r
Improve Kconfig description of CONFIG_CRASH_DUMP. Previously
it was too brief to be useful.
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Andi Kleen <[email protected]>
---
arch/i386/Kconfig | 7 +++++++
arch/x86_64/Kconfig | 9 ++++++++-
2 files changed, 15 insertions(+), 1 deletion(-)
Index: linux/arch/i386/Kconfig
===================================================================
--- linux.orig/arch/i386/Kconfig
+++ linux/arch/i386/Kconfig
@@ -759,6 +759,13 @@ config CRASH_DUMP
depends on HIGHMEM
help
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
hex "Physical address where the kernel is loaded" if (EMBEDDED || CRASH_DUMP)
Index: linux/arch/x86_64/Kconfig
===================================================================
--- linux.orig/arch/x86_64/Kconfig
+++ linux/arch/x86_64/Kconfig
@@ -484,7 +484,14 @@ config CRASH_DUMP
bool "kernel crash dumps (EXPERIMENTAL)"
depends on EXPERIMENTAL
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
hex "Physical address where the kernel is loaded" if (EMBEDDED || CRASH_DUMP)
On Thu, 10 Aug 2006 21:37:19 +0200 (CEST) Andi Kleen wrote:
> r
>
> Improve Kconfig description of CONFIG_CRASH_DUMP. Previously
> it was too brief to be useful.
>
> Cc: [email protected]
> Cc: [email protected]
>
> Signed-off-by: Andi Kleen <[email protected]>
>
> ---
> arch/i386/Kconfig | 7 +++++++
> arch/x86_64/Kconfig | 9 ++++++++-
> 2 files changed, 15 insertions(+), 1 deletion(-)
>
> Index: linux/arch/i386/Kconfig
> ===================================================================
> --- linux.orig/arch/i386/Kconfig
> +++ linux/arch/i386/Kconfig
> @@ -759,6 +759,13 @@ config CRASH_DUMP
> depends on HIGHMEM
> help
> 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
> hex "Physical address where the kernel is loaded" if (EMBEDDED || CRASH_DUMP)
> Index: linux/arch/x86_64/Kconfig
> ===================================================================
> --- linux.orig/arch/x86_64/Kconfig
> +++ linux/arch/x86_64/Kconfig
> @@ -484,7 +484,14 @@ config CRASH_DUMP
> bool "kernel crash dumps (EXPERIMENTAL)"
> depends on EXPERIMENTAL
> 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
> hex "Physical address where the kernel is loaded" if (EMBEDDED || CRASH_DUMP)
> -
Please fix indentation (use tabs consistently).
---
~Randy