RE: [PATCH] x86: trim ACPI sleep stack buffer

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On Thu, 2008-10-09 at 10:23 -0700, Moore, Robert wrote:
> Sounds like you need a
> 
> #define DEFAULT_STACK_SIZE 4096
> 
> Somewhere.

Or maybe something like this:


x86: remove magic number from ACPI sleep stack buffer

Signed-off-by: Matt Mackall <mpm@xxxxxxxxxxx>

diff -r 375a00b8bf10 arch/x86/kernel/acpi/sleep.c
--- a/arch/x86/kernel/acpi/sleep.c	Thu Oct 09 12:38:55 2008 -0500
+++ b/arch/x86/kernel/acpi/sleep.c	Thu Oct 09 12:40:10 2008 -0500
@@ -97,7 +97,7 @@
 #else /* CONFIG_64BIT */
 	header->trampoline_segment = setup_trampoline() >> 4;
 #ifdef CONFIG_SMP
-	stack_start.sp = temp_stack + 4096;
+	stack_start.sp = temp_stack + sizeof(temp_stack);
 #endif
 	initial_code = (unsigned long)wakeup_long64;
 	saved_magic = 0x123456789abcdef0;


-- 
Mathematics is the supreme nostalgia of our time.

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