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Subject[PATCH 6/6] UML - Shrink kernel stacks
Make kernel stacks be 1 page on i386 and 2 pages on x86_64.  These
matche the host values.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
--
arch/um/Kconfig | 2 +-
arch/um/defconfig | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)

Index: linux-2.6.21-mm/arch/um/Kconfig
===================================================================
--- linux-2.6.21-mm.orig/arch/um/Kconfig 2007-05-09 15:45:56.000000000 -0400
+++ linux-2.6.21-mm/arch/um/Kconfig 2007-05-09 16:06:03.000000000 -0400
@@ -277,7 +277,8 @@ config HIGHMEM

config KERNEL_STACK_ORDER
int "Kernel stack size order"
- default 2
+ default 1 if 64BIT
+ default 0 if !64BIT
help
This option determines the size of UML kernel stacks. They will
be 1 << order pages. The default is OK unless you're running Valgrind
Index: linux-2.6.21-mm/arch/um/defconfig
===================================================================
--- linux-2.6.21-mm.orig/arch/um/defconfig 2007-05-09 15:45:56.000000000 -0400
+++ linux-2.6.21-mm/arch/um/defconfig 2007-05-09 15:57:20.000000000 -0400
@@ -86,7 +86,7 @@ CONFIG_MCONSOLE=y
# CONFIG_MAGIC_SYSRQ is not set
CONFIG_NEST_LEVEL=0
# CONFIG_HIGHMEM is not set
-CONFIG_KERNEL_STACK_ORDER=2
+CONFIG_KERNEL_STACK_ORDER=0
CONFIG_UML_REAL_TIME_CLOCK=y

#
-
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