From: Vivek Goyal <vgoyal@in.ibm.com>
Date: Thu, 9 Nov 2006 01:44:41 +0000 (-0800)
Subject: [PATCH] i386: Force data segment to be 4K aligned
X-Git-Tag: v2.6.19-rc6~63
X-Git-Url: http://git.samba.org/samba.git/?p=sfrench%2Fcifs-2.6.git;a=commitdiff_plain;h=c06cb8b1c4d25e5b4d7a2d7c2462619de1e0dbc4

[PATCH] i386: Force data segment to be 4K aligned

o Currently there is no specific alignment restriction in linker script
  and in some cases it can be placed non 4K aligned addresses. This fails
  kexec which checks that segment to be loaded is page aligned.

o I guess, it does not harm data segment to be 4K aligned.

Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/arch/i386/kernel/vmlinux.lds.S b/arch/i386/kernel/vmlinux.lds.S
index adc1f232afee..c6f84a0322ba 100644
--- a/arch/i386/kernel/vmlinux.lds.S
+++ b/arch/i386/kernel/vmlinux.lds.S
@@ -51,6 +51,7 @@ SECTIONS
   __tracedata_end = .;
 
   /* writeable */
+  . = ALIGN(4096);
   .data : AT(ADDR(.data) - LOAD_OFFSET) {	/* Data */
 	*(.data)
 	CONSTRUCTORS