linux-kernel - Re: 2.6.19.2, cp 18gb_file 18gb_file.2 = OOM killer, 100% reproducible

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Message-ID: <Pine.LNX.4.64.0701201623570.5597@p34.internal.lan>
Date:	Sat, 20 Jan 2007 16:24:25 -0500 (EST)
From:	Justin Piszcz <jpiszcz@...idpixels.com>
To:	Avuton Olrich <avuton@...il.com>
cc:	linux-kernel@...r.kernel.org, linux-raid@...r.kernel.org
Subject: Re: 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@...idpixels.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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