linux-kernel - [PATCH] Fix early panic on amd64 due to typo in supported CPU section

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Message-ID: <20081012085103.GA30082@vana.vc.cvut.cz>
Date:	Sun, 12 Oct 2008 10:51:03 +0200
From:	Petr Vandrovec <petr@...drovec.name>
To:	linux-kernel@...r.kernel.org
Cc:	thomas.petazzoni@...e-electrons.com
Subject: [PATCH] Fix early panic on amd64 due to typo in supported CPU section

It seems that I forgot to CC LKML on that one...
						Petr

----- Forwarded message from Petr Vandrovec <petr@...drovec.name> -----

Date: Sun, 12 Oct 2008 10:01:26 +0200
From: Petr Vandrovec <petr@...drovec.name>
To: thomas.petazzoni@...e-electrons.com
Cc: mingo@...e.hu, tglx@...utronix.de, torvalds@...ux-foundation.org
Subject: [PATCH] Fix early panic on amd64 due to typo in supported CPU section

Do not crash when enumerating supported CPU architectures

SECURITY_INIT somehow ended up in x86_cpu_dev.init section.  That caused printk
in code which prints supported architectures to hit #GP due to non-canonical
address being used.

Signed-off-by: Petr Vandrovec <petr@...drovec.name>

diff --git a/arch/x86/kernel/vmlinux_64.lds.S b/arch/x86/kernel/vmlinux_64.lds.S
index 201e81a..46e0544 100644
--- a/arch/x86/kernel/vmlinux_64.lds.S
+++ b/arch/x86/kernel/vmlinux_64.lds.S
@@ -172,8 +172,8 @@ SECTIONS
   .x86_cpu_dev.init : AT(ADDR(.x86_cpu_dev.init) - LOAD_OFFSET) {
 	*(.x86_cpu_dev.init)
   }
-  SECURITY_INIT
   __x86_cpu_dev_end = .;
+  SECURITY_INIT
 
   . = ALIGN(8);
   .parainstructions : AT(ADDR(.parainstructions) - LOAD_OFFSET) {

----- End forwarded message -----
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