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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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