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    SubjectRe: 2.6.19-rc1-mm1+ memory problem
    On Mon, 20 Nov 2006 09:26:29 +0300
    Michael Raskin <a1d23ab4@mail.ru> wrote:

    > Short description: when X is loaded (maybe any heavy application is
    > sufficient, but I don't use anything heavy in console), 'free' says used
    > memory is growing.
    >
    > Keywords: memory.
    >
    > Kernel: built locally, gcc 4.0.3
    >
    > I have a strange problem with 2.6.19-rc-mm kernels. After I load X, I
    > notice that memory is marked used at rate of tens of KB/s. Then it
    > starts to swap very heavily, when physical memory is all used. I tried
    > to verify it - it is so with all -mm kernels after 2.6.19-rc1-mm1,
    > including 2.6.19-rc5-mm2. At the meantime everything works OK with
    > kernels 2.6.18-mm3 and 2.6.19-rc1 through 2.6.19-rc6. I do not see any
    > options that should be memory eating in my .config . Module list is
    > short enough to include inline.
    >
    > When I just run some things like periodical suck, oops proxy server etc
    > with X shut down, I do not notice "leak" from console because of small
    > fluctuations of memory use. When I run X and shut it down, used memory
    > count goes up a few megs (consistent with speed of eating it by X).
    >
    > I didn't find exactly this problem in lkml or www, though the problem
    > with OOM on 2.6.19-rc-mm seems similar.
    >
    > What should I check to fix problem or produce a useful bug report?

    Monitor /proc/meminfo

    If the leak is slab, monitor /proc/slabinfo and /proc/slab_allocators.
    /proc/slab_allocators needs CONFIG_DEBUG_SLAB_LEAK.

    Thanks.
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