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    SubjectRe: [PATCH] /proc/cpumem
    Itsuro Oda <> writes:

    > Hi, Eric and all
    > Attached is an implementation of /proc/cpumem.
    > /proc/cpumem shows the valid physical memory ranges.

    Interesting. My imagination when I proposed this
    was something based on struct resource that works
    like /proc/iomem on x86 but can be meaningfully
    be used on systems with where ram lives in a separate
    address space from io device memory.

    > example: amd64 8GB Mem
    > # cat /proc/cpumem
    > 0000000000000000 000000000009b800
    > 0000000000100000 00000000fbe70000
    > 0000000100000000 0000000100000000
    > #
    > start address and size. hex digit.

    The lack of a type field looses a fair amount of functionality compared
    to /proc/iomem. In particular you can't see where the ACPI data is.

    The other direction something like this can go is to dump
    the data structures in linux/mmzone.h

    > Any comments, recomendations and suggestions are welcom.
    > BTW, does not kexec/kdump run on 2.6.11-rc3-mm2 ?
    > How do I get and examine the latest kexec/kdump ?

    I'm not quite certain what is happening.

    I have been playing with kexec user space a little bit and a new
    development release is at:

    I have written a first pass at a user space core dump generator,
    using /dev/mem. /sbin/kexec still needs some work to prepare
    the ELF headers before a crash.

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      Last update: 2005-03-22 14:10    [W:0.020 / U:7.964 seconds]
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