From 15f4ae0ca83565197ebfcd0ef1d77a76cf200b00 Mon Sep 17 00:00:00 2001
From: Andrew Morton <akpm@osdl.org>
Date: Wed, 31 Mar 2004 21:52:20 -0800
Subject: [PATCH] [PATCH] run page_address_init() earlier

If someone runs page_address() before page_address_init(), the kernel locks
up over uninitialised spinlocks.

This only happens with the 4:4 patch, but it is more robust to run
page_address_init() before setup_arch().  page_address_init() simply
initialises statically allocated storage.
---
 init/main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/init/main.c b/init/main.c
index 07f94366efca..9d1ed1de14c5 100644
--- a/init/main.c
+++ b/init/main.c
@@ -409,6 +409,7 @@ asmlinkage void __init start_kernel(void)
  * enable them
  */
 	lock_kernel();
+	page_address_init();
 	printk(linux_banner);
 	setup_arch(&command_line);
 	setup_per_cpu_areas();
@@ -452,7 +453,6 @@ asmlinkage void __init start_kernel(void)
 		initrd_start = 0;
 	}
 #endif
-	page_address_init();
 	mem_init();
 	kmem_cache_init();
 	if (late_time_init)
-- 
2.39.5