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Date:	Sat, 5 Jul 2008 00:05:30 +0200
From:	"Rafael J. Wysocki" <>
To:	Ingo Molnar <>
Cc:	ACPI Devel Maling List <>,
	Andi Kleen <>,
	Andrew Morton <>,
	LKML <>,
	pm list <>
Subject: [PATCH] x86 ACPI: Fix resume from suspend to RAM on uniprocessor x86-64

Hi Ingo,

This is a regression fix, please push to Linus ASAP.


From: Rafael J. Wysocki <>

Since the trampoline code is now used for ACPI resume from suspend to RAM,
the trampoline page tables have to be fixed up during boot not only on SMP
systems, but also on UP systems that use the trampoline.


Signed-off-by: Rafael J. Wysocki <>
 arch/x86/kernel/head_64.S |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux-2.6/arch/x86/kernel/head_64.S
--- linux-2.6.orig/arch/x86/kernel/head_64.S
+++ linux-2.6/arch/x86/kernel/head_64.S
@@ -128,7 +128,7 @@ ident_complete:
 	/* Fixup phys_base */
 	addq	%rbp, phys_base(%rip)
-#ifdef CONFIG_SMP
 	addq	%rbp, trampoline_level4_pgt + 0(%rip)
 	addq	%rbp, trampoline_level4_pgt + (511*8)(%rip)
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