Commit b9d19f4a authored Jun 26, 2008 by Yinghai Lu Committed by Ingo Molnar Jul 08, 2008

x86: fix memory setup bug



interesting...

[    0.000000]   mapped low ram: 0 - 20000000
[    0.000000]   low ram: 00000000 - 1fff0000
[    0.000000]   bootmap 00002000 - 00006000

max_pfn_mapped > max_low_pfn?

it seems init_memory_mapping reveals an old bug.

please check attached test patch.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

parent 383bc5ce

arch/x86/kernel/setup_32.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -427,7 +427,7 @@ void __init setup_arch(char **cmdline_p)
		find_low_pfn_range();

		/* max_pfn_mapped is updated here */
		init_memory_mapping(0, (max_low_pfn << PAGE_SHIFT));
		max_pfn_mapped = init_memory_mapping(0, (max_low_pfn << PAGE_SHIFT));

		reserve_initrd();