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    Subject[RFC/PATCH 0/17][Kdump] Overview
    From
    Date
    Hi,

    This patchset restores back the kdump functionality on i386. Patchset
    contains the patches for user space (kexec-tools-1.101) and kernel space
    (2.6.12-rc1-mm3). Some of the user space patches are being released for
    the completeness.

    This patch set performs following.

    kexec-tool-1.101
    (http://www.xmission.com/~ebiederm/files/kexec/kexec-tools-1.101.tar.gz)
    -----------------------------------------------------------------------

    - Create a backup region and copy the first 640K of memory to backup
    region over a crash.
    - Generate Elf headers representing crashed memory and store in reserved
    region. Also appends the memmap= and elfcorehdr= parameters to command
    line internally to be passed to capture kernel.
    - Fills in the virtual addresses for linearly mapped region at the elf
    header creation time. This assists in limited debugging through gdb.
    - Adds another command line option "--crash-dump" to differentiate
    between kexec on panic and kexec on panic with crash dump on.


    2.6.12-rc1-mm3
    --------------

    - Retrieve physical address of elf core headers, stored by crashed
    kernel.
    - Export dump image in ELF format through /proc/vmcore interface.
    - Export raw dump image through /dev/oldmem interface.


    Following patches (as in series file) need to be dropped before applying
    the fresh ones.

    crashdump-documentation.patch
    crashdump-memory-preserving-reboot-using-kexec.patch
    crashdump-routines-for-copying-dump-pages.patch
    crashdump-routines-for-copying-dump-pages-fixes.patch
    crashdump-elf-format-dump-file-access.patch
    crashdump-linear-raw-format-dump-file-access.patch
    crashdump-linear-raw-format-dump-file-access-coding-style.patch


    I look forward for comments and suggestions. I have done basic testing
    on uni and SMP systems.

    Thanks
    Vivek

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