[PATCH 1/2] boot: increase stack size for kernel boot loader decompressor

From: Mike Travis
Date: Tue Mar 25 2008 - 21:43:47 EST


Increase stack size for the kernel bootloader decompressor. This is
needed to boot a kernel with NR_CPUS = 4096. I tested with 8k stack
size but that wasn't sufficient.

Based on:
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86.git

Signed-off-by: Mike Travis <travis@xxxxxxx>
---
arch/x86/boot/compressed/head_64.S | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- linux-2.6.25-rc5.orig/arch/x86/boot/compressed/head_64.S
+++ linux-2.6.25-rc5/arch/x86/boot/compressed/head_64.S
@@ -314,5 +314,5 @@ gdt_end:
/* Stack for uncompression */
.balign 4
user_stack:
- .fill 4096,4,0
+ .fill 16384,4,0
user_stack_end:

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