From: Andrew Morton <akpm@osdl.org>
Date: Thu, 1 Apr 2004 05:52:20 +0000 (-0800)
Subject: [PATCH] run page_address_init() earlier
X-Git-Tag: v2.6.5~26
X-Git-Url: http://git.neil.brown.name/?a=commitdiff_plain;h=15f4ae0ca83565197ebfcd0ef1d77a76cf200b00;p=history.git

[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.
---

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)