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    Subject[Patch 3/8] ia64: add CONFIG_KEXEC_AUTO_RESERVE

    Introduce a new config option KEXEC_AUTO_RESERVE for ia64.

    Signed-off-by: WANG Cong <amwang@redhat.com>
    Acked-by: Neil Horman <nhorman@tuxdriver.com>

    ---

    Index: linux-2.6/arch/ia64/Kconfig
    ===================================================================
    --- linux-2.6.orig/arch/ia64/Kconfig
    +++ linux-2.6/arch/ia64/Kconfig
    @@ -582,6 +582,20 @@ config KEXEC
    support. As of this writing the exact hardware interface is
    strongly in flux, so no good recommendation can be made.

    +config KEXEC_AUTO_RESERVE
    + bool "automatically reserve memory for kexec kernel"
    + depends on KEXEC
    + default y
    + ---help---
    + Automatically reserve memory for a kexec kernel, so that you don't
    + need to specify numbers for the "crashkernel=X@Y" boot option,
    + instead you can use "crashkernel=auto". To make this work, you need
    + to have more than 4G memory.
    +
    + The reserved memory size is different depends on how much memory
    + you actually have. Please check Documentation/kdump/kdump.txt.
    + If you doubt, say N.
    +
    config CRASH_DUMP
    bool "kernel crash dumps"
    depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)

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