Re: [Xen-users] oom-killer keeps killing big un-tars

[Mark Williamson <mark.williamson@xxxxxxxxxxxx>]

Are you running any guest domains?  What are you using for the other domains 
filesystems?  Things like LVM snapshots and (especially) loopback devices 
over NFS can use lots of (non swappable) kernel memory in dom0 and cause OOM 
conditions quite easily.

Cheers,
Mark

On Wednesday 18 May 2005 16:43, Andrew Thompson wrote:
> Greetings,
>
> Several times now, I've been untarring some files in my dom0 and they've
> been killed by the oom-killer. I originally thought it might be because
> they were not in the foreground as I normally use screen. I just tried
> again without screen and it was killed again.
>
> I compiled Xen from a nightly snapshot that I downloaded a couple of
> weeks ago.
>
> xen root # ls -al xen-2.0-testing-src.tgz
> -rw-r--r--  1 root root 2432727 Apr 29 08:29 xen-2.0-testing-src.tgz
>
> The system is a dual processor P2 300 Dell Workstation. It has only
> 128MB RAM total. I've allocated 42MB RAM to dom0. dom0 also mounts a
> 256MB swap partition.
>
> Each time I've reviewed the /var/log/messages, there had been plenty of
> free swap space when the process was killed.
>
> I'm attaching sections from /var/log/messages where the process is
> killed.  Please let me know what else would be useful.
>
> What should my next step be?

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