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SubjectRe: 2.6.19.2, cp 18gb_file 18gb_file.2 = OOM killer, 100% reproducible

On Sat, 20 Jan 2007, Justin Piszcz wrote:

>
>
> On Sat, 20 Jan 2007, Avuton Olrich wrote:
>
> > On 1/20/07, Justin Piszcz <jpiszcz@lucidpixels.com> wrote:
> > > Perhaps its time to back to a stable (2.6.17.13 kernel)?
> > >
> > > Anyway, when I run a cp 18gb_file 18gb_file.2 on a dual raptor sw raid1
> > > partition, the OOM killer goes into effect and kills almost all my
> > > processes.
> > >
> > > Completely 100% reproducible.
> > >
> > > Does 2.6.19.2 have some of memory allocation bug as well?
> >
> > I had been seeing something similar (also with 2.6.19.2), but it's not
> > outputting anything to dmesg, so I was waiting for something to happen
> > before I reported it. It's mostly the same thing, but I've only seen
> > it happen when copying something large (2+ GB) over NFS. Interactivity
> > completely goes away and lockups last 10-15 seconds a piece. Then
> > realized I turned the swap off, so I turned it on and didn't lockup
> > any longer.
> > --
> > avuton
> > --
> > Anyone who quotes me in their sig is an idiot. -- Rusty Russell.
> >
> >
>
> My swap is on, 2GB ram and 2GB of swap on this machine. I can't go back
> to 2.6.17.13 as it does not recognize the NICs in my machine correctly and
> the Alsa Intel HD Audio driver has bugs etc, I guess I am stuck with
> 2.6.19.2 :(
>
> Justin.
>
>

The weird part is nothing shows high memory usage in top or via ps, the
kernel just freaks and kill -9's almost all of my processes.

Nasty VM bug?

Justin.
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