| commit | d8a9e6a51ec58486f850e3606e3fcb86b5b7da41 | |
| author | Arjan van de Ven <arjan@linux.intel.com> | |
| Mon, 18 Feb 2008 17:54:33 +0000 (18 09:54 -0800) | ||
| committer | Ingo Molnar <mingo@elte.hu> | |
| Tue, 19 Feb 2008 15:18:34 +0000 (19 16:18 +0100) | ||
| tree | 78540cd48a23115db0c9b740076e3ab82bafd001 | treesnapshot (tar.gz zip) |
| parent | 7c6357da1185d286adaa4452d829ac9b27c4d12f | commitdiff |
x86: fix WARN_ON() message: teach page_is_ram() about the special 4Kb bios data page
This patch teaches page_is_ram() about the fact that the first
4Kb of memory are special on x86, even though the E820 table
normally doesn't exclude it.
This fixes the WARN_ON() reported by Laurent Riffard who was also
very helpful in diagnosing the issue.
[ mingo@elte.hu: we are working on doing this properly in the e820
space, but for 2.6.25 this is the better fix. ]
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This patch teaches page_is_ram() about the fact that the first
4Kb of memory are special on x86, even though the E820 table
normally doesn't exclude it.
This fixes the WARN_ON() reported by Laurent Riffard who was also
very helpful in diagnosing the issue.
[ mingo@elte.hu: we are working on doing this properly in the e820
space, but for 2.6.25 this is the better fix. ]
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| arch/x86/mm/ioremap.c | diffblobblamehistory |