Commit dd7dfad7 authored Nov 16, 2012 by Yinghai Lu Committed by H. Peter Anvin Nov 17, 2012

x86, mm: Set memblock initial limit to 1M

memblock_x86_fill() could double memory array.
If we set memblock.current_limit to 512M, so memory array could be around 512M.
So kdump will not get big range (like 512M) under 1024M.

Try to put it down under 1M, it would use about 4k or so, and that is limited.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Link: http://lkml.kernel.org/r/1353123563-3103-10-git-send-email-yinghai@kernel.org

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

parent ab951937

arch/x86/kernel/setup.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -890,7 +890,7 @@ void __init setup_arch(char **cmdline_p)

		cleanup_highmap();

		memblock.current_limit = get_max_mapped();
		memblock.current_limit = ISA_END_ADDRESS;
		memblock_x86_fill();

		/*