)
> when physical memory runs out and there is a large swap partition -
> the system completely stalls.
>
> I noticed that when running debian lenny using dm-crypt  with
> encrypted / and swap with a  2.6.33.3 kernel (and all of the 2.6.3*
> series iirc) when all physical memory is used (swapiness was left at
> the default 60) the system hangs and does not respond. It can resume
> normal operation some time later - however it seems to take a *very*
> long time for the oom killer to come in. Obviously with swapoff this
> doesn't happen - the oom killer comes in and does its job.
>
>
> free -m
>             total       used       free     shared    buffers     cached
> Mem:          1980       1101        879          0         58        201
> -/+ buffers/cache:        840       1139
> Swap:        24943          0      24943
>
>
> My simple test case is
>
> dd if=/dev/zero of=/tmp/stall
> and wait till /tmp fills...
>

Sorry - I forgot to say I am running x86-64
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2010-05-14 15:25    [W:0.064 / U:2.764 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site