From: Rafael J. Wysocki Date: Sat, 21 Jul 2007 15:11:09 +0000 (+0200) Subject: i386: do not restore reserved memory after hibernation X-Git-Tag: v2.6.23-rc1~72 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1c10070a55a38ad8489df8afd52c9a3ffd46bbb5;p=pandora-kernel.git i386: do not restore reserved memory after hibernation On some systems the ACPI NVS area is located in the first 1 MB of RAM and it is overwritten by the i386 code during the restore after hibernation. This confuses the ACPI platform firmware that doesn't update the AC adapter status appropriately as a result (http://bugzilla.kernel.org/show_bug.cgi?id=7995). The solution is to register the reserved memory in the first 1 MB as 'nosave', so that swsusp doesn't touch it during the restore. Also, this has been done on x86_64 for a long time now, so this patch makes the i386 restore code behave like the x86_64 one. [akpm@linux-foundation.org: build fix] Signed-off-by: Rafael J. Wysocki Acked-by: Pavel Machek Cc: David Rientjes Signed-off-by: Andrew Morton Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds --- Reading git-diff-tree failed