[PATCH] kdump: Kconfig

- config option CONFIG_CRASH_DUMP

- Made it dependent on HIGHMEM.  This is required as capture kernel treats
  the previous kernel's memory as high memmory and stitches a PTE for
  accessing it.

Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig
index 0f391cbf116eeb572193a51d9be3993080865b72..6c02336fe2e4489b89a74632404cf8f5aec07b71 100644 (file)
--- a/arch/i386/Kconfig
+++ b/arch/i386/Kconfig
@@ -970,6 +970,13 @@ config KEXEC
          support.  As of this writing the exact hardware interface is
          strongly in flux, so no good recommendation can be made.
 
+config CRASH_DUMP
+       bool "kernel crash dumps (EXPERIMENTAL)"
+       depends on EMBEDDED
+       depends on EXPERIMENTAL
+       depends on HIGHMEM
+       help
+         Generate crash dump after being started by kexec.
 endmenu