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[PATCH] i386/x86-64: Improve Kconfig description of CRASH_DUMP 

Improve Kconfig description of CONFIG_CRASH_DUMP. Previously
it was too brief to be useful.

Cc: vgoyal@in.ibm.com
Cc: ebiederm@xmission.com

Signed-off-by: Andi Kleen <ak@suse.de>
This commit is contained in:
Andi Kleen 2006-09-26 10:52:35 +02:00 committed by Andi Kleen
parent cbf9b4bb76
commit 1edf777803
2 changed files with 15 additions and 1 deletions
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7
arch/i386/Kconfig
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@ -761,6 +761,13 @@ config CRASH_DUMP
depends on HIGHMEM depends on HIGHMEM
help help
Generate crash dump after being started by kexec. Generate crash dump after being started by kexec.
This should be normally only set in special crash dump kernels
which are loaded in the main kernel with kexec-tools into
a specially reserved region and then later executed after
a crash by kdump/kexec. The crash dump kernel must be compiled
to a memory address not used by the main kernel or BIOS using
PHYSICAL_START.
For more details see Documentation/kdump/kdump.txt
config PHYSICAL_START config PHYSICAL_START
hex "Physical address where the kernel is loaded" if (EMBEDDED || CRASH_DUMP) hex "Physical address where the kernel is loaded" if (EMBEDDED || CRASH_DUMP)

9
arch/x86_64/Kconfig
View File

@ -488,7 +488,14 @@ config CRASH_DUMP
bool "kernel crash dumps (EXPERIMENTAL)" bool "kernel crash dumps (EXPERIMENTAL)"
depends on EXPERIMENTAL depends on EXPERIMENTAL
help help
Generate crash dump after being started by kexec. Generate crash dump after being started by kexec.
This should be normally only set in special crash dump kernels
which are loaded in the main kernel with kexec-tools into
a specially reserved region and then later executed after
a crash by kdump/kexec. The crash dump kernel must be compiled
to a memory address not used by the main kernel or BIOS using
PHYSICAL_START.
For more details see Documentation/kdump/kdump.txt
config PHYSICAL_START config PHYSICAL_START
hex "Physical address where the kernel is loaded" if (EMBEDDED || CRASH_DUMP) hex "Physical address where the kernel is loaded" if (EMBEDDED || CRASH_DUMP)