From 02239c29967418284c05d58971894d658575e78c Mon Sep 17 00:00:00 2001 From: Jeff Dike Date: Thu, 10 May 2007 22:22:35 -0700 Subject: [PATCH] uml: shrink kernel stacks Make kernel stacks be 1 page on i386 and 2 pages on x86_64. These match the host values. Signed-off-by: Jeff Dike Cc: Paolo 'Blaisorblade' Giarrusso Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/Kconfig | 3 ++- arch/um/defconfig | 2 +- 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/um/Kconfig b/arch/um/Kconfig index b9c0f307a8fa..c504312219b4 100644 --- a/arch/um/Kconfig +++ b/arch/um/Kconfig @@ -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 diff --git a/arch/um/defconfig b/arch/um/defconfig index f938fa822146..a54d0efecae1 100644 --- a/arch/um/defconfig +++ b/arch/um/defconfig @@ -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 # -- 2.20.1